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Vinayagam V, Kishor Kumar NK, Palani KN, Ganesh S, Kushwaha OS, Pugazhendhi A. Recent breakthroughs on the development of electrodeionization systems for toxic pollutants removal from water environment. ENVIRONMENTAL RESEARCH 2024; 241:117549. [PMID: 37931737 DOI: 10.1016/j.envres.2023.117549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 10/25/2023] [Accepted: 10/30/2023] [Indexed: 11/08/2023]
Abstract
Since ecosystems are becoming inherently polluted, long-term contaminant removal methods are required. Electrodeionization, in particular, has recently been demonstrated as an effective approach for eliminating ionic compounds from contaminated water sources. Being a more environmentally friendly technology is most likely the main reason for its eminence. It uses electricity to replace toxic contaminants that are conventionally used to regenerate and hence reducing the toxins associated with resin regeneration. In wastewater treatment, continuous electrodeionization system overcomes several limitations of ion exchange resins, notably ion dumping. This prospective assessment delves into the mechanism, principle, and theory of electrodeionization system. It also focused on the design and applications, particularly in the removal of toxic compounds, as well as current advances in the electrodeionization system. Recent breakthroughs in electrodeionization were comprehensively discussed. Further developments in electrodeionization systems are also projected, with improved efficiency at the time of functioning at lower costs because of reduced energy use, proving them desirable for commercial usage with a broad array of applications across the globe.
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Affiliation(s)
- Vignesh Vinayagam
- Department of Chemical Engineering, Sri Venkateswara College of Engineering, Chennai, Tamil Nadu, 602117, India
| | - Nitish Kumar Kishor Kumar
- Department of Chemical Engineering, Sri Venkateswara College of Engineering, Chennai, Tamil Nadu, 602117, India
| | | | - Sudha Ganesh
- Department of Chemical Engineering, Sri Venkateswara College of Engineering, Chennai, Tamil Nadu, 602117, India
| | - Omkar Singh Kushwaha
- Department of Chemical Engineering, Indian Institute of Technology, Chennai, 60036, India
| | - A Pugazhendhi
- School of Engineering, Lebanese American University, Byblos, Lebanon; Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, 603103, Tamil Nadu, India.
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2
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Quansah JO, Obiri-Nyarko F, Karikari AY. Adsorptive removal of dissolved Iron from groundwater by brown coal - A low-cost adsorbent. JOURNAL OF CONTAMINANT HYDROLOGY 2024; 260:104283. [PMID: 38101230 DOI: 10.1016/j.jconhyd.2023.104283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 11/05/2023] [Accepted: 12/08/2023] [Indexed: 12/17/2023]
Abstract
Iron (Fe) contamination in groundwater is a widespread issue, necessitating the implementation of efficient removal methods to ensure the provision of safe drinking water. To contribute to the development of effective and sustainable solutions for addressing Fe contamination problems, this study investigated the potential of natural brown coal (BC) as a cost-effective adsorbent for removing dissolved Fe from groundwater. The study also explored the regeneration and reusability potential, as well as the effects of operational parameters, including pH, temperature, adsorbate concentration, and competitive ions, on the adsorption process. The equilibrium data fitted very well with the Langmuir model (R2 = 0.983), yielding a maximum adsorption capacity of 1.41 mg g-1. The adsorption kinetics were well described by the pseudo-second-order kinetic model. Notably, higher solution pH, Fe concentration, and temperature values led to higher Fe removal. The adsorption process exhibited endothermic behaviour, accompanied by an increase in randomness at the interface between the BC and the Fe. The BC was easily regenerated and maintained good adsorption capacity after four cycles of adsorption and regeneration. However, the presence of high-valent cations could affect its performance. Fourier-transform infrared spectrometry, coupled with structural and aqueous solution elemental analyses, revealed a synergetic adsorption mechanism, comprising ion-exchange with mono and divalent basic cations and complexation with functional groups. Overall, these findings highlight the potential of brown coal as a cost-effective adsorbent for Fe removal from groundwater.
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Affiliation(s)
- Jude Ofei Quansah
- Environmental Chemistry and Sanitation Engineering Division, CSIR-Water Research Institute, P.O. Box M32, Accra, Ghana
| | - Franklin Obiri-Nyarko
- Groundwater and Geoscience Division, CSIR-Water Research Institute, P.O. Box M32, Accra, Ghana.
| | - Anthony Yaw Karikari
- Environmental Chemistry and Sanitation Engineering Division, CSIR-Water Research Institute, P.O. Box M32, Accra, Ghana
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3
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Dong K, Jiang Y, Zhang Y, Qin Z, Mo L. Tannic acid-assisted fabrication of antibacterial sodium alginate-based gel beads for the multifunctional adsorption of heavy metal ions and dyes. Int J Biol Macromol 2023; 252:126249. [PMID: 37562481 DOI: 10.1016/j.ijbiomac.2023.126249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/17/2023] [Accepted: 08/07/2023] [Indexed: 08/12/2023]
Abstract
The existence of heavy metals and dyes seriously affects the ecological environment and human safety. Antibacterial adsorption materials with the broad-spectrum removal of multiple pollutants are urgently required for water remediation. Herein, a sustainable and antibacterial sodium alginate (SA) gel bead adsorbent with honeycomb cellular architecture is developed by the biomimetic deposition polyphenolic tannic acid (TA) induced grafting diethylenetriamine (DETA) under mild conditions for efficient removal of Cr(VI) and dyes. Taking advantage of the catechol surface chemistry, TA occurring rapid polymerization with DETA monomers not only enhances the water resistance and thermal stability of the gel bead, but also introduces abundant polyphenolic functional groups and active adsorption sites. The multifunctional gel bead showed outstanding antibacterial activity against S. aureus (sterilization rates: 83.8 %) and E. coli (sterilization rates: 99.5 %). The maximum adsorption capacity of gel bead for Cr(VI) was 163.9 mg/g. Moreover, the removal efficiency of the gel bead for dyes of Safranine T and Rhodamine B was 89.5 % (maximum adsorption capacity: 537 mg/g) and 76.7 % (maximum adsorption capacity: 460.2 mg/g), respectively, indicating its excellent broad-spectrum adsorption performance for multiple pollutants. Therefore, TA-assisted fabrication of SA-based gel bead with excellent antibacterial property is a promising multifunctional adsorption material for practical water remediation.
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Affiliation(s)
- Kaiqiang Dong
- School of Resources Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Nanning 530004, China
| | - Yanling Jiang
- School of Resources Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Nanning 530004, China
| | - Yidan Zhang
- School of Resources Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Nanning 530004, China
| | - Zhiyong Qin
- School of Resources Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Nanning 530004, China.
| | - Liuting Mo
- School of Resources Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Nanning 530004, China.
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4
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Aziz T, Imran M, Haider A, Shahzadi A, Ul Abidin MZ, Ul-Hamid A, Nabgan W, Algaradah MM, Fouda AM, Ikram M. Catalytic performance and antibacterial behaviour with molecular docking analysis of silver and polyacrylic acid doped graphene quantum dots. RSC Adv 2023; 13:28008-28020. [PMID: 37746345 PMCID: PMC10517100 DOI: 10.1039/d3ra04741e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 09/16/2023] [Indexed: 09/26/2023] Open
Abstract
In this research, a fixed concentration (3 wt%) of Ag/PAA and PAA/Ag doped graphene quantum dots (GQDs) were synthesized using the co-precipitation technique. A variety of characterization techniques were employed to synthesize samples to investigate their optical, morphological, structural, and compositional analyses, antimicrobial efficacy, and dye degradation potential with molecular docking analysis. GQDs have high solubility, narrow band gaps, and are suitable for electron acceptors and donors but show less adsorption and catalytic behavior. Incorporating polyacrylic acid (PAA) into GQDs increases the catalytic and antibacterial activities due to the carboxylic group (-COOH). Furthermore, introducing silver (Ag) increased the degradation of dye and microbes as it had a high surface-to-volume ratio. In addition, molecular docking studies were used to decipher the mechanism underlying the bactericidal action of silver and polyacrylic acid-doped graphene quantum dots and revealed inhibition of β-lactamase and DNA gyrase.
