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Ullah N, Ali Z, Khan AS, Adalat B, Nasrullah A, Khan SB. Preparation and dye adsorption properties of activated carbon/clay/sodium alginate composite hydrogel membranes. RSC Adv 2024; 14:211-221. [PMID: 38173605 PMCID: PMC10759302 DOI: 10.1039/d3ra07554k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 12/05/2023] [Indexed: 01/05/2024] Open
Abstract
A hydrogel membrane was prepared using activated carbon and sodium dodecyl sulphate modified montmorillonite clay incorporated into sodium alginate polymer. The activated carbon was prepared from a locally available susbine plant. The physiochemical characteristics of the synthesized hydrogel membrane were investigated using FTIR, SEM, EDX, and TGA techniques. The performance of the membrane was evaluated as an adsorbent by methyl red adsorption from water. The adsorption behavior of the hydrogel membrane was investigated under varying conditions of pH (2-10), membrane dose (0.0025-0.015 mg g-1), equilibrium adsorption time (30-360 minutes), solution temperature (25-45 °C) and dye concentration (100-500 mg L-1). The maximum adsorption capacity of the hydrogel membrane was 248.13 mg g-1. The kinetics of methyl red adsorption on hydrogel membrane best followed the pseudo-second order (PSO). The equilibrium adsorption results suggested that it obeyed the Freundlich isotherm very closely (R2 = 0.994). The thermodynamics of methyl red adsorption on the hydrogel membrane revealed that the adsorption was spontaneous (ΔS° = 16.15 kJ K-1 mol-1), favorable (ΔG° = -3.51 kJ mol-1), and endothermic (ΔH° = -1.48 kJ mol-1) in nature. These investigations suggested that the fabricated hydrogel membrane could be suitably used for methyl red adsorption from the solution.
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Affiliation(s)
- Nasim Ullah
- Department of Chemistry, Hazara University Mansehra 21120 Khyber Pakhtunkhwa Pakistan
| | - Zarshad Ali
- Department of Chemistry, Hazara University Mansehra 21120 Khyber Pakhtunkhwa Pakistan
| | - Amir Sada Khan
- Department of Chemistry, University of Science and Technology Bannu 28100 Khyber Pakhtunkhwa Pakistan
| | - Bushra Adalat
- Department of Chemistry, Hazara University Mansehra 21120 Khyber Pakhtunkhwa Pakistan
| | - Asma Nasrullah
- Department of Chemistry, Shaheed Benazir Bhutto Women University Peshawar 25000 Khyber Pakhtunkhwa Pakistan
| | - Sher Bahadar Khan
- Chemistry Department, Faculty of Science, King Abdulaziz University P. O. Box 80203 Jeddah 21589 Saudi Arabia
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2
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Jaramillo-Fierro X, Gaona S, Ramón J, Valarezo E. Porous Geopolymer/ZnTiO 3/TiO 2 Composite for Adsorption and Photocatalytic Degradation of Methylene Blue Dye. Polymers (Basel) 2023; 15:2697. [PMID: 37376343 DOI: 10.3390/polym15122697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/09/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
In this study, GP (geopolymer) and GTA (geopolymer/ZnTiO3/TiO2) geopolymeric materials were prepared from metakaolin (MK) and characterized by X-ray diffraction (XRD), X-ray fluorescence (XRF), scanning electron microscopy (SEM), energy dispersive X-rays (EDX), specific surface area (SSA), and point of zero charge (PZC). The adsorption capacity and photocatalytic activity of the compounds prepared in the form of pellets was determined by degradation of the methylene blue (MB) dye in batch reactors, at pH = 7.0 ± 0.2 and room temperature (20 °C). The results indicate that both compounds are highly efficient at adsorbing MB, with an average efficiency value of 98.5%. The Langmuir isotherm model and the pseudo second order kinetic model provided the best fits to the experimental data for both compounds. In the MB photodegradation experiments under UVB irradiation, GTA reached an efficiency of 93%, being higher than that achieved by GP (4%). Therefore, the incorporation of ZnTiO3/TiO2 in the geopolymeric matrix allowed GTA to achieve higher overall efficiency, by combining adsorption and photocatalysis, compared to the GP compound. The results indicate that the synthesized compounds could be used for up to five consecutive cycles for the removal of MB from wastewater through adsorption and/or photocatalysis processes.
