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Joshi B, Khalil AM, Zhang S, Memon FA, Yang Z. Application of 2D MoS 2 Nanoflower for the Removal of Emerging Pollutants from Water. ACS ENGINEERING AU 2023; 3:461-476. [PMID: 38144680 PMCID: PMC10739627 DOI: 10.1021/acsengineeringau.3c00032] [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: 07/17/2023] [Revised: 09/20/2023] [Accepted: 09/22/2023] [Indexed: 12/26/2023]
Abstract
Two-dimensional (2D) nanomaterial-MoS2 (molybdenum disulfide) has gained interest among researchers, owing to its exceptional mechanical, biological, and physiochemical properties. This paper reports on the removal of organic dyes and an emerging contaminant, Ciprofloxacin, by a 2D MoS2 nanoflower as an adsorbent. The material was prepared by a green hydrothermal technique, and its high Brunauer-Emmett-Teller-specific area of 185.541m2/g contributed to the removal of 96% rhodamine-B dye and 85% Ciprofloxacin. Various characterizations, such as X-ray diffraction, scanning electron microscopy linked with energy-dispersive spectroscopy, and transmission electron microscopy, revealed the nanoflower structure with good crystallinity. The feasibility and efficacy of 2D MoS2 nanoflower as a promising adsorbent candidate for the removal of emerging pollutants was confirmed in-depth in batch investigations, such as the effects of adsorption time, MoS2 dosages, solution pH, and temperature. The adsorption mechanism was further investigated based on thermodynamic calculations, adsorption kinetics, and isotherm modeling. The results confirmed the exothermic nature of the enthalpy-driven adsorption as well as the fast kinetics and physisorption-controlled adsorption process. The recyclability potential of 2D MoS2 exceeds four regeneration recycles. MoS2 nanoflower has been shown to be an effective organic pollutant removal adsorbent in water treatment.
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Affiliation(s)
- Bhavya Joshi
- Faculty of Environment, Science
and Economy, University of Exeter, Exeter EX4 4QF, U.K.
| | - Ahmed M.E. Khalil
- Faculty of Environment, Science
and Economy, University of Exeter, Exeter EX4 4QF, U.K.
| | - Shaowei Zhang
- Faculty of Environment, Science
and Economy, University of Exeter, Exeter EX4 4QF, U.K.
| | - Fayyaz A. Memon
- Faculty of Environment, Science
and Economy, University of Exeter, Exeter EX4 4QF, U.K.
| | - Zhuxian Yang
- Faculty of Environment, Science
and Economy, University of Exeter, Exeter EX4 4QF, U.K.
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2
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He Y, Zheng Y, Liu X, Liu C, Zhang H, Han J. Polyvinyl Alcohol-Citric Acid: A New Material for Green and Efficient Removal of Cationic Dye Wastewater. Polymers (Basel) 2023; 15:4341. [PMID: 38006066 PMCID: PMC10675270 DOI: 10.3390/polym15224341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 10/31/2023] [Accepted: 11/04/2023] [Indexed: 11/26/2023] Open
Abstract
The citric acid (CA) cross-linked polyvinyl alcohol (PVA) adsorbent, PVA-CA, was efficiently synthesized and its application to the removal of dyes in water, particularly the cationic dye, methylene blue (MB), was thoroughly investigated. The morphologies and physiochemical characteristics of PVA-CA were fully characterized by SEM, FT-IR, XRD, TGA, BET, and XPS. The effects of contact time, adsorbent dosage, MB concentration, solution pH, and temperature on the adsorption performance were compared using controllable methods. The maximum adsorption capacity of PVA-CA was 709.86 mg g-1 and the removal rate remained high through several adsorption-desorption cycles, demonstrating that such a composite absorbent has a good adsorption performance and recoverability. Further analysis by the density functional theory (DFT) showed that van der Waals interactions, electrostatic interactions and hydrogen bonding interactions between PVA-CA and MB played significant roles in the adsorption mechanism.
