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Usman J, Abba SI, Baig N, Abu-Zahra N, Hasan SW, Aljundi IH. Design and Machine Learning Prediction of In Situ Grown PDA-Stabilized MOF (UiO-66-NH 2) Membrane for Low-Pressure Separation of Emulsified Oily Wastewater. ACS Appl Mater Interfaces 2024; 16:16271-16289. [PMID: 38514254 DOI: 10.1021/acsami.4c00752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Significant progress has been made in designing advanced membranes; however, persistent challenges remain due to their reduced permeation rates and a propensity for substantial fouling. These factors continue to pose significant barriers to the effective utilization of membranes in the separation of oil-in-water emulsions. Metal-organic frameworks (MOFs) are considered promising materials for such applications; however, they encounter three key challenges when applied to the separation of oil from water: (a) lack of water stability; (b) difficulty in producing defect-free membranes; and (c) unresolved issue of stabilizing the MOF separating layer on the ceramic membrane (CM) support. In this study, a defect-free hydrolytically stable zirconium-based MOF separating layer was formed through a two-step method: first, by in situ growth of UiO-66-NH2 MOF into the voids of polydopamine (PDA)-functionalized CM during the solvothermal process, and then by facilitating the self-assembly of UiO-66-NH2 with PDA using a pressurized dead-end assembly. A stable MOF separating layer was attained by enriching the ceramic support with amines and hydroxyl groups using PDA, which assisted in the assembly and stabilization of UiO-66-NH2. The PDA-s-UiO-66-NH2-CM membrane displayed air superhydrophilicity and underwater superoleophobicity, demonstrating its oil resistance and high antifouling behavior. The PDA-s-UiO-66-NH2-CM membrane has shown exceptionally high permeability and separation capacity for challenging oil-in-water emulsions. This is attributed to numerous nanochannels from the membrane and its high resistance to oil adhesion. The membranes showed excellent stability over 15 continuous test cycles, which indicates that the developed MOFs separating layers have a low tendency to be clogged by oil droplets during separation. Machine learning-based Gaussian process regression (GPR) models as nonparametric kernel-based probabilistic models were employed to predict the performance efficiency of the PDA-s-UiO-66-NH2-CM membrane in oil-in-water separation. The outcomes were compared with the support vector machine (SVM) and decision tree (DT) algorithm. This efficiency includes various metrics related to its separation accuracy, and the models were developed through feature engineering to identify and utilize the most significant factors affecting the membrane's performance. The results proved the reliability of GPR optimization with the highest prediction accuracy in the validation phase. The average percentage increase of the GPR model compared to the SVM and DT model was 6.11 and 42.94%, respectively.
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Affiliation(s)
- Jamilu Usman
- Interdisciplinary Research Centre for Membranes and Water Security (IRC-MWS), King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Sani I Abba
- Interdisciplinary Research Centre for Membranes and Water Security (IRC-MWS), King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Nadeem Baig
- Interdisciplinary Research Centre for Membranes and Water Security (IRC-MWS), King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Nidal Abu-Zahra
- Materials Science and Engineering Department, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, Wisconsin 53201, United States
| | - Shadi W Hasan
- Center for Membranes and Advanced Water Technology (CMAT), Department of Chemical and Petroleum Engineering, Khalifa University of Science and Technology, P.O. Box 127788 Abu Dhabi, United Arab Emirates
| | - Isam H Aljundi
- Interdisciplinary Research Centre for Membranes and Water Security (IRC-MWS), King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
- Chemical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
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2
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Tabassum J, Baig N, Sohail M, Nafady A, Shah SSA, Ul-Hamid A, Tsiakaras P. Novel and efficient Bi-doped CoTe nano-solar evaporators embedded on leno weave cotton gauze for efficient solar-driven desalination. J Colloid Interface Sci 2024; 658:758-771. [PMID: 38150932 DOI: 10.1016/j.jcis.2023.12.089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 12/11/2023] [Accepted: 12/13/2023] [Indexed: 12/29/2023]
Abstract
Solar-driven desalination is considered an alternative to the conventional desalination due to its nearly zero carbon footprint and ease of operating in remote areas. Water can be purified wherever sunlight is available, providing a viable solution to water shortage. Metal chalcogenide-based materials are revolutionary for solar evaporators due to their excellent photothermal conversion efficiency, facile synthesis methods, stability, and low cost. Herein we present a prototype Bi-doped CoTe nano-solar evaporator embedded on leno weave cotton gauze (Bi/CoTe@CG) using the sonication process. The nano-solar evaporator was synthesized using a simple hydrothermal approach to provide an opportunity to scale up. The as designed solar evaporator consisting of 5 % Bi/CoTe@CG showed an excellent water flux of 2.38 kg m-2 h-1 upon one sun radiation (1 kW m-2), considered among the highest literature-reported values. The introduced solar evaporator showed excellent solar efficiency of 96.7 %, good stability, and reusability for five cycles of one hour. The best doping ratio of Bi in CoTe was obtained as Bi0.5Co9.5Te with a contact angle of 11.9° in powder form. The hydrophilic nature of the designed solar-evaporator increased the water interaction with the embedded nano-solar evaporator, which helps the transfer of the heat to nearby water molecules, break their hydrogen bonding and increase the evaporation rate. The ion concentration, of the desalinated pure water collected using Bi/CoTe@CG, decreased by many orders of magnitude and it is far below the limit of WHO standards for Na+ and K+. Thus, a self-floating Bi-doped CoTe nano-solar evaporator deposited on cotton gauze (CG) is an excellent solar evaporator for seawater desalination. The proposed solar evaporator is another step towards introducing environmentally friendly desalination methods.
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Affiliation(s)
- Javeria Tabassum
- Department of Chemistry, School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), H-12, Islamabad 44000, Pakistan
| | - Nadeem Baig
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Manzar Sohail
- Department of Chemistry, School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), H-12, Islamabad 44000, Pakistan.
| | - Ayman Nafady
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Syed Shoaib Ahmad Shah
- Department of Chemistry, School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), H-12, Islamabad 44000, Pakistan
| | - Anwar Ul-Hamid
- Core Research Facilities, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Panagiotis Tsiakaras
- Laboratory of Alternative Energy Conversion Systems, Department of Mechanical Engineering, School of Engineering, University of Thessaly, Pedion Areos, 38834 Volos, Greece.
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3
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Tahir N, Altaf A, Baig N, Nafady A, Ul-Hamid A, Shah SSA, Tsiakaras P, Sohail M. Engineering Mn-Doped CdS Thin Films Through Chemical Bath Deposition for High-Performance Photoelectrochemical Water Splitting. Chem Asian J 2024:e202301100. [PMID: 38275189 DOI: 10.1002/asia.202301100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 01/27/2024]
Abstract
Doping conventional materials with a second element is an exciting strategy for enhancing catalytic performance via electronic structure modifications. Herein, Mn-doped CdS thin films were successfully synthesized with the aid of the chemical bath deposition (CBD) by varying the pH value (8, 10, and 12) and the surfactant amount (20, 40, 60 mg). Different morphologies like nano-cubes, nanoflakes, nano-worms, and nanosheets were obtained under different deposition conditions. The optimized Mn-doped CdS synthesized at pH=8 exhibited better photoelectrochemical (PEC) performance for oxygen evolution reaction (OER) than pure CdS films, with a maximum photocurrent density of 300 μA/cm2 at an external potential of 0.5 V, under sunlight illumination. The observed performance is attributed to the successful Mn doping, porosity, high surface area, and nanosphere morphology.
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Affiliation(s)
- Nimrah Tahir
- Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology, H-12, Islamabad, 44000, Pakistan
| | - Amna Altaf
- Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology, H-12, Islamabad, 44000, Pakistan
| | - Nadeem Baig
- Interdisciplinary Research Centre for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Ayman Nafady
- Chemistry Department, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Anwar Ul-Hamid
- Core Research Facilities, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
| | - Syed Shoaib Ahmad Shah
- Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology, H-12, Islamabad, 44000, Pakistan
| | - Panagiotis Tsiakaras
- Laboratory of Alternative Energy Conversion Systems, Department of Mechanical Engineering, School of Engineering, University of Thessaly, Pedion Areos, 38834, Volos, Greece
| | - Manzar Sohail
- Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology, H-12, Islamabad, 44000, Pakistan
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Matin A, Baig N, Anand D, Ahmad I, Sajid M, Nawaz MS. Thin-film nanocomposite membranes for efficient removal of emerging pharmaceutical organic contaminants from water. Environ Res 2023; 237:116905. [PMID: 37597831 DOI: 10.1016/j.envres.2023.116905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 08/10/2023] [Accepted: 08/15/2023] [Indexed: 08/21/2023]
Abstract
Membranes are receiving significant attention to remove emerging organic micropollutants (OMPs) from wastewater and natural water sources. Herein, we report the facile preparation of a novel thin-film nanocomposite (TFN) membrane with high permeability and efficient removal of OMPs. ZnO nanoparticles were first synthesized using the co-precipitation method and functionalized with N1-(3-Trimethoxysilylpropyl)diethylenetriamine to make the surface rich with amine groups and then synthesized nanomaterials were covalently cross-linked into the active layer during the interfacial polymerization (IP) process. The performance of the membranes containing the cross-linked ZnO was significantly better than the non-cross-linked ZnO NPs containing membranes. Adding multiple hydrophilic groups and entities on the surface significantly decreased the contact angle (from ∼60° to 20°). SEM images confirmed the uniform presence and homogeneous distribution of the functionalized NPs throughout the entire membrane surface. Zeta potential measurements showed the modified membranes have a lower negative charge than the pristine membranes. Filtration studies revealed a significant increase in permeability ascribed to the creation of nanochannels in the membrane's active layer. The modified membranes outperformed commercial NF membranes in removing four common OMPs with rejection efficiencies of ∼30%, 64%, 60%, and 70% for Sulfamethoxazole, Amitriptyline, Omeprazole, and Loperamide HCl, respectively. The higher removal efficiency was attributed to the weakened hydrophobic interactions due to the presence of hydrophilic moieties and a stronger size exclusion effect. Moreover, the modified membranes showed high resistance to bacterial adhesion in static conditions.
