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Paixão RM, Silva LHBRD, Vieira MF, Amorim MTPD, Bergamasco R, Vieira AMS. Enhanced filtration membranes with graphene oxide and tannic acid for textile industry wastewater dye removal. ENVIRONMENTAL TECHNOLOGY 2024:1-12. [PMID: 38955495 DOI: 10.1080/09593330.2024.2369733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 06/12/2024] [Indexed: 07/04/2024]
Abstract
A novel modification technique employing a layer-by-layer (LbL) self-assembly method, integrated with a pressure-assisted filtration system, was developed for enhancing a commercial polyethersulfone (PES) microfiltration (MF) membrane. This modification involved the incorporation of tannic acid (TA) in conjunction with graphene oxide (GO) nanosheets. The effectiveness of the LbL method was confirmed through comprehensive characterization analyses, including ATR-FTIR, SEM, water contact angle (WCA), and mean pore size measurements, comparing the modified membrane with the original commercial one. Sixteen variations of PES MF membranes were superficially modified using a three-factorial design, with the deposited amount of TA and GO as key factors. The influence of these factors on the morphology and performance of the membranes was systematically investigated, focusing on parameters such as pure water permeability (PWP), blue corazol (BC) dye removal efficiency, and flux recovery rate (FRR). The membranes produced with the maximum amount of GO (0.1 mg, 0.55 wt%) and TA as the inner and outer layers demonstrated remarkable FRR and significant BC removal, exceeding 80%. Notably, there was no significant difference observed when using either 0.2 (1.11 wt%) or 0.4 mg (2.22 wt%) in the first layer, as indicated by the Tukey mean test. Furthermore, the modified membrane designated as MF/TA0.4GO0.1TA0.4 was evaluated in the filtration of a simulated dye bath wastewater, exhibiting a BC removal efficiency of 49.20% and a salt removal efficiency of 27.74%. In conclusion, the novel PES MF membrane modification proposed in this study effectively enhances the key properties of pressure-driven separation processes.
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Affiliation(s)
| | | | | | | | - Rosângela Bergamasco
- Department of Chemical Engineering, State University of Maringá, Maringá, Brazil
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2
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Zhang Y, Wang X, Ayman E, Zhao Q, Wang Y, Gao Z, Gong G. Mussel-inspired graphene oxide-based mixed matrix membranes for improving permeability and antifouling property. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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3
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Ni P, Zeng J, Chen H, Yang F, Yi X. Effect of different factors on treatment of oily wastewater by TiO 2/Al 2O 3-PVDF ultrafiltration membrane. ENVIRONMENTAL TECHNOLOGY 2022; 43:2981-2989. [PMID: 33797337 DOI: 10.1080/09593330.2021.1912832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 03/25/2021] [Indexed: 06/12/2023]
Abstract
An ultrafiltration membrane developed by our research group was applied to treat simulated emulsified oil wastewater. ATR-FTIR, SEM, TEM, and Zeta potential analyzes demonstrated that the modified ultrafiltration membrane (MM) has excellent stability and anti-fouling capacity than origin membrane (OM), which possesses a pure water flux of 260 L·m-2·h-1 and oil/water (o/w) rejection of 98.5 ± 0.33%. Inorganic salt CaCl2 has more considerable influence than MgSO4 and NaCl under the same mass concentration in the two membranes UF process. Along with concentration increasing, flux sharply reduces; meanwhile, the rejection has an opposite trend. Moreover, permeation flux has a maximum value, and the rejection also gets its optimal state under neutral conditions during the pH value of 2-12. The membrane also exhibits excellent anti-fouling performance and anti- o/w adsorption properties with an adsorption rate below 0.8% compared with OM, which has an adsorption rate of nearly 2.1%, respectively. A kind of new UF membrane developed by our research group was applied to treat simulated o/w. ATR-FTIR, SEM, TEM, and Zeta potential analyzes demonstrated that PVDF-Al2O3/TiO2 material has excellent stability and anti-fouling capacity. CaCl2 has the greatest influence than MgSO4 and NaCl under the same mass concentration. Moreover, permeation flux has maximum value and the rejection also gets its optimal state under neutral conditions during pH 2-12. The membrane also exhibits excellent anti-fouling performance and anti-O/W adsorption properties with adsorption rate below 0.8% compared with OM which has an adsorption rate nearly 2.1%, respectively.