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Affiliation(s)
- Ye He
- School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, China
| | - Yangyang Zheng
- School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, China
| | - Xia Liu
- Shandong Nonmetallic Materials Institute, Jinan 250031, China
| | - Chang Liu
- School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, China
| | - Huacheng Zhang
- School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, China
| | - Jie Han
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China
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Wang A, Lu Y, Mou B, Zhang H, Wang Q, Hui A. 混维凹凸棒石黏土全矿物利用研究现状与展望. CHINESE SCIENCE BULLETIN-CHINESE 2022. [DOI: 10.1360/tb-2022-0486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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4
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Jo HS, Kim H, Yoon SY. Synthesis and Characterization of Mesoporous Aluminum Silicate and Its Adsorption for Pb (II) Ions and Methylene Blue in Aqueous Solution. MATERIALS 2022; 15:ma15103562. [PMID: 35629587 PMCID: PMC9143537 DOI: 10.3390/ma15103562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/06/2022] [Accepted: 05/13/2022] [Indexed: 11/16/2022]
Abstract
Aluminum silicate powder was prepared using two different syntheses: (1) co-precipitation and (2) two-step sol-gel method. All synthesized powders were characterized by various techniques including XRD, FE-SEM, FT-IR, BET, porosimeter, and zetasizer. The particle morphology of the synthesized aluminum silicate powder was greatly different depending on the synthesis. The synthesized aluminum silicate powder by co-precipitation had a low specific surface area (158 m2/g) and the particle appeared to have a sharp edge, as though in a glassy state. On the other hand, synthesized aluminum silicate powder by the two-step sol-gel method had a mesoporous structure and a large specific surface area (430 m2/g). The aluminum silicate powders as adsorbents were characterized for their adsorption behavior towards Pb (II) ions and methylene blue in an aqueous solution performed in a batch adsorption experiment. The maximum adsorption capacities of Pb (II) ions and methylene blue onto the two-step sol-gel method powder were over four-times and seven-times higher than that of the co-precipitation powder, respectively. These results show that the aluminum silicate powder synthesized with a two-step sol-gel method using ammonia can be a potential adsorbent for removing heavy metal ions and organic dyes from an aqueous solution.
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Lan D, Zhu H, Zhang J, Li S, Chen Q, Wang C, Wu T, Xu M. Adsorptive removal of organic dyes via porous materials for wastewater treatment in recent decades: A review on species, mechanisms and perspectives. CHEMOSPHERE 2022; 293:133464. [PMID: 34974043 DOI: 10.1016/j.chemosphere.2021.133464] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 12/04/2021] [Accepted: 12/27/2021] [Indexed: 06/14/2023]
Abstract
Organic dyes, a type of high toxic and carcinogenic chemicals that present severe threats to human and aquatic life, are the most commonly seen organic pollutants in wastewater of industries such as textile, rubber, cosmetic industry etc. Various techniques for the removal of dyes are compared in this review. Adsorption has proven to be a facile and promising approach for the removal of dyes in wastewater. This work focuses on the latest development of various porous materials for the adsorption of organic dyes. The characteristics, functionalization and modification of different porous materials are also presented. Furthermore, adsorption behaviors and mechanism of these adsorbents in the adsorption of organic dyes are critically reviewed. Finally, challenges and opportunities for future research in the development of novel materials for the highly efficient removal of dyes are proposed.
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Affiliation(s)
- Dawei Lan
- New Materials Institute, The University of Nottingham Ningbo China, Ningbo, 315100, PR China; Key Laboratory of Carbonaceous Wastes Processing and Process Intensification of Zhejiang Province, The University of Nottingham Ningbo China, Ningbo, 315100, China
| | - Huiwen Zhu
- New Materials Institute, The University of Nottingham Ningbo China, Ningbo, 315100, PR China; Key Laboratory of Carbonaceous Wastes Processing and Process Intensification of Zhejiang Province, The University of Nottingham Ningbo China, Ningbo, 315100, China
| | - Jianwen Zhang
- New Materials Institute, The University of Nottingham Ningbo China, Ningbo, 315100, PR China; Key Laboratory of Carbonaceous Wastes Processing and Process Intensification of Zhejiang Province, The University of Nottingham Ningbo China, Ningbo, 315100, China
| | - Shuai Li
- New Materials Institute, The University of Nottingham Ningbo China, Ningbo, 315100, PR China; Key Laboratory of Carbonaceous Wastes Processing and Process Intensification of Zhejiang Province, The University of Nottingham Ningbo China, Ningbo, 315100, China
| | - Quhan Chen
- New Materials Institute, The University of Nottingham Ningbo China, Ningbo, 315100, PR China; Key Laboratory of Carbonaceous Wastes Processing and Process Intensification of Zhejiang Province, The University of Nottingham Ningbo China, Ningbo, 315100, China
| | - Chenxi Wang
- New Materials Institute, The University of Nottingham Ningbo China, Ningbo, 315100, PR China; Key Laboratory of Carbonaceous Wastes Processing and Process Intensification of Zhejiang Province, The University of Nottingham Ningbo China, Ningbo, 315100, China
| | - Tao Wu
- New Materials Institute, The University of Nottingham Ningbo China, Ningbo, 315100, PR China; Key Laboratory of Carbonaceous Wastes Processing and Process Intensification of Zhejiang Province, The University of Nottingham Ningbo China, Ningbo, 315100, China.