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Affiliation(s)
- Ximena Jaramillo-Fierro
- Departamento de Química, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, San Cayetano Alto, Loja 1101608, Ecuador
| | - Sneyder Gaona
- Ingeniería Química, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, San Cayetano Alto, Loja 1101608, Ecuador
| | - John Ramón
- Ingeniería Química, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, San Cayetano Alto, Loja 1101608, Ecuador
| | - Eduardo Valarezo
- Departamento de Química, Facultad de Ciencias Exactas y Naturales, Universidad Técnica Particular de Loja, San Cayetano Alto, Loja 1101608, Ecuador
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3
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Francis AO, Kevin OS, Ahmad Zaini MA. Vitex doniana seed activated carbon for methylene blue adsorption: equilibrium and kinetics. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2023; 25:1625-1635. [PMID: 36823750 DOI: 10.1080/15226514.2023.2179013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
This study evaluated the characteristics of zinc chloride modified vitex doniana seed activated carbon (VDZnCl2) for the removal of methylene blue. VDZnCl2 was characterized for textural properties, surface morphology and surface chemistry. Batch adsorption of methylene blue by VDZnCl2 was evaluated for the effects of concentration, contact time, adsorbent dosage, and solution pH. The surface area increased from 14 to 933 m2/g with porous texture to facilitate adsorption. The SEM micrograph showed varieties of pores with widened cavities. The FTIR spectra showed the characteristics of O-H and C=C groups commonly found in carbonaceous materials. The maximum methylene blue adsorption was recorded as 238 mg/g at concentration range of 1-800 mg/L and VDZnCl2 dosage of 50 mg. Sips isotherm fitted well with the equilibrium data, suggesting that the adsorption by VDZnCl2 was a physical process onto its heterogeneous surface, while the applicability of pseudo-first-order kinetics implies that external diffusion was the rate controlling mechanism. The performance put up by VDZnCl2 suggested that it is a potential adsorbent substitute for dye wastewater treatment.
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Affiliation(s)
| | | | - Muhammad Abbas Ahmad Zaini
- Centre of Lipids Engineering and Applied Research (CLEAR), Ibnu-Sina Institute for Scientific and Industrial Research (ISI-SIR), Universiti Teknologi Malaysia, Johor, Malaysia
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4
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Marrakchi F, Wei M, Cao B, Yuan C, Chen H, Wang S. Copyrolysis of microalga Chlorella sp. and alkali lignin with potassium carbonate impregnation for synergistic Bisphenol A plasticizer adsorption. Int J Biol Macromol 2023; 228:808-815. [PMID: 36549623 DOI: 10.1016/j.ijbiomac.2022.12.207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 12/07/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022]
Abstract
Composite functional materials offer promising opportunities for the development of tailored adsorbents with enhanced bioremediation potential towards toxic, carcinogenic endocrine disrupters such as Bisphenol A (BPA). Copyrolysis of microalga Chlorella sp. (CH) alkali lignin (L) with K2CO3 impregnation yielded a carbon-based composite (CHL-AC) with a micro-mesoporous structure of 0.643 cm3/g, surface area of 1414 m2/g, and BPA adsorption capacity of Qmax 316.858 mg/g. Enhanced BPA removal efficiency indicated a positive synergistic effect upon a combination of L and CH, resulting in a 73.24 % removal efficiency compared with the individual carbon components of 52.33 % for L-AC and 67.35 % for CH-AC. The kinetics and equilibrium results were described well by the pseudo second-order kinetic model and Freundlich isotherm, respectively. This paper elucidates the blending of microalgae and lignin into high-value carbon composite material, CHL-AC, with immense potential for the treatment of BPA-contaminated waters to contribute to Goal 6 (clean water and sanitation).
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Affiliation(s)
- F Marrakchi
- School of Energy and Power Engineering, Jiangsu University, Jiangsu 212013, China; AAU Energy, Aalborg University, Pontoppidanstræde 111, 9220 Aalborg, Denmark
| | - Manman Wei
- School of Energy and Power Engineering, Jiangsu University, Jiangsu 212013, China
| | - Bin Cao
- School of Energy and Power Engineering, Jiangsu University, Jiangsu 212013, China
| | - Chuan Yuan
- School of Energy and Power Engineering, Jiangsu University, Jiangsu 212013, China
| | - Hao Chen
- School of Energy and Power Engineering, Jiangsu University, Jiangsu 212013, China
| | - Shuang Wang
- School of Energy and Power Engineering, Jiangsu University, Jiangsu 212013, China.
