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Lin ZF, Lin HY, Doong RA, Schäfer AI. Heterostructure g-C 3N 4/Bi 2MoO 6 PVDF nanofiber composite membrane for the photodegradation of steroid hormone micropollutants. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:134765. [PMID: 38905981 DOI: 10.1016/j.jhazmat.2024.134765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/13/2024] [Accepted: 05/29/2024] [Indexed: 06/23/2024]
Abstract
Photocatalytic membrane reactors (PMRs) are a promising technology for micropollutant removal. Sunlight utilization and catalyst surface sites limit photodegradation. A poly(vinylidene fluoride) (PVDF) nanofiber composite membrane (NCM) with immobilized visible-light-responsive g-C3N4/Bi2MoO6 (BMCN) were developed. Photodegradation of steroid hormones with the PVDF-BMCN NCM was investigated with varying catalyst properties, operating conditions, and relevant solution chemistry under solar irradiation. Increasing CN ratio (0-65 %) enhanced estradiol (E2) degradation from 20 ± 10 to 75 ± 7 % due to improved sunlight utilization and photon lifetime. PVDF nanofibers reduced self-aggregation of catalysts. Hydraulic residence time and light intensity enhanced the photodegradation. With the increasing pH value, the E2 removal decreased from 84 ± 4 to 67 ± 7 % owing to electrical repulsion and thus reduced adsorption between catalysts and E2. A removal of 96 % can be attained at environmentally relevant feed concentration (100 ng.L-1) with a flux of 60 L.m-2.h-1, irradiance of 100 mW.cm-2, and 1 mg.cm-2 BMCN65 loading. This confirmed that heterojunction photocatalysts can enhance micropollutants degradation in PMRs.
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Affiliation(s)
- Zhi-Fu Lin
- Institute for Advanced Membrane Technology (IAMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany; Institute of Analytical and Environmental Sciences, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu 30044, Taiwan, R.O.C.; International Intercollegiate Ph.D. Program, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu 30044, Taiwan, R.O.C
| | - Han-Ya Lin
- Institute for Advanced Membrane Technology (IAMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany
| | - Ruey-An Doong
- Institute of Analytical and Environmental Sciences, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu 30044, Taiwan, R.O.C
| | - Andrea I Schäfer
- Institute for Advanced Membrane Technology (IAMT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany.
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2
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Lou CW, Xie MM, Yang YD, Wang HY, Wang ZK, Zhang L, Hsieh CT, Liu LY, Lin MC, Li TT. Carbon Nanofiber Membranes Loaded with MXene@g-C 3N 4: Preparation and Photocatalytic Property. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:896. [PMID: 38786852 PMCID: PMC11124281 DOI: 10.3390/nano14100896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 05/15/2024] [Accepted: 05/17/2024] [Indexed: 05/25/2024]
Abstract
In this study, a Ti3C2 MXene@g-C3N4 composite powder (TM-CN) was prepared by the ultrasonic self-assembly method and then loaded onto a carbon nanofiber membrane by the self-assembly properties of MXene for the treatment of organic pollutants in wastewater. The characterization of the TM-CN and the C-TM-CN was conducted via X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared spectrometer (FTIR) to ascertain the successful modification. The organic dye degradation experiments demonstrated that introducing an appropriate amount of Ti3C2 MXene resulted in the complete degradation of RhB within 60 min, three times the photocatalytic efficiency of a pure g-C3N4. The C-TM-CN exhibited the stable and outstanding photocatalytic degradation of the RhB solution over a wide range of pH values, indicating the characteristics of the photodegradation of organic pollutants in a wide range of aqueous environments. Furthermore, the results of the cyclic degradation experiments demonstrated that the C-TM-CN composite film maintained a degradation efficiency of over 85% after five cycles, thereby confirming a notable improvement in its cyclic stability. Consequently, the C-TM-CN composite film exhibits excellent photocatalytic performance and is readily recyclable, making it an auspicious eco-friendly material in water environment remediation.