| | - Mengxia Xu
- New Materials Institute, The University of Nottingham Ningbo China, Ningbo, 315100, PR China; Key Laboratory of Carbonaceous Wastes Processing and Process Intensification of Zhejiang Province, The University of Nottingham Ningbo China, Ningbo, 315100, China
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Mangla D, Sharma A, Ikram S. Critical review on adsorptive removal of antibiotics: Present situation, challenges and future perspective. JOURNAL OF HAZARDOUS MATERIALS 2022; 425:127946. [PMID: 34891019 DOI: 10.1016/j.jhazmat.2021.127946] [Citation(s) in RCA: 72] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/24/2021] [Accepted: 11/26/2021] [Indexed: 05/27/2023]
Abstract
This review gives a proper dedicated understanding of the contamination level, sources, and biological dangers related with different classes of antibiotics in consumable water. The literature on the adsorption of antibiotics is relatively uncommon and developments are still under progression, especially for adsorbents other than activated carbon. Also, adsorption technique has already been applied vastly for water treatment. Notwithstanding significant progressions, designed natural wastewater treatment frameworks are just bearably effective (48-77%) in the expulsion of antibiotics. Hence, the compilation of available literature especially for antibiotic adsorption was much needed. Moreover, the conventional adsorbents have some limitations of their own. In this study, the main focus was laid on unconventional adsorbents such as Biochar, Biopolymers, Carbon Nanotubes, Clays, Metal-Organic Frameworks, Microalgae and some miscellaneous adsorbents. The mechanism of adsorption by the unconventional adsorbents includes electrostatic interactions, π-π bonding, weak Van der Waal forces, H-bonding and surface complexation, which was similar to that of conventional adsorbents and hence these unconventional adsorbents can easily replace the costlier conventional adsorbents with even better adsorption efficiency. This paper also briefly discussed the thermodynamics, adsorption equilibrium; isotherm and kinetics of adsorption. This review paper seizes the critical advances of adsorption phenomenon at various interfaces and lays the foundation for current scenario associated with further progress. Besides, this study would help in understanding the antibiotic adsorption, cost estimation and future goals that will attract the young the researchers of this field.
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Affiliation(s)
- Divyanshi Mangla
- Bio/Polymer Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Atul Sharma
- Environmental Chemistry Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Saiqa Ikram
- Bio/Polymer Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India.
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7
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Lazaratou CV, Triantaphyllidou IE, Pantelidis I, Chalkias DA, Kakogiannis G, Vayenas DV, Papoulis D. Using raw and thermally modified fibrous clay minerals as low concentration NH 4+-N adsorbents. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:17737-17756. [PMID: 34676475 DOI: 10.1007/s11356-021-17107-z] [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: 06/23/2021] [Accepted: 10/14/2021] [Indexed: 06/13/2023]
Abstract
Raw and modified fibrous clay minerals palygorskite (Pal) and sepiolite (Sep) were tested for their ability to remove ammonium from ammonium polluted water. Palygorskite and sepiolite underwent thermal treatment at 400°C (T-Pal and T-Sep respectively). Raw and thermally treated samples were characterized using XRD, SEM, BET, FTIR, TGA, zeta potential, and XRF. The techniques verified the effect of thermal treatment on sample structures and the enhancement of negative charge. Both raw and thermally activated materials were applied in batch kinetic experiments, and found to be efficient adsorbents in their raw forms, since Pal and Sep achieved 60 and 80% NH4+-N removal respectively within 20 min of contact for initial NH4+-N concentration of 4 mg/L. Similar removal rates were gained for other concentrations representative of contaminated aquifers that were examined, ranging from 1 to 8 mg/L. Results for the modified T-Pal and T-Sep minerals showed up to 20% higher removal rate. Saturation tests indicated the positive effect of thermal treatment on the minerals since T-Pal and T-Sep removal efficiency reached 85% and remained stable for 24 h. However, competitive ions in real water samples can influence the NH4+-N removal efficiency of the examined samples. At almost all the examined samples, the nonlinear Freundlich isotherm and linear pseudo-second kinetic models showed better fitted all examined samples thus indicating heterogeneous chemisorption.