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5
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Ren Z, Yang X, Zhang W, Zhao Z. Preparation, characterization and performance of a novel magnetic Fe-Zn activated carbon for efficient removal of dyes from wastewater. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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6
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Phey Phey ML, Tuan Abdullah TA, Md Ali UF, Mohamud MY, Ikram M, Nabgan W. Reverse water gas shift reaction over a Cu/ZnO catalyst supported on regenerated spent bleaching earth (RSBE) in a slurry reactor: the effect of the Cu/Zn ratio on the catalytic activity. RSC Adv 2023; 13:3039-3055. [PMID: 36756434 PMCID: PMC9850704 DOI: 10.1039/d2ra07617a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 01/09/2023] [Indexed: 01/20/2023] Open
Abstract
The catalytic conversion of CO2 via the Reverse Water Gas Shift (RWGS) reaction for CO production is a promising environment-friendly approach. The greenhouse gas emissions from burning fossil fuels can be used to produce valuable fuels or chemicals through CO2 hydrogenation. Therefore, this project was to study the CO2 conversion via RWGS over various Cu/ZnO catalysts supported by regenerated spent bleaching earth (RSBE) prepared by wet impregnation technique with different Cu : Zn ratios (0.5, 1.0, 1.5, 2.0, 3.0). The causes of environmental pollution from the disposal of spent bleaching earth (SBE) from an edible oil refinery can be eliminated by using it as catalyst support after the regeneration process. The synthesized catalysts were characterized by thermogravimetric analysis (TGA), X-ray diffraction (XRD), temperature-programmed reduction of hydrogen (TPR-H2), pyridine-adsorbed Fourier transform infrared (FTIR-pyridine), temperature programmed desorption of carbon dioxide (TPD-CO2), N2 physisorption, and Fourier transform infrared (FTIR) analysis. The RWGS reaction was carried out in a slurry reactor at 200 °C, with a pressure of 3 MPa, a residence time of 4 h, and catalyst loading of 1.0 g with an H2/CO2 ratio of 3. According to experimental data, the Cu/Zn ratio significantly impacts the catalytic structure and performance. The catalytic activity increased until the Cu : Zn ratio reached the maximum value of 1.5, while a further increase in Cu/Zn ratio inhibited the catalytic performance. The CZR3 catalyst (Cu/Zn ratio of 1.5) with a higher catalytic reducibility, high copper dispersion with small crystalline size, lower total pore volume as well as higher basicity showed superior catalytic performance in terms of CO2 conversion (40.67%) and CO yield (39.91%). Findings on the effect of reaction conditions revealed that higher temperature (>240 °C), higher pressure (>3 MPa), higher reaction time (>4 h) and higher catalyst loading (>1.25 g) could improve CO2 conversion to CO yield. A maximum CO2 conversion of 45.8% and multiple recycling stability of the catalyst were achieved, showing no significant decrease in CO2 conversion.
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Affiliation(s)
- Melissa Low Phey Phey
- Center of Hydrogen Energy, Institute of Future Energy, Universiti Teknologi Malaysia 81310 Skudai Johor Malaysia .,Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia 81310 Skudai Johor Malaysia
| | - Tuan Amran Tuan Abdullah
- Center of Hydrogen Energy, Institute of Future Energy, Universiti Teknologi Malaysia 81310 Skudai Johor Malaysia .,Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia 81310 Skudai Johor Malaysia
| | - Umi Fazara Md Ali
- Chemical Engineering Programme, Faculty of Chemical Engineering Technology, Universiti Malaysia PerlisKompleks Pusat Pengajian Jejawi 3, 02600 ArauPerlisMalaysia,Centre of Excellence Biomass Utilization (COEBU), Universiti Malaysia PerlisKompleks Pusat Pengajian Jejawi 3, 02600 ArauPerlisMalaysia
| | - Mohamed Yusuf Mohamud
- Center of Hydrogen Energy, Institute of Future Energy, Universiti Teknologi Malaysia 81310 Skudai Johor Malaysia .,Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia 81310 Skudai Johor Malaysia
| | - Muhammad Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore 54000 Punjab Pakistan
| | - Walid Nabgan
- Departament d'Enginyeria Química, Universitat Rovira i Virgili Av Països Catalans 26 43007 Tarragona Spain
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7
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Ullah N, Ali Z, Ullah S, Khan AS, Adalat B, Nasrullah A, Alsaadi M, Ahmad Z. Synthesis of activated carbon-surfactant modified montmorillonite clay-alginate composite membrane for methylene blue adsorption. CHEMOSPHERE 2022; 309:136623. [PMID: 36183883 DOI: 10.1016/j.chemosphere.2022.136623] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 08/28/2022] [Accepted: 09/25/2022] [Indexed: 06/16/2023]
Abstract
In this research work, a novel composite membrane was synthesized from activated carbon (AC) derived from sesban, sodium benzyl dodycyel sulphate (SBDS) treated montmorillonite (MMT) clay and alginate (alg) for the adsorption of methylene-blue (MB) dye. The AC-MMT-alg composite membranes were characterized using analytical characterizations such as FTIR, SEM, EDX and TGA analysis. Several important factors like initial solution pH, contact time, membrane dose, MB concentrations and temperature effect on the adsorption efficiency of membrane were investigated. MB dye adsorption on the synthesized membrane was explained well by pseudo second order equation. Isotherm study showed that MB adsorption data followed Langmuir adsorption isotherm model. The adsorption capacity of membrane for MB was 1429 mg/g from aqueous solution. Thermodynamic study confirmed endothermic and spontaneous MB adsorption on the adsorbent. The mechanistic path way indicated that electrostatic forces were involved in this adsorption process. The synthesized membrane proved an efficient adsorbent for MB adsorption from aqueous media.