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Affiliation(s)
- Ching-Wen Lou
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung 413305, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404333, Taiwan
| | - Meng-Meng Xie
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Yan-Dong Yang
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Hong-Yang Wang
- Tianjin Fire Science and Technology Research Institute of MEM, Tianjin 300381, China
| | - Zhi-Ke Wang
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Lu Zhang
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
- Tianjin and Ministry of Education Key Laboratory for Advanced Textile Composite Materials, Tiangong University, Tianjin 300387, China
| | - Chien-Teng Hsieh
- Department of Fashion Design and Merchandising, Shih Chien University, Kaohsiung 84550, Taiwan
| | - Li-Yan Liu
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
- Tianjin and Ministry of Education Key Laboratory for Advanced Textile Composite Materials, Tiangong University, Tianjin 300387, China
| | - Mei-Chen Lin
- Department of Biomedical Engineering, College of Biomedical Engineering, China Medical University, Taichung 404333, Taiwan
| | - Ting-Ting Li
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
- Tianjin and Ministry of Education Key Laboratory for Advanced Textile Composite Materials, Tiangong University, Tianjin 300387, China
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3
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Joseph M, Paulson F, C N, S A, Remello SN, Haridas S, Aravind UK. Layer-by-layer assembled graphitic carbon nitride membranes for water treatment. CHEMOSPHERE 2024; 353:141544. [PMID: 38408573 DOI: 10.1016/j.chemosphere.2024.141544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 01/17/2024] [Accepted: 02/23/2024] [Indexed: 02/28/2024]
Abstract
Meeting societal demand for potable water supply remains one of the prioritized challenges faced in the modern era. The anthropogenic intervention has led to a dire situation threatening ecological balance and human health. There is an inevitable need for the development of new technologies and innovations in existing technologies for water treatment. Photocatalytic Membrane technology, encompassing the merits of membrane filtration and photocatalytic degradation has evolved as a potential and reliable technology for sustainable water treatment. Innovations in photocatalytic materials and membrane fabrication techniques can lead to the goal of commercialization of membrane water treatment technology. Herein, we demonstrate the potential of graphitic carbon nitride (g-C3N4) and its functionalized analog as photocatalytic membranes for sustainable water treatment. g-C3N4 and Tetracarboxyphenylporphyrin sensitized g-C3N4 (g-C3N4/TCPP) was introduced onto commercial nylon membrane surface via a layer-by-layer (LBL) assembly method using chitosan and sodium salt of polystyrene sulphonic acid as polyelectrolytes. The fabricated membranes were characterized to ensure the integration of the photocatalysts. The performance of the membranes for water treatment was assessed by selecting some common dyes as model pollutants. The modified membranes exhibited excellent flux recovery and could afford high rejection rates upon irradiation indicating the prospects for sustainable filtration.
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Affiliation(s)
- Merin Joseph
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, Kerala, India
| | - Fredin Paulson
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, Kerala, India
| | - Nasrin C
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, Kerala, India
| | - Aparna S
- School of Environmental Studies, Cochin University of Science and Technology, Kochi, Kerala, India
| | - Sebastian Nybin Remello
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, Kerala, India; Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kochi, Kerala, India
| | - Suja Haridas
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, Kerala, India; Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kochi, Kerala, India.
| | - Usha K Aravind
- School of Environmental Studies, Cochin University of Science and Technology, Kochi, Kerala, India.
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Yavuzturk Gul B, Orhun Teber O, Tuncay G, Pekgenc E, Arabi N, Hemmati-Eslamlu P, Habibi-Yangjeh A, Vatanpour V, Koyuncu I. Modification of PAN electrospun nanofiber membranes with g-C 3N 4 nanotubes/carbon dots to enhance MBR performance. CHEMOSPHERE 2024; 349:140866. [PMID: 38056719 DOI: 10.1016/j.chemosphere.2023.140866] [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: 07/31/2023] [Revised: 11/26/2023] [Accepted: 11/29/2023] [Indexed: 12/08/2023]
Abstract
This study is dedicated to the enhancement of electrospun polyacrylonitrile (PAN) nanofiber membranes for their application in membrane bioreactor (MBR) processes. The improvement is achieved through the incorporation of graphitic carbon nitride nanotubes/carbon dots (g-C3N4 NT/CDs) and subsequent heat post-treatments at varying temperatures. Notably, the hot-pressing methodology effectively mitigates surface roughness and significantly reduces issues related to peeling during nanofiber experimentation. Our results demonstrate that the introduction of 0.5 wt% of g-C3N4 NT/CDs leads to a substantial enhancement in water flux. In particular, nanocomposite membranes subjected to hot-pressing at 90 °C for 10 min exhibited an impressive flux recovery ratio (FRR) of 70%. Furthermore, the heat-treated nanocomposite membranes exhibited remarkable antifouling properties and significantly reduced fouling rates when compared to their heat-treated bare counterparts. This study underscores the noteworthy potential of g-C3N4 NT/CDs-modified PAN nanofiber membranes to substantially elevate MBR performance, firmly positioning them as highly promising candidates for critical applications in the domains of water and wastewater treatment. However, it is imperative to underscore that the existing written material necessitates a comprehensive overhaul to align with the provided structural framework.
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Affiliation(s)
- Bahar Yavuzturk Gul
- National Research Center on Membrane Technologies (MEM-TEK), Istanbul Technical University, Maslak 34469, Istanbul, Turkey; Department of Environmental Engineering, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey
| | - Oguz Orhun Teber
- National Research Center on Membrane Technologies (MEM-TEK), Istanbul Technical University, Maslak 34469, Istanbul, Turkey; Nano Science and Nano Engineering Department, Istanbul Technical University, Maslak, Istanbul 34469, Turkey
| | - Gizem Tuncay
- National Research Center on Membrane Technologies (MEM-TEK), Istanbul Technical University, Maslak 34469, Istanbul, Turkey; Department of Environmental Engineering, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey
| | - Enise Pekgenc
- National Research Center on Membrane Technologies (MEM-TEK), Istanbul Technical University, Maslak 34469, Istanbul, Turkey; Department of Environmental Engineering, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey
| | - Nigar Arabi
- National Research Center on Membrane Technologies (MEM-TEK), Istanbul Technical University, Maslak 34469, Istanbul, Turkey
| | - Paria Hemmati-Eslamlu
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Aziz Habibi-Yangjeh
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Vahid Vatanpour
- National Research Center on Membrane Technologies (MEM-TEK), Istanbul Technical University, Maslak 34469, Istanbul, Turkey; Department of Applied Chemistry, Faculty of Chemistry, Kharazmi University, 15719-14911, Tehran, Iran.
| | - Ismail Koyuncu
- National Research Center on Membrane Technologies (MEM-TEK), Istanbul Technical University, Maslak 34469, Istanbul, Turkey; Department of Environmental Engineering, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey.