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Affiliation(s)
- Pengfei Ni
- School of Environmental Science and Engineering, Hainan University, Haikou, People's Republic of China
| | - Jie Zeng
- School of Environmental Science and Engineering, Hainan University, Haikou, People's Republic of China
| | - Honglin Chen
- School of Environmental Science and Engineering, Hainan University, Haikou, People's Republic of China
| | - Fei Yang
- School of Environmental Science and Engineering, Hainan University, Haikou, People's Republic of China
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Haikou, People's Republic of China
| | - Xuesong Yi
- School of Environmental Science and Engineering, Hainan University, Haikou, People's Republic of China
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Haikou, People's Republic of China
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4
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Gao C, Chen H, Liu S, Chen J, Xing Y, Ji S, Chen J, Zou P, Cai J. Bimetallic polyphenol networks structure modified polyethersulfone membrane with hydrophilic and anti-fouling properties based on reverse thermally induced phase separation method. CHEMOSPHERE 2022; 288:132537. [PMID: 34637865 DOI: 10.1016/j.chemosphere.2021.132537] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 10/07/2021] [Accepted: 10/08/2021] [Indexed: 06/13/2023]
Abstract
In order to improve the hydrophobicity of traditional polyethersulfone (PES) membranes, this study combined the reverse thermally induced phase separation (RTIPS) method with the constructed bimetallic polyphenol networks (BMPNs) to prepare hydrophilic anti-fouling membranes. As for BMPNs, tannic acid (TA) was served as an intermediate to construct both the inner and surface hydrophilic layers of the PES membranes. On the one hand, etching Zeolitic imidazolate framework-8 (EZIF-8) with synergistic etching and surface functionalization via TA not only retained the high pore structure of MOFs, but also had good hydrophilicity. On the other hand, the MPN hydrophilic layer was formed on the membrane surface by the combination of TA from the surface of EZIF-8 and iron ions in the coagulation bath. Therefore, BMPNs structure penetrated the interior and surface of PES membrane, which greatly improved the hydrophilic properties. In addition, the membrane with porous surfaces and spongy cross sections by RTIPS method improved the permeability and mechanical properties of the membrane by several times compared with the membrane via NIPS method. The obtained membranes in this experiment showed excellent permeability, just like pure water flux reached 1662.16 L/m2 h, while BSA rejection rate remained at 92.78%. Compared with pure membrane, it showed a better flux recovery rate (FRR = 83.33%) after cleaning, and the reduction of irreversible (Rir = 16.67%) fouling indexes indicated that the adsorption of protein was inhibited. These results suggested that the hydrophilic anti-fouling PES membranes prepared by this method possessed great application potential in membrane separation technology.
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Affiliation(s)
- Chunmei Gao
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; Marine Environment Monitoring and Assessment Center, Shanghai Ocean University, Shanghai, 201306, China
| | - Hongyu Chen
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Shenghui Liu
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; Marine Environment Monitoring and Assessment Center, Shanghai Ocean University, Shanghai, 201306, China.
| | - Jinchao Chen
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Yunqing Xing
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; Marine Environment Monitoring and Assessment Center, Shanghai Ocean University, Shanghai, 201306, China
| | - Shifeng Ji
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; Marine Environment Monitoring and Assessment Center, Shanghai Ocean University, Shanghai, 201306, China
| | - Jiajian Chen
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Peng Zou
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Jiaonan Cai
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
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5
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Dai F, Zhang S, Wang Q, Chen H, Chen C, Qian G, Yu Y. Preparation and Characterization of Reduced Graphene Oxide /TiO 2 Blended Polyphenylene sulfone Antifouling Composite Membrane With Improved Photocatalytic Degradation Performance. Front Chem 2021; 9:753741. [PMID: 34738005 PMCID: PMC8560889 DOI: 10.3389/fchem.2021.753741] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 09/06/2021] [Indexed: 11/29/2022] Open
Abstract
Nanosized titanium oxide (TiO2)-based photocatalysts have exhibited great potential for the degradation of organic contaminants, while their weak absorption of visible light limits the photocatalytic efficiency. Herein, a novel reduced graphene oxide/TiO2-polyphenylenesulfone (rGO/TiO2-PPSU) hybrid ultrafiltration membrane has been successfully prepared via a non-solvent induced phase-separation method, in which the synergistic coupling between the rGO and TiO2 could endowed the fabricated membranes with visible-light-driven efficient photocatalytically degradation of organic pollutants and outstanding photocatalytic and antifouling properties. Compared with the PPSU membranes prepared with Graphene oxide and TiO2, respectively, the rGO/TiO2-PPSU membrane demonstrated significant photodegradation towards phenazopyridine hydrochloride (PhP) solution under ultraviolet light (improved about 71 and 43%) and visible light (improved about 153 and 103%). The permeability and flux recovery rates of the membrane indicated that the high flux of the rGO/TiO2-PPSU membrane can be greatly restored after fouling, due to the improved self-cleaning properties under visible light static irradiation. With the properties of high performance of photocatalytic degradation and good self-cleaning ability, the rGO/TiO2-PPSU membrane would have great potential in water treatment.