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Affiliation(s)
- Tahreem Aziz
- Department of Chemistry, Government College University, Faisalabad Pakpattan Road Sahiwal Punjab 57000 Pakistan
| | - Muhammad Imran
- Department of Chemistry, Government College University, Faisalabad Pakpattan Road Sahiwal Punjab 57000 Pakistan
| | - Ali Haider
- Department of Clinical Sciences, Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture Multan 66000 Punjab Pakistan
| | - Anum Shahzadi
- Faculty of Pharmacy, The University of Lahore Lahore 54000 Pakistan
| | - Muhammad Zain Ul Abidin
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore Lahore 54000 Punjab Pakistan
| | - Anwar Ul-Hamid
- Core Research Facilities, King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia
| | - Walid Nabgan
- Departament d'Enginyeria Química, Universitat Rovira i Virgili Av Països Catalans 26 43007 Tarragona Spain
| | | | - Ahmed M Fouda
- Chemistry Department, Faculty of Science, King Khalid University Abha 61413 Saudi Arabia
| | - Muhammad Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore Lahore 54000 Punjab Pakistan
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5
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Wang R, Zhu Z, Cheng W, Chang C, Song X, Huang F. Cadmium accumulation and isotope fractionation in typical protozoa Tetrahymena: A new perspective on remediation of Cd pollution in wastewater. JOURNAL OF HAZARDOUS MATERIALS 2023; 454:131517. [PMID: 37146330 DOI: 10.1016/j.jhazmat.2023.131517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/17/2023] [Accepted: 04/25/2023] [Indexed: 05/07/2023]
Abstract
Cadmium (Cd) pollution threatens water safety and human health, which has raised serious public concern. Tetrahymena is a model protozoan, possessing the potential to remediate Cd contaminated water given the rapid expression of thiols. However, the mechanism of Cd accumulation in Tetrahymena has not been well understood, which hinders its application in environmental remediation. This study elucidated the pathway of Cd accumulation in Tetrahymena using Cd isotope fractionation. Our results showed that Tetrahymena preferentially absorb light Cd isotopes, with Δ114/110CdTetrahymena-solution = -0.20 ± 0.02‰ ∼ - 0.29 ± 0.02‰, which implies that the intracellular Cd is probably in the form of Cd-S. The fractionation generated by Cd complexation with thiols is constant (Δ114/110CdTetrahymena-remaining solution ∼ -0.28 ± 0.02‰), which is not affected by the concentrations of Cd in intracellular and culture medium, nor by the physiological changes in cells. Furthermore, the detoxification process of Tetrahymena results in an increase in cellular Cd accumulation from 11.7% to 23.3% with the elevated Cd concentrations in batch Cd stress culture experiments. This study highlights the promising application of Cd isotope fractionation in Tetrahymena for the remediation of heavy metal pollution in water.
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Affiliation(s)
- Ruirui Wang
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zhiqiang Zhu
- Hefei National Research Center for Physical Sciences at the Microscale, MOE Key Laboratory of Cellular Dynamics, School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230027, China
| | - Wenhan Cheng
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China; College of Resources and Environment, Anhui Agriculture University, Hefei, Anhui 230036, China
| | - Chuanyu Chang
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiaoyuan Song
- Hefei National Research Center for Physical Sciences at the Microscale, MOE Key Laboratory of Cellular Dynamics, School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230027, China.
| | - Fang Huang
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China; CAS Center for Excellence in Comparative Planetology, University of Science and Technology of China, Hefei, Anhui 230026, China.
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6
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Li Y, Gao C, Shuai K, Hashan D, Liu J, She D. Performance and mechanism of starch-based porous carbon capture of Cr(VI) from water. Int J Biol Macromol 2023; 241:124597. [PMID: 37116837 DOI: 10.1016/j.ijbiomac.2023.124597] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/18/2023] [Accepted: 04/21/2023] [Indexed: 04/30/2023]
Abstract
Cr(VI) pollution has seriously affected the survival of biological organisms and humans, so reducing the harm of Cr(VI) pollution is a significant scientific goal. Natural starch exhibits a low adsorption capacity for Cr(VI); thus, physical or chemical modification is needed to improve the adsorption and regeneration performance of starch. In this study, a novel starch-based porous carbon (SPC) was prepared to remove Cr(VI) from water by using soluble starch as a raw material. The characterization results show that the SPC shows a ratio surface area of 1325.39 m2/g. Kinetics suggest that the adsorption of Cr(VI) on SPC is dominated by chemisorption. The isotherm data demonstrated that the adsorption of Cr(VI) by SPC adhered to the Freundlich model. SPC exhibits a multimolecular layer adsorption structure, and the highest amount of adsorbed Cr(VI) in SPC was 777.89 mg/g (25 °C). Ion competition experiments show that SPC exhibits significant selectivity for Cr(VI) adsorption. In addition, the adsorption cycle experiment shows that SPC maintains a 63 % removal rate after 7 cycles. In this study, starch was transformed into high-quality adsorbent materials by hydrothermal and activation strategies, offering a new innovation for the optimization of starch-based adsorbents.
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Affiliation(s)
- Yanyang Li
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Chunli Gao
- Institute of Soil and Water Conservation, Northwest A&F University, Yangling 712100, China
| | - Kewei Shuai
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Dana Hashan
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Jing Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China.
| | - Diao She
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling 712100, China; Institute of Soil and Water Conservation CAS&MWR, Yangling 712100, China.
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7
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Islam MM, Mohana AA, Rahman MA, Rahman M, Naidu R, Rahman MM. A Comprehensive Review of the Current Progress of Chromium Removal Methods from Aqueous Solution. TOXICS 2023; 11:toxics11030252. [PMID: 36977017 PMCID: PMC10053122 DOI: 10.3390/toxics11030252] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 03/01/2023] [Accepted: 03/03/2023] [Indexed: 06/01/2023]
Abstract
Chromium (Cr) exists in aqueous solution as trivalent (Cr3+) and hexavalent (Cr6+) forms. Cr3+ is an essential trace element while Cr6+ is a dangerous and carcinogenic element, which is of great concern globally due to its extensive applications in various industrial processes such as textiles, manufacturing of inks, dyes, paints, and pigments, electroplating, stainless steel, leather, tanning, and wood preservation, among others. Cr3+ in wastewater can be transformed into Cr6+ when it enters the environment. Therefore, research on Cr remediation from water has attracted much attention recently. A number of methods such as adsorption, electrochemical treatment, physico-chemical methods, biological removal, and membrane filtration have been devised for efficient Cr removal from water. This review comprehensively demonstrated the Cr removal technologies in the literature to date. The advantages and disadvantages of Cr removal methods were also described. Future research directions are suggested and provide the application of adsorbents for Cr removal from waters.
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Affiliation(s)
- Md. Monjurul Islam
- Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, Islamic University, Kushtia 7003, Bangladesh
| | - Anika Amir Mohana
- Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, Islamic University, Kushtia 7003, Bangladesh
| | - Md. Aminur Rahman
- Global Centre for Environmental Remediation (GCER), College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
- Zonal Laboratory, Department of Public Health Engineering (DPHE), Jashore 7400, Bangladesh
| | - Mahbubur Rahman
- Chittagong University of Engineering and Technology, Faculty of Civil Engineering, Chattogram 4349, Bangladesh
| | - Ravi Naidu
- Global Centre for Environmental Remediation (GCER), College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
- CRC for Contamination Assessment and Remediation of the Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Mohammad Mahmudur Rahman
- Global Centre for Environmental Remediation (GCER), College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
- CRC for Contamination Assessment and Remediation of the Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
- Department of General Educational Development, Faculty of Science & Information Technology, Daffodil International University, Dhaka 1207, Bangladesh
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Kozaderova O. Chromium-Modified Heterogeneous Bipolar Membrane: Structure, Characteristics, and Practical Application in Electrodialysis. MEMBRANES 2023; 13:172. [PMID: 36837675 PMCID: PMC9965110 DOI: 10.3390/membranes13020172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 01/15/2023] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
The modification of an MB-2 bipolar ion exchange membrane with chromium (III) hydroxide was carried out by a chemical method, namely, by the sequential treatment of the membrane with a solution of chromium (III) salt and alkali. Data on the morphology, phase, and chemical composition of the modified membrane were obtained using scanning electron microscopy and energy-dispersive analysis. In particular, it was shown that the modifier was distributed in a layer 30-50 microns thick at the boundary of the cation- and anion-exchange layers of the bipolar membrane. The electrochemical behavior of the modified membrane in the process of sodium sulfate conversion was studied by measurements of the following characteristics: the current efficiency of the acid and base, the energy consumption of the process, and the degree of contamination of the target products with salt ions. It was shown that the resulting membrane has an alkali and acid yield of 61% and 57%, respectively. This is higher than the same yields for the industrial unmodified MB-2 membrane (38% and 30%). The results of this study demonstrated that the modified samples allowed obtaining a higher yield of acid and base, reducing the content of salt ions in the target products and also reducing the electricity consumption for obtaining a unit of the target product. The concentration dependences of the electrical conductivity of the MK-40 heterogeneous ion-exchange membrane, which is a cation-exchange layer of MB-2, in sodium sulfate solutions before and after its modification with chromium (III) oxide were obtained. A decrease in the specific electrical conductivity of the membrane with the introduction of a modifier was established. A quantitative assessment of the influence of the modifier on the current flow, volume fraction, and spatial orientation of the conductive phases of MK-40 was carried out using an extended three-wire model for the description of the model parameters of ion-exchange materials. When a modifying additive was introduced into MK-40, the fraction of the current passing through the inner solution and the intergel phase decreased. This was due to the substitution of part of the free solution in the pore volume by the modifier. A variant of the practical application of electrodialysis with the chromium-modified bipolar ion-exchange membranes is recommended.