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Affiliation(s)
- Asif Matin
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Nadeem Baig
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia.
| | - Deepak Anand
- Department of Bioengineering, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - Irshad Ahmad
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia; Department of Bioengineering, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - Muhammad Sajid
- Applied Research Center for Environment and Marine Studies, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Muhammad Saqib Nawaz
- Water Desalination and Reuse Center, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
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Ul-Hamid A, Baig N, Haider A, Hakeem AS, Ikram M. Using biologically synthesized TiO 2 nanoparticles as potential remedy against multiple drug resistant Staphylococcus aureus of bovine mastitis. Sci Rep 2023; 13:18785. [PMID: 37914792 PMCID: PMC10620395 DOI: 10.1038/s41598-023-45762-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 10/23/2023] [Indexed: 11/03/2023] Open
Abstract
Presently, there is considerable emphasis on biological synthesis of nanoparticles containing bioactive reducing compounds with an aim to mitigate the harmful effects of pollutants. The approach under study is simple and ideal for the production of durable antimicrobial nanomaterials by novel single-step green synthesis of TiO2 metal oxide nanostructures using ginger and garlic crude aqueous extracts with bactericidal and catalytic activity. A variety of experimental techniques were used to characterize the synthesized nanomaterials. As demonstrated using x-ray diffraction and ultra-violet visible spectroscopy, the produced nanoparticles exhibited high absorption at 318 nm with size varying between 23.38 nm for ginger and 58.64 nm for garlic in biologically-reduced TiO2. At increasing concentrations (500, 1000 µg/50 µl), nanoparticles reduced with garlic exhibited enhanced bactericidal efficacy against multiple drug-resistant S. aureus and effectively decomposed toxic methylene blue (MB) dye. In conclusion, biologically-reduced TiO2 nanoparticles may prove an effective tool in the fight against microbial illnesses and drug resistance.
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Affiliation(s)
- Anwar Ul-Hamid
- Core Research Facilities, King Fahd University of Petroleum and Minerals, 31261, Dhahran, Saudi Arabia.
- Interdisciplinary Research Center for Advanced Materials, King Fahd University of Petroleum and Minerals, 31261, Dhahran, Saudi Arabia.
| | - Nadeem Baig
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, 31261, Dhahran, Saudi Arabia
| | - Ali Haider
- Department of Clinical Sciences, Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture (MNSUA), Multan, 66000, Pakistan
| | - Abbas S Hakeem
- Interdisciplinary Research Center for Hydrogen and Energy Storage, King Fahd University of Petroleum and Minerals, 31261, Dhahran, Saudi Arabia
| | - Muhammad Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University, Lahore, 54000, Pakistan
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6
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Abdulazeez I, Alrajjal AS, Ganiyu S, Baig N, Salhi B, AbdElazem S. Facile engineering of mesoporous silica for the effective removal of anionic dyes from wastewater: Insights from DFT and experimental studies. Heliyon 2023; 9:e21356. [PMID: 37920496 PMCID: PMC10618791 DOI: 10.1016/j.heliyon.2023.e21356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 10/10/2023] [Accepted: 10/19/2023] [Indexed: 11/04/2023] Open
Abstract
The discharge of dye effluents from the textile industries has become a major environmental issue due to its potential to impart serious harm to human health and aquatic life. Mesoporous silica due to its high chemical stability, large surface area, tunable morphologies, large pore volume and pore size and cost-effectiveness is commonly used to remove such dyes before recycling of the wastewater for agricultural, domestic, and industrial applications. However, the low colloidal stability, the fast aggregation of the silica particles and the slow etching of the silica surface often results in the fast deactivation of the adsorbents and limits their long-term applications. In this study, we report the functionalization of mesoporous silica (SBA-15) with ZnO nanoparticles for the effective removal of anionic dyes. The Zn-silica exhibited highly positive surface with a dipole moment of 172 Debye and high charge transfer efficacy with an energy bandgap (ΔE) of 3.35 eV as revealed by quantum chemical DFT simulations. It achieved excellent removal of Alizarin red dye reaching a removal efficiency of 99.99 % and an adsorption capacity of 50 mg/g. In the presence of heavy metal ions commonly present in wastewater (Cd2+, Co2+, Zn2+, Ni2+, Cu2+ and Hg2+), the Zn-silica maintain excellent stability, high selectivity, and reusability within 5 cycles without a significant decline in efficiency. This study thus presents an effective way of wastewater purification on cost-effective adsorbents for meeting the water scarcity demands.
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Affiliation(s)
- Ismail Abdulazeez
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Ali S. Alrajjal
- Aerospace Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Saheed Ganiyu
- Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
- Interdisciplinary Research Center for Refining and Advanced Chemicals, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Nadeem Baig
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Billel Salhi
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Sohaib AbdElazem
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
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Baig N, Khan NA, Salhi B, Abdulazeez I, Abu-Zahra N, Abdelazem S, Aljundi IH. Highly Permeable Sulfonated Polydopamine Integrated MXene Membranes for Efficient Surfactant-Stabilized Oil-in-Water Separation. Langmuir 2023; 39:13953-13967. [PMID: 37729118 DOI: 10.1021/acs.langmuir.3c01651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
MXene is an incredibly promising two-dimensional material with immense potential to serve as a high-performing separating or barrier layer to develop advanced membranes. Despite the significant progress made in MXene membranes, two major challenges still exist: (i) effectively stacking MXene nanosheets into defect-free membranes and (ii) the high fouling tendency of MXene-based membranes. To address these issues, we employed sulfonated polydopamine (SPD), which simultaneously serves as a binding agent to promote the compact assembling of Ti3C2Tx MXenes (MX) nanosheets and improves the antifouling properties of the resulting sulfonated polydopamine-functionalized MX (SPDMX) membranes. The SPDMX membrane was tested for challenging surfactant-stabilized oil-in-water separation with an impressive efficiency of 98%. Moreover, an ultrahigh permeability of 1620 LMH/bar was also achieved. The sulfonation of PD helps in improving the antifouling characteristics of SPDMX by developing a strong hydration layer and enhancing the oleophobicity of the membrane. The underwater SPDMX membrane appeared superoleophobic with an oil contact angle of 153°, whereas the ceramic membrane exhibited an oil contact angle of 137°. The SPDMX membranes showed an improved flux recovery (31%) compared to the nonsulfonated counterpart. This work highlights the appropriate functionalization of MXene as a promising approach to developing MXene membranes with high permeation flux and better antifouling characteristics for oily wastewater treatment.
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Affiliation(s)
- Nadeem Baig
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Niaz Ali Khan
- Key Laboratory of Textile Fiber and Products Ministry of Education, Wuhan Textile University, Wuhan 430200, China
| | - Billel Salhi
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Ismail Abdulazeez
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Nidal Abu-Zahra
- Department of Materials Science & Engineering College of Engineering and Applied Sciences, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53211, United States
| | - Sohaib Abdelazem
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Isam H Aljundi
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
- Chemical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
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Arshad Z, Salhi B, Baig N, Aljundi IH, Ali SA. Fabrication of a New Rationally Designed Mussel-Inspired Cationic Amphiphilic Terpolymer to Enhance the Separation and Anti-Fouling Performance of Membranes. Langmuir 2023. [PMID: 37352510 DOI: 10.1021/acs.langmuir.3c00988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/25/2023]
Abstract
Polyvinylidene fluoride (PVDF) membrane-based systems for treating oily wastewater are prone to fouling. Herein, we introduced a novel mussel-inspired cationic amphiphilic terpolymer consisting of monomers N,N-diallyldimethylammonium chloride (DADMAC), N,N-diallyltetradecan-1-ammonium chloride (DTDAC), and mussel-inspired N,N-diallyldopamine hydrochloride (DADAHC) to improve the performance and characteristics of the PVDF membranes for oil-in-water emulsion separations. The cationic terpolymer, poly(DADMAC-co-DTDAC-co-DADAHC), shortened as PDDD, was synthesized in excellent yields via free radical polymerization and has good compatibility with the PVDF owing to the presence of hydrophobic long alkyl chains in DTDAC. The presence of dopamine motifs helps stabilize the PDDD-PVDF membrane by chelating with Fe3+ ions. The water contact angle on the PDDD-incorporated PVDF membranes was reduced from 87.6 to 54.6°, demonstrating improved hydrophilicity than pristine PVDF (M-0). The incorporation of PDDD into the PVDF improved the separation efficiencies of the membrane, which reached up to 99% while treating the oil-in-water emulsions. Incorporating PDDD into PVDF has significantly enhanced the anti-fouling characteristics of the membranes, which are indicated by their remarkable flux recovery ratio (FRR) (up to 92%). The hydrophobic and hydrophilic groups worked synergetically to enhance the performance of the fabricated membrane.
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Affiliation(s)
- Zeeshan Arshad
- Chemistry Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Billel Salhi
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Nadeem Baig
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Isam H Aljundi
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
- Chemical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Shaikh A Ali
- Chemistry Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
- Interdisciplinary Research Center for Advanced Materials, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
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Akhtar N, Aslam Z, Shawabkeh RA, Baig N, Aslam U, Ihsanullah I, Khan S. Decolorization of multicomponent dye-laden wastewater by modified waste fly ash: a parametric analysis for an anionic and cationic combination of dyes. Environ Sci Pollut Res Int 2023:10.1007/s11356-023-27671-1. [PMID: 37249783 DOI: 10.1007/s11356-023-27671-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 05/11/2023] [Indexed: 05/31/2023]
Abstract
In this research study, waste fly ash (WFA) underwent acid activation and subsequent amine functionalization using ammonia solution. This treatment improves the porosity, thermal tendency and crystallinity of WFA. Modified WFA was tested under different experimental conditions to treat the wastewater consisting of different concentrations of cationic (methylene blue and rhodamine 6G) and anionic (methyl orange) dyes. As an individual, methylene blue (MB) and rhodamine 6G (Rh) showed ~ 100% and ~ 82% removal efficiencies respectively in an alkaline medium while methyl orange (MO) exhibited only ~ 20% adsorption in the same medium. An antagonistic effect was observed in adsorption when wastewater contains both cationic dyes whereas the combination of cationic and anionic dyes in solution manifested a synergistic effect. For all individual and binary dye combinations, there is a close agreement in observed and calculated uptakes when the data was fitted to the fractional order kinetic rate equation. The adsorption of all dyes is spontaneous and endothermic in nature except for MB/MO combination where the process is exothermic in nature. 24.93 mg/g, 24.83 mg/g, and 14.95 mg/g monolayer uptake capacities of MB, Rh, and MO were found respectively from isothermal analysis of single dye adsorption data. Further, extended sips model gave higher correlation coefficient (R2 = 0.99) and addressed the failed assumptions of both the Langmuir and Freundlich models. Overall, in the experimental results, the modified waste fly ash could act as successful adsorbent to treat dye bearing wastewater.
