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Malik W, Victoria Tafoya JP, Doszczeczko S, Jorge Sobrido AB, Skoulou VK, Boa AN, Zhang Q, Ramirez Reina T, Volpe R. Synthesis of a Graphene-Encapsulated Fe 3C/Fe Catalyst Supported on Sporopollenin Exine Capsules and Its Use for the Reverse Water-Gas Shift Reaction. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2023; 11:15795-15807. [PMID: 37969887 PMCID: PMC10630965 DOI: 10.1021/acssuschemeng.3c00495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 09/09/2023] [Accepted: 09/28/2023] [Indexed: 11/17/2023]
Abstract
Bioderived materials have emerged as sustainable catalyst supports for several heterogeneous reactions owing to their naturally occurring hierarchal pore size distribution, high surface area, and thermal and chemical stability. We utilize sporopollenin exine capsules (SpECs), a carbon-rich byproduct of pollen grains, composed primarily of polymerized and cross-linked lipids, to synthesize carbon-encapsulated iron nanoparticles via evaporative precipitation and pyrolytic treatments. The composition and morphology of the macroparticles were influenced by the precursor iron acetate concentration. Most significantly, the formation of crystalline phases (Fe3C, α-Fe, and graphite) detected via X-ray diffraction spectroscopy showed a critical dependence on iron loading. Significantly, the characteristic morphology and structure of the SpECs were largely preserved after high-temperature pyrolysis. Analysis of Brunauer-Emmett-Teller surface area, the D and G bands from Raman spectroscopy, and the relative ratio of the C=C to C-C bonding from high-resolution X-ray photoelectron spectroscopy suggests that porosity, surface area, and degree of graphitization were easily tuned by varying the Fe loading. A mechanism for the formation of crystalline phases and meso-porosity during the pyrolysis process is also proposed. SpEC-Fe10% proved to be highly active and selective for the reverse water-gas shift reaction at high temperatures (>600 °C).
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Affiliation(s)
- Waqas Malik
- School
of Engineering and Materials Science, Queen
Mary University of London, Mile End Campus, E1 4NS London, U.K.
| | - Jorge Pavel Victoria Tafoya
- School
of Engineering and Materials Science, Queen
Mary University of London, Mile End Campus, E1 4NS London, U.K.
| | - Szymon Doszczeczko
- School
of Engineering and Materials Science, Queen
Mary University of London, Mile End Campus, E1 4NS London, U.K.
| | - Ana Belen Jorge Sobrido
- School
of Engineering and Materials Science, Queen
Mary University of London, Mile End Campus, E1 4NS London, U.K.
| | | | - Andrew N. Boa
- Department
of Chemistry, University of Hull, Hull HU6 7RX, U.K.
| | - Qi Zhang
- Department
of Chemical and Process Engineering, University
of Surrey, Guildford, Surrey GU2 7XH, U.K.
| | - Tomas Ramirez Reina
- Department
of Chemical and Process Engineering, University
of Surrey, Guildford, Surrey GU2 7XH, U.K.
| | - Roberto Volpe
- School
of Engineering and Materials Science, Queen
Mary University of London, Mile End Campus, E1 4NS London, U.K.
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2
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Trinary Component Adsorption of Methylene Blue, Methyl Orange, and Methyl Red from Aqueous Solution Using TiO2/Activated Carbon. ADSORPT SCI TECHNOL 2023. [DOI: 10.1155/2023/8943198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Porous TiO2/activated carbon (AC) material was synthesized by grafting peroxo-hydro titanium complexes to rice husk-derived activated carbon. It was found that the morphology of TiO2/AC consists of TiO2 fine particles highly dispersed on the AC matrix. The obtained TiO2/AC composites with high surface area and a red shift exhibit an excellent adsorption performance in both single and trinary system toward methylene blue (MB), methyl orange (MO), and methyl red (MR). The isotherm models including extended Langmuir, P-factor, ideal adsorbed solution theory (IAST) for Langmuir, Freundlich, and Sips models were applied to study the adsorption equilibrium data of trinary solutions. It was found that IAST for Freundlich and Langmuir models were the most suitable one to describe the adsorption of the three dyes on TiO2/AC material. The high maximum adsorption capacities (mmol g-1) in single/trinary mixture were found as 0.452/0.340 for MB; 0.329/0.321 for MO; and 0.806/2.04 for MR. Moreover, the recyclability experiments showed that the adsorbent could be reused through photocatalytic self-cleaning for at least three cycles with stable capacity. Thus, the TiO2/AC can be effectively employed for the removal of dyes from industrial textile wastewater.