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Affiliation(s)
| | | | | | - Dimitris A Chalkias
- Nanotechnology & Advanced Materials Laboratory, Department of Electrical and Computer Engineering, University of Peloponnese, GR-26334, Patras, Greece
| | | | - Dimitrios V Vayenas
- Department of Chemical Engineering, University of Patras, GR-26504, Patras, Greece
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology, PO Box 1414, 26504, Patras, GR, Greece
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8
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Zhao Y, Wang Y, Wang F, Meng J, Zhang H, Liang J. In-situ preparation of palygorskite-montmorillonite materials from palygorskite mineral via hydrothermal process for high-efficient adsorption of aflatoxin B1. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.119960] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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9
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Pérez-Calderón J, Scian A, Ducos M, Santos V, Zaritzky N. Performance of oxalic acid-chitosan/alumina ceramic biocomposite for the adsorption of a reactive anionic azo dye. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:67032-67052. [PMID: 34244931 DOI: 10.1007/s11356-021-15123-7] [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: 02/12/2021] [Accepted: 06/21/2021] [Indexed: 06/13/2023]
Abstract
A biocomposite system was developed and tested for the removal of the azo dye Reactive Red (RR195) from wastewater. The biocomposite was synthesized using ceramic particles containing 75% alumina which were coated using chitosan cross-linked with oxalic acid. The biocomposite showed high performance at low pH (maximum adsorption capacity = 345.3mg.g-1 at pH=2.0). The physicochemical and structure characteristics of the matrix were evaluated by Z-potential, FTIR-ATR, SEM-EDS, XRD, and porosity. Langmuir sorption isotherm and pseudosecond-order model gave the best fit. The electrostatic interaction between RR195 (due to the sulfonate groups) and the free amino groups of chitosan, enabled successive desorption/regeneration cycles. The maximum removal percentage (>80%) occurred at pH=2.0 due to the cross-linking effect. Experiments at different temperatures allowed the calculation of thermodynamic parameters (ΔG, ΔS, ΔH); adsorption was spontaneous, exothermic, and enthalpy controlled. The presence of inorganic ions ([Formula: see text] ) was analyzed during the adsorption process. This novel biocomposite can be applied as a cost-effective and environmentally friendly adsorbent for anionic azo dye removal from wastewater. The application of chitosan cross-linked with oxalic acid as a coating of the ceramic support enhanced the adsorption capacity and enabled its use under acidic conditions without solubilization.
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Affiliation(s)
- John Pérez-Calderón
- CIDCA (Centro de Investigación y Desarrollo en Criotecnología de Alimentos) CONICET-Facultad de Ciencias Exactas, UNLP, CIC-PBA, Calle 47 y 116, La Plata, 1900, Buenos Aires, Argentina
| | - Alberto Scian
- CETMIC (Centro de Tecnología de Recursos Minerales y Cerámica) CONICET- CIC-PBA, Gonnet, La Plata, Argentina
| | - Martin Ducos
- IPATEC (Instituto Andino Patagónico de Tecnologías Biológicas y Geoambientales) CONICET, Universidad Nacional del Comahue, Quintral, 1250, Bariloche, Argentina
| | - Victoria Santos
- IPATEC (Instituto Andino Patagónico de Tecnologías Biológicas y Geoambientales) CONICET, Universidad Nacional del Comahue, Quintral, 1250, Bariloche, Argentina
| | - Noemí Zaritzky
- CIDCA (Centro de Investigación y Desarrollo en Criotecnología de Alimentos) CONICET-Facultad de Ciencias Exactas, UNLP, CIC-PBA, Calle 47 y 116, La Plata, 1900, Buenos Aires, Argentina.
- Depto. de Ingeniería Química- Facultad de Ingeniería, Univ. Nacional de La Plata, Calle 1, y 47, La Plata, Argentina.