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Affiliation(s)
- Namrah Akhtar
- Department of Chemical Engineering, University of Engineering and Technology, Lahore, 54890, Pakistan
| | - Zaheer Aslam
- Department of Chemical Engineering, University of Engineering and Technology, Lahore, 54890, Pakistan.
| | - Reyad A Shawabkeh
- Department of Chemical Engineering, University of Jordan, Amman, 11942, Jordan
| | - Nadeem Baig
- Interdisciplinary Research Centre for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
| | - Umair Aslam
- Department of Chemical Engineering, University of Engineering and Technology, Lahore, 54890, Pakistan
| | - Ihsanullah Ihsanullah
- Chemical and Water Desalination Engineering Program, College of Engineering, University of Sharjah, 27272, Sharjah, United Arab Emirates
| | - Salahuddin Khan
- Department of Chemical Engineering, University of Engineering and Technology, Lahore, 54890, Pakistan
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Baig N, Kammakakam I. Special wettable Azadirachta indica leaves like microarchitecture mesh filtration membrane produced by galvanic replacement reaction for layered oil/water separation. Chemosphere 2023; 313:137544. [PMID: 36528151 DOI: 10.1016/j.chemosphere.2022.137544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 11/28/2022] [Accepted: 12/11/2022] [Indexed: 06/17/2023]
Abstract
The oil/water separation has received significant attention due to its critical environmental impact. The special wettable surfaces are highly desired to deal with the oil/water mixtures. This work demonstrates a simple two-step method to develop a superhydrophobic Azadirachta indica leaves like Ag-decorated electrochemically copper-coated stainless-steel mesh (SH-AIL-Ag-EC-Cu-Mesh) for efficient separation of oil/water mixtures. In the first step, the electrodeposition of the copper took place on the mesh surface at a suitable applied potential. In the second step, the galvanic replacement reaction between the Ag+ and electrodeposited Cu produced the fascinating superhydrophobic Ag leaves on the mesh surface. The SH-AIL-Ag-EC-Cu-Mesh was thoroughly characterized by the X-ray photoelectron spectroscopy (XPS), Energy Dispersive X-Ray Spectroscopy (EDX), elemental mapping, surface wettability analysis, and the contact analyzer. The morphological analysis has shown the unique leafy structures of the reduced Ag on the surface of the mesh. The XPS analysis has confirmed that most of the Ag present on the surface is in zerovalent form. The combination of the electrodeposition and the displacement reaction between the copper and the silver turned the surface superhydrophobic, and the water contact angle was significantly improved from 115° to 158°. The designed SH-AIL-Ag-EC-Cu-Mesh has shown excellent selectivity for oil in oil/water mixtures with a separation efficiency of 99.1% with an exceptionally high flux of 8963 L m-2h-1. The SH-AIL-Ag-EC-Cu-Mesh has shown excellent reusability, and after 15 cycles of separation, no significant decrease in the oil/water separation efficiency was observed.
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Affiliation(s)
- Nadeem Baig
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia.
| | - Irshad Kammakakam
- Department of Chemical & Biological Engineering, University of Alabama, Tuscaloosa, AL, 35487-0203, USA.
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11
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Sajid M, Ihsanullah I, Tariq Khan M, Baig N. Nanomaterials-based adsorbents for remediation of microplastics and nanoplastics in aqueous media: A review. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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12
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Baig N, Alowaid AM, Abdulazeez I, Salhi B, Sajid M, Kammakakam I. Designing of nanotextured inorganic-organic hybrid PVDF membrane for efficient separation of the oil-in-water emulsions. Chemosphere 2022; 308:136531. [PMID: 36150483 DOI: 10.1016/j.chemosphere.2022.136531] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 09/01/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
The separation of the emulsified oil/water is one of the critical environmental challenges. The PVDF membranes have been found helpful for separation, but rapid fouling makes them less attractive in treating oil-in-water emulsions. The design of antifouling membranes has become an area of deep interest. Herein, developing a novel modified PVDF ultrafiltration membrane was reported by doping the pyrrole and solidifying it in a ferric-containing coagulation bath, resulting in a unique nanotextured PVDF membrane (CCB-Fe/PPnp-PVDF) to separate the oil/water emulsions. The resultant CCB-Fe/PPnp-PVDF membrane was thoroughly characterized using the FTIR, FE-SEM, EDX, mapping, AFM, and contact analyzer. The hydrophilicity of the CCB-Fe/PPnp-PVDF was substantially improved, and the water contact angle was reduced from 81֯ ± 0.9֯ to 44֯ ± 1.7֯. The CCB-Fe/PPnp-PVDF membrane flux increased by 121% compared to the pristine PVDF membrane, with high separation efficiency of 99%. The hydrophilic nanotextured surface of the CCB-Fe/PPnp-PVDF membrane showed good antifouling behavior, with a flux recovery ratio (FRR) of more than 96%. Irreversible flux was just less than 4%. The high flux recovery ratio indicated that the nanotextured surface produced by the Fe/PPnp had prevented the blockage of the membrane pores and compact cake layer formation, which makes it an excellent membrane for oil/water emulsion separation. This strategy can be adopted for designing advanced membranes for separation applications.
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Affiliation(s)
- Nadeem Baig
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia.
| | - Abdulaziz Mohammed Alowaid
- Chemical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Ismail Abdulazeez
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Billel Salhi
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Muhammad Sajid
- Center for Environment and Water, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Irshad Kammakakam
- Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia.
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13
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Abdulazeez I, Baig N, Salhi B, Aljundi IH. Electrochemical behavior of novel electroactive LaTi4Mn3O12/polyaniline composite for Li+-ion recovery from brine with high selectivity. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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14
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Zeb W, Altaf A, Aamir M, Baig N, Baig I, Nafady A, Sharif M, Sher M, Sohail M. Enhanced photoelectrochemical performance of P-doped g‑C3N4/Zn0.5Cd0.5S heterojunction photocathode for water splitting. Journal of Saudi Chemical Society 2022. [DOI: 10.1016/j.jscs.2022.101542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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15
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Altaf A, Hassan S, Pejcic B, Baig N, Hussain Z, Sohail M. Recent progress in the design, synthesis and applications of chiral metal-organic frameworks. Front Chem 2022; 10:1014248. [PMID: 36277340 PMCID: PMC9581262 DOI: 10.3389/fchem.2022.1014248] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 09/16/2022] [Indexed: 11/13/2022] Open
Abstract
Chiral Metal-Organic Frameworks (CMOFs) are unique crystalline and porous class of materials which is composed of organic linkers and metal ions. CMOFs surpass traditional organic and inorganic porous materials because of their tunable shape, size, functional diversity, and selectivity. Specific applications of CMOFs may be exploited by introducing desired functional groups. CMOFs have chiral recognition abilities, making them unique for chiral compound synthesis and separation. The CMOFs can be synthesized through different approaches. Two main approaches have been discussed, i.e., direct and indirect synthesis. Synthetic strategies play an essential role in getting desired properties in MOFs. CMOFs find potential applications in adsorption, asymmetric catalysis, luminescence, degradation, and enantioselective separation. The MOFs’ porosity, stability, and reusability make them an attractive material for these applications. The plethora of applications of CMOFs have motivated chemists to synthesize novel MOFs and number of MOFs have been ever-escalating. Herein, the synthetic methods of CMOFs and their various applications have been discussed.
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Affiliation(s)
- Amna Altaf
- Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology, Islamabad, Pakistan
| | - Sadia Hassan
- Department of Biomedical Engineering and Sciences, School of Mechanical and Manufacturing Engineering, National University of Sciences and Technology, Islamabad, Pakistan
| | - Bobby Pejcic
- CSIRO Mineral Resources, Australian Resources Research Centre, Kensington, CA, Australia
| | - Nadeem Baig
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
| | - Zakir Hussain
- Department of Materials Engineering, School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad, Pakistan
| | - Manzar Sohail
- Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology, Islamabad, Pakistan
- *Correspondence: Manzar Sohail,
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16
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Ali S, Mansha M, Baig N, Khan SA. Cost-Effective and Selective Fluorescent Chemosensor (Pyr-NH@SiO2 NPs) for Mercury Detection in Seawater. Nanomaterials 2022; 12:nano12081249. [PMID: 35457957 PMCID: PMC9024866 DOI: 10.3390/nano12081249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/29/2022] [Accepted: 04/02/2022] [Indexed: 11/23/2022]
Abstract
The release of mercury into the environment has adverse effects on humans and aquatic species, even at very low concentrations. Pyrene and its derivatives have interesting fluorescence properties that can be utilized for mercury (Hg2+) ion sensing. Herein, we reported the highly selective pyrene-functionalized silica nanoparticles (Pyr-NH@SiO2 NPs) for chemosensing mercury (Hg2+) ions in a seawater sample. The Pyr-NH@SiO2 NPs were synthesized via a two-step protocol. First, a modified Stöber method was adopted to generate amino-functionalized silica nanoparticles (NH2@SiO2 NPs). Second, 1-pyrenecarboxylic acid was coupled to NH2@SiO2 NPs using a peptide coupling reaction. As-synthesized NH2@SiO2 NPs and Pyr-NH@SiO2 NPs were thoroughly investigated by 1H-NMR, FTIR, XRD, FESEM, EDS, TGA, and BET surface area analysis. The fluorescent properties were examined in deionized water under UV-light illumination. Finally, the developed Pyr-NH@SiO2 NPs were tested as a chemosensor for Hg2+ ions detection in a broad concentration range (0–50 ppm) via photoluminescence (PL) spectroscopy. The chemosensor can selectively detect Hg2+ ions in the presence of ubiquitous ions (Na+, K+, Ca2+, Mg2+, Ba2+, Ag+, and seawater samples). The quenching of fluorescence properties with Hg2+ ions (LOD: 10 ppb) indicates that Pyr-NH@SiO2 NPs can be effectively utilized as a promising chemosensor for mercury ion detection in seawater environments.
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Affiliation(s)
- Shahid Ali
- Center of Research Excellence in Nanotechnology, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia;
- Interdisciplinary Research Center for Hydrogen and Energy Storage, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia;
| | - Muhammad Mansha
- Interdisciplinary Research Center for Hydrogen and Energy Storage, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia;
| | - Nadeem Baig
- Interdisciplinary Research Centre for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia;
| | - Safyan Akram Khan
- Center of Research Excellence in Nanotechnology, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia;
- Interdisciplinary Research Center for Hydrogen and Energy Storage, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia;
- Correspondence: ; Tel.: +966-13-860-7261
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17
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Ali S, Mansha M, Baig N, Khan SA. Recent Trends and Future Perspectives of Emergent Analytical Techniques for Mercury Sensing in Aquatic Environments. CHEM REC 2022; 22:e202100327. [PMID: 35253977 DOI: 10.1002/tcr.202100327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 01/29/2022] [Accepted: 02/22/2022] [Indexed: 11/10/2022]
Abstract
Environmental emissions of mercury from industrial waste and natural sources, even in trace amounts, are toxic to organisms and ecosystems. However, industrial-scale mercury detection is limited by the high cost, low sensitivity/specificity, and poor selectivity of the available analytical tools. This review summarizes the key sensors for mercury detection in aqueous environments: colorimetric-, electrochemical-, fluorescence-, and surface-enhanced Raman spectroscopy-based sensors reported between 2014-2021. It then compares the performances of these sensors in the determination of inorganic mercury (Hg2+ ) and methyl mercury (CH3 Hg+ ) species in aqueous samples. Mercury sensors for aquatic applications still face serious challenges in terms of difficult deployment in remote areas and low robustness, reliability, and selectivity in harsh environments. We provide future perspectives on the selective detection of organomercury species, which are especially toxic and reactive in aquatic environments. This review is intended as a valuable resource for scientists in the field of mercury sensing.