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5
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Wang Y, Gong J, Li J, Sang F, Fang S, Zhou H, Tang L, Niu Q. Double-charged self-assembled rGO/g-C 3N 4 membrane prepared by "functional group substitution" for heavy metal ions rejection at low pressure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 865:161234. [PMID: 36592914 DOI: 10.1016/j.scitotenv.2022.161234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/06/2022] [Accepted: 12/23/2022] [Indexed: 06/17/2023]
Abstract
Heavy metals are still the critical pollutants in industrial wastewater and there is an urgent need for efficient and environmentally friendly treatment technologies. Reduced graphene oxide (rGO) is widely used for preparations of nanofiltration (NF) membranes but suffers from poor hydrophilicity and electronegativity. In this work, a double-charged rGO/g-C3N4-P membrane was prepared for removal of heavy metals at low pressure. Graphitic carbon nitride (g-C3N4) assisted reduction of GO membranes under ultraviolet (UV) irradiation, and the modification of functional groups with high polarity improved the hydrophilicity of membrane surface. The filtration performance for heavy metals of rGO/g-C3N4-P membrane was evaluated under low pressure (1-2 bar). The rejection rates of Cu2+, Cr3+, Mn2+, Cd2+, and Pb2+ by membranes reduced by UV for 18 h (rGO/g-C3N4-18-P membrane) reached 94.72 %, 98.05 %, 82.32 %, 88.2 % and 77.15 %, respectively. In the experiment of mixed simulated wastewater, the rejection rates of NO3- and SO42- both reached >95 %. Outstanding rejection rates were attributed to the interaction and the synergy effect of double-charged layers as well as steric effects. Meanwhile, the water flux of rGO/g-C3N4-18-P membrane was as high as 37.14-50.16 L m-2h-1bar-1 (1-2 bar). The high flux was due to the reduced degree of oxidation so that water molecules transported between GO nanochannels more smoothly and the transport path was shortened through the nanopores of g-C3N4. Obviously, flux and heavy metal rejection of rGO/g-C3N4-18-P membrane were simultaneously improved, breaking "trade-off" effect. Furthermore, rGO/g-C3N4-18-P membrane showed excellent antifouling ability and the potential for heavy metal wastewater filtration in comparison with other NF membranes reported in literature.
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Affiliation(s)
- Yuwen Wang
- College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China; State Environmental Protection Key Laboratory of Monitoring for Heavy Metal Pollutants, Changsha 410082, PR China
| | - Jilai Gong
- College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China; State Environmental Protection Key Laboratory of Monitoring for Heavy Metal Pollutants, Changsha 410082, PR China; Shenzhen Institute, Hunan University, Shenzhen 518000, PR China.
| | - Juan Li
- College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China; State Environmental Protection Key Laboratory of Monitoring for Heavy Metal Pollutants, Changsha 410082, PR China; Shenzhen Institute, Hunan University, Shenzhen 518000, PR China
| | - Fan Sang
- College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China; State Environmental Protection Key Laboratory of Monitoring for Heavy Metal Pollutants, Changsha 410082, PR China
| | - Siyuan Fang
- College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China; State Environmental Protection Key Laboratory of Monitoring for Heavy Metal Pollutants, Changsha 410082, PR China
| | - Huaiyang Zhou
- College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China; State Environmental Protection Key Laboratory of Monitoring for Heavy Metal Pollutants, Changsha 410082, PR China
| | - Liangxiu Tang
- College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China; State Environmental Protection Key Laboratory of Monitoring for Heavy Metal Pollutants, Changsha 410082, PR China
| | - Qiuya Niu
- College of Environmental Science and Engineering, Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China
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6
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Song Y, Li Y, Chen X, Meng C, Ma S, Li T, Jiang K, Hu C. Simultaneous degradation and separation of antibiotics in sewage effluent by photocatalytic nanofiltration membrane in a continuous dynamic process. WATER RESEARCH 2023; 229:119460. [PMID: 36493700 DOI: 10.1016/j.watres.2022.119460] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 12/02/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
Bifunctional photocatalytic nanofiltration (PNF) membrane is increasingly concerned in practical micro-polluted water purification, but there are still several bottlenecks that inhibit its practicality. In this context, the feasibility of a novel metal-free and visible light-responsive surface-anchored PNF membrane for simultaneously removing target antibiotics in real sewage effluent in a continuous dynamic process was explored. The results showed that the optimal PNF-4 membrane was expectedly consisted of an inside tight sub-nanopore structured separation layer and an outside thinner, smoother, super hydrophilic mesoporous degradation layer, respectively. Consequently, the activated PNF-4 membrane could synergistically reduce trimethoprim and sulfamethoxazole concentrations to below two orders of magnitude, accompanying with almost constant high water permeability, suggesting that the hydrophilic modification of the mesoporous degradation layer basically offsets its inherent hydraulic resistance. Also, after repeating the fouling-physical rinsing process three times lasted for 78 h, only sporadic adherent contaminants remained onto the top surface, together with the minimal total and irreversible fouling ratios (as low as 7.2% and 1.2%, respectively), strongly demonstrated that PNF-4 membrane displayed good self-cleaning performance. Undoubtedly, this will significantly reduce its potential cleaning frequency and maintenance cost in long-term operation. Meanwhile, the acute and chronic biotoxicities of its permeate to Virbrio qinghaiensis sp. -67 were also reduced sharply to 2.22% and 0.45%, respectively. All of these evidences suggest that the dual functions of PNF-4 membrane are synergetic in an uninterrupted permeating process. It will provide useful insights for continuously enhancing the practicality and effectiveness of PNF membrane in actual micro-polluted water purification scenarios.