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Affiliation(s)
- Olga Kozaderova
- Faculty of Chemistry, Voronezh State University, 394018 Voronezh, Russia;
- Faculty of Ecology and Chemical Technology, Voronezh State University of Engineering Technologies, 394036 Voronezh, Russia
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Ghosh S, Othmani A, Malloum A, Ke Christ O, Onyeaka H, AlKafaas SS, Nnaji ND, Bornman C, Al-Sharify ZT, Ahmadi S, Dehghani MH, Mubarak NM, Tyagi I, Karri RR, Koduru JR, Suhas. Removal of mercury from industrial effluents by adsorption and advanced oxidation processes: A comprehensive review. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120491] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Gómez-Carnota D, Barriada JL, Herrero R. Towards the Development of Sustainable Hybrid Materials to Achieve High Cr(VI) Removals in a One-Pot Process. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12223952. [PMID: 36432238 PMCID: PMC9693857 DOI: 10.3390/nano12223952] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/03/2022] [Accepted: 11/04/2022] [Indexed: 06/01/2023]
Abstract
Rising manufacturing costs resulting from the current global situation make it necessary to economize at all stages of production, including waste management. Cost-effective materials that reduce the release of pollutants into the environment are becoming mandatory. In this work, a sodium silicate polymeric material, functionalized with iron, was synthesized. The material contains iron-rich nanostructures on the surface, which are responsible for the decontamination process. The inorganic material was further treated with a reducing eucalyptus extract to improve its decontamination performance. Both the inorganic and hybrid materials were used for decontamination of Cr(VI), a widely emitted chemical waste product. The hybrid material provided the best results (1.7 g Cr(VI)·g-1 Fe) in a one-pot process combining reduction and adsorption. The Langmuir-Freundlich model and a statistical thermodynamics adsorption model, together with removal rates, were used to study the processes. High adsorption energies were found, especially in the adsorption of Fe(II) on the polymeric base (33.2 kJ∙mol-1). All materials were characterized using SEM, EDS and N2 sorption, TGA, and IR analyses. In conclusion, the hybrid material synthesized in this study is cheap and easy to produce through environmentally friendly synthesis, and it is a promising adsorbent for the prevention of pollution issues in effluent discharges.
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11
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Quantitative Analysis of the Research Development Status and Trends of Tannery Wastewater Treatment Technology. Catalysts 2022. [DOI: 10.3390/catal12111317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In order to better grasp the development and trends of tannery wastewater (TWW) treatment research, this paper provides a review of the TWW treatment research dynamics based on the Web of Science (WoS) database and using CiteSpace software. The research dynamics, hot topics, evolutionary history and research trends in this field are revealed. The results showed that research related to TWW treatment has shown a high growth trend in the number of articles in recent years, and India was outstanding in terms of influence in this area. The keyword clustering analysis showed that the main research hotspots in the field of TWW treatment were biological treatment processes (phytoremediation, constructed wetlands, anaerobic treatment and biofilm reactors) and chemical treatment processes (coagulation and flocculation, and advanced oxidation processes). The analysis of new research frontiers showed that the bioremediation and the application of biofuel cells in TWW will become important research directions in the future.
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12
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Removal of Cr(III) from Aqueous Solution Using Labeo rohita Chitosan-Based Composite. ADSORPT SCI TECHNOL 2022. [DOI: 10.1155/2022/5395720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
This study focusses on the synthesis of chitosan-cellulose composite membrane derived from Labeo rohita fish scales (FS) for the removal of Cr(III) from aqueous solution, while chromium is a serious threat to groundwater. Waste FS are valorized to chitosan by demineralization, deproteination, and deacetylation successively. Cellulose was extracted from sugarcane bagasse using acidic hydrolysis. Chitosan-based cellulose composite porous membrane was fabricated by evaporating solvent from polymer solution in petri dish. The impact of pH, contact time, and absorbent dosage on the removal of Cr(III) from an aqueous solution was investigated. Atomic absorption spectrophotometer was used to check the Cr(III). Results showed that chitosan comprising 85% degree of deacetylation was achieved by alkali treatment, while yield was 22%. FTIR analysis confirmed the chitosan and chitosan-cellulose-based composite membrane. Morphology studies showed that the cellulose was strongly staggered and due to the chitosan, the surface of cellulose became rougher, which is good to enhance the adsorption capacity. The maximum removal 57% of Cr(III) from aqueous solution was observed at pH 6 at 60 min and 50 mg dosage of adsorbent. The minimum removal (47%) of Cr (III) was found at pH 2. These results confer that Labeo rohita-based chitosan-cellulose composite membrane has great potential for the removal of metals from industrial effluents.
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13
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Wan Nafi A, Taseidifar M. Removal of hazardous ions from aqueous solutions: Current methods, with a focus on green ion flotation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 319:115666. [PMID: 35849932 DOI: 10.1016/j.jenvman.2022.115666] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 06/20/2022] [Accepted: 07/01/2022] [Indexed: 06/15/2023]
Abstract
Hazardous ions, like those of heavy metals, cause significant health and environmental problems when they are discharged into water resources naturally or through various industrial processes. Removing these ions from water is of significant importance in the provision of high-quality water for drinking and agricultural usage. This work discusses current techniques that are frequently used for the removal of heavy-metal ions from aqueous solutions by absorption, particularly the use of biodegradable surfactants in ion flotation. Certain new surfactants promise high efficiency in their use in the ion-flotation process and in their application in industrial-water treatment to remove heavy metals. As an example, this work demonstrates the high efficiency of surfactants based on an amino-acid (L-cysteine) in removing a range of heavy-metal ions in a simple, single-stage ion-flotation process. High foaming ability, the ability to operate in various temperatures and pHs, decomposing into natural products and high binding affinity for heavy-metal ions make the cysteine-based surfactants a highly suitable compound to replace current commercial surfactants in ion- and froth-flotation processes. Removal of particular ions can also be achieved in ion flotation; a suitable choice of parameters, such as pH and surfactant concentration, favours the surfactant binding to those ions. Further intensive work is required to develop an optimal process to recover valuable elements from waste solutions.
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Affiliation(s)
- Atikah Wan Nafi
- School of Science, UNSW Canberra, Canberra, ACT, 2610, Australia
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14
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Synthesis of Amidoxime Adsorbent by Radiation-Induced Grafting of Acrylonitrile/Acrylic Acid on Polyethylene Film and Its Application in Pb Removal. Polymers (Basel) 2022; 14:polym14153136. [PMID: 35956653 PMCID: PMC9370772 DOI: 10.3390/polym14153136] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 07/11/2022] [Accepted: 07/13/2022] [Indexed: 02/04/2023] Open
Abstract
In the aquatic environment, heavy metals such as lead ions Pb (II) are of particular importance. These are due to Pb (II) being toxic at concentrations over 0.01 mg/L, when taken continuously over an extended length of time. Organs including the heart, gut, and kidneys are seriously harmed by Pb (II) intoxication. The neurological, reproductive, and bone systems are also affected. The removal of Pb (II) from aquatic environments is, therefore, crucial. Low density Polyethylene (LDPE) is grafted by radiation with Acrylonitrile and acrylic acid (PE-g-AN/AAc) for the adsorption of Pb (II). Factors that control the grafting process for optimum conditions, such as the effect of solvents, the air atmosphere, inhibitors, comonomer concentration, and composition and irradiation dose, are studied to obtain a high grafting yield without homopolymer formation and a higher water uptake. The results showed that the addition of 2.5% by wt% ferric chloride salt effectively inhibits homoploymerization of a mixture of 30% methanol and 70% H2O used as a solvent in nitrogen. The highest graft yield obtained was 320% at a 25 kGy radiation dose with an 80/20 monomer composition and 60% comonomer concentration. The resulting composite films were characterized by XRD to analyze the dispersion properties of the material, SEM for the surface morphology, FTIR analysis for the functional groups, TGA, DSC for the thermal stability and elongation, and tensile strength for the mechanical properties. The uptake of Pb (II) from lead nitrate aqueous solution by (PE-g-AN/AAc) was observed under different conditions of the degree of grafting, contact time, metal ion concentration, and pH. The results obtained suggest LDPE-g-p (AN/AAc) as a superabsorbent for the Pb (II) ion’s removal from an aqueous solution.
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Pilley S, Kaur H, Hippargi G, Gonde P, Rayalu S. Silk fibroin: a promising bio-material for the treatment of heavy metal-contaminated water, adsorption isotherms, kinetics, and mechanism. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:56606-56619. [PMID: 35347600 DOI: 10.1007/s11356-022-19833-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 03/16/2022] [Indexed: 06/14/2023]
Abstract
Silk is the strongest natural biopolymer produced by silk worms possessing superior adsorbent properties and thus extensively used in various applications. The present study involved the preparation of powder form of a silk fibroin materials and their application in adsorption of heavy metals, particularly, iron from aqueous solution. The morphological and structural characteristic properties of this promising materials were examined by using different analytical techniques. Batch experiments were conducted within feasible parametric ranges to understand the effect of dose, time, concentration, pH, and reusability. Silk fibroin was effective for iron adsorption over a wide range of pH 6 to 10. The adsorption removal efficiency of 98% was attained for removal of iron from contaminated water at moderate dose of 0.25 g and contact time of 60 min, which is unprecedented by considering the environment benign nature of the material. The data was examined in different isotherm models wherein it fitted best in Langmuir adsorption model. Similarly, Langmuir isotherm model, with R2 value of 0.984 and KL 0.412 and maximum adsorption capacity as 12.82 mg g-1, suggests monolayer adsorption. Kinetic study with better R2 value of 0.941 represented the pseudo-second order kinetics governed by the chemisorption reaction. To understand the practical applicability of silk fibroin, the repeatability study up to 5 cycles were performed. The findings are very encouraging which confirmed the usage of silk fibroin as adsorbent for multiple cycles with marginal decrease in adsorption efficiency. Eventually, the material was tested for iron removal in real contaminated water which revealed its potential and selectivity for removal of iron in different matrix.