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Affiliation(s)
- Shahid Ali
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
| | - Muhammad Mansha
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
| | - Nadeem Baig
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum & Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
| | - Safyan Akram Khan
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
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18
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Baig N, Salhi B, Sajid M, Aljundi IH. Recent Progress in Microfiltration/Ultrafiltration Membranes for Separation of Oil and Water Emulsions. CHEM REC 2022; 22:e202100320. [PMID: 35189025 DOI: 10.1002/tcr.202100320] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 02/08/2022] [Indexed: 01/18/2023]
Abstract
Oily wastewater has become one of the leading causes of environmental pollution. A massive quantity of oily wastewater is released from industries, oil spills, and routine activities, endangering the ecosystem's sustainability. Due to the enormous negative impact, researchers put strenuous efforts into developing a sustainable solution to treat oily wastewater. Microfiltration/ultrafiltration membranes are considered an efficient solution to treat oily wastewater due to their low cost, small footprint, facile operation, and high separation efficiencies. However, membranes severely fouled during the separation process due to oil's adsorption and cake layer formation, which shortens the membranes' life. This review has critically discussed the microfiltration/ultrafiltration membrane synthesizing methods and their emulsion's separation performance. In the end, key challenges and their possible solutions are highlighted to provide future direction to synthesize next-generation membranes.
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Affiliation(s)
- Nadeem Baig
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Billel Salhi
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Muhammad Sajid
- Center for Environment and Water, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Isam H Aljundi
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia.,Chemical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
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19
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Baig N, Kawde AN, Elgamouz A, Morsy M, Abdelfattah AM, Othaman R. Graphene nanosheet-sandwiched platinum nanoparticles deposited on a graphite pencil electrode as an ultrasensitive sensor for dopamine. RSC Adv 2022; 12:2057-2067. [PMID: 35425276 PMCID: PMC8979215 DOI: 10.1039/d1ra08464j] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 12/30/2021] [Indexed: 01/22/2023] Open
Abstract
An ultra-sensitive sensor of dopamine is introduced. The sensor is constructed by encapsulating platinum nanoparticles (PtNPs) between reduced graphene oxide (GR) nanosheets. The sandwiched PtNPs between GR layers acted as a spacer to prevent aggregation and provided a fine connection between the GR nanosheets to provide fast charge transfer. This specific orientation of the GR nanosheets and PtNPs on the graphite pencil electrode (GPE) substantially improved the electrocatalytic activity of the sensor. The synthesized graphene oxide and the fabricated sensor were comprehensively characterized by Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, field emission-scanning electron microscopy (FE-SEM), electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and square wave voltammetry (SWV). The value of the charge transfer coefficient (α), apparent heterogeneous electron transfer rate constant (ks), and electroactive surface area for dopamine were found to be about 0.57, 8.99 s−1, and 0.81 cm2, respectively. The developed sensor is highly sensitive towards dopamine, and the detection limit is 9.0 nM. The sensor response is linear for dopamine concentration from 0.06 to 20 μM (R2 = 0.9991). The behavior of the sensor for dopamine in the presence of a high concentration of l(+) Ascorbic acid and other potential interferents was satisfactory. High recovery percentage between 90% and 105% in the human urine sample, good reproducibility, and facile fabrication of the electrode make it a good candidate for dopamine sensing. An efficient, highly sensitive, and selective electrochemical sensor using PtNPs sandwiched graphene layered modified graphite pencil electrode.![]()
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Affiliation(s)
- Nadeem Baig
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia
| | - Abdel-Nasser Kawde
- Department of Chemistry, College of Sciences, University of Sharjah P. O. Box 27272 United Arab Emirates
| | - Abdelaziz Elgamouz
- Department of Chemistry, College of Sciences, University of Sharjah P. O. Box 27272 United Arab Emirates
| | - Mohamed Morsy
- Chemistry Department, King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia
| | - Ahmed Mohsen Abdelfattah
- Department of Architecture, King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia
| | - Rizafizah Othaman
- Polymer Research Center, Faculty of Science and Technology, Universiti Kebangsaan Malaysia Bangi Selangor 43600 Malaysia
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20
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Sajid M, Sajid Jillani SM, Baig N, Alhooshani K. Layered double hydroxide-modified membranes for water treatment: Recent advances and prospects. Chemosphere 2022; 287:132140. [PMID: 34523432 DOI: 10.1016/j.chemosphere.2021.132140] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 08/28/2021] [Accepted: 08/31/2021] [Indexed: 06/13/2023]
Abstract
Layered double hydroxides (LDHs) represent an exciting class of two-dimensional inorganic materials with unique physicochemical properties. They have been widely employed in water treatment due to their high surface areas, excellent ion exchange capacities, and highly tunable structures. They have also been employed in the fabrication and development of membranes for water treatment. 2D nanostructures as well as tailorable "structure forming units", surface functionalization with desired moieties, and interlayer galleries with adjustable heights and internal compositions make them attractive materials for membrane separations. This paper critically overviews the recent advancements in the synthesis and applications of LDH based membranes in water purification. The synthesis techniques and the effect of LDH incorporation into different membrane compositions have been described. LDH-based membranes showed excellent antifouling capability and improved water flux due to enhanced hydrophilicity. Such membranes have been successfully used for the treatment of inorganics, organics from environmental water samples. This review will be useful for understanding the current state of the LDH-based membranes for water purification and defining future research dimensions. In the end, we highlight some challenges and future prospects for the efficient application of LDH-based membranes in water decontamination.
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Affiliation(s)
- Muhammad Sajid
- Center for Environment and Water, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia.
| | - Shehzada Muhammad Sajid Jillani
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Nadeem Baig
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia.
| | - Khalid Alhooshani
- Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
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21
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Abdulazeez I, Salhi B, Baig N, Peng Q. The Role of Sulphonic and Phosphoric Pendant Groups on the Diffusion of Monovalent Ions in Polyelectrolyte Membranes: A Molecular Dynamics Study. Membranes (Basel) 2021; 11:940. [PMID: 34940441 PMCID: PMC8703909 DOI: 10.3390/membranes11120940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 11/23/2021] [Accepted: 11/26/2021] [Indexed: 11/16/2022]
Abstract
Lithium-ion consumption has risen significantly in recent years due to its use in portable devices. Alternative sources of lithium, which include the recovery from brine using the sustainable and eco-friendly electrodialysis technology, has been explored. This technology, however, requires effective cation-exchange membranes that allow the selective permeation of lithium ions. In this study, we have investigated, via molecular dynamics simulations, the role of the two common charged groups, the sulfonic and the phosphoric groups, in promoting the adsorption of monovalent ions from brine comprising Li+, Na+, Mg2+, and Ca2+ ions. The analysis of the mean square displacement of the ions revealed that Li+ and Na+ ions exhibit superior diffusion behaviors within the polyelectrolyte system. The O-atoms of the charged groups bind strongly with the divalent ions (Mg2+ and Ca2+), which raises their diffusion energy barrier and consequently lowers their rate of permeation. In contrast, the monovalent ions exhibit weaker interactions, with Na+ being slightly above Li+, enabling the permeation of Li+ ions. The present study demonstrates the role of both charged groups in cation-exchange membranes in promoting the diffusion of Li+ and Na+ ions, and could serve as a guide for the design of effective membranes for the recovery of these ions from brine.
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Affiliation(s)
- Ismail Abdulazeez
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia; (B.S.); (N.B.)
| | - Billel Salhi
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia; (B.S.); (N.B.)
| | - Nadeem Baig
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia; (B.S.); (N.B.)
| | - Qing Peng
- Physics Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
- KACARE Energy Research and Innovation Center at Dhahran, Dhahran 31261, Saudi Arabia
- Hydrogen and Energy Storage Center, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
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22
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Baig N, Ferrari M, Lukaszewicz A. 159 The Need Of Six Monthly Follow Up X-Rays Post Total Knee Replacement(TKR). Br J Surg 2021. [DOI: 10.1093/bjs/znab259.972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Background
There is a longstanding culture of repeat x-rays after total knee replacement (TKR) as part of follow up, often combined with a clinic review. This is to check that the prosthesis is in a satisfactory position. There are inherently a number of issues with this historic approach including exposure of patients to further radiation who may be asymptomatic, time delays in busy clinics or x-ray departments and costs.
Objectives
The aim of this audit was to assess whether follow up plain films after TKR are methodically undertaken and of benefit to confirm satisfactory appearance if immediate post -operative x-rays were unremarkable. The findings of a six month follow up x-ray was specifically evaluated. The secondary aim was to establish the timing of further follow up x-rays within the department.
Method
200 patients were included within the analysis, they all received a TKR at a major trauma centre, over a one-year period between December 2017 and December 2018.
Results
It was found that 100% of those patients having a post-operative film had a satisfactory appearance. 78% of patients had at least one further follow op x-ray of which 99.4% were satisfactory. Up to five follow up x-rays were taken with 53.5% of patients having a follow up x-ray at 6 months.
Conclusions
From the above results there is minimal, if any, evidence within the data set to support routine, additional follow up imaging if initial post-operative films are satisfactory, and the patient is asymptomatic.
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Affiliation(s)
- N Baig
- Southampton General Hospital, Southampton, United Kingdom
| | - M Ferrari
- Bristol Royal Infirmary, Bristol, United Kingdom
- Southampton General Hospital, Southampton, United Kingdom
| | - A Lukaszewicz
- Cardiff Hospital, Cardiff, United Kingdom
- Southampton General Hospital, Southampton, United Kingdom
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23
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Baig N, Nasim-Mohi M, Lukaszewicz A. 502 Benefits of Rivaroxaban over Enoxaparin in Trauma and Orthopaedics. Br J Surg 2021. [DOI: 10.1093/bjs/znab259.993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Aim
Our Aim was to show what the benefits of Rivaroxaban over Enoxaparin post-operatively in trauma and orthopaedics. Doing a meta-analysis of previous studies and comparing post-op thrombotic risk in both rivaroxaban and Enoxaparin. To compare costs of using Enoxaparin vs Rivaroxaban in the major trauma centre.