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Affiliation(s)
- Yuefei Song
- Key Laboratory of Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, School of Environment, Henan Normal University, 46 East of Construction Road, Xinxiang 453007, China.
| | - Yajuan Li
- Key Laboratory of Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, School of Environment, Henan Normal University, 46 East of Construction Road, Xinxiang 453007, China
| | - Xiaomei Chen
- Key Laboratory of Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, School of Environment, Henan Normal University, 46 East of Construction Road, Xinxiang 453007, China
| | - Chunchun Meng
- Key Laboratory of Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, School of Environment, Henan Normal University, 46 East of Construction Road, Xinxiang 453007, China
| | - Saifei Ma
- Key Laboratory of Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, School of Environment, Henan Normal University, 46 East of Construction Road, Xinxiang 453007, China
| | - Tiemei Li
- Key Laboratory of Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, School of Environment, Henan Normal University, 46 East of Construction Road, Xinxiang 453007, China
| | - Kai Jiang
- Key Laboratory of Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, School of Environment, Henan Normal University, 46 East of Construction Road, Xinxiang 453007, China
| | - Chun Hu
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education; Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou 510006, China.
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Huang J, Yu H, Yuan X, Li X, Jiang L, Yi K, Zhang C. Construction of PDIsa/BiOBr type-I scheme heterojunction for efficient ciprofloxacin photocatalytic degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:19210-19223. [PMID: 36227492 DOI: 10.1007/s11356-022-23503-w] [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: 07/28/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Fabrication of heterojunction photocatalysts is a promising strategy for enhancing photocatalytic activity. However, the study about traditional type-I heterojunction still remains to be developed. Herein, a PDIsa/BiOBr traditional type-I heterojunction was constructed by electrostatic self-assembly method, which owned improved light absorption capacity and photogenerated charge separation efficiency. The interfacial electric field and the polarization electric field of PDIsa impelled the separation of excitons. The degradation rate of ciprofloxacin (CIP) was improved by 3.2 times over the optimal PDIsa/BiOBr composite than pure BiOBr. In addition, the TOC removal efficiency reached 67.34% within 120 min. Trapping experiments and electron spin resonance (ESR) tests showed that superoxide radical (•O2-) was the most active species, and singlet oxygen (1O2) and hole (h+) played a secondary role. The work may furnish a new reference for designing BiOBr-based type-I heterojunction.
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Affiliation(s)
- Jinhui Huang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, People's Republic of China.
- Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, People's Republic of China.
| | - Hanbo Yu
- School of Hydraulic and Environmental Engineering, Changsha University of Science & Technology, Changsha, 410114, China.
- Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, 410114, China.
| | - Xingzhong Yuan
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, People's Republic of China
- Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, People's Republic of China
| | - Xue Li
- Department of Bioengineering and Enviromental Science, Changsha University, Changsha, 410003, People's Republic of China
| | - Longbo Jiang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, People's Republic of China
- Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, People's Republic of China
| | - Kaixin Yi
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, People's Republic of China
- Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, People's Republic of China
| | - Chenyu Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, People's Republic of China
- Key Laboratory of Environment Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, People's Republic of China
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8
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Qamar MA, Javed M, Shahid S, Shariq M, Fadhali MM, Ali SK, Khan MS. Synthesis and applications of graphitic carbon nitride (g-C 3N 4) based membranes for wastewater treatment: A critical review. Heliyon 2023; 9:e12685. [PMID: 36660457 PMCID: PMC9842699 DOI: 10.1016/j.heliyon.2022.e12685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/21/2022] [Accepted: 12/21/2022] [Indexed: 01/05/2023] Open
Abstract
Semiconducting membrane combined with nanomaterials is an auspicious combination that may successfully eliminate diverse waste products from water while consuming little energy and reducing pollution. Creating an inexpensive, steady, flexible, and diversified business material for membrane production is a critical challenge in membrane technology development. Because of its unusual structure and high catalytic activity, graphitic carbon nitride (g-C3N4) has come out as a viable material for membranes. Furthermore, their great durability, high permanency under challenging environments, and long-term use without decrease in flux are significant advantages. The advanced material techniques used to manage the molecular assembly of g-C3N4 for separation membrane were detailed in this review work. The progress in using g-C3N4-based membranes for water treatment has been detailed in this presentation. The review delivers an updated description of g-C3N4 based membranes and their separation functions and new ideas for future enhancements/adjustments to address their weaknesses in real-world situations. Finally, the ongoing problems and promising future research directions for g-C3N4-based membranes are discussed.