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Affiliation(s)
| | | | | | | | | | - Guangtao Qian
- Center for Advanced Low-Dimension Materials, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai, China
| | - Youhai Yu
- Center for Advanced Low-Dimension Materials, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai, China
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Zahid M, Akram S, Rashid A, Rehan ZA, Javed T, Shabbir R, Hessien MM, El-Sayed ME. Investigating the Antibacterial Activity of Polymeric Membranes Fabricated with Aminated Graphene Oxide. MEMBRANES 2021; 11:510. [PMID: 34357160 PMCID: PMC8306018 DOI: 10.3390/membranes11070510] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 06/27/2021] [Accepted: 07/02/2021] [Indexed: 11/18/2022]
Abstract
A novel, functionalized graphene oxide-based cellulose acetate membrane was fabricated using the phase inversion method to improve the membrane characteristics and performance. We studied the effect of aminated graphene oxide (NH2-GO) composite on the CA membrane characteristics and performance in terms of membrane chemistry, hydrophilicity, thermal and mechanical stability, permeation flux, and antibacterial activity. The results of contact angle and water flux indicate the improved hydrophilic behavior of composite membranes in comparison to that of the pure CA membrane. The AGO-3 membrane showed the highest water flux of about 153 Lm-2h-1. The addition of hydrophilic AGO additive in CA membranes enhanced the antibacterial activity of AGO-CA membranes, and the thermal stability of the resulting membrane also improved since it increases the Tg value in comparison to that of a pristine CA membrane. The aminated graphene oxide (NH2-GO) was, therefore, found to be a promising additive for the fabrication of composite membranes with potent applications in wastewater treatment.
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Affiliation(s)
- Muhammad Zahid
- Department of Chemistry, University of Agriculture, Faisalabad 38000, Pakistan;
| | - Saba Akram
- Department of Materials, National Textile University, Faisalabad 37610, Pakistan; (S.A.); (A.R.)
| | - Anum Rashid
- Department of Materials, National Textile University, Faisalabad 37610, Pakistan; (S.A.); (A.R.)
| | - Zulfiqar Ahmad Rehan
- Department of Materials, National Textile University, Faisalabad 37610, Pakistan; (S.A.); (A.R.)
| | - Talha Javed
- Department of Agronomy, University of Agriculture, Faisalabad 38000, Pakistan;
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
| | - Rubab Shabbir
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
| | - Mahmoud M. Hessien
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21974, Saudi Arabia;
| | - Mahmoud E. El-Sayed
- Department of Food Science and Technology, Faculty of Agriculture, Tanta University, Tanta 21527, Egypt;
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7
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Rabajczyk A, Zielecka M, Cygańczuk K, Pastuszka Ł, Jurecki L. The Use of Polymer Membranes to Counteract the Risk of Environmental of Soil and Water Contamination. MEMBRANES 2021; 11:membranes11060426. [PMID: 34199707 PMCID: PMC8226685 DOI: 10.3390/membranes11060426] [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: 05/03/2021] [Revised: 05/31/2021] [Accepted: 06/01/2021] [Indexed: 11/16/2022]
Abstract
Chemical, biological, radiological, or nuclear (CBRN) contamination of the environment is a significant threat to human health and life as well as environmental safety. It is then necessary to take actions aimed at minimizing and eliminating the threat. Depending on the type of contamination, various methods are used, including sorption, biodegradation, separation, or ion exchange processes in which membranes play an important role. The type of membrane is selected in respect of both the environment and the type of neutralized pollutants. Therefore, the production and modification of membranes are being adapted to the type of contamination and the purpose of the work. This article presents examples of membranes and their possible applications depending on the part of the environment subject to reclamation and the type of contamination.