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Affiliation(s)
- Nasim Ullah
- Department of Chemistry, Hazara University, Mansehra, Khyber Pakhtunkhwa, Pakistan
| | - Zarshad Ali
- Department of Chemistry, Hazara University, Mansehra, Khyber Pakhtunkhwa, Pakistan
| | - Saadat Ullah
- Department of Chemistry, Hazara University, Mansehra, Khyber Pakhtunkhwa, Pakistan
| | - Amir Sada Khan
- Department of Chemistry, University of Science and Technology Bannu-28100, Khyber Pakhtunkhwa, Pakistan.
| | - Bushra Adalat
- Department of Chemistry, Hazara University, Mansehra, Khyber Pakhtunkhwa, Pakistan
| | - Asma Nasrullah
- Department of Chemistry, University of Science and Technology Bannu-28100, Khyber Pakhtunkhwa, Pakistan
| | - Mustafa Alsaadi
- Department of Chemical Engineering, University of Jeddah, Jeddah, Saudi Arabia
| | - Zubair Ahmad
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 712-749, Republic of Korea.
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8
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Novikau R, Lujaniene G. Adsorption behaviour of pollutants: Heavy metals, radionuclides, organic pollutants, on clays and their minerals (raw, modified and treated): A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 309:114685. [PMID: 35151139 DOI: 10.1016/j.jenvman.2022.114685] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 01/06/2022] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
The increasing anthropogenic pressure results in environmental pollution and thus adversely affects the integrity of ecosystems. Consequently, various methods of removing pollutants from effluents have been developed and used to minimise this negative impact, with adsorption on clay minerals identified as the most promising approach. This review examines the adsorption of heavy metals, radionuclides, and organic pollutants on clays/clay minerals and their composites under diverse conditions and deals with the applications of these materials in the construction of engineering barriers for waste management. Additionally, we discuss the efficiency and mechanisms of pollutant adsorption on clays subjected to various treatments and modifications while describing the beneficial effects of such modification/treatment on adsorption performance, reusability, and in vivo/in vitro toxicity.
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Affiliation(s)
- Raman Novikau
- Department of Environmental Research, State Research Institute Center for Physical Sciences and Technology, Savanoriu Ave. 231, Vilnius, 02300, Lithuania.
| | - Galina Lujaniene
- Department of Environmental Research, State Research Institute Center for Physical Sciences and Technology, Savanoriu Ave. 231, Vilnius, 02300, Lithuania.
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9
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Construction of the micro-electrolysis system by Fe0 and clay-carbon derived from oil refining for the removal of ozone disinfection by-products. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.128224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Marrakchi F, Fazeli Zafar F, Wei M, yuan C, Cao B, Wang S. N-doped mesoporous H3PO4–pyrocarbon from seaweed and melamine for batch adsorption of the endocrine disruptor bisphenol A. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117040] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Jaramillo-Fierro X, González S, Medina F. La-Doped ZnTiO 3/TiO 2 Nanocomposite Supported on Ecuadorian Diatomaceous Earth as a Highly Efficient Photocatalyst Driven by Solar Light. Molecules 2021; 26:6232. [PMID: 34684814 PMCID: PMC8537966 DOI: 10.3390/molecules26206232] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/09/2021] [Accepted: 10/11/2021] [Indexed: 11/16/2022] Open
Abstract
Currently, there is great interest in the use of TiO2 for photocatalytic remediation of wastewater. Doping, heterojunction, and immobilization on porous materials are effective methods to improve the photocatalytic efficiency of this semiconductor oxide. In this study, ZnTiO3/TiO2 (ZTO) and ZnTiO3/TiO2/La (ZTO/La) nanocomposites were successfully prepared and immobilized on diatomaceous earth (DE). The composition and texture of the composites prepared were characterized by X-ray diffraction (XRD), X-ray fluorescence (XRF), diffuse reflectance spectroscopy (DRS), scanning electron microscopy (SEM-EDX), and specific surface area (SSA). The adsorption capacity and photocatalytic activity of the composites were determined via degradation of methylene blue (MB) in batch reactors. The materials evaluated were prepared in the shape of 0.2 cm (diameter) and 1.0 cm (length) cylindrical extrudates. The results indicate that the ZTO/La-DE composite exhibited higher efficiency for the removal of MB under solar irradiation than both ZTO-DE and DE. The pseudo-second-order model and the Langmuir isotherm model were better suited to explain the adsorption process. The highest degradation percentage of MB obtained was 96% after 150 min of irradiation. The results indicate that synthesized composite could be used for the removal of cationic dyes in wastewater.