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Zhang H, He Q, Zhao W, Guo F, Han L, Wang W. Superior dyes removal by a recyclable magnetic silicate@Fe3O4 adsorbent synthesized from abundant natural mixed clay. Chem Eng Res Des 2021. [DOI: 10.1016/j.cherd.2021.09.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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11
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Maria Rahman M, Al Foisal J, Ihara H, Takafuji M. Efficient removal of methylene blue dye from an aqueous solution using silica nanoparticle crosslinked acrylamide hybrid hydrogels. NEW J CHEM 2021. [DOI: 10.1039/d1nj04383h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Silica nanoparticle cross-linked acrylamide polymer hydrogels showed promising adsorption behavior for organic dye removal in a neutral to basic pH range with a rapid adsorption rate, high adsorption capacity and excellent regeneration efficacy.
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Affiliation(s)
- M. Maria Rahman
- Department of Applied Chemistry and Biochemistry, Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, Japan
- Department of Chemistry, Faculty of Science, Jagannath University, Dhaka-1100, Bangladesh
| | - Jannat Al Foisal
- Department of Applied Chemistry and Biochemistry, Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, Japan
| | - Hirotaka Ihara
- Department of Applied Chemistry and Biochemistry, Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, Japan
- Okinawa College, National Institute of Technology, 905 Henoko, Ns, Okinawa, 905-2192, Japan
| | - Makoto Takafuji
- Department of Applied Chemistry and Biochemistry, Faculty of Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, Japan
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Ding Q, Zhao S, Xiao H, Li Y, Liu S, Li L, Li C, Wang Y, Hong M, Luo J. An Uncommon Hypervalent Fluorooxosilicophosphate. Chem Asian J 2019; 14:4174-4178. [PMID: 31622536 DOI: 10.1002/asia.201901410] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Qingran Ding
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
- University of Chinese Academy of Science Beijing 100049 China
| | - Sangen Zhao
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Han Xiao
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Yanqiang Li
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Shuai Liu
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Lina Li
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Chunsen Li
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Yusong Wang
- University of Science and Technology of China Anhui 230026 China
| | - Maochun Hong
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
| | - Junhua Luo
- State Key Laboratory of Structural ChemistryFujian institute of Research on the Structure of MatterChinese Academy of Science 155 Yangqiao Road West Fuzhou Fujian 350002 China
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Tan KH, Iqbal A, Adam F, Abu Bakar NHH, Ahmad MN, Yusop RM, Pauzi H. Influence of Mg/CTAB ratio on the structural, physicochemical properties and catalytic activity of amorphous mesoporous magnesium silicate catalysts. RSC Adv 2019; 9:38760-38771. [PMID: 35540239 PMCID: PMC9075996 DOI: 10.1039/c9ra08024d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 11/18/2019] [Indexed: 11/24/2022] Open
Abstract
This study investigated the physicochemical and catalytic properties of mesoporous magnesium silicate catalysts prepared at various Mg/CTAB ratios (0.25, 0.50, 0.75 and 1.00). The XPS analysis detected a mixture of enstatite and magnesium carbonate species when the Mg/CTAB ratio was 0.25, and 0.50. A mixture of forsterite and magnesium carbonate species were detected when the Mg/CTAB ratio was 0.75 whereas for the Mg/CTAB ratio of 1.00, enstatite and magnesium metasilicate species were detected. A catalyst with the Mg/CTAB ratio of 1.00 demonstrated the highest catalytic activity in the oxidation of styrene. The styrene conversion rate was 59.0%, with 69.2% styrene oxide (StO) selectivity. The H2O2 molecules were activated regio-specifically by the magnesium species to prevent rapid self-decomposition while promoting selective interaction with styrene. All the parameters that influence the styrene conversion and product selectivity were evaluated using analysis of variance (ANOVA) with Tukey's test. The ANOVA analysis showed that the reaction time (h), Mg/CTAB ratio, styrene/H2O2 ratio, catalyst loading (mg) and temperature (°C) affect styrene conversion and product selectivity (StO) significantly (p < 0.05). The oxidation of styrene was well fitted to the pseudo-first-order model. The activation energy, Ea of the catalysed styrene epoxidation reaction was calculated to be 27.7 kJmol−1. The catalyst can be reused several times without any significant loss in its activity and selectivity. The results from this study will be useful in designing and developing low cost, high activity catalysts from alkaline earth metals. Increasing the magnesium content in direct synthesis will lead to the formation of different magnesium active sites that increase the styrene oxide selectivity under the same reaction conditions.![]()