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Yaacob SFFS, Jamil RZR, Suah FBM. Sporopollenin based materials as a versatile choice for the detoxification of environmental pollutants - A review. Int J Biol Macromol 2022; 207:990-1004. [PMID: 35381287 DOI: 10.1016/j.ijbiomac.2022.03.206] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/23/2022] [Accepted: 03/30/2022] [Indexed: 12/16/2022]
Abstract
Before making the transfer to land, plants survive in water for millions of years to avoid the severe circumstances that prevail on lands, such as drought and UV radiation. All land plant spores are coated in sporopollenin, a substance that has developed to endow pollen and spore shells with exceptional, one-of-a-kind qualities. In a nutshell, sporopollenin-coated spores are a unique invention only seen in land plants. Sporopollenin, discovered in the outer exine layer of pollen walls, is a lipid and phenolic-based polymer with high carbon, hydrogen, and oxygen cross-linking. Products based on sporopollenin can remediate toxic pollutant contamination in the aquatic environment. This research and development are now underway. In this review, we show how sporopollenin-based adsorbents act in environmental challenges and their immense promise for this application via remarkable physical and chemical characteristics. A comparison is made of the benefits of various sporopollenin-modified structures. This strategy will further our understanding of how a biopolymer's structure can be accommodated to address emerging environmental challenges, revealing more about sporopollenin's dynamical nature.
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Affiliation(s)
- Syed Fariq Fathullah Syed Yaacob
- Green Analytical Chemistry Laboratory, School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Pulau Pinang, Malaysia.
| | - Raja Zalinda Raja Jamil
- Green Analytical Chemistry Laboratory, School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Pulau Pinang, Malaysia
| | - Faiz Bukhari Mohd Suah
- Green Analytical Chemistry Laboratory, School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Pulau Pinang, Malaysia.
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Modification of Poly(vinylidene fluoride-co-hexafluoropropylene) Membranes with DES-Functionalized Carbon Nanospheres for Removal of Methyl Orange by Membrane Distillation. WATER 2022. [DOI: 10.3390/w14091396] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Chemical pollutants, such as methyl orange (MO), constitute the main ingredients in the textile industry wastewater, and specifically, the dyeing process. The use of such chemicals leads to huge quantities of unfixed dyes to make their way to the water effluent and consequently escalates the water pollution problem. This work investigates the incorporation of hydrophobic carbon nanospheres (CNS) prepared from the pyrolysis of acetylene using the chemical vapor deposition technique with poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) in order to enhance its hydrophobicity. Moreover, a deep eutectic solvent (DES) was used to enhance the membrane’s porosity. The former was based on the quaternary ammonium salt (N,N-diethyl-ethanol-ammonium chloride) as a chemical addition throughout the membrane synthesis. Direct contact membrane distillation (DCMD) was employed to assess the performance of the modified membrane for treatment of MO contaminated water. The phase inversion method was used to embed various contents of CNS (i.e., 1.0, 3.0, and 5.0 wt.%) with 22:78 wt.% of PVDF-co-HFP/N-Methyl-2-pyrrolidone solution to prepare flat-sheet membranes. The membrane embedded with 5 wt.% CNS resulted in an increase in membrane hydrophobicity and presented considerable enhancement in DCMD permeation from 12 to 35 L/h.m2 with salt rejection >99.9%. Moreover, the composite membrane showed excellent anti-biofouling and mechanical characteristics as compared to the pristine counterpart. Using this membrane, a complete rejection of MO was achieved due to the synergistic contribution of the dye negative charge and the size exclusion effect.