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Affiliation(s)
- Muhammad Azam Qamar
- Department of Chemistry, School of Science, University of Management and Technology, Lahore, 54770, Pakistan,Corresponding author.
| | - Mohsin Javed
- Department of Chemistry, School of Science, University of Management and Technology, Lahore, 54770, Pakistan
| | - Sammia Shahid
- Department of Chemistry, School of Science, University of Management and Technology, Lahore, 54770, Pakistan
| | - Mohammad Shariq
- Department of Physics, College of Science, Jazan University, Jazan, 45142, Saudi Arabia
| | - Mohammed M. Fadhali
- Department of Physics, College of Science, Jazan University, Jazan, 45142, Saudi Arabia,Department of Physics, Faculty of Science, Ibb University, Ibb, 70270, Yemen
| | - Syed Kashif Ali
- Department of Chemistry, College of Science, Jazan University, Jazan, 45142, Saudi Arabia
| | - Mohd. Shakir Khan
- Department of Physics, College of Science, Al- Zulfi, Majmaah University, Al- Majmaah, 11952, Saudi Arabia
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9
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Balakrishnan A, Chinthala M, Polagani RK, Vo DVN. Removal of tetracycline from wastewater using g-C 3N 4 based photocatalysts: A review. ENVIRONMENTAL RESEARCH 2023; 216:114660. [PMID: 36368373 DOI: 10.1016/j.envres.2022.114660] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 09/19/2022] [Accepted: 10/22/2022] [Indexed: 06/16/2023]
Abstract
Tetracycline is currently one of the most consumed antibiotics for human therapy, veterinary purpose, and agricultural activities. Tetracycline worldwide consumption is expected to rise by about more than 30% by 2030. The persistence of tetracycline has necessitated implementing and adopting strategies to protect aquatic systems and the environment from noxious pollutants. Here, graphitic carbon nitride-based photocatalytic technology is considered because of higher visible light photocatalytic activity, low cost, and non-toxicity. Thus, this review highlights the recent progress in the photocatalytic degradation of tetracycline using g-C3N4-based photocatalysts. Additionally, properties, worldwide consumption, occurrence, and environmental impacts of tetracycline are comprehensively addressed. Studies proved the occurrence of tetracycline in all water matrices across the world with a maximum concentration of 54 μg/L. Among different g-C3N4-based materials, heterojunctions exhibited the maximum photocatalytic degradation of 100% with the reusability of 5 cycles. The photocatalytic membranes are found to be feasible due to easiness in recovery and better reusability. Limitations of g-C3N4-based wastewater treatment technology and efficient solutions are also emphasized in detail.
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Affiliation(s)
- Akash Balakrishnan
- Process Intensification Laboratory, Department of Chemical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, 769 008, India
| | - Mahendra Chinthala
- Process Intensification Laboratory, Department of Chemical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, 769 008, India.
| | - Rajesh Kumar Polagani
- Department of Chemical Engineering, Bheemanna Khandre Institute of Technology, Bhalki, India
| | - Dai-Viet N Vo
- Center of Excellence for Green Energy and Environmental Nanomaterials (CE@GrEEN), Nguyen Tat Thanh University, Ho Chi Minh City, Viet Nam.
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Zhang M, Bao Y, Hou LA, Gao K, Yang Y. Will the photocatalytic ceramic membrane be the solution for the next generation of photocatalysis? - A comprehensive comparison between g-C3N4 powder and g-C3N4 modified ceramic membrane. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122440] [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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11
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Zhang X, Liu Y, Zhang F, Fang W, Jin J, Zhu Y. Nanofibrous Janus membrane with improved self-cleaning property for efficient oil-in-water and water-in-oil emulsions separation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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12
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Fabrication and evaluation of a photocatalytic membrane based on Sb2O3/CBO composite for improvement of dye removal efficiency. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133957] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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13
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Liu R, Li X, Huang J, Pang H, Wan Q, Luo K, Pang Y, Wang L. Synthesis and Characterization of g-C 3N 4/Ag 3PO 4/TiO 2/PVDF Membrane with Remarkable Self-Cleaning Properties for Rhodamine B Removal. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:15551. [PMID: 36497625 PMCID: PMC9739520 DOI: 10.3390/ijerph192315551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/17/2022] [Accepted: 11/20/2022] [Indexed: 06/17/2023]
Abstract
g-C3N4/Ag3PO4/TiO2 nanocomposite materials were loaded onto a polyvinylidene fluoride (PVDF) membrane using a phase inversion method to obtain a photocatalytic flat membrane for dye removal. The morphology, structure, and photocatalytic activity of the g-C3N4/Ag3PO4/TiO2 nanoparticles and composite membrane were evaluated. The g-C3N4/Ag3PO4/TiO2/PVDF membrane exhibited superior morphology, hydrophilic properties, and antifouling performance compared with the raw PVDF membrane. Four-stage filtration was performed to evaluate the self-cleaning and antifouling capacity of the g-C3N4/Ag3PO4/TiO2/PVDF membrane. Upon irradiating the composite membrane with visible light for 30 min, its irreversible fouling resistance (Rir) was low (9%), and its flux recovery rate (FRR) was high (71.0%) after five filtration cycles. The removal rate of rhodamine B (RhB) from the composite membrane under visible light irradiation reached 98.1% owing to the high photocatalytic activity of the membrane, which was superior to that of raw PVDF membrane (42.5%). A mechanism of photocatalytic composite membranes for RhB degradation was proposed. Therefore, this study is expected to broaden prospects in the field of membrane filtration technology.