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Affiliation(s)
- Kok-Hou Tan
- School of Chemical Sciences, Universiti Sains Malaysia 11800 Penang Malaysia +604-6533565
| | - Anwar Iqbal
- School of Chemical Sciences, Universiti Sains Malaysia 11800 Penang Malaysia +604-6533565.,School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia 43600 UKM, Bangi Malaysia
| | - Farook Adam
- School of Chemical Sciences, Universiti Sains Malaysia 11800 Penang Malaysia +604-6533565
| | - N H H Abu Bakar
- School of Chemical Sciences, Universiti Sains Malaysia 11800 Penang Malaysia +604-6533565
| | - M N Ahmad
- Experimental and Theoretical Research Lab, Department of Chemistry, Kulliyyah of Science, International Islamic University Malaysia Bandar Indera Mahkota 25200 Kuantan Pahang Malaysia
| | - Rahimi M Yusop
- School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia 43600 UKM, Bangi Malaysia
| | - Hariy Pauzi
- Science and Engineering Research Centre (SERC), Universiti Sains Malaysia Engineering Campus, 14300 Nibong Tebal Seberang Perai Selatan Penang Malaysia
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14
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Yuan N, Cai H, Liu T, Huang Q, Zhang X. Adsorptive removal of methylene blue from aqueous solution using coal fly ash-derived mesoporous silica material. ADSORPT SCI TECHNOL 2019. [DOI: 10.1177/0263617419827438] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In the present work, coal fly ash-derived mesoporous silica material (CFA-MS) has been successfully fabricated without employing any extra silica source. The obtained CFA-MS was characterized by Fourier transform infrared spectroscopy, nitrogen adsorption–desorption measurement, powder X-ray diffraction and transmission electron microscopy. Nitrogen adsorption–desorption measurement disclosed that CFA-MS possesses Brunauer–Emmett–Teller-specific surface area of 497 m2·g−1 and pore volume of 0.49 cm3·g−1, respectively. Furthermore, CFA-MS was evaluated for the adsorptive removal of methylene blue from aqueous solution. Several influence parameters on the removal of methylene blue including contact time, pH, initial concentration and temperature were studied in detail. Moreover, Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherm models were employed for interpretation of the adsorption process, while the pseudo-first-order and pseudo-second-order kinetics equations were applied to investigate the adsorption kinetics. Results in the current work demonstrate that CFA-MS can be used as an efficient adsorbent for methylene blue removal.
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Affiliation(s)
- Ning Yuan
- School of Chemical & Environmental Engineering, China University of Mining & Technology, Beijing, China
| | - Hui Cai
- School of Chemical & Environmental Engineering, China University of Mining & Technology, Beijing, China
| | - Tian Liu
- School of Chemical & Environmental Engineering, China University of Mining & Technology, Beijing, China
| | - Qi Huang
- School of Chemical & Environmental Engineering, China University of Mining & Technology, Beijing, China
| | - Xinling Zhang
- School of Chemical & Environmental Engineering, China University of Mining & Technology, Beijing, China
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15
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Han G, Lei BH, Yang Z, Wang Y, Pan S. A Fluorooxosilicophosphate with an Unprecedented SiO2F4Species. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805759] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Guopeng Han
- CAS Key Laboratory of Functional Materials and Devices for Special Environments; Xinjiang Technical Institute of Physics & Chemistry of CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices; 40-1 South Beijing Road Urumqi 830011 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Bing-Hua Lei
- CAS Key Laboratory of Functional Materials and Devices for Special Environments; Xinjiang Technical Institute of Physics & Chemistry of CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices; 40-1 South Beijing Road Urumqi 830011 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Zhihua Yang