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Bişgin AT, Nalvuran Z, Gezici O. Simultaneous Preconcentration and Spectrophotometric Determination of Two Colorants (E110 and E133) in Some Foodstuffs Using a New Mussel-Inspired Adsorbent. J AOAC Int 2021; 104:137-147. [PMID: 33331941 DOI: 10.1093/jaoacint/qsaa125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/10/2020] [Accepted: 08/23/2020] [Indexed: 11/13/2022]
Abstract
BACKGROUND A naturally occurring material, namely sporopollenin (SP), was subjected to an easy physical surface modification process called a polydopamine coating. The treatment changed the acid-base properties of the surface, so that in the new form the SP surface gained a very attractive character for anionic dyes. OBJECTIVE The aim of the study was to develop preconcentration and subsequent spectrophotometric determination methods for two anionic colorants, brilliant blue (BB) and sunset yellow (SY), using polydopamine-coated (PDC) SP. METHOD The experiments were carried out in a column system, and the effects of experimental parameters were studied to determine optimal conditions for the quantitative, simultaneous spectrophotometric determination of the dyes. RESULTS The dyes could be detected at µg/L levels in their binary mixtures, so the detection limits were found to be 1.5 and 4.3 µg/L in the linear dynamic ranges of 0.0-3.5 and 0-8 µg/mL for BB and SY, respectively. The proposed material and procedure led to quantitative recoveries of between 95 and 100% for the dyes. CONCLUSIONS The procedure was applied to real food samples containing BB and SY and both dyes were successfully determined in liquid and solid foodstuffs. The mussel-inspired surface modification is proposed as a useful process to modify the surface of SP. HIGHLIGHTS The mussel-inspired polydopamine dip-coating method was adopted to modify the surface of SP for the first time. The PDCSP was successfully used to create a new adsorptive preconcentration method for simultaneous spectrophotometric determination of BB and SY in foodstuffs.
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Affiliation(s)
| | - Zeynep Nalvuran
- Niğde Ömer Halisdemir University, Central Research Laboratory, Niğde 51240, Turkey
| | - Orhan Gezici
- Niğde Ömer Halisdemir University, Faculty of Science and Arts, Department of Chemistry, Niğde 51240, Turkey
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Synthesis and characterization of poly(ethylene terephthalate) fibers grafted with N-(hydroxymethyl) acrylamide by free radical: its application in elimination of Congo red. Polym Bull (Berl) 2020. [DOI: 10.1007/s00289-020-03168-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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7
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Mirzaei D, Zabardasti A, Mansourpanah Y, Sadeghi M, Farhadi S. Efficacy of Novel NaX/MgO–TiO2 Zeolite Nanocomposite for the Adsorption of Methyl Orange (MO) Dye: Isotherm, Kinetic and Thermodynamic Studies. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01369-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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Ibrahim RK, El-Shafie A, Hin LS, Mohd NSB, Aljumaily MM, Ibraim S, AlSaadi MA. A clean approach for functionalized carbon nanotubes by deep eutectic solvents and their performance in the adsorption of methyl orange from aqueous solution. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 235:521-534. [PMID: 30716672 DOI: 10.1016/j.jenvman.2019.01.070] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 01/11/2019] [Accepted: 01/17/2019] [Indexed: 05/18/2023]
Abstract
In this study two deep eutectic solvents (DESs) were prepared using ethylene glycol (EG) and two different ammonium-based salts. The potential of these DESs as novel agents for CNTs functionalization was examined by performing a comprehensive characterization study to identify the changes developing after the functionalization process. The impact of DESs was obvious by increasing the surface area of CNTs to reach 197.8 (m2/g), and by adding new functional groups to CNTs surface without causing any damage to the unique structure of CNTs. Moreover, CNTs functionalized with DESs were applied as new adsorbents for the removal of methyl orange (MO) from water. The adsorption conditions were optimized using RSM-CCD experimental design. The kinetics and the equilibrium adsorption data were analyzed using different kinetic and isotherm models. According to the regression results, adsorption kinetics data were well described by pseudo-second order model, whereas adsorption isotherm data were best represented by Langmuir isotherm model. The highest recorded maximum adsorption capacity (qmax) value was found to be 310.2 mg/g.