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Affiliation(s)
- Ximena Jaramillo-Fierro
- Departament d’Enginyería Química, Universitat Rovira i Virgili, Av. Països Catalans 26, 43007 Tarragona, Spain;
- Departamento de Química y Ciencias Exactas, Universidad Técnica Particular de Loja, San Cayetano Alto, Loja 1101608, Ecuador;
| | - Silvia González
- Departamento de Química y Ciencias Exactas, Universidad Técnica Particular de Loja, San Cayetano Alto, Loja 1101608, Ecuador;
| | - Francesc Medina
- Departament d’Enginyería Química, Universitat Rovira i Virgili, Av. Països Catalans 26, 43007 Tarragona, Spain;
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12
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Verification of pore size effect on aqueous-phase adsorption kinetics: A case study of methylene blue. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127119] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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13
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Wang ER, Shih KY. Facile Microwave Hydrothermal Synthesis of ZnFe 2O 4/rGO Nanocomposites and Their Ultra-Fast Adsorption of Methylene Blue Dye. MATERIALS (BASEL, SWITZERLAND) 2021; 14:5394. [PMID: 34576618 PMCID: PMC8467475 DOI: 10.3390/ma14185394] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 09/12/2021] [Accepted: 09/14/2021] [Indexed: 12/05/2022]
Abstract
The industry development in the last 200 years has led to to environmental pollution. Dyes emitted by pharmaceutical and other industries are major organic pollutants. Organic dyes are a pollutant that must be removed from the environment. In this work, we adopt a facile microwave hydrothermal method to synthesize ZnFe2O4/rGO (ZFG) adsorbents and investigate the effect of synthesis temperature. The crystal structure, morphology, chemical state, and magnetic property of the nanocomposite are investigated by X-ray diffraction, Raman spectroscopy, Fourier transform infrared spectroscopy, transmission electron microscopy, and a vibrating sample magnetometer. Furthermore, the synthesized ZFGs are used to remove methylene blue (MB) dye, and the adsorption kinetics, isotherm, mechanism, and reusability of this nanomaterial are studied. The optimal ZFG nanocomposite had a dye removal percentage of almost 100%. The fitting model of adsorption kinetics followed the pseudo-second-order model. The isotherm model followed the Langmuir isotherm and the theoretical maximum adsorption capacity of optimal ZFG calculated by this model was 212.77 mg/g. The π-π stacking and electrostatic interaction resulted in a high adsorption efficiency of ZFG for MB adsorption. In addition, this nanocomposite could be separated by a magnet and maintain its dye removal percentage at almost 100% removal after eight cycles, which indicates its high suitability for utilization in water treatment.
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Affiliation(s)
| | - Kun-Yauh Shih
- Department of Applied Chemistry, National Pingtung University, Pingtung County 90003, Taiwan;
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14
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Yadav A, Bagotia N, Sharma AK, Kumar S. Advances in decontamination of wastewater using biomass-basedcomposites: A critical review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 784:147108. [PMID: 33892326 DOI: 10.1016/j.scitotenv.2021.147108] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/07/2021] [Accepted: 04/08/2021] [Indexed: 06/12/2023]
Abstract
Contaminant removal from wastewater using natural biosorbents has been widely studied as a suitable and environmentally benign alternative for conventional techniques. Currently, researchers are working on various biomass-based composites for wastewater remediation to improve the performance of natural biosorbents. This review takes into focus a wide range of biomass-based composites like hydrogel composites, metal oxide composites, magnetic composites, polymer composites, carbon nanotubes (CNTs) and graphene composites, metal organic framework composites (MOFs) and clay composites for the removal of various contaminants from wastewater. It is evident from the literature survey that the composite fabrication involves the modification of morphological and textural features of the biomass which results in significant enhancement of adsorption capacity. Apart from this, regeneration of the used biomass-based composite is also studied in depth in order to overcome the problem of solid waste generation. This review would prove to be beneficial for researchers who are currently focusing on the development of cost-effective, easily available, recyclable biomass-based composites with enhanced adsorption capacities for wastewater treatment.