- CAS Key Laboratory of Functional Materials and Devices for Special Environments; Xinjiang Technical Institute of Physics & Chemistry of CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices; 40-1 South Beijing Road Urumqi 830011 China
| | - Ying Wang
- CAS Key Laboratory of Functional Materials and Devices for Special Environments; Xinjiang Technical Institute of Physics & Chemistry of CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices; 40-1 South Beijing Road Urumqi 830011 China
| | - Shilie Pan
- CAS Key Laboratory of Functional Materials and Devices for Special Environments; Xinjiang Technical Institute of Physics & Chemistry of CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices; 40-1 South Beijing Road Urumqi 830011 China
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16
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Han G, Lei BH, Yang Z, Wang Y, Pan S. A Fluorooxosilicophosphate with an Unprecedented SiO2F4Species. Angew Chem Int Ed Engl 2018; 57:9828-9832. [DOI: 10.1002/anie.201805759] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Guopeng Han
- CAS Key Laboratory of Functional Materials and Devices for Special Environments; Xinjiang Technical Institute of Physics & Chemistry of CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices; 40-1 South Beijing Road Urumqi 830011 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Bing-Hua Lei
- CAS Key Laboratory of Functional Materials and Devices for Special Environments; Xinjiang Technical Institute of Physics & Chemistry of CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices; 40-1 South Beijing Road Urumqi 830011 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Zhihua Yang
- CAS Key Laboratory of Functional Materials and Devices for Special Environments; Xinjiang Technical Institute of Physics & Chemistry of CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices; 40-1 South Beijing Road Urumqi 830011 China
| | - Ying Wang
- CAS Key Laboratory of Functional Materials and Devices for Special Environments; Xinjiang Technical Institute of Physics & Chemistry of CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices; 40-1 South Beijing Road Urumqi 830011 China
| | - Shilie Pan
- CAS Key Laboratory of Functional Materials and Devices for Special Environments; Xinjiang Technical Institute of Physics & Chemistry of CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices; 40-1 South Beijing Road Urumqi 830011 China
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17
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Zanoletti A, Vassura I, Venturini E, Monai M, Montini T, Federici S, Zacco A, Treccani L, Bontempi E. A New Porous Hybrid Material Derived From Silica Fume and Alginate for Sustainable Pollutants Reduction. Front Chem 2018; 6:60. [PMID: 29616212 PMCID: PMC5867481 DOI: 10.3389/fchem.2018.00060] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 02/23/2018] [Indexed: 11/19/2022] Open
Abstract
In this work a new mesoporous adsorbent material obtained from a natural, high abundant raw material and a high volume industrial by-product is presented. The material is consolidated by the gelling properties of alginate and by decomposition of sodium-bicarbonate controlled porosity at low temperatures (70–80°C) at different scale lengths. The structural, thermal, and morphological characterization shows that the material is a mesoporous organic-inorganic hybrid. The material is tested as adsorbent, showing high performances. Methylene blue, used as model pollutant, can be adsorbed and removed from aqueous solutions even at a high concentration with efficiency up to 94%. By coating the material with a 100 nm thin film of titania, good photodegradation performance (more than 20%) can be imparted. Based on embodied energy and carbon footprint of its primary production, the sustainability of the new obtained material is evaluated and quantified in respect to activated carbon as well. It is shown that the new proposed material has an embodied energy lower than one order of magnitude in respect to the one of activated carbon, which represents the gold standards. The versatility of the new material is also demonstrated in terms of its design and manufacturing possibilities In addition, this material can be printed in 3D. Finally, preliminary results about its ability to capture diesel exhaust particulate matter are reported. The sample exposed to diesel contains a large amount of carbon in its surface. At the best of our knowledge, this is the first time that hybrid porous materials are proposed as a new class of sustainable materials, produced to reduce pollutants in the wastewaters and in the atmosphere.