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Affiliation(s)
- Sonali Pilley
- Environmental Materials Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur, 440020, India
| | - Harkirat Kaur
- St. Aloysius Institute of Technology, Gaur, Jabalpur, 482020, India
| | - Girivyankatesh Hippargi
- Environmental Materials Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur, 440020, India.
| | - Pranjali Gonde
- Environmental Materials Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur, 440020, India
| | - Sadhana Rayalu
- Environmental Materials Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur, 440020, India
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Bashir MS, Ramzan N, Najam T, Abbas G, Gu X, Arif M, Qasim M, Bashir H, Shah SSA, Sillanpää M. Metallic nanoparticles for catalytic reduction of toxic hexavalent chromium from aqueous medium: A state-of-the-art review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 829:154475. [PMID: 35278543 DOI: 10.1016/j.scitotenv.2022.154475] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 03/03/2022] [Accepted: 03/07/2022] [Indexed: 06/14/2023]
Abstract
The ever increasing concentration of toxic and carcinogenic hexavalent chromium (Cr (VI)) in various environmental mediums including water-bodies due to anthropogenic activities with rapid civilization and industrialization have become the major issue throughout the globe during last few decades. Therefore, developing new strategies for the treatment of Cr(VI) contaminated wastewaters are in great demand and have become a topical issue in academia and industry. To date, various techniques have been used for the remediation of Cr(VI) contaminated wastewaters including solvent extraction, adsorption, catalytic reduction, membrane filtration, biological treatment, coagulation, ion exchange and photo-catalytic reduction. Among these methods, the transformation of highly toxic Cr(VI) to benign Cr(III) catalyzed by metallic nanoparticles (M-NPs) with reductant has gained increasing attention in the past few years, and is considered to be an effective approach due to the superior catalytic performance of M-NPs. Thus, it is a timely topic to review this emerging technique for Cr(VI) reduction. Herein, recent development in synthesis of M-NPs based non-supported, supported, mono-, bi- and ternary M-NPs catalysts, their characterization and performance for the reduction of Cr(VI) to Cr(III) are reviewed. The role of supporting host to stabilize the M-NPs and leading to enhance the reduction of Cr(VI) are discussed. The Cr(VI) reduction mechanism, kinetics, and factors affecting the kinetics are overviewed to collect the wealthy kinetics data. Finally, the challenges and perspective in Cr(VI) reduction catalyzed by M-NPs are proposed. We believe that this review will assist the researchers who are working to develop novel M-NPs catalysts for the reduction of Cr(VI).
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Affiliation(s)
- Muhammad Sohail Bashir
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Naveed Ramzan
- Department of Chemical Engineering, University of Engineering and Technology, Lahore 54890, Pakistan
| | - Tayyaba Najam
- Institute for Advanced Study and Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China
| | - Ghulam Abbas
- Department of Chemical Engineering, University of Gujrat, Gujrat 50700, Pakistan
| | - Xiangling Gu
- Shandong Provincial Engineering Laboratory of Novel Pharmaceutical Excipients, Sustained and Controlled Release Preparations, College of Medicine and Nursing, Dezhou University, Dezhou 253023, China
| | - Muhammad Arif
- Department of Chemical Engineering, University of Engineering & Information Technology Abu Dhabi Road, Rahim Yar Khan, 64200 Pakistan
| | - Muhammad Qasim
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Humaira Bashir
- Department of Botany, University of the Punjab, Quaid-e-Azam Campus, 54590 Lahore, Pakistan
| | - Syed Shoaib Ahmad Shah
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Mika Sillanpää
- Department of Chemical Engineering, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, P. O. Box 17011, Doornfontein 2028, South Africa; Department of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia; International Research Centre of Nanotechnology for Himalayan Sustainability (IRCNHS), Shoolini University, Solan 173212, Himachal Pradesh, India; Zhejiang Rongsheng Environmental Protection Paper Co. LTD, NO.588 East Zhennan Road, Pinghu Economic Development Zone, Zhejiang 314213, China.
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Sapmaz T, Mahboubi A, Taher MN, Beler-Baykal B, Karagunduz A, Taherzadeh MJ, Koseoglu-Imer DY. Waste-derived volatile fatty acid production and ammonium removal from it by ion exchange process with natural zeolite. Bioengineered 2022; 13:14751-14769. [PMID: 36250716 PMCID: PMC9578453 DOI: 10.1080/21655979.2022.2109507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Volatile fatty acids (VFAs) produced during anaerobic digestion (AD) of organic waste are a promising alternative carbon source for various biological processes; however, their applications are limited due to the presence of impurities such as ammonium (NH4+). This study investigates the potential for removal of ammonium using a naturally occurring zeolite (clinoptilolite) from chicken manure (CKM) derived VFA effluent recovered from an anaerobic membrane bioreactor (MBR). Experiments were conducted for both synthetic and actual VFA (AD-VFA) solutions, and the effects of different parameters were investigated with batch and continuous studies. It was observed that the Langmuir-type isotherm provided the best fit to the equilibrium data in the isotherm investigations carried out with the AD-VFA solution. The maximum adsorption capacity (qm) was found as 15.7 mg NH4+/g clinoptilolite. The effect of some operational parameters on process performance such as pH, initial NH4+ loading and potassium ion (K+) concentration was investigated. The pH had a negligible effect on ammonium removal for a pH range of 3-7, while the removal efficiency of ammonium decreased with the increase of initial NH4+ loading and K+ concentration. At the optimum conditions determined in batch experiments, the ammonium removal from synthetic and AD-VFA solutions were compared and average ammonium removal efficiencies of 93 and 94% were found in 12 h equilibrium time for synthetic and AD-VFA solutions, respectively. Overall findings indicated that clinoptilolite has excellent potential for ion exchange when combined with biological processes such as acidogenic fermentation of VFAs to purify the solution from high-ammonium content.
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Affiliation(s)
- Tugba Sapmaz
- Department of Environmental Sciences and Engineering, Istanbul Technical University, Istanbul, Turkey,Swedish Centre for Resource Recovery, University of Borås, Borås, Sweden,CONTACT Tugba Sapmaz Department of Environmental Sciences and Engineering, Istanbul Technical University, Maslak Campus 34469 Sarıyer, Istanbul, Turkey
| | - Amir Mahboubi
- Swedish Centre for Resource Recovery, University of Borås, Borås, Sweden
| | - Mustafa N. Taher
- Department of Environmental Sciences and Engineering, Istanbul Technical University, Istanbul, Turkey
| | - Bilsen Beler-Baykal
- Department of Environmental Sciences and Engineering, Istanbul Technical University, Istanbul, Turkey
| | - Ahmet Karagunduz
- Department of Environmental Engineering, Gebze Technical University, Kocaeli, Turkey
| | | | - Derya Y. Koseoglu-Imer
- Department of Environmental Sciences and Engineering, Istanbul Technical University, Istanbul, Turkey
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Kou X, Ma Y, Pan C, Huang Y, Duan Y, Yang Y. Effects of the Cationic Structure on the Adsorption Performance of Ionic Polymers toward Au(III): an Experimental and DFT Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:6116-6127. [PMID: 35512263 DOI: 10.1021/acs.langmuir.2c00482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Ionic polymers have been proven to be promising adsorbents in recovering Au(III) due to their advantages of simple synthesis and high adsorption efficiency. However, the unclarity of the relationship between the adsorption ability of ionic polymers and their cationic structures hinders further optimization of their adsorption performance. This study synthesized a series of ionic polymers with pyridinium, imidazolium, piperidinium, pyrrolidinium, and triethylammonium cations to discover the effects of the cationic structure on their adsorption properties. Experimental results show that the existence of anion-π interaction between aromatic cations and [AuCl4]- makes the aromatic cations-anion interaction stronger, which does not enhance the adsorption performance of the aromatic-based ionic polymer. This is due to the charge delocalization in the aromatic ring, resulting in a lower electrostatic potential (ESP) of aromatic cations than that of aliphatic cations with a localized charge. The higher the ESP of cations, the better the adsorption performance of the corresponding ionic polymer. This study serves as a deep understanding of the cationic structure-adsorptive performance relationship of the ionic polymer at the molecular level and further provides a theoretical guidance to optimize the adsorption performance of ionic polymers.