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Affiliation(s)
- Rusul Khaleel Ibrahim
- Department of Civil Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Ahmed El-Shafie
- Department of Civil Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Lai Sai Hin
- Department of Civil Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
| | | | - Mustafa Mohammed Aljumaily
- Nanotechnology & Catalysis Research Centre (NANOCAT), University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Shaliza Ibraim
- Department of Civil Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
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9
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Sonocatalytic degradation of methyl orange in aqueous solution using Fe-doped TiO2 nanoparticles under mechanical agitation. OPEN CHEM 2018. [DOI: 10.1515/chem-2018-0137] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractIn the present study, the Fe-doped TiO2 modified nanoparticles was successfully synthesized by the combination of the sol-gel method and heat treatment, and the degradation of methyl orange was tested by the combination method of ultrasonic radiation and mechanical agitation. The effects of different factors on the degradation of methyl orange (MO) solution were studied, such as ultrasonic irradiation time, the ultrasonic frequency, the added amount of catalyst, the initial pH value, the initial concentration of methyl orange, and revolutions per minute. The optimal experimental conditions for sonocatalytic degradation of the MO obtained were: ultrasonic irradiation time = 60 min, pH value = 3.0 and revolutions per minute = 500 rpm. By means of response surface analysis, the best fitting conditions were as follows: ultrasonic frequency = 36.02 kHz, added amount of catalyst = 490.50 mg/L, the initial concentration of methyl orange = 9.22 mg/L, and the optimum condition was close to the experimental data by response surface method. Under optimal conditions, the sonocatalytic degradation of MO was 99%. The degradation of MO showed that the combination of Fe-doped modified TiO2 nanoparticles, mechanical agitation and ultrasonic irradiation was discovered that can degrade methyl orange effectively in aqueous solution.
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10
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Muralisankar I, Agilan S, Selvakumar R, Vairam S. Synthesis of Co 3O 4/graphene nanocomposite using paraffin wax for adsorption of methyl violet in water. IET Nanobiotechnol 2018; 12:787-794. [PMID: 30104453 PMCID: PMC8676403 DOI: 10.1049/iet-nbt.2017.0181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Revised: 03/03/2018] [Accepted: 03/19/2018] [Indexed: 11/20/2022] Open
Abstract
This study discusses the use of Co3O4 impregnated graphene (CoOIG) as an efficient adsorbent for the removal of methyl violet (MV) dye from wastewater. CoOIG nanocomposites have been prepared by pyrolyzing paraffin wax with cobalt acetate. The synthesised nanocomposite was characterised by X-ray diffraction, field emission scanning electron microscope, transmission electron microscope, Fourier transform infrared spectroscope, Raman spectroscopy, and Brunauer-Emmett-Teller isotherm studies. The above studies indicate that the composites have cobalt oxide nanoparticles of size 51-58 nm embedded in the graphene nanoparticles. The adsorption studies were conducted with various parameters, pH, temperature and initial dye concentration, adsorbent dosage and contact time by the batch method. The adsorption of MV dye by the adsorbent CoOIG was about 90% initially at 15 min and 98% dye removal at pH 5. The data were fitted in Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich and Sips isotherm models. Various thermodynamic parameters like Gibbs free energy, enthalpy, and entropy of the on-going adsorption process have also been calculated.
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Affiliation(s)
- Indiran Muralisankar
- Department of Chemistry, Coimbatore Institute of Technology, Coimbatore, TN 641014, India.
| | - Santhanam Agilan
- Department of Physics, Coimbatore Institute of Technology, Coimbatore, TN 641014, India
| | - Rajendran Selvakumar
- Department of Chemistry, Government College of Technology, Coimbatore, TN 641013, India
| | - Sundararajan Vairam
- Department of Chemistry, Government College of Technology, Coimbatore, TN 641013, India
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11
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Fideles RA, Ferreira GMD, Teodoro FS, Adarme OFH, da Silva LHM, Gil LF, Gurgel LVA. Trimellitated sugarcane bagasse: A versatile adsorbent for removal of cationic dyes from aqueous solution. Part I: Batch adsorption in a monocomponent system. J Colloid Interface Sci 2018; 515:172-188. [DOI: 10.1016/j.jcis.2018.01.025] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Revised: 01/04/2018] [Accepted: 01/05/2018] [Indexed: 11/25/2022]
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12