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Affiliation(s)
- Renguo Liu
- Hunan Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha 410022, China
| | - Xue Li
- Hunan Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha 410022, China
| | - Jinhui Huang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
| | - Haoliang Pang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
| | - Qiongfang Wan
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
| | - Kun Luo
- Hunan Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha 410022, China
| | - Ya Pang
- Hunan Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha 410022, China
| | - Lingyu Wang
- Hunan Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha 410022, China
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14
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Application of g-C3N4/ZnO nanocomposites for fabrication of anti-fouling polymer membranes with dye and protein rejection superiority. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120893] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Preparation and Performance Evaluation of BiOI Photocatalytic Film. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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16
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Xiong G, Zhang Z, Qi Y. Preparation of g-C 3N 4/TNTs/CNTs Photocatalytic Composite Powder and Its Enhancement of Antifouling Performance of Polydimethylsiloxane Coatings. NANOMATERIALS 2022; 12:nano12142442. [PMID: 35889666 PMCID: PMC9320443 DOI: 10.3390/nano12142442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/10/2022] [Accepted: 07/15/2022] [Indexed: 02/05/2023]
Abstract
Semiconductor photocatalytic materials have shown potential in the field of antifouling due to their good antibacterial properties, stability, and nontoxic properties. It is an effective way to use them to improve the static antifouling performance of silicone antifouling coatings. g-C3N4/TNTs/CNTs (CNTC) photocatalytic composite powders were prepared and introduced into polydimethylsiloxane (PDMS) coatings to enhance their antifouling performance. Firstly, g-C3N4/TNTs with heterostructure were thermally polymerized by urea and TiO2 nanotubes (TNTs), and then g-C3N4/TNTs and multi-walled carbon nanotubes (CNTs) were composited to obtain CNTC. Finally, CNTC was added into PDMS to prepare g-C3N4/TNTs/CNTs/PDMS (CNTC/P) composite antifouling coating. The results showed that CNTC successfully recombined and formed a heterostructure, and the recombination rate of photogenerated carriers decreased after recombination. The addition of CNTC to PDMS increased the hydrophobicity and roughness while reducing the surface energy (SE) of the coatings. CNTC could effectively improve the anti-attachment performance of PDMS coatings to bacteria and benthic diatom. The bacterial attachment rate (AB) and benthic diatom attachment rate (AD) of CNTC/P-20 were, respectively, 13.1% and 63.1%; they are much lower than that of the coating without photocatalytic composite powder. This coating design provides a new idea for developing new “efficient” and “green” photocatalytic composite antifouling coatings.
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Affiliation(s)
- Gang Xiong
- Key Laboratory of Ship-Machinery Maintenance & Manufacture, Dalian Maritime University, Dalian 116000, China; (G.X.); (Y.Q.)
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116000, China
| | - Zhanping Zhang
- Key Laboratory of Ship-Machinery Maintenance & Manufacture, Dalian Maritime University, Dalian 116000, China; (G.X.); (Y.Q.)
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116000, China
- Correspondence:
| | - Yuhong Qi
- Key Laboratory of Ship-Machinery Maintenance & Manufacture, Dalian Maritime University, Dalian 116000, China; (G.X.); (Y.Q.)
- Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116000, China
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17
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A self-cleaning photocatalytic composite membrane based on g-C3N4@MXene nanosheets for the removal of dyes and antibiotics from wastewater. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121037] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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18
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Li X, Huang G, Li Y, Chen X, Yao Y, Liang Y, Huang J, Zhao K, Yin J. Low-Cost ceramic disk filters coated with Graphitic carbon nitride (g-C3N4) for drinking water disinfection and purification. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120999] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Balakrishnan A, Chinthala M. Comprehensive review on advanced reusability of g-C 3N 4 based photocatalysts for the removal of organic pollutants. CHEMOSPHERE 2022; 297:134190. [PMID: 35248593 DOI: 10.1016/j.chemosphere.2022.134190] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/24/2022] [Accepted: 03/01/2022] [Indexed: 05/19/2023]
Abstract
Graphitic carbon nitride (g-C3N4) has attained significant research attention in energy and environmental remediation due to its excellent electronic structure, greater physical and chemical properties, and abundance. However, graphitic carbon nitride faces severe problems because of its high recombination rate and higher mass loss of the catalyst during recovery operations. This review emphasizes the methods to overcome the difficulties associated with recovery and reusability of the g-C3N4 based photocatalyst towards the redemption of pollutants present in wastewater. Different strategies like magnetic g-C3N4 based photocatalysts, immobilized photocatalytic systems, and photocatalytic membranes and their usage in photocatalytic applications are well described. Different preparation strategies of the graphic carbon nitride-based composites are elucidated. The key challenges and future perspectives of adopting these methods for photocatalytic applications are also mentioned.