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Affiliation(s)
- Xin Kou
- The Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province; School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yutian Ma
- Jinchuan Group Co., Ltd., Jinchang 737100, P. R. China
| | - Congming Pan
- Jinchuan Group Co., Ltd., Jinchang 737100, P. R. China
| | - Yong Huang
- The Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province; School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yulai Duan
- Local Characteristic Resource Utilization and New Materials Key Laboratory of Universities in Yunnan; College of Science, Honghe University, Mengzi 661199, P. R. China
| | - Ying Yang
- The Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province; School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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Khalil KM, Elhamdy WA, Elsamahy AA. Biomass derived P−doped activated carbon as nanostructured mesoporous adsorbent for chromium(VI) pollutants with pronounced functional efficiency and recyclability. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128553] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Elsayed NH, Monier M, Alatawi RA, Albalawi MA, Alhawiti AS. Preparation of chromium (III) ion-imprinted polymer based on azo dye functionalized chitosan. Carbohydr Polym 2022; 284:119139. [DOI: 10.1016/j.carbpol.2022.119139] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/26/2021] [Accepted: 01/10/2022] [Indexed: 01/11/2023]
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21
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Khan AD, Ikram M, Haider A, Ul-Hamid A, Nabgan W, Haider J. Polyvinylpyrrolidone and chitosan-doped lanthanum oxide nanostructures used as anti-bacterial agents and nano-catalyst. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-022-02471-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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22
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Wu CH, Guo HR, Patel AK, Singhania RR, Chen YA, Kuo JM, Dong CD. Production and characterization of lucrative hypoglycemic collagen-peptide-chromium from tilapia scale. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.02.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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23
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Simultaneous removal of Congo red and Cr(VI) using amino-modified GO/MS composite materials. KOREAN J CHEM ENG 2022. [DOI: 10.1007/s11814-021-1031-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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24
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Advance modification of polyacrylonitrile nanofibers for enhanced removal of hexavalent chromium from water. J Appl Polym Sci 2022. [DOI: 10.1002/app.52169] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Perumal S, Atchudan R, Thirukumaran P, Yoon DH, Lee YR, Cheong IW. Simultaneous removal of heavy metal ions using carbon dots-doped hydrogel particles. CHEMOSPHERE 2022; 286:131760. [PMID: 34352536 DOI: 10.1016/j.chemosphere.2021.131760] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 06/30/2021] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
Heavy metal ions (HMI) have attracted worldwide concern due to their serious environmental pollution which led to the risk of health conditions. From Red Malus floribunda fruits, nitrogen-doped carbon dots (N-CDs) were prepared, followed by hybrid-spherical shaped hydrogel particles (CGCDs) were prepared. The prepared CGCDs were utilized as adsorbents for HMI-(Hg(II), Cd(II), Pb(II), and Cr(III)) from water. N-CDs with about 4.0 nm in diameter were characterized by various techniques such as field emission-scanning electron microscopy (FE-SEM) and attenuated total reflection-fourier transform infrared spectroscopy (ATR-FTIR) that confirm the presence of nitrogen, oxygen, and carbon functionalities. The prepared spherical CGCDs were characterized very well before it was used as HMI adsorbents. The sizes of the CGCDs were ranges between 20 and 300 μm and the degree of swelling was calculated as 1320 %. ATR-FTIR and X-ray diffraction analyses reveal the presence of N-CDs in CGCDs. Further, FE-SEM confirms the spherical shape morphology of CGCDs. Three different concentrations of HMI solutions were 500 mg/L, 1000 mg/L, and 1500 mg/L. Hg(II) adsorbed proficiently by CGCDs in single metal ion systems with ~72 % and almost complete removal of Hg(II) ions (99 %) in multiple metal ion systems was observed. Moreover, all metal ions Hg(II), Cd(II), Pb(II), and Cr(III) were efficiently (>70 %) removed in multiple systems by CGCDs. After HMI adsorption experiments, the elemental mapping from FE-SEM and X-ray photoelectron spectroscopy studies conveys the presence of HMI on CGCDs. This suggests that CGCDs would be a suitable adsorbent for the simultaneous removal of multiple HMI from wastewater.
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Affiliation(s)
- Suguna Perumal
- Department of Applied Chemistry, School of Engineering, Kyungpook National University, Buk-gu, Daehak-ro 80, Daegu, 41566, Republic of Korea; School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Raji Atchudan
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | | | - Dong Ho Yoon
- R& D Center, Kuk-Il Paper Mfg. Co., Ltd., Baekok-daero 563, Cheoin-gu, Yongin, 17128, Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
| | - In Woo Cheong
- Department of Applied Chemistry, School of Engineering, Kyungpook National University, Buk-gu, Daehak-ro 80, Daegu, 41566, Republic of Korea.
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Zhou S, Zhou Z, Zhu D, Jiang H, Qi Y, Wang S, Jia Y, Wang W. Preparation of covalent triazine-based framework for efficient Cr(VI) removal from water. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.127757] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Das TK, Poater A. Review on the Use of Heavy Metal Deposits from Water Treatment Waste towards Catalytic Chemical Syntheses. Int J Mol Sci 2021; 22:13383. [PMID: 34948184 PMCID: PMC8706456 DOI: 10.3390/ijms222413383] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 12/03/2021] [Accepted: 12/06/2021] [Indexed: 12/27/2022] Open
Abstract
The toxicity and persistence of heavy metals has become a serious problem for humans. These heavy metals accumulate mainly in wastewater from various industries' discharged effluents. The recent trends in research are now focused not only on the removal efficiency of toxic metal particles, but also on their effective reuse as catalysts. This review discusses the types of heavy metals obtained from wastewater and their recovery through commonly practiced physico-chemical pathways. In addition, it covers the advantages of the new system for capturing heavy metals from wastewater, as compared to older conventional technologies. The discussion also includes the various structural aspects of trapping systems and their hypothesized mechanistic approaches to immobilization and further rejuvenation of catalysts. Finally, it concludes with the challenges and future prospects of this research to help protect the ecosystem.
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Affiliation(s)
- Tushar Kanti Das
- Rubber Technology Centre, Indian Institute of Technology Kharagpur, Kharagpur 721302, India;
| | - Albert Poater
- Institute of Computational Chemistry and Catalysis, Department of Chemistry, University of Girona, c/Maria Aurèlia Capmany 69, 17003 Girona, Spain
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Application of Modern Research Methods for the Physicochemical Characterization of Ion Exchangers. MATERIALS 2021; 14:ma14227067. [PMID: 34832465 PMCID: PMC8618929 DOI: 10.3390/ma14227067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/15/2021] [Accepted: 11/17/2021] [Indexed: 12/16/2022]
Abstract
Ion exchange technique as the reversible exchange of ions between the substrate and the surrounding medium can be an effective way of removing traces of ion impurities from the waters and wastewaters and obtaining a product of ultrapure quality. Therefore, it can be used in analytical chemistry, hydrometallurgy, purification and separation of metal ions, radioisotopes and organic compounds, and it also finds great application in water treatment and pollution control. In the presented paper, the new trends for ion exchanger characteristics determination and application are presented. Special attention is paid to the ion exchangers with multifunctionality for heavy metal ions removal. They show superior actions such as sorption capacity values with excellent resistance to fouling and the possibility of application in the co-current or modern packed bed counter-current systems, as well as for the condensate polishing or the conventional mixed bed systems in combination with other resins. The results of the paper are expected to help researchers to establish a powerful strategy to find a suitable ion exchanger for heavy metal ions removal from waters and wastewaters. It is important because the best ion exchangers are selected for a specific application during laboratory tests taking into account the composition of the feed solution, pH, type of ion exchangers and then the column breakthrough tests. Therefore, the optical profilometry and the X-ray photoelectron spectroscopy can prove beneficial for this purpose in the case of three different ion exchangers such as Dowex M 4195, Amberlite IRA 743 and Purolite Arsen Xnp.