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Li X, Yuan H, Quan X, Chen S, You S. Effective adsorption of sulfamethoxazole, bisphenol A and methyl orange on nanoporous carbon derived from metal-organic frameworks. J Environ Sci (China) 2018; 63:250-259. [PMID: 29406107 DOI: 10.1016/j.jes.2017.10.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Revised: 10/25/2017] [Accepted: 10/26/2017] [Indexed: 05/27/2023]
Abstract
Nanoporous carbons (NPCs) derived from metal-organic frameworks (MOFs) are attracting increasing attention in many areas by virtue of their high specific surface area, large pore volume and unique porosity. The present work reports the preparation of an NPC with high surface area (1731m2/g) and pore volume (1.68cm3/g) by direct carbonization of MOF-5. We examined the adsorption of three typical contaminants from aqueous solutions, i.e., sulfamethoxazole (SMX), bisphenol A (BPA) and methyl orange (MO), by using the as-prepared NPC. The results demonstrated that NPC could adsorb the contaminants effectively, with adsorption capacity (qm) of 625mg/g (SMX), 757mg/g (BPA) and 872mg/g (MO), respectively. These values were approximately 1.0-3.2 times higher than those obtained for single-walled carbon nanotubes (SWCNTs) and commercial powder active carbon (PAC) under the same conditions. With its high surface area and unique meso/macropore structure, the enhanced adsorption of NPC most likely originates from the cooperative interaction of a pore-filling mechanism, electrostatic interaction, and hydrogen bonding. In particular, the pH value has a crucial impact on adsorption, suggesting the significant contribution of electrostatic interaction between NPC and the contaminants. This study provides a proof-of-concept demonstration of MOF-derived nanoporous carbons as effective adsorbents of contaminants for water treatment.
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Affiliation(s)
- Xiaona Li
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Ling gong Road 2, Dalian 116024, China
| | - Hui Yuan
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Ling gong Road 2, Dalian 116024, China
| | - Xie Quan
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Ling gong Road 2, Dalian 116024, China.
| | - Shuo Chen
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Ling gong Road 2, Dalian 116024, China
| | - Shijie You
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
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Memon S, Bhatti AA, Bhatti AA. Calix[4]arene Resin, An Efficient Adsorbent for Azo Dyes. Polycycl Aromat Compd 2017. [DOI: 10.1080/10406638.2017.1306571] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Shahabuddin Memon
- National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Ashfaque Ali Bhatti
- National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Asif Ali Bhatti
- National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
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Ahmad A, Razali MH, Mamat M, Mehamod FSB, Anuar Mat Amin K. Adsorption of methyl orange by synthesized and functionalized-CNTs with 3-aminopropyltriethoxysilane loaded TiO 2 nanocomposites. CHEMOSPHERE 2017; 168:474-482. [PMID: 27855344 DOI: 10.1016/j.chemosphere.2016.11.028] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 10/30/2016] [Accepted: 11/06/2016] [Indexed: 05/18/2023]
Abstract
This study aims to develop a highly efficient adsorbent material. CNTs are prepared using a chemical vapor deposition method with acetylene and synthesized mesoporous Ni-MCM41 as the carbon source and catalyst, respectively, and are then functionalized using 3-aminopropyltriethoxysilane (APTES) through the co-condensation method and loaded with commercial TiO2. Results of X-ray powder diffraction (XRD), Raman spectra, and Fourier transform infrared spectroscopy (FTIR) confirm that the synthesized CNTs grown are multi-walled carbon nanotubes (MWNTs). Transmission electron microscopy shows good dispersion of TiO2 nanoparticles onto functionalized-CNTs loaded TiO2, with the diameter of a hair-like structure measuring between 3 and 8 nm. The functionalized-CNTs loaded TiO2 are tested as an adsorbent for removal of methyl orange (MO) in aqueous solution, and results show that 94% of MO is removed after 10 min of reaction, and 100% after 30 min. The adsorption kinetic model of functionalized-CNTs loaded TiO2 follows a pseudo-second order with a maximum adsorption capacity of 42.85 mg/g. This study shows that functionalized-CNTs loaded TiO2 has considerable potential as an adsorbent material due to the short adsorption time required to achieve equilibrium.
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Affiliation(s)
- Amirah Ahmad
- School of Fundamental Science, Universiti Malaysia Terengganu, 21030, Terengganu, Malaysia
| | - Mohd Hasmizam Razali
- School of Fundamental Science, Universiti Malaysia Terengganu, 21030, Terengganu, Malaysia
| | - Mazidah Mamat
- School of Fundamental Science, Universiti Malaysia Terengganu, 21030, Terengganu, Malaysia
| | | | - Khairul Anuar Mat Amin
- School of Fundamental Science, Universiti Malaysia Terengganu, 21030, Terengganu, Malaysia.