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Gao CM, Chen JC, Liu SH, Xing YQ, Ji SF, Chen HY, Chen JJ, Zou P, Cai JN, Fang H. Development of hydrophilic PES membranes using F127 and HKUST-1 based on the RTIPS method: Mitigate the permeability-selectivity trade-off. ENVIRONMENTAL RESEARCH 2021; 196:110964. [PMID: 33675799 DOI: 10.1016/j.envres.2021.110964] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/24/2021] [Accepted: 03/01/2021] [Indexed: 06/12/2023]
Abstract
In this study, to mitigate the permeability-selectivity trade-off effect, Pluronic F127 (F127) and HKUST-1 were employed to construct high-performance membranes based on the reverse thermally induced phase separation (RTIPS) method. F127, as a hydrophilic modifier, was applied to increase permeability and resist polyethersulfone (PES) membrane fouling, while the collapse of HKSUT-1 caused by its instability in pure water improved the permeability and selectivity of the membrane. Characterizations demonstrated the successful synthesis of HKUST-1, together with the successful introduction of HKSUT-1 and F127 in PES membranes. It was observed that the membrane prepared by the RTIPS process possessed a uniformly porous surface and sponge-like cross-section with excellent mechanical properties, higher permeability, and selectivity compared to the dense skin and finger-like cross-section of the membrane prepared by the nonsolvent induced phase separation (NIPS) method. Moreover, the permeation and bovine serum albumin (BSA) rejection rate of the optimal membrane reached 2378 L/m2 h and 89.3%, respectively, which were far higher than those of the pure membrane. Hydrophilic F127 and many microvoids formed by the collapse of HKUST-1, played an important role in excellent antifouling properties, high permeability, and selectivity by pure water flux (PWF), flux recovery rate (FRR), BSA flux, and COD removal rate tests. Overall, the membrane with F127 and HKSUT-1 prepared via the RTIPS method not only obtained excellent antifouling properties but also mitigated the permeability-selectivity trade-off.
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Affiliation(s)
- Chun-Mei Gao
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; Center for Polar Research, Shanghai Ocean University, Shanghai, 201306, China; Marine Environment Monitoring and Assessment Center, Shanghai Ocean University, Shanghai, 201306, China
| | - Jin-Chao Chen
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Sheng-Hui Liu
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; Marine Environment Monitoring and Assessment Center, Shanghai Ocean University, Shanghai, 201306, China.
| | - Yun-Qing Xing
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; Marine Environment Monitoring and Assessment Center, Shanghai Ocean University, Shanghai, 201306, China
| | - Shi-Feng Ji
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China; Marine Environment Monitoring and Assessment Center, Shanghai Ocean University, Shanghai, 201306, China
| | - Hong-Yu Chen
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Jia-Jian Chen
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Peng Zou
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Jiao-Nan Cai
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Han Fang
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
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9
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Shen Z, Chen W, Xu H, Yang W, Kong Q, Wang A, Ding M, Shang J. Fabrication of a Novel Antifouling Polysulfone Membrane with in Situ Embedment of Mxene Nanosheets. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16234659. [PMID: 31766756 PMCID: PMC6926845 DOI: 10.3390/ijerph16234659] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 11/14/2019] [Accepted: 11/15/2019] [Indexed: 11/17/2022]
Abstract
Membrane fouling is still a critical issue for the application of ultrafiltration, which has been widely used in water treatment due to its efficiency and simplicity. In order to improve the antifouling property, a new 2D material MXene was used to fabricate composite ultrafiltration membrane with the approach of in situ embedment during the phase inversion process in this study. Scanning electron microscopy (SEM), atomic force microscopy (AFM), thermogravimetric analysis (TGA), energy dispersive spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR), water contact angle, bovine serum albumin rejection and porosity measurements were utilized to characterize the prepared membranes. Due to the hydrophilicity of the MXene, the composite membranes obtained higher hydrophilicity, confirmed by the decreased water contact angle. All the modified membranes had a high bovine serum albumin rejection above 90% while that of the pristine polysulfone membrane was 77.48%. The flux recovery ratio and the reversible fouling ratio of the membranes were also improved along with the increasing content of the MXene. Furthermore, the highest flux recovery ratio could also reach 76.1%. These indicated the good antifouling properties of MXene composite membranes. The enhanced water permeability and protein rejection and excellent antifouling properties make MXene a promising material for antifouling membrane modification.