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Affiliation(s)
- Akash Balakrishnan
- Process Intensification Laboratory, Department of Chemical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, 769 008, India
| | - Mahendra Chinthala
- Process Intensification Laboratory, Department of Chemical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, 769 008, India.
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20
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Raaja Rajeshwari M, Kokilavani S, Sudheer Khan S. Recent developments in architecturing the g-C 3N 4 based nanostructured photocatalysts: Synthesis, modifications and applications in water treatment. CHEMOSPHERE 2022; 291:132735. [PMID: 34756947 DOI: 10.1016/j.chemosphere.2021.132735] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/25/2021] [Accepted: 10/27/2021] [Indexed: 06/13/2023]
Abstract
Water pollution is becoming an inevitable problem in today's world. Tons and tons of wastewater with hazardous pollutants are getting discharged into the clean water bodies every day. In this regard, photocatalytic environmental remediation using nanotechnology such as the use of organic, metal and non-metal based semiconductor photocatalysts for photodegradation of pollutants has gained enormous attention in the past few decades. This review is focused particularly on graphitic carbon nitride (g-C3N4) which is a cheap, metal-free, polymeric photoactive compound and it is used as a potential photocatalyst in wastewater treatment. Though, pristine g-C3N4 is a good photocatalyst, it has certain drawbacks such as poor visible light absorption capacity, quicker recombination of photoelectrons and holes, delayed mass and charge transfer, etc. As a result, the pristine g-C3N4 catalyst is modified into novel 0D, 1D, 2D and 3D morphologies such as nano-quantum dots, nanorods, nanotubes, nanowires, nanosheets, nanoflakes, nanospheres, nanoshells, etc. It was also tailored into novel composites along with various compounds through doping, metal deposition, heterojunction formation, etc., to enhance the photocatalytic property of pure g-C3N4. The modified catalysts showed promising photocatalytic performance such as degradation of majority of pollutants in the environment. It also showed excellent results in the removal or reduction of heavy metals. This review provides a detailed record of g-C3N4 and its diverse photocatalytic applications in the past years and it provides knowledge for the development of such similar novel compounds in the future.
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Affiliation(s)
- M Raaja Rajeshwari
- Nanobiotechnology Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu, India
| | - S Kokilavani
- Nanobiotechnology Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu, India
| | - S Sudheer Khan
- Nanobiotechnology Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu, India.
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21
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Abstract
The efficient monitoring of the environment is currently gaining a continuous growing interest in view of finding solutions for the global pollution issues and their associated climate change. In this sense, two-dimensional (2D) materials appear as one of highly attractive routes for the development of efficient sensing devices due, in particular, to the interesting blend of their superlative properties. For instance, graphene (Gr) and graphitic carbon nitride g-C3N4 (g-CN) have specifically attracted great attention in several domains of sensing applications owing to their excellent electronic and physical-chemical properties. Despite the high potential they offer in the development and fabrication of high-performance gas-sensing devices, an exhaustive comparison between Gr and g-CN is not well established yet regarding their electronic properties and their sensing performances such as sensitivity and selectivity. Hence, this work aims at providing a state-of-the-art overview of the latest experimental advances in the fabrication, characterization, development, and implementation of these 2D materials in gas-sensing applications. Then, the reported results are compared to our numerical simulations using density functional theory carried out on the interactions of Gr and g-CN with some selected hazardous gases’ molecules such as NO2, CO2, and HF. Our findings conform with the superior performances of the g-CN regarding HF detection, while both g-CN and Gr show comparable detection performances for the remaining considered gases. This allows suggesting an outlook regarding the future use of these 2D materials as high-performance gas sensors.
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22
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Gao B, Dou M, Wang J, Zhuang T, Li P, Yang F, Wang D, Ci L, Fu Y. Effect of carbon nitride synthesized by different modification strategies on the performance of carbon nitride/PVDF photocatalytic composite membranes. JOURNAL OF HAZARDOUS MATERIALS 2022; 422:126877. [PMID: 34425428 DOI: 10.1016/j.jhazmat.2021.126877] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 08/05/2021] [Accepted: 08/07/2021] [Indexed: 06/13/2023]
Abstract
Carbon nitride (CN)/polyvinylidene fluoride (PVDF) photocatalytic composite membrane (PCM) is considered as a promising candidate to improve the anti-fouling characteristic of conventional PVDF membrane and overcome the difficulty encountered during recovery of powder catalyst simultaneously. However, the effects of differently-modified CN on PCM and its mechanism are still unclear. In this study, bulk-CN (BCN), carbon defects CN (CCN), nitrogen defect CN (DCN), mesoporous CN (MCN), and nitrogen-rich CN (NCN) were incorporated into PVDF by phase inversion method. The influence of changes in the physical and chemical properties of CN, including hydrophilic groups, photocatalytic activity, and particle size, on the permeability, anti-fouling characteristic, and photocatalytic self-cleaning activity of CN/PVDF was systematically analyzed. The mechanism of excellent performance of PCM was revealed by experimental test and theoretical calculation. The flux of PCM was significantly improved by increasing the hydrophilic group on modified CN. However, the differences in particle size and interaction between different types of modified CN and PVDF chains endowed the CN/PVDF with different porosity. DCN/PVDF showed high porosity and hydrophilicity, leading to high water flux and rejection rate of 293.6 L (m2 h)-1 and 90.1%, respectively. Compared to pure PVDF, the flux recovery rate of DCN30/PVDF increased by 27.6%, and the irreversible fouling decreased from 36.9% to 9.2%. The modified CN/PVDF showed excellent photocatalytic activity for the removal of cefotaxime (CFX) and E. coli. Owing to the narrow band gap of DCN, large specific surface area, and low photogenerated carrier recombination rate, the CFX removal rate reached 99% in 2 h, and E. coli inactivation achieved 3.7 log within 4 h via DCN30/PVDF.