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Affiliation(s)
- Aruna Yadav
- Department of Chemistry, Chaudhary Bansi Lal University, Bhiwani 127021, Haryana, India
| | - Nisha Bagotia
- Department of Chemistry, Chaudhary Bansi Lal University, Bhiwani 127021, Haryana, India
| | - Ashok K Sharma
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science and Technology, Murthal, Sonepat 131039, Haryana, India
| | - Surender Kumar
- Department of Chemistry, Chaudhary Bansi Lal University, Bhiwani 127021, Haryana, India.
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15
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Jaramillo-Fierro X, González S, Montesdeoca-Mendoza F, Medina F. Structuring of ZnTiO 3/TiO 2 Adsorbents for the Removal of Methylene Blue, Using Zeolite Precursor Clays as Natural Additives. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:898. [PMID: 33915750 PMCID: PMC8067086 DOI: 10.3390/nano11040898] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 03/21/2021] [Accepted: 03/26/2021] [Indexed: 12/23/2022]
Abstract
Adsorption is an effective method of removing harmful pollutants from air and water. In the present study, zeolites prepared by sol-gel method from two Ecuadorian clays were combined with precursor clays and the ZnTiO3/TiO2 semiconductor for adsorbing methylene blue (MB) as a water contaminant. The synthesized compounds were characterized using powder X-ray diffraction, X-ray fluorescence, scanning electron microscopy, energy dispersive X-ray, and surface area measurement. These compounds were combined to form cylindrical extrudates of 0.2 cm (diameter) and 1.0 cm (length). The adsorption characteristics of the composites were measured using batch sorption studies as a function of pH, initial concentration, and contact time. The pseudo-second-order model and the Langmuir isotherm model were better suited to the adsorption process. The equilibrium state was achieved around 180 min of adsorption, and a pH of 7 was established as the optimal operating condition. The maximum adsorption values of the dye were obtained with the composites derived from G-Clay, whose average adsorption capacity was 46.36 mg g-1, in contrast with composites derived from R-Clay, whose average adsorption value was 36.24 mg g-1. The results reflect that synthesized composites could be used potentially for the removal of cationic dye from wastewater.
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Affiliation(s)
- Ximena Jaramillo-Fierro
- Departamento de Química y Ciencias Exactas, Universidad Técnica Particular de Loja, San Cayetano Alto, Loja 11-01-608, Ecuador; (S.G.); (F.M.-M.)
- Departamento d’Enginyería Química, Universitat Rovira i Virgili, Av Països Catalans 26, 43007 Tarragona, Spain;
| | - Silvia González
- Departamento de Química y Ciencias Exactas, Universidad Técnica Particular de Loja, San Cayetano Alto, Loja 11-01-608, Ecuador; (S.G.); (F.M.-M.)
| | - Fernando Montesdeoca-Mendoza
- Departamento de Química y Ciencias Exactas, Universidad Técnica Particular de Loja, San Cayetano Alto, Loja 11-01-608, Ecuador; (S.G.); (F.M.-M.)
| | - Francesc Medina
- Departamento d’Enginyería Química, Universitat Rovira i Virgili, Av Països Catalans 26, 43007 Tarragona, Spain;
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16
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Comparative study of adsorption polysaccharide on bioactive components and in vitro antioxidant activity of sea buckthorn (Hippophaë rhamnoides L.) pulp oil. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.110896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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Hassan MM, Carr CM. Biomass-derived porous carbonaceous materials and their composites as adsorbents for cationic and anionic dyes: A review. CHEMOSPHERE 2021; 265:129087. [PMID: 33280840 DOI: 10.1016/j.chemosphere.2020.129087] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/18/2020] [Accepted: 11/20/2020] [Indexed: 06/12/2023]
Abstract
Currently used textile dyes are not highly toxic or carcinogenic, but the intense and persistent color of the effluent is problematic. Of the remediation processes investigated, the adsorption process is attractive, and carbonaceous adsorbents (CAs) are ideal for that purpose because of their very high dye-binding capacity (DBC). In this review, the potential of biomass-based feedstocks to produce CAs and the application of the produced adsorbents for the removal of various types of dyes from effluent have been compiled and critically reviewed. The effect of preparation conditions on the surface area, porosity, pore volume, and chemical characteristics of the produced CAs has been outlined and discussed. The DBC of various CAs at the optimum conditions has been compiled, and dye-binding mechanisms, dye sorption isotherm models, the stability of adsorbents, and regeneration methods of CAs are discussed. The analysis of the compiled dye-adsorption data shows that the dye-adsorption capacity of some CAs derived from biomasses and their composites is considerably higher than the commercially available activated carbon (AC) adsorbents. For example, a commercial AC (Filtrasorb-400) showed 400 mg/g DBC for the C.I. Reactive Red 120 dye. Conversely, the CS-DB adsorbent showed excellent anionic and cationic DBC for C.I. Direct Red 28 and C.I. Basic Green 4 dyes, 20317 and 12502 mg/g respectively. The porous carbon/polyvinyl alcohol hydrogel and GO/zeolitic imidazolate framework composite adsorbents exhibited dye-adsorption capacity as high as 13381.6 and 3300 mg/g respectively. The pore volume and functional groups of dyes are the deciding factors in achieving high dye adsorption.