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Affiliation(s)
- Zhen Shen
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1 Xikang Road, Nanjing 210098, China; (Z.S.); (W.C.); (W.Y.); (Q.K.); (A.W.); (M.D.)
| | - Wei Chen
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1 Xikang Road, Nanjing 210098, China; (Z.S.); (W.C.); (W.Y.); (Q.K.); (A.W.); (M.D.)
| | - Hang Xu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1 Xikang Road, Nanjing 210098, China; (Z.S.); (W.C.); (W.Y.); (Q.K.); (A.W.); (M.D.)
- Correspondence:
| | - Wen Yang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1 Xikang Road, Nanjing 210098, China; (Z.S.); (W.C.); (W.Y.); (Q.K.); (A.W.); (M.D.)
| | - Qing Kong
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1 Xikang Road, Nanjing 210098, China; (Z.S.); (W.C.); (W.Y.); (Q.K.); (A.W.); (M.D.)
| | - Ao Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1 Xikang Road, Nanjing 210098, China; (Z.S.); (W.C.); (W.Y.); (Q.K.); (A.W.); (M.D.)
| | - Mingmei Ding
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1 Xikang Road, Nanjing 210098, China; (Z.S.); (W.C.); (W.Y.); (Q.K.); (A.W.); (M.D.)
| | - Juan Shang
- Wanjiang University of Technology, Maanshan 243031, China;
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Yang G, Xie Z, Cran M, Ng D, Gray S. Enhanced desalination performance of poly (vinyl alcohol)/carbon nanotube composite pervaporation membranes via interfacial engineering. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.02.034] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Liu Q, Li L, Pan Z, Dong Q, Xu N, Wang T. Inorganic nanoparticles incorporated in polyacrylonitrile‐based mixed matrix membranes for hydrophilic, ultrafast, and fouling‐resistant ultrafiltration. J Appl Polym Sci 2019. [DOI: 10.1002/app.47902] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Qiao Liu
- Department of Chemical and Materials EngineeringHefei University 99 Jinxiu Avenue, Hefei 230601 China
- State Key Laboratory of Fine Chemicals, Carbon Research LaboratorySchool of Chemical Engineering, Dalian University of Technology 2 Linggong Road, Dalian 116024 China
| | - Lin Li
- State Key Laboratory of Fine Chemicals, Carbon Research LaboratorySchool of Chemical Engineering, Dalian University of Technology 2 Linggong Road, Dalian 116024 China
| | - Zonglin Pan
- State Key Laboratory of Fine Chemicals, Carbon Research LaboratorySchool of Chemical Engineering, Dalian University of Technology 2 Linggong Road, Dalian 116024 China
| | - Qiang Dong
- Department of Chemical and Materials EngineeringHefei University 99 Jinxiu Avenue, Hefei 230601 China
| | - Nong Xu
- Department of Chemical and Materials EngineeringHefei University 99 Jinxiu Avenue, Hefei 230601 China
| | - Tonghua Wang
- State Key Laboratory of Fine Chemicals, Carbon Research LaboratorySchool of Chemical Engineering, Dalian University of Technology 2 Linggong Road, Dalian 116024 China
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A Membrane Modified with Nitrogen-Doped TiO2/Graphene Oxide for Improved Photocatalytic Performance. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9050855] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
An improved photocatalytic microfiltration membrane was successfully prepared by the impregnation method with nitrogen-doped TiO2/graphene oxide (GO) (NTG). By utilizing the unique role of N and GO, the photocatalytic activity of the membrane in UV and sunlight was improved. Compared with the Polyvinylidene Fluoride (PVDF) microfiltration membrane which was modified by TiO2, N-TiO2 (NT) and TiO2-GO (TG), the NTG/PVDF membrane exhibited high photocatalytic efficiency and significantly improved photodegradation power to the methylene blue (MB) solution under ultraviolet light and sunlight, with the photocatalytic efficiency reaching 86.5% and 80.6%, respectively. Scanning electron microscopy (SEM), X-ray diffractometry (XRD) and Fourier transform infrared spectroscopy (FT-IR) were used to analyze the morphology, crystal structure and chemical bonds of the membrane surface. The hydrophilicity of the modified PVDF microfiltration membrane was significantly improved, the flux of the pure water membrane reached 1672 Lm−2h−1, the flux of the MB solution was also significantly improved due to photodegradation. Therefore, the nitrogen-doped titanium dioxide graphene oxide PVDF microfiltration membrane (NTG/PVDF membrane) has great development prospects in sustainable water treatment.