Method
Meta-analysis of four studies conducted;Lassen 2008, Turpie 2005, Turpie 2009, Xie 2017 and Zou 2014. Gathered data from the British national formulary about Rivaroxaban cost and enoxaparin cost.
Results
This illustrated that rivaroxaban after TKA(Total knee Arthroplasty) had a significantly lower rate of symptomatic VTE, symptomatic DVT, asymptomatic DVT, distal DVT, and proximal DVT (shown in figure 1). The study shows that rivaroxaban after TKA is more effective than enoxaparin and did not increase major bleeding or cause increased mortality Major venous thromboembolism occurred in 9 of 908 patients (1.0%) given rivaroxaban and 24 of 925 (2.6%) given enoxaparin in a study done by Lassen et al Rivaroxaban requires less training for the patient, enoxaparin requires the patient to be taught proper administration. Rivaroxaban is considerably cheaper compared to enoxaparin. Enoxaparin provided by both Inhixa and Clexane cost £30.27 for a batch of 10 pre-filled disposable injections of 40mg, whilst rivaroxaban costs £18 for 10 tablets of the dose 10mg.
Conclusions
Rivaroxaban is cheaper to use for post-op anticoagulation, less resource intensive as patient is not required to be taught optimal administration method. Rivaroxaban has significantly reduced occurrence of thrombus compared to that of enoxaparin (based of the meta-analysis).
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Affiliation(s)
- N Baig
- Southampton General Hospital, Southampton, United Kingdom
| | - M Nasim-Mohi
- Southampton General Hospital, Southampton, United Kingdom
| | - A Lukaszewicz
- Cardiff Hospital, Cardiff, United Kingdom
- Southampton General Hospital, Southampton, United Kingdom
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24
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Baig N, Kammakakam I. Removal of Oily Contaminants from Water by Using the Hydrophobic Ag Nanoparticles Incorporated Dopamine Modified Cellulose Foam. Polymers (Basel) 2021; 13:polym13183163. [PMID: 34578068 PMCID: PMC8471367 DOI: 10.3390/polym13183163] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 11/16/2022] Open
Abstract
The presence of oil-related contaminants in water has emerged as a severe threat to the environment. The separation of these contaminants from water has become a great challenge, and extensive efforts are being made to develop suitable, environmentally friendly materials. Highly hydrophobic materials are effective in the selective separation of oil from water. In this work, silver (Ag)-incorporated, highly hydrophobic dopamine-modified cellulose sponge was prepared by functionalizing with the range of alkyl silanes. The Ag nanoparticle-incorporated dopamine provided the appropriate roughness, whereas the alkyl component provided the low surface energy that made it selective towards oil. It was found that the alkyl groups with a longer chain length were more effective in enhancing the hydrophobicity of the Ag nanoparticle-incorporated, dopamine-modified cellulose. The developed materials were characterized by Fourier transform infrared spectroscopy (FTIR), field emission-scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), elemental mapping, and contact angle goniometry. The maximum water contact angle on the functionalized surfaces was observed at 148.4°. The surface of the C18s-Ag-DA-Cell-F showed excellent selectivity towards the oily component that rapidly permeated, and water was rejected wholly. The developed material showed a separation efficiency of 96.2% for the oil/water mixture. The C18s-Ag-DA-Cell-F material showed excellent reusability. Due to their environmentally friendly nature, excellent selectivity, and good separation efficiency, the functionalized cellulose materials can be used to separate oil and water effectively.
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Affiliation(s)
- Nadeem Baig
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
- Correspondence: or (N.B.); or (I.K.)
| | - Irshad Kammakakam
- Department of Chemical & Biological Engineering, University of Alabama, Tuscaloosa, AL 35487-0203, USA
- Correspondence: or (N.B.); or (I.K.)
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25
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Naz G, Asghar H, Ramzan M, Arshad M, Ahmed R, Tahir MB, Haq BU, Baig N, Jalil J. High-yield synthesis of silver nanowires for transparent conducting PET films. Beilstein J Nanotechnol 2021; 12:624-632. [PMID: 34285865 PMCID: PMC8261274 DOI: 10.3762/bjnano.12.51] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 06/16/2021] [Indexed: 06/13/2023]
Abstract
Silver nanowires (AgNWs) with ultrahigh purity and high yield were successfully synthesized by employing a modified facile polyol method using PVP as a capping and stabilizing agent. The reaction was carried out at a moderate temperature of 160 °C under mild stirring for about 3 h. The prepared AgNWs exhibited parallel alignment on a large scale and were characterized by UV-vis spectroscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD), and PL spectroscopy. The luminescent AgNWs exhibited red emission, which was accredited to deep holes. The SEM results confirmed the formation of AgNWs of 3.3 to 4.7 µm in length with an average diameter of about 86 nm, that is, the aspect ratio values of the AgNWs exceeded 45. An ink consisting of hydroxyethyl cellulose (HEC) and AgNWs was transferred to polyethylene terephthalate (PET) films by simple mechanical pressing. The PET films retained transparency and flexibility after the ink coating. The maximum transmittance value of as-prepared PET films in the visible region was estimated to be about 92.5% with a sheet resistance value of ca. 20 Ω/sq. This makes the films a potential substitute to commonly used expensive indium tin oxide (ITO) in the field of flexible optoelectronics.
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Affiliation(s)
- Gul Naz
- Institute of Physics, Faculty of Science, The Islamia University of Bahawalpur, Baghdad-ul-Jadid Campus, Bahawalpur 63100, Pakistan
| | - Hafsa Asghar
- Institute of Physics, Faculty of Science, The Islamia University of Bahawalpur, Baghdad-ul-Jadid Campus, Bahawalpur 63100, Pakistan
| | - Muhammad Ramzan
- Institute of Physics, Faculty of Science, The Islamia University of Bahawalpur, Baghdad-ul-Jadid Campus, Bahawalpur 63100, Pakistan
| | - Muhammad Arshad
- Nanosciences and Nanotechnology Department, National Centre for Physics, Quaid-i-Azam University Islamabad, Pakistan
| | - Rashid Ahmed
- Centre for High Energy Physics, The University of Punjab, Lahore, Pakistan
| | - Muhammad Bilal Tahir
- Department of Physics, Khawaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Pakistan
| | - Bakhtiar Ul Haq
- Advanced Functional Materials & Optoelectronics Laboratory (AFMOL), Department of Physics, Faculty of Science, King Khalid University, Abha 9004, Saudi Arabia
| | - Nadeem Baig
- Center of Research Excellent in Desalination & Water Treatment, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Junaid Jalil
- Institute of Physics, Faculty of Science, The Islamia University of Bahawalpur, Baghdad-ul-Jadid Campus, Bahawalpur 63100, Pakistan
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26
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Waheed A, Baig N, Ullah N, Falath W. Removal of hazardous dyes, toxic metal ions and organic pollutants from wastewater by using porous hyper-cross-linked polymeric materials: A review of recent advances. J Environ Manage 2021; 287:112360. [PMID: 33752053 DOI: 10.1016/j.jenvman.2021.112360] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 02/14/2021] [Accepted: 03/09/2021] [Indexed: 06/12/2023]
Abstract
Water quality plays a central role in the well-being of all the living organisms on planet Earth. The ever-increasing human population and consequently increasing industrialization, urbanization, and chemically boosted cultivation are rapidly contaminating already stressed water resources. The availability of clean drinking water has become scarce for masses across the globe, and this situation is becoming alarming in developing countries. Therefore, the immediate need for cost-effective, easily accessible, eco-friendly, portable, thermally efficient, and chemically stable technologies and materials is desperately felt to meet the high global demand for clean water. To search for effective materials for wastewater treatment, the hyper-cross-linked porous polymers (HCPs) have emerged as an excellent class of porous materials for wastewater treatment due to their unique features of high surface area, tunability, biodegradability, and chemical versatility. This review describes the advances in fabrication strategies and the efficient utilization of hyper-cross-linked porous polymers for wastewater treatment. Moreover, this review specifically discusses the hyper-cross-linked porous polymers effectiveness for the separation of the dyes, nutrients, inorganic ions, organic contaminants, and toxic metals ions. Finally, the review provides insight into the challenges and prospects in the area of hyper-cross-linked porous polymers. Overall, the hyper-cross-linked porous polymers with empowering proper functionalization can provide an opportunity for the wastewater treatment not only to remove toxic contaminants but also to make contaminated water useful for various applications.
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Affiliation(s)
- Abdul Waheed
- Center of Research Excellence in Desalination & Water Treatment, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia; Interdisciplinary Research Center for Membranes and Water Security.
| | - Nadeem Baig
- Center of Research Excellence in Desalination & Water Treatment, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia; Interdisciplinary Research Center for Membranes and Water Security.
| | - Nisar Ullah
- Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
| | - Wail Falath
- Center of Research Excellence in Desalination & Water Treatment, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia; Department of Mechanical Engineering, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia.
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27
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Butt AS, Baig N, Khan M, Ul‐Hamid A, Sher M, Altaf M, Sohail M. HfO
2
‐CoO nanoparticles for electrochemical dopamine sensing. Electrochemical Science Adv 2021. [DOI: 10.1002/elsa.202100013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Abdul Samad Butt
- Department of Chemistry, School of Natural Sciences National University of Sciences and Technology Islamabad Pakistan
| | - Nadeem Baig
- Interdisciplinary Research Center for Membranes and Water Security King Fahd University of Petroleum and Minerals Dhahran Saudi Arabia
| | - Munezza Khan
- School of Materials Sciences & Engineering Nanyang Technological University Singapore Singapore
| | - Anwar Ul‐Hamid
- Core Research Facilities King Fahd University of Petroleum and Minerals Dhahran Saudi Arabia
| | - Muhammad Sher
- Department of Chemistry Allama Iqbal Open University Islamabad Pakistan
| | - Muhammad Altaf
- Department of Chemistry Government College University Lahore Pakistan
| | - Manzar Sohail
- Department of Chemistry, School of Natural Sciences National University of Sciences and Technology Islamabad Pakistan
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28
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Baig N, Saleh TA. Photochemically Produced Superhydrophobic Silane@polystyrene-Coated Polypropylene Fibrous Network for Oil/Water Separation. Chem Asian J 2021; 16:329-341. [PMID: 33453081 DOI: 10.1002/asia.202001368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/28/2020] [Indexed: 12/16/2022]
Abstract
Cost-effective separation of oil and immiscible organic contaminants from water has become an urgent challenge to protect aquatic and human life from devastating effects. Therefore, it has become imperative to develop super-selective materials for efficiently separating oil from water. In this work, a superhydrophobic surface has been formed that consists of a silane@polystyrene-coated polypropylene fibrous network (silane@PS-PPF) for efficient separation of accidentally spilled oil from water. The superhydrophobic PPFs were designed by a simple, cost-effective two-step process that includes photochemically controlled polymerization of styrene and subsequent dip coating in octadecyltrichlorosilane solution. The hydrophobic surface (CA=129°±4°) of the PS coated PPF after treating with silane was turned into a superhydrophobic body (CA=161°±2°). The achieved silane@PS-PPF fibrous network selectively allowed the fast permeation of the oils and non-polar organic liquids by altogether rejecting water during operation. The separation efficiency for various oils from the contaminated water was 96 to 99%, with a high flux in the range of 7606±312 L m-2 h-1 to 9870±151 L m-2 h-1 . Apart from being used as a filter, the silane@PS-PPF was also used as an oil absorber and has shown an absorption capacity in the range of 1185 to 1535% for various oils. We anticipate that the developed silane@PS-PPF, due to its facile synthetic route, cost-effectiveness, and high performance, can be effectively used in oily wastewater treatment and clean-up of large oil spills from water.