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15
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Pal U, Sandoval A, Madrid SIU, Corro G, Sharma V, Mohanty P. Mixed titanium, silicon, and aluminum oxide nanostructures as novel adsorbent for removal of rhodamine 6G and methylene blue as cationic dyes from aqueous solution. CHEMOSPHERE 2016; 163:142-152. [PMID: 27529381 DOI: 10.1016/j.chemosphere.2016.08.020] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Revised: 05/22/2016] [Accepted: 08/02/2016] [Indexed: 05/25/2023]
Abstract
Mixed oxide nanoparticles containing Ti, Si, and Al of 8-15 nm size range were synthesized using a combined sol-gel - hydrothermal method. Effects of composition on the structure, morphology, and optical properties of the nanoparticles were studied using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), microRaman spectroscopy, and diffuse reflectance spectroscopy (DRS). Dye removal abilities of the nanoparticles from aqueous solutions were tested for different cationic dyes. While all the mixed oxide nanoparticles revealed high and fast adsorption of cationic dyes, the particles containing Ti and Si turned out to be the best. The adsorption kinetics and equilibrium adsorption behavior of the adsorbate - adsorbent systems could be well described by pseudo-second-order kinetics and Langmuir isotherm model, respectively. Estimated thermodynamic parameters revealed the adsorption process is spontaneous, driven mainly by the electrostatic force between the cationic dye molecules and negative charge at nanoparticle surface. Highest dye adsorption capacity (162.96 mg MB/g) of the mixed oxide nanostructures containing Ti and Si is associated to their high specific surface area, and the presence of surface Si-O(δ-) groups, in addition to the hydroxyl groups of amorphous titania. Mixed oxide nanoparticles containing 75% Ti and 25% Si seen to be the most efficient adsorbents for removing cationic dye molecules from wastewater.
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Affiliation(s)
- Umapada Pal
- Instituto de Física, Universidad Autónoma de Puebla, Apdo. Postal J-48, Puebla, Pue., 72570, Mexico.
| | - Alberto Sandoval
- Instituto de Física, Universidad Autónoma de Puebla, Apdo. Postal J-48, Puebla, Pue., 72570, Mexico
| | | | - Grisel Corro
- Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 4 sur 104, 72000, Puebla, Mexico
| | - Vivek Sharma
- Department of Applied Science & Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Uttar Pradesh, 247001, India
| | - Paritosh Mohanty
- Department of Applied Science & Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Uttar Pradesh, 247001, India
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Surfacted ferrofluid based dispersive solid phase extraction; a novel approach to preconcentration of cationic dye in shrimp and water samples. Food Chem 2015; 185:398-404. [DOI: 10.1016/j.foodchem.2015.03.042] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Revised: 02/15/2015] [Accepted: 03/13/2015] [Indexed: 11/18/2022]
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17
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Removal of methyl orange by multiwall carbon nanotube accelerated by ultrasound devise: Optimized experimental design. ADV POWDER TECHNOL 2015. [DOI: 10.1016/j.apt.2015.05.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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18
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Lee HJ, Kim JH, Park SS, Hong SS, Lee GD. Degradation kinetics for photocatalytic reaction of methyl orange over Al-doped ZnO nanoparticles. J IND ENG CHEM 2015. [DOI: 10.1016/j.jiec.2014.10.035] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Sargın İ, Arslan G. Chitosan/sporopollenin microcapsules: Preparation, characterisation and application in heavy metal removal. Int J Biol Macromol 2015; 75:230-8. [DOI: 10.1016/j.ijbiomac.2015.01.039] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Revised: 01/10/2015] [Accepted: 01/27/2015] [Indexed: 11/28/2022]
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Enhanced removal of methyl orange from aqueous solutions by poly HEMA–chitosan-MWCNT nano-composite. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2014.10.040] [Citation(s) in RCA: 156] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Wang J, Wang D, Zhang G, Guo Y, Liu J. Adsorption of rhodamine B from aqueous solution onto heat-activated sepiolite. ACTA ACUST UNITED AC 2013. [DOI: 10.1007/s11859-013-0918-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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22