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Ponnaiah SK, Prakash P, Vellaichamy B. A new analytical device incorporating a nitrogen doped lanthanum metal oxide with reduced graphene oxide sheets for paracetamol sensing. ULTRASONICS SONOCHEMISTRY 2018; 44:196-203. [PMID: 29680603 DOI: 10.1016/j.ultsonch.2018.02.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 01/27/2018] [Accepted: 02/05/2018] [Indexed: 06/08/2023]
Abstract
The novel N-CeO2 nanoparticles decorated on reduced graphene oxide (N-CeO2@rGO) composite has been synthesized by sonochemical method. The characterization of as prepared nanocomposite was intensely performed by UV-Vis, FT-IR, EDX, FE-SEM, HR-TEM, XRD, and TGA analysis. The synthesized nanomaterial was further investigated for its selective and sensitive sensing of paracetamol (PM) based on a N-CeO2@rGO modified glassy carbon electrode. A distinct and improved reversible redox peak of PM is obtained at N-CeO2@rGO nanocomposite compared to the electrodes modified with N-CeO2 and rGO. It displays a very good performance with a wide linear range of 0.05-0.600 μM, a very low detection limit of 0.0098 μM (S/N = 3), a high sensitivity of 268 μA µM-1 cm-2 and short response time (<3 s). Also, the fabricated sensor shows a good sensibleness for the detection of PM in various tablet samples.
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14
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Yang GH, Bao DD, Zhang DQ, Wang C, Qu LL, Li HT. Removal of Antibiotics From Water with an All-Carbon 3D Nanofiltration Membrane. NANOSCALE RESEARCH LETTERS 2018; 13:146. [PMID: 29748741 PMCID: PMC5945562 DOI: 10.1186/s11671-018-2555-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 04/27/2018] [Indexed: 05/13/2023]
Abstract
Recent industrial developments and increased energy demand have resulted in significantly increased levels of environmental pollutants, which have become a serious global problem. Herein, we propose a novel all-carbon nanofiltration (NF) membrane that consists of multi-walled carbon nanotubes (MWCNTs) interposed between graphene oxide (GO) nanosheets to form a three-dimensional (3D) structure. The as-prepared membrane has abundant two-dimensional (2D) nanochannels that can physically sieve antibiotic molecules through electrostatic interaction. As a result, the prepared membrane, with a thickness of 4.26 μm, shows both a high adsorption of 99.23% for tetracycline hydrochloride (TCH) and a high water permeation of 16.12 L m- 2 h- 1 bar- 1. In addition, the cationic dye methylene blue (MB) was also removed to an extent of 83.88%, indicating broad applications of the prepared membrane.
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Affiliation(s)
- Guo-hai Yang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116 China
| | - Dan-dan Bao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116 China
| | - Da-qing Zhang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116 China
| | - Cheng Wang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116 China
| | - Lu-lu Qu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116 China
| | - Hai-tao Li
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116 China
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15
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Immobilization of plasmonic Ag-Au NPs on the TiO2 nanofibers as an efficient visible-light photocatalyst. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2017.10.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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16
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Jiang R, Wen W, Wu JM. Titania nanowires coated PEI/P25 membranes for photocatalytic and ultrafiltration applications. NEW J CHEM 2018. [DOI: 10.1039/c7nj04628f] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bulk compositing and surface functionalization are combined to achieve a polymeric membrane that is covered with TiO2 nanowires, which possesses multi-functions of photodegradation, separation and self-cleaning.
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Affiliation(s)
- Rui Jiang
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering
- Zhejiang University
- Hangzhou
- P. R. China
| | - Wei Wen
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering
- Zhejiang University
- Hangzhou
- P. R. China
- College of Mechanical and Electrical Engineering
| | - Jin-Ming Wu
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering
- Zhejiang University
- Hangzhou
- P. R. China
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