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Affiliation(s)
- Nadeem Baig
- Center of Research Excellence in Desalination & Water Treatment, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia.,Center for Environment and Water, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Tawfik A Saleh
- Chemistry Department, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
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29
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Dobrusin A, Hawa F, Gladshteyn M, Corsello P, Harlen K, Walsh CX, Alaparthi L, Weinstein M, Baig N, Sousa A, Gunaratnam NT. Gastroenterologists and Patients Report High Satisfaction Rates With Telehealth Services During the Novel Coronavirus 2019 Pandemic. Clin Gastroenterol Hepatol 2020; 18:2393-2397.e2. [PMID: 32663521 PMCID: PMC7352104 DOI: 10.1016/j.cgh.2020.07.014] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Avi Dobrusin
- Department of Anesthesiology, Washington University/Barnes-Jewish Hospital, St. Louis, Missouri
| | - Fadi Hawa
- Department of Internal Medicine, St. Joseph Mercy Ann Arbor Hospital, Ypsilanti, Michigan
| | | | - Paul Corsello
- Huron Gastroenterology Associates, Ypsilanti, Michigan
| | - Kevin Harlen
- PE Practice Solutions, Silver Spring, Maryland,Digestive Health Physicians Association, Silver Spring, Maryland
| | | | | | | | - Nadeem Baig
- Allied Digestive Health, Red Bank, New Jersey
| | - Andrew Sousa
- Digestive Health Physicians Association, Silver Spring, Maryland
| | - Naresh T. Gunaratnam
- Huron Gastroenterology Associates, Ypsilanti, Michigan,Reprint requests Address requests for reprints to: Naresh T. Gunaratnam, MD, Huron Gastroenterology Associates, 5300 Elliott Drive, Ypsilanti, Michigan 48197; fax: (734) 712-2820
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30
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Sohail M, Baig N, Sher M, Jamil R, Altaf M, Akhtar S, Sharif M. A Novel Tin-Doped Titanium Oxide Nanocomposite for Efficient Photo-Anodic Water Splitting. ACS Omega 2020; 5:6405-6413. [PMID: 32258875 PMCID: PMC7114145 DOI: 10.1021/acsomega.9b03876] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 01/30/2020] [Indexed: 06/11/2023]
Abstract
Herein, we report the expedient synthesis of new nanocomposite Sn0.39Ti0.61O2·TiO2 flakes using simple sol-gel and calcination methods. In order to prepare this material, first, we generated a polymeric gel using cost-effective and easily accessible precursors such as SnCl4, titanium isopropoxide, and tetrahydrofuran (THF). A small amount of triflic acid was used to initiate THF polymerization. The calcination of the resulting gel at 500 °C produced a Sn-Ti bimetallic nanocomposite. This newly synthesized Sn0.39Ti0.61O2·TiO2 was characterized by X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and UV-visible spectroscopy. The photoelectrochemical (PEC) studies were performed for the first time using Sn0.39Ti0.61O2·TiO2 coated over fluorine-doped tin oxide (FTO) under simulated 1 sun solar radiation. The chronoamperometric study of the Sn0.39Ti0.61O2·TiO2/FTO revealed the repeatable and substantially higher photocurrent for the oxygen evolution reaction (OER) when compared to only TiO2. Moreover, the synthesized material exhibited high stability both in the presence and absence of light. The photocatalytic studies suggested that the sol-gel-synthesized Sn0.39Ti0.61O2·TiO2 can be efficiently used as a photoanode in the water-splitting reaction.
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Affiliation(s)
- Manzar Sohail
- Department
of Chemistry, School of Natural Sciences, National University of Sciences and Technology, Islamabad 45320, Pakistan
| | - Nadeem Baig
- Chemistry
Department, King Fahd University of Petroleum
and Minerals, Dhahran 31261, Saudi Arabia
- Center
for Research Excellence in Desalination and Water Treatment, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Muhammad Sher
- Department
of Chemistry, Allama Iqbal Open University, Islamabad 44000, Pakistan
| | - Rabia Jamil
- Department
of Chemistry, School of Natural Sciences, National University of Sciences and Technology, Islamabad 45320, Pakistan
| | - Muhammad Altaf
- Department
of Chemistry, Government College University, Lahore 54000, Pakistan
| | - Sultan Akhtar
- Electron
Microscopy Unit, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia
| | - Muhammad Sharif
- Chemistry
Department, King Fahd University of Petroleum
and Minerals, Dhahran 31261, Saudi Arabia
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31
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Kawde AN, Taha M, Alansari RS, Almandil NB, Anouar EH, Uddin N, Rahim F, Chigurupati S, Nawaz M, Hayat S, Ibrahim M, Elakurthy PK, Vijayan V, Morsy M, Ibrahim H, Baig N, Khan KM. Exploring efficacy of indole-based dual inhibitors for α-glucosidase and α-amylase enzymes: In silico, biochemical and kinetic studies. Int J Biol Macromol 2020; 154:217-232. [PMID: 32173438 DOI: 10.1016/j.ijbiomac.2020.03.090] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 03/11/2020] [Indexed: 01/25/2023]
Abstract
α-Glucosidase and α-amylase are enzymes which are associated with diabetic II. These enzymes break macromolecules of sugar into monosugar molecules which is soluble in body, hence increase the sugar level in blood. There is need to develop economical and save inhibitors to prevent them from breaking sugar macromolecules to soluble molecules which will control the level of sugar in blood. Therefore, we synthesized indole-based derivatives (1-18) and evaluated as dual inhibitor for α-glucosidase and α-amylase. These chemical scaffolds were built with variation in aryl ring which were found active with good to moderate activity for α-glucosidase having IC50 value ranging from 13.99 ± 0.10 to 59.09 ± 0.30 μM when compared with standard acarbose with IC50 of 11.29 ± 0.10 μM; for α-amylase IC50 value ranging from 13.14 ± 0.10 to 58.99 ± 0.30 μM when compared with the standard acarbose with IC50 of 11.12 ± 0.10 μM. Structure activity relationship (SAR) has been established for all compounds. Enzymatic kinetic study and molecular docking study have been carried out to investigate the binding interactions α-glucosidase and α-amylase enzyme.
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Affiliation(s)
- Abdel-Nasser Kawde
- Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia.
| | - Muhammad Taha
- Department of Clinical Pharmacy, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia.
| | - Raneem Saud Alansari
- College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Noor Barak Almandil
- Department of Clinical Pharmacy, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - El Hassane Anouar
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Nizam Uddin
- Department of Chemistry, University of Karachi, Karachi 75270, Pakistan
| | - Fazal Rahim
- Department of Chemistry, Hazara University, Mansehra 21300, Khyber Pakhtunkhwa, Pakistan
| | - Sridevi Chigurupati
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Buraidah 52571, Saudi Arabia
| | - Muhammad Nawaz
- Department of Nano-Medicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Shawkat Hayat
- Department of Chemistry, Hazara University, Mansehra 21300, Khyber Pakhtunkhwa, Pakistan
| | - Mohamad Ibrahim
- Department of Clinical Pharmacy, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | | | | | - Mohamed Morsy
- Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Hossieny Ibrahim
- Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt
| | - Nadeem Baig
- Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Khalid Mohammed Khan
- H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
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32
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Altaf M, Ahmad S, Kawde AN, Baig N, Alawad A, Altuwaijri S, Stoeckli-Evans H, Isab AA. Correction: Synthesis, structural characterization, electrochemical behavior and anticancer activity of gold( iii) complexes of meso-1,2-di(1-naphthyl)-1,2-diaminoethane and tetraphenylporphyrin. NEW J CHEM 2020. [DOI: 10.1039/d0nj90089c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Correction for ‘Synthesis, structural characterization, electrochemical behavior and anticancer activity of gold(iii) complexes of meso-1,2-di(1-naphthyl)-1,2-diaminoethane and tetraphenylporphyrin’ by Muhammad Altaf et al., New J. Chem., 2016, 40, 8288–8295, DOI: 10.1039/C6NJ00692B.