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Affiliation(s)
- Mohammad M Hassan
- Bioproduct and Fiber Technology Team, AgResearch Limited, 1365 Springs Road, Lincoln, Christchurch, 7674, New Zealand.
| | - Christopher M Carr
- The Clothworkers' Center for Textile Materials Innovation for Healthcare, University of Leeds, Leeds, LS2 5JQ, United Kingdom
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18
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Mesoporous biohybrid epichlorohydrin crosslinked chitosan/carbon–clay adsorbent for effective cationic and anionic dyes adsorption. Int J Biol Macromol 2020; 163:1079-1086. [DOI: 10.1016/j.ijbiomac.2020.07.032] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/24/2020] [Accepted: 07/04/2020] [Indexed: 12/11/2022]
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19
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Jawad AH, Abdulhameed AS, Malek NNA, ALOthman ZA. Statistical optimization and modeling for color removal and COD reduction of reactive blue 19 dye by mesoporous chitosan-epichlorohydrin/kaolin clay composite. Int J Biol Macromol 2020; 164:4218-4230. [PMID: 32861784 DOI: 10.1016/j.ijbiomac.2020.08.201] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/15/2020] [Accepted: 08/26/2020] [Indexed: 12/11/2022]
Abstract
In current research work, chitosan (Chi) was subjected to subsequent physical and chemical modifications by incorporating kaolin clay (KA) into its polymeric structure, and crosslinking process with a covalent cross-linker namely epichlorohydrin (ECH) respectively. The final product of crosslinked chitosan-epichlorohydrin/kaolin (Chi-ECH/KA) composite was successfully applied for color removal and chemical oxygen demand (COD) reduction of textile dye namely reactive blue 19 dye (RB19) from aqueous environment. The influence of pertinent parameters, i.e. A: Chi-ECH/KA dose (0.02-0.1 g), B: pH (4-10), and C: time (5-30 min) on the RB19 color removal and COD reduction were statistically optimized by using response surface methodology with Box-Behnken design (RSM-BBD). The experimental data of the adsorption kinetic and the adsorption isotherm demonstrated a better fitness to pseudo-second order model and Langmuir isotherm model respectively. Excellent absorption ability of 560.9 mg/g was recorded for Chi-ECH/KA composite. The calculated thermodynamic functions clarified that the RB19 adsorption process was endothermic and spontaneous in nature. The mechanism of RB19 adsorption onto the Chi-ECH/KA may include electrostatic interactions, hydrogen bonding, Yoshida H-bonding, and n-π interactions. This study introduces Chi-ECH/KA composite as an eco-friendly, potential and multi-function composite bio adsorbent for removal of textile dye and COD reduction from aqueous environment.
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Affiliation(s)
- Ali H Jawad
- Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia.
| | - Ahmed Saud Abdulhameed
- Department of Chemistry, College of Education for Pure Science (Ibn Al-Haitham), University of Baghdad, Baghdad, Iraq
| | - Nurul Najwa Abd Malek
- Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
| | - Zeid A ALOthman
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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20
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Liu L, Li Y, Yoza BA, Hao K, Li QX, Li Y, Wang Q, Guo S, Chen C. A char-clay composite catalyst derived from spent bleaching earth for efficient ozonation of recalcitrants in water. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 699:134395. [PMID: 31678886 DOI: 10.1016/j.scitotenv.2019.134395] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 09/08/2019] [Accepted: 09/09/2019] [Indexed: 06/10/2023]
Abstract
Catalytic ozonation is an efficient process that can be utilized to degrade recalcitrant organics. Char-clay composite derived from refinery spent bleaching earth (SBE) is an economical and readily available catalyst that can be used during the ozonation treatment of recalcitrants in wastewater. Four catalysts of SBE-N2-650, SBE-N2-850, SBE-O2-650, and SBE-O2-850 were prepared by heating the SBE at 650 and 850 °C under N2 or O2 conditions. High surface OH sites in the SBE-N2-650 and SBE-O2-650 relative to the SBE-N2-850 and SBE-O2-850 resulted in an increase in catalytic activity. Additional carbon (C), that existed in the SBE-N2-650 and SBE-N2-850, had a positive effect on catalytic activity. The SBE-N2-650 exhibited the highest activity among those prepared catalysts. During catalytic ozonation, the SBE-N2-650 increased the mineralization rate of benzoic acid by 36% when compared with single ozonation. Molecular ozone was decomposed at the surface active sites on SBE-N2-650, generating active •OH, •O2-, or 1O2 species. Gas and liquid products having calorific values that are generated during SBE-N2-650 preparation can be further utilized. This study introduces a potential use of SBE for the ozonation treatment of recalcitrant wastewaters.