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Anirudhan TS, Radhakrishnan PG, Vijayan K. Development of a First-Order Kinetics Based Model, Equilibrium Studies, and Thermodynamics for the Adsorption of Methyl Orange onto a Lignocellulosic Anion Exchanger. SEP SCI TECHNOL 2013. [DOI: 10.1080/01496395.2012.715320] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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23
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Zhang W, Zhou C, Zhou W, Lei A, Zhang Q, Wan Q, Zou B. Fast and considerable adsorption of methylene blue dye onto graphene oxide. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2011; 87:86-90. [PMID: 21567134 DOI: 10.1007/s00128-011-0304-1] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2010] [Accepted: 05/03/2011] [Indexed: 05/24/2023]
Abstract
The quite efficient adsorption of methylene blue dye from an aqueous solution by graphene oxide was studied. The favorable electrostatic attraction is the main interaction between methylene blue and graphene oxide. As graphene oxide has the special nanostructural properties and negatively charged surface, the positively charged methylene blue molecules can be easily adsorbed on it. In the aqueous solution of methylene blue at 293 K, the adsorption data could be fitted by the Langmuir equation with a maximum adsorption amount of 1.939 mg/mg and a Langmuir adsorption equilibrium constant of 18.486 mL/mg. The adsorption amount increased with the increase of the solution pH (3-11), was not affected significantly by KCl under the examined condition and the adsorption process was exothermic in nature. The fast and considerable adsorption of graphene oxide could be regarded as a potential adsorbent for cationic dye removal in wastewater treatment process.
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Affiliation(s)
- Wenjie Zhang
- School of Chemistry and Chemical Engineering, Micro-Nano Center, Hunan University, Changsha 410082, China
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Rakhshaee R, Giahi M, Pourahmad A. Removal of methyl orange from aqueous solution by Azolla filicoloides: Synthesis of Fe3O4 nano-particles and its surface modification by the extracted pectin of Azolla. CHINESE CHEM LETT 2011. [DOI: 10.1016/j.cclet.2010.10.041] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Huang J. Adsorption Thermodynamics of Methyl Orange from Aqueous Solution onto a Hyper-Cross-Linked Polystyrene Resin Modified with Phenolic Hydroxy Groups. ADSORPT SCI TECHNOL 2010. [DOI: 10.1260/0263-6174.28.5.397] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Jianhan Huang
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
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Weng CH, Lin YT, Tzeng TW. Removal of methylene blue from aqueous solution by adsorption onto pineapple leaf powder. JOURNAL OF HAZARDOUS MATERIALS 2009; 170:417-424. [PMID: 19447547 DOI: 10.1016/j.jhazmat.2009.04.080] [Citation(s) in RCA: 142] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2008] [Revised: 04/20/2009] [Accepted: 04/21/2009] [Indexed: 05/27/2023]
Abstract
The ability of an unconventional bio-adsorbent, pineapple leaf powder (PLP) for the adsorption of methylene blue (MB) from aqueous solution was studied. It was observed that intra-particle diffusion was involved in the adsorption process and that the kinetic data fitted well with a pseudo-second-order equation. Fitting parameters revealed that the rate of adsorption increased with decrease in dye concentration and decrease in ionic strength while the mixing speed did not have a significant effect on adsorption. The adsorption was favorable at higher pH and lower temperature, and the equilibrium data were well fitted by the Langmuir isotherm. The maximum adsorption capacity varied from 4.68 x 10(-4) to 9.28 x 10(-4)mol/g when pH increases from 3.5 to 9.5. Thermodynamic parameters suggest that the adsorption is a typical physical process, spontaneous, and exothermic in nature. The results revealed that this agricultural waste has potential to be used as an economical adsorbent for the removal of methylene blue from aqueous solution.
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Affiliation(s)
- Chih-Huang Weng
- Department of Civil and Ecological Engineering, I-Shou University, Da-Hsu Township, Kaohsiung 84008, Taiwan.