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Affiliation(s)
- Muhammad Altaf
- Center of Excellence in Nanotechnology (CENT)
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - Saeed Ahmad
- Department of Chemistry
- College of Sciences and Humanities
- Prince Sattam bin Abdulaziz University
- Al-Kharj 11942
- Saudi Arabia
| | - Abdel-Nasser Kawde
- Department of Chemistry
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - Nadeem Baig
- Department of Chemistry
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - Abdullah Alawad
- National Center for Stem Cell Technology (NCSCT)
- Life Sciences and Environmental Research Institute
- King Abdulaziz City for Science and Technology (KACST)
- Riyadh 11442
- Saudi Arabia
| | - Saleh Altuwaijri
- Clinical Research Laboratory
- SAAD Research Development Center
- SAAD Specialist Hospital
- Al-Khobar 31952
- Saudi Arabia
| | | | - Anvarhusein A. Isab
- Department of Chemistry
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
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33
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Baig N. Recent Progress on the Development of Superhydrophobic and Superoleophilic Meshes for Oil and Water Separation: A Review. ACS Symposium Series 2020. [DOI: 10.1021/bk-2020-1352.ch010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Nadeem Baig
- Center for Research Excellence in Desalination & Water Treatment, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
- Center for Environment and Water, King Fahd University of Petroleum and Minerals, Dhahran 31261¸ Saudi Arabia
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34
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Saleh TA, Baig N, Alghunaimi FI, Aljuryyed NW. A flexible biomimetic superhydrophobic and superoleophilic 3D macroporous polymer-based robust network for the efficient separation of oil-contaminated water. RSC Adv 2020; 10:5088-5097. [PMID: 35498331 PMCID: PMC9049064 DOI: 10.1039/c9ra06579b] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 12/18/2019] [Indexed: 11/21/2022] Open
Abstract
The development of stable 3D surfaces for oil/water separation has been of great interest to researchers. Inspired by the lotus leaf, in this study, a superhydrophobic stable and robust surface was generated by the combination of n-octadecyltrichlorosilane, silica, polypyrrole and polyurethane (ODTCS–SiO2–PP–PU). The constructed 3D network displayed superhydrophobic and superoleophilic behavior with a high water contact angle of 154.7° ± 0.8°. The superhydrophobic behavior of the porous material was found to be stable for months. Apart from the hydrophobicity analysis of the material, the various forms of the materials were investigated via scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), and energy-dispersive X-ray spectroscopy (EDX). Under the force of gravity, hexane displayed an exceptionally high flux of 102 068 Lm−2 h−1 through ODTCS–SiO2–PP–PU. The macroporous network of ODTCS–SiO2–PP–PU displayed fewer chances of fouling, which is a common issue with membranes. Moreover, its porous network displayed good absorption capacity for various non-polar organic solvents. The maximum absorption capacity observed for toluene was 34 times its own weight. The separation efficiency of various non-polar organic solvents from water was observed in the range of 99.5 to 99.8%. ODTCS–SiO2–PP–PU, due to its superhydrophobicity, 3D porous network, extraordinarily high flux, good absorption capacity, and excellent separation capability, has been established as a good candidate for the separation of organic and oil contaminants from water. Superhydrophobic polyurethane for oil and water separation.![]()
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Affiliation(s)
- Tawfik A. Saleh
- Chemistry Department
- King Fahd University of Petroleum & Minerals
- Dhahran 31261
- Saudi Arabia
| | - Nadeem Baig
- Chemistry Department
- King Fahd University of Petroleum & Minerals
- Dhahran 31261
- Saudi Arabia
| | - Fahd I. Alghunaimi
- Saudi Aramco
- Research & Development Center
- Oil & Gas Treatment R&D Division
- Dhahran 31311
- Saudi Arabia
| | - Norah W. Aljuryyed
- Saudi Aramco
- EXPEC Advanced Research Center
- Production Technology Division
- Dhahran 31311
- Saudi Arabia
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35
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Jamil R, Sohail M, Baig N, Ansari MS, Ahmed R. Synthesis of Hollow Pt-Ni Nanoboxes for Highly Efficient Methanol Oxidation. Sci Rep 2019; 9:15273. [PMID: 31649341 PMCID: PMC6813309 DOI: 10.1038/s41598-019-51780-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 10/02/2019] [Indexed: 11/09/2022] Open
Abstract
In direct methanol fuel cell technology, highly stable electrochemical catalysts are critically important for their practical utilization at the commercial scale. In this study, sub ~10 nm hollow Pt-Ni (1:1 at. ratio) nanoboxes supported on functionalized Vulcan carbon (Pt-Ni/C-R2) were synthesized through a facile method for the efficient electrooxidation of methanol. Two reaction procedures, namely, a simultaneous reduction and a modified sequential reduction method using a reverse microemulsion (RME) method, were adopted to synthesize solid Pt-Ni NPs and hollow nanoboxes, respectively. To correlate the alloy composition and surface structure with the enhanced catalytic activity, the results were compared with the nanocatalyst synthesized using a conventional NaBH4 reduction method. The calculated electroactive surface area for the Pt-Ni/C-R2 nanoboxes was 190.8 m2.g-1, which is significantly higher compared to that of the Pt-Ni nanocatalyst (96.4 m2.g-1) synthesized by a conventional reduction method. Hollow nanoboxes showed 34% and 44% increases in mass activity and rate of methanol oxidation reaction, respectively, compared to solid NPs. These results support the nanoreactor confinement effect of the hollow nanoboxes. The experimental results were supported by Density Functional Theory (DFT) studies, which revealed that the lowest CO poisoning of the Pt1Ni1 catalyst among all Ptm-Nin mixing ratios may account for the enhanced methanol oxidation. The synthesized hollow Pt-Ni/C (R2) nanoboxes may prove to be a valuable and highly efficient catalysts for the electrochemical oxidation of methanol due to their low cost, numerous catalytically active sites, low carbon monoxide poisoning, large electroactive surface area and long-term stability.
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Affiliation(s)
- Rabia Jamil
- Department of Chemistry, School of Natural Sciences, National University of Science and Technology (NUST), Islamabad, 44000, Pakistan
| | - Manzar Sohail
- Department of Chemistry, School of Natural Sciences, National University of Science and Technology (NUST), Islamabad, 44000, Pakistan.
| | - Nadeem Baig
- Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Muhammad S Ansari
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Riaz Ahmed
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
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Sajid M, Baig N, Alhooshani K. Chemically modified electrodes for electrochemical detection of dopamine: Challenges and opportunities. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.05.042] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Baig N, Sajid M, Saleh TA. Graphene-based adsorbents for the removal of toxic organic pollutants: A review. J Environ Manage 2019; 244:370-382. [PMID: 31132618 DOI: 10.1016/j.jenvman.2019.05.047] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 03/23/2019] [Accepted: 05/10/2019] [Indexed: 06/09/2023]
Abstract
The synthesis and application of efficient materials for remediation of environmental contaminants from water is an emerging area of research. Graphene has received tremendous attention in various fields due to its exceptional properties. Graphene and its derivatives have also been extensively explored for the adsorptive removal of pollutants from water. The recent trends are inclined toward functionalization of graphene-based materials to get the advantage of their improved properties. The functionalized graphene materials are efficient due to their enhanced properties resulting from synergistic effects. This article reviews the synthesis and application of graphene-based adsorbents for the removal of organic pollutants from water. A critical account is provided on synthesis methods, applications, adsorption mechanisms, the figure of merits, and removal performances. The accomplishments, limitations, challenges, and future research directions are also highlighted.
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Affiliation(s)
- Nadeem Baig
- Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Muhammad Sajid
- Center for Environment and Water, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Tawfik A Saleh
- Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia.
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Baig N, Saleh TA. Superhydrophobic Polypropylene Functionalized with Nanoparticles for Efficient Fast Static and Dynamic Separation of Spilled Oil from Water. Glob Chall 2019; 3:1800115. [PMID: 31565391 PMCID: PMC6686158 DOI: 10.1002/gch2.201800115] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 03/17/2019] [Indexed: 05/21/2023]
Abstract
Frequent oil spills not only threaten the ecosystem, but they are also a waste of a valuable source of energy. There is an urgent need to develop materials that can readily remove spilled oil from water bodies and also have the capacity to collect it for energy applications. Herein, a superhydrophobic fiber of functionalized polypropylene is engineered with the help of palmitic acid interaction with incorporated copper oxide nanoparticles. The successful development of functionalized polypropylene is confirmed by Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, and energy-dispersive X-ray spectroscopy. The scanning electron microscopy images reveal that the surface roughness of the polypropylene is enhanced after functionalization. The optimized functionalized polypropylene displays an ultrahydrophobic surface with a water contact angle of 162.42°. The functionalized polyprolyene displays good absorption capacity. It has the capacity to take 30 to 40 times its own weight in oils and nonpolar organic solvents, which makes it useful for small spills. With a flux of 11 204 Lm-2 h-1, functionalized polypropylene is as an ideal material for the dynamic separation of oil spills from water. It also has excellent selectivity towards oil, water rejection, and oil absorption capacity.
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Affiliation(s)
- Nadeem Baig
- Chemistry DepartmentKing Fahd University of Petroleum & MineralsDhahran31261Saudi Arabia
| | - Tawfik A. Saleh
- Chemistry DepartmentKing Fahd University of Petroleum & MineralsDhahran31261Saudi Arabia
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Altaf M, Casagrande N, Mariotto E, Baig N, Kawde AN, Corona G, Larcher R, Borghese C, Pavan C, Seliman AA, Aldinucci D, Isab AA. Potent In Vitro and In Vivo Anticancer Activity of New Bipyridine and Bipyrimidine Gold (III) Dithiocarbamate Derivatives. Cancers (Basel) 2019; 11:cancers11040474. [PMID: 30987271 PMCID: PMC6521029 DOI: 10.3390/cancers11040474] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 03/12/2019] [Accepted: 03/18/2019] [Indexed: 11/16/2022] Open
Abstract
We synthesized eight new bipyridine and bipyrimidine gold (III) dithiocarbamate-containing complexes (C1-C8) and tested them in a panel of human cancer cell lines. We used osteosarcoma (MG-63), lung (A549), prostate (PC3 and DU145), breast (MCF-7), ovarian (A2780 and A2780cis, cisplatin- and doxorubicin-resistant), and cervical (ME-180 and R-ME-180, cisplatin resistant) cancer cell lines. We found that C2, C3, C6, and C7 were more cytotoxic than cisplatin in all cell lines tested and overcame cisplatin and doxorubicin resistance in A2780cis and R-ME-180 cells. In the PC3 prostate cancer cell line, the gold (III) complex C6 ([Au₂(BPM)(DMDTC)₂]Cl₄) induced apoptosis and double-stranded DNA breaks, modified cell cycle phases, increased Reactive Oxigen Species (ROS) generation, and reduced thioredoxin reductase and proteasome activities. It inhibited PC3 cell migration and was more cytotoxic against PC3 cells than normal human adipose-derived stromal cells. In mice bearing PC3 tumor xenografts, C6 reduced tumor growth by more than 70% without causing weight loss. Altogether, our results demonstrate the anticancer activity of these new gold (III) complexes and support the potential of C6 as a new agent for prostate cancer treatment.
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Affiliation(s)
- Muhammad Altaf
- Department of Chemistry, GC University, Lahore 54000, Pakistan.
| | - Naike Casagrande
- Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy.
| | - Elena Mariotto
- Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy.
| | - Nadeem Baig
- Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia.
| | - Abdel-Nasser Kawde
- Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia.
| | - Giuseppe Corona
- Immunopathology and Cancer Biomarkers, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy.
| | - Roberto Larcher
- Center for Technological Transfer, Edmund Mach Foundation, 38010 Trento, Italy.
| | - Cinzia Borghese
- Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy.
| | - Claudia Pavan
- Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy.
| | - Adam A Seliman
- Lab Technical Support Office (LTSO), King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia.
| | - Donatella Aldinucci
- Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, 33081 Aviano, Italy.
| | - Anvarhusein A Isab
- Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia.