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Affiliation(s)
- Alessandra Zanoletti
- Chemistry for Technologies Laboratory, INSTM and Department of Mechanical and Industrial Engineering, University of Brescia, Brescia, Italy
| | - Ivano Vassura
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Bologna, Italy.,Interdepartmental Center for Industrial Research "Energy and Environment", University of Bologna, Ravenna, Italy
| | - Elisa Venturini
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Bologna, Italy
| | - Matteo Monai
- Department of Chemical and Pharmaceutical Sciences, INSTM Trieste Research Unit and ICCOM-CNR Trieste Research Unit, Trieste, Italy
| | - Tiziano Montini
- Department of Chemical and Pharmaceutical Sciences, INSTM Trieste Research Unit and ICCOM-CNR Trieste Research Unit, Trieste, Italy
| | - Stefania Federici
- Chemistry for Technologies Laboratory, INSTM and Department of Mechanical and Industrial Engineering, University of Brescia, Brescia, Italy
| | - Annalisa Zacco
- Chemistry for Technologies Laboratory, INSTM and Department of Mechanical and Industrial Engineering, University of Brescia, Brescia, Italy
| | - Laura Treccani
- Petroceramics Spa, Kilometro Rosso Science & Technology Park, Stezzano, Italy
| | - Elza Bontempi
- Chemistry for Technologies Laboratory, INSTM and Department of Mechanical and Industrial Engineering, University of Brescia, Brescia, Italy
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18
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Tabish TA, Memon FA, Gomez DE, Horsell DW, Zhang S. A facile synthesis of porous graphene for efficient water and wastewater treatment. Sci Rep 2018; 8:1817. [PMID: 29379045 PMCID: PMC5788977 DOI: 10.1038/s41598-018-19978-8] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 01/10/2018] [Indexed: 11/10/2022] Open
Abstract
The use of two-dimensional graphene-based materials in water treatment has recently gained significant attention due to their unique electronic and thermal mobility, high surface area, high mechanical strength, excellent corrosion resistance and tunable surface chemistry. However, the relatively expensive, poor hydrophobicity, low adsorption capacity and recyclability, and complex post-treatment of the most pristine graphene frameworks limit their practical application. Here, we report a facile scalable method to produce highly porous graphene from reduced graphene oxide via thermal treatment without addition of any catalyst or use of any template. Comparing to conventional graphene counterparts, as-prepared porous graphene nanosheets showed evident improvement in hydrophobicity, adsorption capacity, and recyclability, making them ideal candidate materials for water treatment. Superhydrophobic and superoleophilic porous graphene prepared in this work has been demonstrated as effective absorbents for a broad range of ions, oils and organic solvents, exhibiting high selectivity, good recyclability, and excellent absorption capacities > 90%. The synthesis method of porous graphene reported in this paper is easy to implement, low cost and scalable. These attributes could contribute towards efficient and cost-effective water purification and pollution reduction.
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Affiliation(s)
- Tanveer A Tabish
- College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, EX4 4QF, United Kingdom
| | - Fayyaz A Memon
- College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, EX4 4QF, United Kingdom.
| | - Diego E Gomez
- College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, EX4 4QF, United Kingdom
| | - David W Horsell
- College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, EX4 4QF, United Kingdom
| | - Shaowei Zhang
- College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, EX4 4QF, United Kingdom.
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19
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Saha J, Radhakrishnan TP. Soft Chemical Fabrication of Iron-Based Thin Film Electrocatalyst for Water Oxidation under Neutral pH and Structure-Activity Tuning by Cerium Incorporation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:8372-8382. [PMID: 28817279 DOI: 10.1021/acs.langmuir.7b01647] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Design of electrocatalysts for the fundamentally important oxygen evolution reaction can be greatly aided by systematic structure-activity tuning via composition variation. We have explored the iron-cerium system as they are the most abundant transition and rare earth metals, and also due to the mutualistic impact of their size and electronic attributes that can induce critical changes in the structure and electrochemical activity. Submicrometer thick films of a series of Fe(III)-Ce(III) phosphate(oxyhydroxide) (FeCePH) are fabricated using a soft chemical strategy involving surfactant-aided assembly, spin-coating, and mild thermal annealing. FT-IR, Raman, and X-ray photoelectron spectroscopies, chemical analysis, X-ray diffraction, and electron microscopy reveal the systematic structural, electronic, and morphological variation, on tuning the iron-cerium composition. Nitrogen adsorption-desorption studies show the surface area increasing and pore size distribution shrinking with the cerium content, indicating its structure-directing role. The electrocatalysis of water oxidation by FeCePH films on FTO-coated glass is studied in neutral pH conditions. The overpotential and Tafel slope decrease with increasing cerium content, reaching minima at the optimal Fe:Ce ratio of 1:0.5; the turnover frequency shows a corresponding increase and maximum. The trends are explained on the basis of the structural changes in the films, and the coupling of Ce3+/Ce4+ with Fe3+/Fe4+ that leads to active state regeneration. This study presents a rational strategy to tune the efficiency of easily fabricated transition metal-based electrocatalyst thin films through rare earth metal incorporation; it should prove useful in the design of cost-effective catalysts for water oxidation.
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Affiliation(s)
- Jony Saha
- School of Chemistry, University of Hyderabad , Hyderabad 500 046, India
| | - T P Radhakrishnan
- School of Chemistry, University of Hyderabad , Hyderabad 500 046, India
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