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Selective adsorption behavior of ion-imprinted magnetic chitosan beads for removal of Cu(II) ions from aqueous solution. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.09.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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31
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Sahu A, Rane NV, Lodaya BG, Pandit AB. Green synthesis and kinetic study of eco-friendly chelating agent by hydrothermal process for remediation of heavy metals. Chem Ind 2021. [DOI: 10.1080/00194506.2021.1965039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Abha Sahu
- Chemical Engineering Department, Institute of Chemical Technology, Mumbai, India
| | - Nilesh Vijay Rane
- Chemical Engineering Department, Institute of Chemical Technology, Mumbai, India
| | - Badal G. Lodaya
- Chemical Engineering Department, Institute of Chemical Technology, Mumbai, India
| | - Aniruddha B. Pandit
- Chemical Engineering Department, Institute of Chemical Technology, Mumbai, India
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Kumar S, Balouch A, Alveroğlu E, Jagirani MS, Mughal MA, Mal D. Fabrication of nickel-tagged magnetic imprinted polymeric network for the selective extraction of Ni(II) from the real aqueous samples. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:40022-40034. [PMID: 33770354 DOI: 10.1007/s11356-021-13375-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 03/05/2021] [Indexed: 06/12/2023]
Abstract
A new nickel ion, magnetic imprinted polymer was fabricated through the precipitation polymerization process, using amine-functionalized silica-capped iron oxide particles as a core material, and 4-vinyl pyridine as complexing agent methacrylic acid as functional monomer. The resulted magnetic adsorbent was employed to eliminate toxic Ni2+ ions from industrial wastewater. The different parameters were optimized, such as pH, shaking speed, and adsorbent dose, to obtain the maximum adsorption capacity. The synthesized material showed high selectivity coefficient for Ni+2 ions in the presence of other competitive ions and followed pseudo-second-order kinetics and Langmuir isotherm. A good adsorption capacity of 158.73 mg g-1 was obtained at optimized pH 6 in the concentration of 5 mg L-1 nickel ions aqueous solution. The limit of detection, quantification, and the percent relative standard deviation was found to be 0.58, 1.93, and 3.4%. This proves the excellent performance of prepared magnetic Ni(II) ion-imprinted polymer for selective detoxification of Ni2+ ions from real aqueous samples. Due to tunable magnetic properties, the prepared MMIPs are highly selective and sensitive and highly porous in nature; due to excellent magnetic properties, there is no need for centrifugation. Just use external magnetic field, it has good reusability. Showing preparation of Ni (II) imprinted magnetic polymer.
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Affiliation(s)
- Sagar Kumar
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Sindh, 76080, Pakistan
| | - Aamna Balouch
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Sindh, 76080, Pakistan.
- Faculty of Science and Letters, Department of Physics Engineering, Istanbul Technical University, Maslak, 34467 Sariyer, Istanbul, Turkey.
| | - Esra Alveroğlu
- Faculty of Science and Letters, Department of Physics Engineering, Istanbul Technical University, Maslak, 34467 Sariyer, Istanbul, Turkey
| | - Muhammad Saqaf Jagirani
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Sindh, 76080, Pakistan
| | - Moina Akhtar Mughal
- Dr. M.A. Kazi Institute of Chemistry University of Sindh, Jamshoro, Sindh, 76080, Pakistan
| | - Dadu Mal
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Sindh, 76080, Pakistan
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Orooji Y, Nezafat Z, Nasrollahzadeh M, Kamali TA. Polysaccharide-based (nano)materials for Cr(VI) removal. Int J Biol Macromol 2021; 188:950-973. [PMID: 34343587 DOI: 10.1016/j.ijbiomac.2021.07.182] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 07/20/2021] [Accepted: 07/27/2021] [Indexed: 01/13/2023]
Abstract
Chromium is a potentially poisonous and carcinogenic species, which originates from human activities and various industries such as leather, steel, iron, and electroplating industries. Chromium is present in various oxidation states, among which hexavalent chromium (Cr(VI)) is highly toxic as a natural contaminant. Therefore, chromium, particularly Cr(VI), must be eliminated from the environment, soil, and water to overcome significant problems due to its accumulation in the environment. There are different approaches such as adsorption, ion exchange, photocatalytic reduction, etc. for removing Cr(VI) from the environment. By converting Cr(VI) to Cr(III), its toxicity is reduced. Cr(III) is essential for the human diet, even in small amounts. Today, biopolymers such as alginate, cellulose, gum, pectin, starch, chitin, and chitosan have received much attention for the removal of environmental pollutants. Biopolymers, particularly polysaccharides, are very useful compounds due to their OH and NH2 functional groups and some advantages such as biodegradability, biocompatibility, and accessibility. Therefore, they can be widely applied in catalytic applications and as efficient adsorbents for the removal of toxic compounds from the environment. This review briefly investigates the application of polysaccharide-based (nano)materials for efficient Cr(VI) removal from the environment using adsorption/reduction, photocatalytic, and chemical reduction mechanisms.
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Affiliation(s)
- Yasin Orooji
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
| | - Zahra Nezafat
- Department of Chemistry, Faculty of Science, University of Qom, Qom 37185-359, Iran
| | | | - Taghi A Kamali
- Department of Chemistry, Faculty of Science, University of Qom, Qom 37185-359, Iran
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Recent advances in removal techniques of Cr(VI) toxic ion from aqueous solution: A comprehensive review. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115062] [Citation(s) in RCA: 175] [Impact Index Per Article: 58.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Multiferroic BiFeO3 dithizone functionalized as optical sensor for detection and determination of some heavy metals in environmental samples. BULLETIN OF MATERIALS SCIENCE 2021. [DOI: 10.1007/s12034-021-02396-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Synthesis, characterization and analytical applications of Ni(II) ion-imprinted polymer prepared by N-(2-hydroxyphenyl)acrylamide. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02542-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Mahmoud ME, El-Sharkawy RM, Ibrahim GAA. Promoted adsorptive removal of chromium(vi) ions from water by a green-synthesized hybrid magnetic nanocomposite (NFe 3O 4Starch-Glu-NFe 3O 4ED). RSC Adv 2021; 11:14829-14843. [PMID: 35424003 PMCID: PMC8697855 DOI: 10.1039/d1ra00961c] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/28/2021] [Indexed: 12/23/2022] Open
Abstract
A novel magnetic starch-crosslinked-magnetic ethylenediamine nanocomposite, NFe3O4Starch-Glu-NFe3O4ED, was synthesized via microwave irradiation. The characteristics of the assembled NFe3O4Starch-Glu-NFe3O4ED nanocomposite were evaluated via XRD, FT-IR, TGA, BET, SEM and HR-TEM analyses. Its particle size was confirmed to be in the range 11.25-17.16 nm. The effectiveness of the designed nanocomposite for the removal of Cr(vi) ions was explored using the batch adsorption technique. Equilibrium results proved that the adsorptive removal of the target metal ions from aqueous solution was highly dependent on the optimized experimental parameters. The maximum adsorptive removal percentage values (%R) of Cr(vi) ions on NFe3O4Starch-Glu-NFe3O4ED obtained at pH 2.0 were 85.27%, 91.90%, and 96.47% using 10.0, 25.0, and 50.0 mg L-1 Cr(vi), respectively, for an equilibrium time of 30 min. The adsorption process was found to be strongly influenced by the presence of interfering salts including NaCl, CaCl2, KCl, MgCl2, and NH4Cl. Kinetic studies were performed and it was found that the pseudo-second and Elovich models well fitted the experimental data with the possible suggested ion-pair interaction mechanism. Different isotherm models were employed to assess the adsorption equilibrium, which was revealed by fitting Langmuir, Temkin and Freundlich models. The maximum uptake capacity based on the Langmuir model was 210.741 mg g-1. The effect of temperature and thermodynamics confirmed that adsorption was spontaneous, feasible, and endothermic in nature. Finally, the validity and applicability of using the NFe3O4Starch-Glu-NFe3O4ED nanocomposite to remove Cr(vi) ions from real water matrices were confirmed in the range of 91.2-94.7 ± 2.2-3.7%.
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Affiliation(s)
- Mohamed E Mahmoud
- Faculty of Science, Chemistry Department, Alexandria University P.O. Box 426, Ibrahimia 21321 Alexandria Egypt
| | - Rehab M El-Sharkawy
- Faculty of Dentistry, Chemistry Department, Pharos University in Alexandria P.O. Box 37, SidiGaber Alexandria Egypt +20-1229727752
| | - Ghada A A Ibrahim
- Faculty of Education, Chemistry and Physics Department, Alexandria University El-Shatby Alexandria Egypt
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Ziaee F, Ziaee M, Taseidifar M. Synthesis and application of a green surfactant for the treatment of water containing PFAS/ hazardous metal ions. JOURNAL OF HAZARDOUS MATERIALS 2021; 407:124800. [PMID: 33359975 DOI: 10.1016/j.jhazmat.2020.124800] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 12/04/2020] [Accepted: 12/05/2020] [Indexed: 06/12/2023]
Abstract
In this work, the effectiveness of a biodegradable and natural surfactant synthesized through a novel method has been studied through the ion flotation process to treat waters containing Per/Poly Fluoroalkyl Substances (PFAS) and heavy-metal ions. This cysteine-based surfactant, which is environmentally acceptable, showed considerable solubility and foaming ability over a wide range of pH. It also could remove 97-99(%) of 5 mg/L of cadmium, chromium, copper, nickel, zinc, and manganese ions in a single batch physicochemical process. Moreover, for the first time, a foam fractionation method in association with using this cysteine-based surfactant was applied for perfluorooctanoic acid (PFOA) removal from water. This surfactant was used as a co-surfactant and could readily remove 72% of PFOA (40 mg/L) from water. The characterization of the surfactant was undertaken using 1H NMR, FT-IR, elemental analysis, melting point, and determination of its critical micelle concentration (CMC). This environmentally friendly surfactant has high potential applications in green chemistry especially in the treatment of waters contaminated with PFAS/heavy-metal ions.