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Baig N, Kawde A, Ibrahim M. A New Approach of Controlled Single Step In Situ Fabrication of Graphene Composite Sensor for Simultaneous Sensing of Small Biomolecules in Human Urine. ChemistrySelect 2019. [DOI: 10.1002/slct.201803274] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Nadeem Baig
- Chemistry DepartmentCollege of SciencesKing Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia
| | - Abdel‐Nasser Kawde
- Chemistry DepartmentCollege of SciencesKing Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia
| | - Mohamed Ibrahim
- Department of Clinical Pharmacy ResearchInstitute for Research and Medical ConsultationsImam Abdulrahman Bin Faisal University, P.O. Box 1982 Dammam 31441 Saudi Arabia
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41
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Sulaiman AAA, Kalia N, Bhatia G, Kaur M, Fettouhi M, Altaf M, Baig N, Kawde AN, Isab AA. Cytotoxic effects of gold(i) complexes against colon, cervical and osteo carcinoma cell lines: a mechanistic approach. NEW J CHEM 2019. [DOI: 10.1039/c9nj02063b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Water-soluble gold(i) complexes, [Au(Ipr)(L)]PF6where L = thiourea (Tu)1andN,N′-dimethylthiourea (Me2Tu)2, were synthesized from the parent 1,3-bis(2,6-di-isopropylphenyl)imidazol-2-ylidenechloridogold(i) [(Ipr)AuCl] (0).
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Affiliation(s)
- Adam A. A. Sulaiman
- Lab Technical Support Office (LTSO)
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - Namarta Kalia
- Department of Molecular Biology and Biochemistry
- Guru Nanak Dev University
- Amritsar
- India
| | - Gaurav Bhatia
- Department of Molecular Biology and Biochemistry
- Guru Nanak Dev University
- Amritsar
- India
| | - Manpreet Kaur
- Department of Human Genetics
- Guru Nanak Dev University
- Amritsar
- India
| | - Mohammed Fettouhi
- Department of Chemistry
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | | | - Nadeem Baig
- Department of Chemistry
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - Abdel-Nasser Kawde
- Department of Chemistry
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - Anvarhusein A. Isab
- Department of Chemistry
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
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42
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Baig N, Chauhan DS, Saleh TA, Quraishi MA. Diethylenetriamine functionalized graphene oxide as a novel corrosion inhibitor for mild steel in hydrochloric acid solutions. NEW J CHEM 2019. [DOI: 10.1039/c8nj04771e] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrochemical and surface studies of diethylenetriamine functionalized graphene oxide as a novel corrosion inhibitor for mild steel in hydrochloric acid solutions.
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Affiliation(s)
- Nadeem Baig
- Department of Chemistry
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - D. S. Chauhan
- Center of Research Excellence in Corrosion
- Research Institute, King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - Tawfik A. Saleh
- Department of Chemistry
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - M. A. Quraishi
- Center of Research Excellence in Corrosion
- Research Institute, King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
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43
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Rana A, Baig N, Saleh TA. Electrochemically pretreated carbon electrodes and their electroanalytical applications – A review. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2018.12.019] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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44
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Irfan M, Irfan M, Idris A, Baig N, Saleh TA, Nasiri R, Iqbal Y, Muhammad N, Rehman F, Khalid H. Fabrication and performance evaluation of blood compatible hemodialysis membrane using carboxylic multiwall carbon nanotubes and low molecular weight polyvinylpyrrolidone based nanocomposites. J Biomed Mater Res A 2018; 107:513-525. [DOI: 10.1002/jbm.a.36566] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 09/06/2018] [Accepted: 09/28/2018] [Indexed: 02/05/2023]
Affiliation(s)
- Muhammad Irfan
- Interdisciplinary Research Centre in Biomedical Materials; COMSATS University Islamabad (CUI), Lahore Campus; Defence Road, Off Raiwind Road, Lahore Pakistan
- Faculty of Chemical and Energy Engineering; Institute of Bioproduct Development, Universiti Teknologi Malaysia; 81310 UTM, Johor Bahru Johor Malaysia
- Department of Bioprocess and Polymer Engineering, Faculty of Chemical and Energy Engineering; Universiti Teknologi Malaysia; 81310 UTM, Johor Bahru Johor Malaysia
| | - Masooma Irfan
- Department of Chemistry; COMSATS University Islamabad (CUI), Lahore Campus; Defence Road, Off Raiwind Road, Lahore Pakistan
| | - Ani Idris
- Faculty of Chemical and Energy Engineering; Institute of Bioproduct Development, Universiti Teknologi Malaysia; 81310 UTM, Johor Bahru Johor Malaysia
- Department of Bioprocess and Polymer Engineering, Faculty of Chemical and Energy Engineering; Universiti Teknologi Malaysia; 81310 UTM, Johor Bahru Johor Malaysia
| | - Nadeem Baig
- Chemistry Department; King Fahd University of Petroleum and Minerals; Dhahran, 31261 Saudi Arabia
| | - Tawfik A. Saleh
- Chemistry Department; King Fahd University of Petroleum and Minerals; Dhahran, 31261 Saudi Arabia
| | - Rozita Nasiri
- Faculty of Chemical and Energy Engineering; Institute of Bioproduct Development, Universiti Teknologi Malaysia; 81310 UTM, Johor Bahru Johor Malaysia
- Department of Bioprocess and Polymer Engineering, Faculty of Chemical and Energy Engineering; Universiti Teknologi Malaysia; 81310 UTM, Johor Bahru Johor Malaysia
| | - Younas Iqbal
- Faculty of Science, Technology and Human Development; University Tun Hussein Onn Malaysia; 86400 Parit Raja Johor, Malaysia
| | - Nawshad Muhammad
- Interdisciplinary Research Centre in Biomedical Materials; COMSATS University Islamabad (CUI), Lahore Campus; Defence Road, Off Raiwind Road, Lahore Pakistan
| | - Fozia Rehman
- Interdisciplinary Research Centre in Biomedical Materials; COMSATS University Islamabad (CUI), Lahore Campus; Defence Road, Off Raiwind Road, Lahore Pakistan
| | - Hamad Khalid
- Interdisciplinary Research Centre in Biomedical Materials; COMSATS University Islamabad (CUI), Lahore Campus; Defence Road, Off Raiwind Road, Lahore Pakistan
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45
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Baig N, Saleh TA. Natural-Light-Initiated 3D Macro Zigzag Architecture of Graphene-Reinforced Polystyrene for Gravity-Driven Oil and Water Separation. Glob Chall 2018; 2:1800040. [PMID: 31565312 PMCID: PMC6607307 DOI: 10.1002/gch2.201800040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 07/29/2018] [Indexed: 05/30/2023]
Abstract
Superhydrophobic 3D robust materials are introduced for the separation of hexane and water. For the first time, novel 3D zigzag polystyrene on graphene-incorporated polyurethane (3D zz-PS/GR/PU) is prepared using exclusively natural sunlight without any chemical initiator. The zigzag polystyrene growth is accomplished by polymerizing the styrene vapors. The natural sunlight provides a compact 3D zz-PS/GR/PU material with superoleophilic and hydrophobic channels that allow for the rapid passage of oil, whereas water is entirely prevented from passing. The 3D zz-PS/GR/PU compact channels are transformed into the compressible material by treating them with toluene without affecting the hydrophobicity of the material. The 3D zz-PS/GR/PU displays a high-water contact angle of approximately 150°. The developed materials are characterized by FTIR, SEM, and BET. The graphene incorporation makes surface area of the 3D zz-PS/GR/PU substantially large compared with PU. It is improved from 15 to 67 m2 g-1. The pore size of the adsorption and desorption in the 3D zz-PS/GR/PU is also reduced from 354 and 352 Å to 34 and 33 Å. The 3D zz-PS/GR/PU satisfies the requirement of high-demanding superhydrophobic materials, like a low-cost fabrication process, reusability, and tunability. This strategy can trigger large-scale production with a controlled morphology.
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Affiliation(s)
- Nadeem Baig
- Chemistry DepartmentKing Fahd University of Petroleum & MineralsDhahran31261Saudi Arabia
| | - Tawfik A. Saleh
- Chemistry DepartmentKing Fahd University of Petroleum & MineralsDhahran31261Saudi Arabia
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46
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Affiliation(s)
- Nadeem Baig
- Chemistry Department, College of Sciences; King Fahd University of Petroleum and Minerals; Dhahran 31261 Saudi Arabia
| | - Azeem Rana
- Chemistry Department, College of Sciences; King Fahd University of Petroleum and Minerals; Dhahran 31261 Saudi Arabia
| | - Abdel-Nasser Kawde
- Chemistry Department, College of Sciences; King Fahd University of Petroleum and Minerals; Dhahran 31261 Saudi Arabia
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47
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Baig N, Saleh TA. Initiator-Free Natural Light-Driven Vapor Phase Synthesis of a Porous Network of 3D Polystyrene Branched Carbon Nanofiber Grafted Polyurethane for Hexane /Water Separation. ChemistrySelect 2018. [DOI: 10.1002/slct.201801549] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Nadeem Baig
- Chemistry Department; King Fahd University of Petroleum & Minerals; Dhahran 31261 Saudi Arabia
| | - Tawfik A. Saleh
- Chemistry Department; King Fahd University of Petroleum & Minerals; Dhahran 31261 Saudi Arabia
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48
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Baig N, Saleh TA. Electrodes modified with 3D graphene composites: a review on methods for preparation, properties and sensing applications. Mikrochim Acta 2018; 185:283. [DOI: 10.1007/s00604-018-2809-3] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Accepted: 04/14/2018] [Indexed: 12/12/2022]
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49
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Jomaa MY, Altaf M, Ahmad S, Alhoshani A, Baig N, Kawde AN, Bhatia G, Singh J, Isab AA. Synthesis, characterization and anticancer evaluation of transplatin derivatives with heterocyclic thiones. Polyhedron 2018. [DOI: 10.1016/j.poly.2017.12.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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50
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Sohail M, Altaf M, Baig N, Jamil R, Sher M, Fazal A. A new water stable zinc metal organic framework as an electrode material for hydrazine sensing. NEW J CHEM 2018. [DOI: 10.1039/c8nj01507d] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metal–organic frameworks (MOFs) as direct electrode materials for electrochemical sensing can offer inherent advantages such as containing sensing element and redox mediator in a single molecule.
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Affiliation(s)
- Manzar Sohail
- Center of Research Excellence in Nanotechnology (CENT)
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - Muhammad Altaf
- Center of Research Excellence in Nanotechnology (CENT)
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - Nadeem Baig
- Chemistry Department
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - Rabia Jamil
- Department of Chemistry
- Allama Iqbal Open University
- Islamabad
- Pakistan
| | - Muhammad Sher
- Department of Chemistry
- Allama Iqbal Open University
- Islamabad
- Pakistan
| | - Atif Fazal
- Center of Research Excellence in Petroleum Refining and Petrochemicals (CoRE-PRP)
- King Fahd University of Petroleum and Minerals
- Dhahran
- Saudi Arabia
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