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Kurt G, Mercimek B. Preparation of New Benzoylthiourea-functionalized PVC Resin and Investigation of the Complexation Properties. J Inorg Organomet Polym Mater 2009. [DOI: 10.1007/s10904-009-9274-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Huang JH, Huang KL, Liu SQ, Wang AT, Yan C. Adsorption of Rhodamine B and methyl orange on a hypercrosslinked polymeric adsorbent in aqueous solution. Colloids Surf A Physicochem Eng Asp 2008. [DOI: 10.1016/j.colsurfa.2008.07.050] [Citation(s) in RCA: 211] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mittal A, Malviya A, Kaur D, Mittal J, Kurup L. Studies on the adsorption kinetics and isotherms for the removal and recovery of Methyl Orange from wastewaters using waste materials. JOURNAL OF HAZARDOUS MATERIALS 2007; 148:229-40. [PMID: 17379402 DOI: 10.1016/j.jhazmat.2007.02.028] [Citation(s) in RCA: 218] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2007] [Revised: 02/07/2007] [Accepted: 02/07/2007] [Indexed: 05/14/2023]
Abstract
De-Oiled Soya a waste of Soya oil industries and Bottom Ash a waste of thermal power plants have been used as effective adsorbent for recovery and removal of hazardous dye Methyl Orange from wastewater. During the studies effects of amount of dye and adsorbents, pH, sieve sizes, column studies etc. have been carried out. Adsorption of the dye over both the adsorbents has been monitored through Langmuir and Freundlich adsorption isotherm models and feasibility of the process is predicted in both the cases. Different thermodynamic parameters like Gibb's free energy, enthalpy and entropy of the undergoing process are also evaluated through these adsorption models. The kinetic studies confirm the first order process for the adsorption reaction and also play an important role in finding out half-life of the adsorption process and rate constants for both the adsorbents. It is also found that over the entire concentration range the adsorption on Bottom Ash takes place via particle diffusion process, while that of De-Oiled Soya undergoes via film diffusion process. In order to establish the practical utility of the developed process, attempts have been made for the bulk removal of the dye through column operations. For the two columns saturation factors are found as 98.61 and 99.8%, respectively, for Bottom Ash and De-Oiled Soya with adsorption capacity of each adsorbent as 3.618 and 16.664 mg/g, respectively. The dye recovery has been achieved by eluting dil. NaOH through the exhausted columns.
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Affiliation(s)
- Alok Mittal
- Department of Applied Chemistry, Maulana Azad National Institute of Technology, Bhopal 462007, MP, India.
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Ayar A, Gezici O, Küçükosmanoğlu M. Adsorptive removal of Methylene blue and Methyl orange from aqueous media by carboxylated diaminoethane sporopollenin: on the usability of an aminocarboxilic acid functionality-bearing solid-stationary phase in column techniques. JOURNAL OF HAZARDOUS MATERIALS 2007; 146:186-93. [PMID: 17208364 DOI: 10.1016/j.jhazmat.2006.12.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2006] [Revised: 11/28/2006] [Accepted: 12/01/2006] [Indexed: 05/13/2023]
Abstract
The adsorption phenomena of Methylene blue (MB) and Methyl orange (MO) on a carboxylated diaminoethane sporopollenin (CDAE-S) solid phase were investigated in a column arrangement by using breakthrough technique. The adsorption phenomena were evaluated using some common adsorption isotherm models and Scatchard plot analysis, and obtained results were interpreted for evaluating the usability of CDAE-S for removal, recovery and preconcentration of the studied dyes both at the laboratory and industrial scales. On the basis of Scatchard plot analysis, the interaction types between the CDAE-S and the studied dyes were criticized in terms of affinity phenomena. Thus, the usability of a biomacromolecule-derived material, CDAE-S, as a cheap, environmentally-friendly and effective solid-stationary phase exhibiting both cation-exchange and anion-exchange characteristics at the same time, is discussed through the present study. Besides, from the obtained results, the protonated CDAE-S, which functionally resembles an amino acid structure, are presented as a two-in-one solid-stationary phase, and its adaptability to common processes performed under column conditions is also drawn in detail.
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Affiliation(s)
- Ahmet Ayar
- Niğde University, Faculty of Science and Art, Department of Chemistry, 51100 Niğde, Turkey
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Gezici O, Kara H, Ayar A, Topkafa M. Sorption behavior of Cu(II) ions on insolubilized humic acid under acidic conditions: An application of Scatchard plot analysis in evaluating the pH dependence of specific and nonspecific bindings. Sep Purif Technol 2007. [DOI: 10.1016/j.seppur.2006.11.012] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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