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Affiliation(s)
- Farzaneh Ziaee
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Mohammad Ziaee
- School of Science, UNSW Canberra, Northcott Drive, Canberra, ACT 2610, Australia.
| | - Mojtaba Taseidifar
- School of Science, UNSW Canberra, Northcott Drive, Canberra, ACT 2610, Australia
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Shaikh SH, Kumar SA, Songire PP, Sounderajan S. Titanium dioxide, layered hydrazinium titanate and eggshell as potential sorbents for remediation of chromium from aqueous stream. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2020.1742159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Samina H. Shaikh
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India
- Homi Bhabha National Institute, Bhabha Atomic Research Centre, Mumbai, India
| | - Sanjukta A. Kumar
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India
- Homi Bhabha National Institute, Bhabha Atomic Research Centre, Mumbai, India
| | - Pallavi P. Songire
- Process Development Division, Bhabha Atomic Research Centre, Mumbai, India
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Shivalkar S, Gautam PK, Chaudhary S, Samanta SK, Sahoo AK. Recent development of autonomously driven micro/nanobots for efficient treatment of polluted water. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 281:111750. [PMID: 33434762 DOI: 10.1016/j.jenvman.2020.111750] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 11/20/2020] [Accepted: 11/24/2020] [Indexed: 06/12/2023]
Abstract
Autonomously propelled micro/nanobots are one of the most advanced and integrated structures which have been fascinated researchers owing to its exceptional property that enables them to be carried out user-defined tasks more precisely even on an atomic scale. The unique architecture and engineering aspects of these manmade tiny devices make them viable options for widespread biomedical applications. Moreover, recent development in this line of interest demonstrated that micro/nanobots would be very promising for the water treatment as these can efficiently absorb or degrade the toxic chemicals from the polluted water based on their tunable surface chemistry. These auto propelled micro/nanobots catalytically degrade toxic pollutants into non-hazardous compounds more rapidly and effectively. Thus, for the last few decades, nanobots mediated water treatment gaining huge popularity due to its ease of operation and scope of guided motion that could be monitored by various external fields and stimuli. Also, these are economical, energy-saving, and suitable for large scale water treatment, particularly required for industrial effluents. However, the efficacy of these bots hugely relies on its design, characteristic of materials, properties of the medium, types of fuel, and surface functional groups. Minute variation for one of these things may lead to a change in its performance and hinders its dynamics of propulsion. It is deemed that nanobots might be a smart choice for using these as the new generation devices for treating industrial effluents before discharging it in the water bodies, which is a major concern for human health and the environment.
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Affiliation(s)
- Saurabh Shivalkar
- Department of Applied Sciences, Indian Institute of Information Technology Allahabad, Devghat, Prayagraj, UP, 211015, India
| | - Pavan Kumar Gautam
- Department of Applied Sciences, Indian Institute of Information Technology Allahabad, Devghat, Prayagraj, UP, 211015, India
| | - Shrutika Chaudhary
- Department of Biotechnology, Integral University, Lucknow, UP, 226026, India
| | - Sintu Kumar Samanta
- Department of Applied Sciences, Indian Institute of Information Technology Allahabad, Devghat, Prayagraj, UP, 211015, India.
| | - Amaresh Kumar Sahoo
- Department of Applied Sciences, Indian Institute of Information Technology Allahabad, Devghat, Prayagraj, UP, 211015, India.
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41
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Wang J, Chen Y, Sun T, Saleem A, Wang C. Enhanced removal of Cr(III)-EDTA chelates from high-salinity water by ternary complex formation on DETA functionalized magnetic carbon-based adsorbents. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 209:111858. [PMID: 33385680 DOI: 10.1016/j.ecoenv.2020.111858] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 12/03/2020] [Accepted: 12/22/2020] [Indexed: 06/12/2023]
Abstract
A novel amino-functionalized magnetic adsorbent (Fe3O4@C@DETA) was developed for adsorption of Cr(III) and Cr(III)-EDTA from wastewater. Fe3O4@C@DETA were successfully prepared by modification of Fe3O4@C with diethylenediamine (DETA), which exhibits a core-shell structure and sufficient saturation magnetization. Fe3O4@C@DETA exhibits much better adsorption performance for Cr(III) and its chelates than the Fe3O4@C because of newly introduced amino active sites. The enhanced adsorption capacity of Fe3O4@C@DETA for Cr(III) is 44.74 mg g-1 (at 25 °C and pH 3.0), which is due to the surface coordination with the newly introduced amino functional sites. The Cr(III)-EDTA anions as a whole was adsorbed through the electrostatic interaction with protonated amino species of the Fe3O4@C@DETA and have maximum adsorption capacity of 47.27 mg g-1 (at 25 °C and pH 3.0). The adsorption data of free and EDTA coordinated Cr(III) were followed the Langmuir equation, while the adsorption dynamics was well explained by pseudo second order model indicating the chemical nature of adsorption process. The higher concentration of Ca2+ ions in the wastewater compete for adsorption sites and inhibit the Cr(III) removal, while on other hand Ca2+ ions promotes the adsorption of Cr(III)-EDTA, because of electrostatic interaction with adsorbent active sits. Furthermore, the adsorbent can be easily separated by external magnetic field and regenerated in acidic solution. The adsorbent is stable, recyclable and have more than 75% regeneration efficiency and can be repeatedly used in the adsorption process.
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Affiliation(s)
- Jiahong Wang
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China; Shaanxi Key Laboratory of Green Preparation and Functionalization of Inorganic Materials, Xi'an 710021, China.
| | - Yao Chen
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China; Shaanxi Key Laboratory of Green Preparation and Functionalization of Inorganic Materials, Xi'an 710021, China.
| | - Tongtong Sun
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China; Shaanxi Key Laboratory of Green Preparation and Functionalization of Inorganic Materials, Xi'an 710021, China.
| | - Atif Saleem
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China; Shaanxi Key Laboratory of Green Preparation and Functionalization of Inorganic Materials, Xi'an 710021, China.
| | - Chuanyi Wang
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China; Shaanxi Key Laboratory of Green Preparation and Functionalization of Inorganic Materials, Xi'an 710021, China.
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42
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Li Q, Yang D, Yang Y. Spectrofluorimetric determination of Cr(VI) and Cr(III) by quenching effect of Cr(III) based on the Cu-CDs with peroxidase-mimicking activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 244:118882. [PMID: 32919158 DOI: 10.1016/j.saa.2020.118882] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 08/15/2020] [Accepted: 08/23/2020] [Indexed: 06/11/2023]
Abstract
The study presents a spectrofluorimetric method for the determination of Cr(III) based on 2,3-diaminophenazine (DAP) as fluorescent nano sensor. With the peroxidase-mimicking activity of copper-doped carbon dots (Cu-CDs), colorless o-phenylenediamine (OPD) was oxidized to fluorescent DAP in the presence of H2O2 via generation of hydroxyl radicals. The Cr(III) was found to decrease the fluorescent intensity of the Cu-CDs-mediated OPD oxidation system. Cr(VI) species were reduced to Cr(III) by employing 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonate) (ABTS) as the reductant, and a novel spectrofluorimetric method for the highly sensitive detection of speciation Cr(VI) and Cr(III) was developed. The Cu-CDs nanozyme was prepared from ethylenediaminetetraacetic acid copper disodium salt (Na2[Cu (EDTA)]) by one-step pyrolysis method. Under optimal conditions, the fluorescence intensity of DAP is linearly proportional to the Cr(III) ion concentration in the range of 5 × 10-6 to 1.5 × 10-4 mol L-1 and the detection limit is 1.2 × 10-7 mol L-1. The method has a good anti-interference performance against some metal ions, such as, Hg2+, Co2+, Cu2+, Mg2+, Ba2+, K+, Mn2+, Ni2+, Al3+, and Fe3+. The proposed method was successfully applied in the determination of Cr(VI) and Cr(III) in water samples.
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Affiliation(s)
- Qiulan Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Dezhi Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Yaling Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan 650500, China.
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Zhu F, Zheng YM, Zhang BG, Dai YR. A critical review on the electrospun nanofibrous membranes for the adsorption of heavy metals in water treatment. JOURNAL OF HAZARDOUS MATERIALS 2021; 401:123608. [PMID: 33113718 DOI: 10.1016/j.jhazmat.2020.123608] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/26/2020] [Accepted: 07/27/2020] [Indexed: 06/11/2023]
Abstract
Electrospun nanofibrous membranes (ENFMs) have many superior advantages, such as large specific surface area, high porosity, easy modification, good flexibility, and easy separation for recycling, which are consider as excellent adsorbents. In this paper, the research progress in the adsorption of heavy metals in water treatment by ENFMs is reviewed. Three types of ENFMs, including organic polymer ENFMs, organic polymer/inorganic material composite ENFMs and inorganic ENFMs are summarized, and their adsorption capacities for heavy metals in water are compared. The adsorption selectivity and capacity of ENFMs for heavy metals are depended largely on the type and number of functional groups on the surface of membranes, and usually the more the functional groups, the higher the adsorption capacity. The adsorption mechanisms of ENFMs are also mainly determined by the type of functional groups on the membrane. At present, the main challenge is to achieve the mass production of high-quality nanofibers and their actual application in the treatment of heavy metal-containing wastewater. Therefore, more consideration should be focused on the improvement of stability, mechanical strength and reusability of ENFMs. This review may provide an insight for the development of ENFMs-based adsorbents for heavy metals separation and water purification in the future.