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Affiliation(s)
- Lu Liu
- State Key Laboratory of Petroleum Pollution Control, , State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Yi Li
- State Key Laboratory of Petroleum Pollution Control, , State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Brandon A Yoza
- Hawaii Natural Energy Institute, University of Hawaii at Manoa, Honolulu, HI 96822, USA
| | - Kanghong Hao
- State Key Laboratory of Petroleum Pollution Control, , State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI 96822, USA
| | - Yiming Li
- State Key Laboratory of Petroleum Pollution Control, , State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Qinghong Wang
- State Key Laboratory of Petroleum Pollution Control, , State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Shaohui Guo
- State Key Laboratory of Petroleum Pollution Control, , State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Chunmao Chen
- State Key Laboratory of Petroleum Pollution Control, , State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China.
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21
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Activated carbons by zinc chloride activation for dye removal – a commentary. ACTA CHIMICA SLOVACA 2018. [DOI: 10.2478/acs-2018-0015] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Zinc chloride is a commonly used activator in chemical activation of activated carbon. Various carbonaceous materials have been studied as potential source of activated carbon. The operating conditions are manipulated with attention to improve the properties and performance of activated carbon in the adsorption of water pollutants. However, the generalized attributes of zinc chloride activation in relation to the adsorptive performance of activated carbon are not well documented in much of published literature. Therefore, the present work is aimed to highlight the activation strategies and mechanisms of zinc chloride activation of activated carbon. The roles of impregnation ratio, period of activation and temperature are discussed to offer some insight into textural characteristics of activated carbon. The case studies on methylene blue adsorption are integrated to shed light on the external factors affecting the adsorption.
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22
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Wang M, Xie R, Chen Y, Pu X, Jiang W, Yao L. A novel mesoporous zeolite-activated carbon composite as an effective adsorbent for removal of ammonia-nitrogen and methylene blue from aqueous solution. BIORESOURCE TECHNOLOGY 2018; 268:726-732. [PMID: 30149316 DOI: 10.1016/j.biortech.2018.08.037] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 08/06/2018] [Accepted: 08/08/2018] [Indexed: 06/08/2023]
Abstract
A mesoporous zeolite-activated carbon composite (Z-AC) was prepared by hydrothermal synthesis method for both ammonia-nitrogen (NH3-N) and methylene blue (MB) removal from aqueous solution. For Z-AC with the reparation temperature of 90 °C and kaolin/AC = 4, the adsorption capacity of MB (754.75 mg/g, 298 K) was 83% of that for pure AC, and the adsorption capacity of NH3-N were 9.00 mg/g, which was higher than that for AC and Z (the kaolin after hydrothermal treatment). The Z-AC exhibited obvious mesoporous structure, the SBET of the Z-AC (378 cm2/g) was 31% of that for AC (1215 cm2/g). The introduction of a small amount of AC into Z increased the SBET of Z, thus, the adsorption capacity of MB was improved dramatically. On the other hand, the dispersion of Z was enhanced by adding AC, which promoted the contact between Z and NH3-N, and then led to improvement of the NH3-N adsorption.
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Affiliation(s)
- Min Wang
- College of Architecture and Environment, Sichuan University, Chengdu 610065, PR China
| | - Ruzhen Xie
- College of Architecture and Environment, Sichuan University, Chengdu 610065, PR China
| | - Yao Chen
- College of Architecture and Environment, Sichuan University, Chengdu 610065, PR China
| | - Xiaoqin Pu
- College of Architecture and Environment, Sichuan University, Chengdu 610065, PR China
| | - Wenju Jiang
- College of Architecture and Environment, Sichuan University, Chengdu 610065, PR China; National Engineering Research Center for Flue Gas Desulfurization, Chengdu 610065, PR China
| | - Lu Yao
- College of Architecture and Environment, Sichuan University, Chengdu 610065, PR China; National Engineering Research Center for Flue Gas Desulfurization, Chengdu 610065, PR China.
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