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Affiliation(s)
- Fan Zhu
- School of Water Resources and Environment, Beijing Key Laboratory of Water Resources & Environmental Engineering, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, China.
| | - Yu-Ming Zheng
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen 361021, China.
| | - Bao-Gang Zhang
- School of Water Resources and Environment, Beijing Key Laboratory of Water Resources & Environmental Engineering, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, China.
| | - Yun-Rong Dai
- School of Water Resources and Environment, Beijing Key Laboratory of Water Resources & Environmental Engineering, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, China.
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Tao Q, Bi J, Huang X, Wei R, Wang T, Zhou Y, Hao H. Fabrication, application, optimization and working mechanism of Fe 2O 3 and its composites for contaminants elimination from wastewater. CHEMOSPHERE 2021; 263:127889. [PMID: 32828053 DOI: 10.1016/j.chemosphere.2020.127889] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/20/2020] [Accepted: 07/31/2020] [Indexed: 06/11/2023]
Abstract
Fe2O3 and its composites have been extensively investigated and employed for the remediation of contaminated water with the characteristics of low cost, outstanding chemical stability, high efficiency of visible light utilization, excellent magnetic ability and abundant active sites for adsorption and degradation. In this review, the potentials of Fe2O3 in water remediation were discussed and summarized in detail. Firstly, various synthesis methods of Fe2O3 and its composites were reviewed and compared. Based on the structures and characteristics of the obtained materials, their applications and related mechanisms in pollutants removal were surveyed and discussed. Furthermore, several strategies for optimizing the remediation processes, including dispersion, immobilization, nano/micromotor construction and simultaneous decontamination, were also highlighted and discussed. Finally, recommendations for further work in the development of novel Fe2O3-related materials and its practical applications were proposed.
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Affiliation(s)
- Qingqing Tao
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Jingtao Bi
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Xin Huang
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Rongli Wei
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Ting Wang
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Yanan Zhou
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China; College of Chemical Engineering, North China University of Science and Technology, Tangshan, 063210, China.
| | - Hongxun Hao
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China; Co-Innovation Center of Chemical Science and Engineering, Tianjin, 300072, China.
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Yang L, Peng Y, Qian C, Xing G, He J, Zhao C, Lai B. Enhanced adsorption/photocatalytic removal of Cu(Ⅱ) from wastewater by a novel magnetic chitosan@ bismuth tungstate coated by silver (MCTS-Ag/Bi 2WO 6) composite. CHEMOSPHERE 2021; 263:128120. [PMID: 33297112 DOI: 10.1016/j.chemosphere.2020.128120] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 08/19/2020] [Accepted: 08/21/2020] [Indexed: 06/12/2023]
Abstract
An easily separation composite, magnetic chitosan@bismuth tungstate coated by silver (MCTS-Ag/Bi2WO6), was successfully synthesized by the simple hydrothermal method. Moreover, the MCTS-Ag/Bi2WO6 demonstrated excellent adsorption/photocatalytic removal of Cu(II) in aqueous solution. Adsorption played a leading role in the synergistic reaction. The catalysts were characterized by fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and scanning electron microscope (SEM). The effects on adsorption of Cu(II) were investigated, which included illumination, pH, and initial concentration. The experimental results showed that the theoretical maximum adsorption capacity of Cu(II) (181.8 mg/g) was achieved under simulated solar light irradiation with the optimal pH value of 6.0, indicating that illumination could enhance the adsorption of Cu(II) by MCTS-Ag/Bi2WO6. Meanwhile, the composite exhibited desirable adsorption ability of Cu(II) after 5 cycles. The copper ion adsorption fitted well with pseudo-second-order kinetic model and its isotherm followed Freundlich model.
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Affiliation(s)
- LiWei Yang
- School of Civil Engineering, Key Laboratory of Water Supply & Sewage Engineering of Ministry of Housing and Urban-rural Development, Chang'an University, Xi'an, 710061, China
| | - YaQi Peng
- School of Civil Engineering, Key Laboratory of Water Supply & Sewage Engineering of Ministry of Housing and Urban-rural Development, Chang'an University, Xi'an, 710061, China
| | - ChengFeng Qian
- School of Civil Engineering, Key Laboratory of Water Supply & Sewage Engineering of Ministry of Housing and Urban-rural Development, Chang'an University, Xi'an, 710061, China
| | - GuoHua Xing
- School of Civil Engineering, Key Laboratory of Water Supply & Sewage Engineering of Ministry of Housing and Urban-rural Development, Chang'an University, Xi'an, 710061, China
| | - JiaoJie He
- School of Civil Engineering, Key Laboratory of Water Supply & Sewage Engineering of Ministry of Housing and Urban-rural Development, Chang'an University, Xi'an, 710061, China.
| | - ChuanLiang Zhao
- School of Civil Engineering, Key Laboratory of Water Supply & Sewage Engineering of Ministry of Housing and Urban-rural Development, Chang'an University, Xi'an, 710061, China
| | - Bo Lai
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu, 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu, 610065, China.
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Sellami F, Kebiche-Senhadji O, Marais S, Colasse L, Fatyeyeva K. Enhanced removal of Cr(VI) by polymer inclusion membrane based on poly(vinylidene fluoride) and Aliquat 336. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117038] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Rambabu K, Bharath G, Banat F, Show PL. Biosorption performance of date palm empty fruit bunch wastes for toxic hexavalent chromium removal. ENVIRONMENTAL RESEARCH 2020; 187:109694. [PMID: 32485359 DOI: 10.1016/j.envres.2020.109694] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 05/16/2020] [Accepted: 05/18/2020] [Indexed: 06/11/2023]
Abstract
Biosorption ability of date palm empty fruit bunch (DPEFB) was examined for the removal of toxic hexavalent chromium (Cr6+) ions from synthetic wastewater. The pretreated DPEFB biosorbent was studied for its morphology and surface chemistry through Scanning electron microscopy, Energy dispersive elemental analysis and Fourier transform infrared spectroscopy. Effect of biosorption parameters such as pH, biosorbent dosage, contact time, temperature, initial feed concentration and agitation speed on the Cr6+ ions removal efficiency by DPEFB was critically evaluated. The isoelectric point for the DPEFB sorbent was observed at pH 2, above which it was dehydronated to capture the positively charged Cr6+ ions. Batch biosorption studies showed that an optimal chromium removal efficiency of 58.02% was recorded by the DPEFB biosorbent for pH 2, dosage 0.3 g, 100 rpm agitation speed, 120 min contact time, 50 mg/L initial feed concentration and 30 °C operational temperature. Thermodynamic analysis showed that the binding of Cr6+ ions on DPEFB surface was exothermic, stable and favorable at room temperature. Equilibrium behavior of chromium binding on DPEFB was more aligned to Temkin isotherm (R2 = 0.9852) highlighting the indirect interactions between Cr6+ ions and the biosorbent. Kinetic modeling revealed that the biosorption of Cr6+ ions by DPEFB obeyed pseudo-second order model than the pseudo-first order and intra-particle diffusion models. Reusability studies of the DPEFB sorbent showed that NaNO3 was an effective regenerant and the biosorbent can be efficiently reused up to three successive biosorption-desorption cycles for chromium removal. In summary, the results clearly showed that the DPEFB biowaste seems to be an efficient, economic and eco-friendly biosorbent for sustainable removal of toxic hexavalent chromium ions from domestic and industrial wastewater streams.
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Affiliation(s)
- K Rambabu
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - G Bharath
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Fawzi Banat
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
| | - Pau Loke Show
- Department of Chemical Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, 43500, Selangor Darul Ehsan, Malaysia.
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Su J, Hao H, Lv X, Jin X, Yang Q. Properties and mechanism of hexavalent chromium removal by FeS@ graphite carbon nitride nanocomposites. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124751] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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González-López ME, Laureano-Anzaldo CM, Pérez-Fonseca AA, Arellano M, Robledo-Ortíz JR. Chemically Modified Polysaccharides for Hexavalent Chromium Adsorption. SEPARATION AND PURIFICATION REVIEWS 2020. [DOI: 10.1080/15422119.2020.1783311] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
| | | | | | - Martín Arellano
- Departamento de Ingeniería Química, CUCEI, Universidad De Guadalajara, Jalisco, México
| | - Jorge Ramón Robledo-Ortíz
- Departamento de Madera, Celulosa y Papel, CUCEI, Universidad de Guadalajara, Zapopan, Jalisco, México
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Sahoo JK, Paikra SK, Baliarsingh A, Panda D, Rath S, Mishra M, Sahoo H. Surface functionalization of graphene oxide using amino silane magnetic nanocomposite for Chromium (VI) removal and bacterial treatment. NANO EXPRESS 2020. [DOI: 10.1088/2632-959x/ab9e3f] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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