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Affiliation(s)
- Boru Gao
- Department of Municipal and Environmental Engineering, Beijing Key Laboratory of Aqueous Typical Pollutants Control and Water Quality Safeguard, Beijing Jiaotong University, Haidian District, Beijing 100044, China
| | - Mengmeng Dou
- Department of Municipal and Environmental Engineering, Beijing Key Laboratory of Aqueous Typical Pollutants Control and Water Quality Safeguard, Beijing Jiaotong University, Haidian District, Beijing 100044, China
| | - Jin Wang
- Department of Municipal and Environmental Engineering, Beijing Key Laboratory of Aqueous Typical Pollutants Control and Water Quality Safeguard, Beijing Jiaotong University, Haidian District, Beijing 100044, China.
| | - Tao Zhuang
- Jinan Environmental Research Academy, Jinan 250102, China
| | - Pengyang Li
- Department of Municipal and Environmental Engineering, Beijing Key Laboratory of Aqueous Typical Pollutants Control and Water Quality Safeguard, Beijing Jiaotong University, Haidian District, Beijing 100044, China
| | - Fan Yang
- Department of Municipal and Environmental Engineering, Beijing Key Laboratory of Aqueous Typical Pollutants Control and Water Quality Safeguard, Beijing Jiaotong University, Haidian District, Beijing 100044, China
| | - Dongying Wang
- Jinan Environmental Research Academy, Jinan 250102, China
| | - Lin Ci
- Jinan Environmental Research Academy, Jinan 250102, China
| | - Yao Fu
- Jinan Environmental Research Academy, Jinan 250102, China
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23
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Krishnan SAG, Abinaya S, Arthanareeswaran G, Govindaraju S, Yun K. Surface-constructing of visible-light Bi 2WO 6/CeO 2 nanophotocatalyst grafted PVDF membrane for degradation of tetracycline and humic acid. JOURNAL OF HAZARDOUS MATERIALS 2022; 421:126747. [PMID: 34364210 DOI: 10.1016/j.jhazmat.2021.126747] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 07/13/2021] [Accepted: 07/24/2021] [Indexed: 06/13/2023]
Abstract
The synthesis of Bi2WO6 and CeO2 photocatalytic nanomaterials exhibit a great ability to photodegrade the antibiotics and shown excellent oxidation of various organic pollutants. Heterostructure 1:1 & 2:1 Bi2WO6/CeO2 nanocomposite was successfully synthesized via the facile sono-dispersion method and exquisite photocatalytic activity. The 0.5 wt% of nanocomposites were well-grafted on PVDF membrane surface via an in-situ polymerization method using polyacrylic acid. The fourier transform infrared (FTIR) spectra demonstrated that the network formation in PVDF induced by the -COOH functional group in acrylic acid. The grafted membrane morphology and strong binding ability over the membranes were validated by scanning electron microscope with energy dispersion (SEM-EDS) and X-ray photoelectron spectroscopy (XPS), respectively. The permeate flux of 49.2 L.m-2 h-1 and 41.65 L.m-2 h were observed for tetracycline and the humic acid solution respectively for 1 wt% of PVP and 0.5 wt% of photocatalytic nanomaterials in PVDF membrane. The tetracycline and humic acid photodegradation rate of 82% and 78% and total resistance of 1.43 × 1010 m-1 and 1.64 × 1010 m-1, 83.5% and 77% flux recovery ratio were observed with N5 membrane. The 2:1 Bi2WO6/CeO2 nanocomposite grafted membrane showed a high permeate flux and better photodegradation ability of organic pollutants in the wastewater.
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Affiliation(s)
- S A Gokula Krishnan
- Membrane Research Laboratory, Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli, India 620015
| | - S Abinaya
- Membrane Research Laboratory, Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli, India 620015
| | - G Arthanareeswaran
- Membrane Research Laboratory, Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli, India 620015.
| | | | - Kyusik Yun
- Department of BioNano Technology, Gachon University, Seongnam-si, South Korea
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25
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Oseghe EO, Akpotu SO, Mombeshora ET, Oladipo AO, Ombaka LM, Maria BB, Idris AO, Mamba G, Ndlwana L, Ayanda OS, Ofomaja AE, Nyamori VO, Feleni U, Nkambule TT, Msagati TA, Mamba BB, Bahnemann DW. Multi-dimensional applications of graphitic carbon nitride nanomaterials – A review. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117820] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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26
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Liu L, Huang J, Yu H, Wan J, Liu L, Yi K, Zhang W, Zhang C. Construction of MoO 3 nanopaticles /g-C 3N 4 nanosheets 0D/2D heterojuntion photocatalysts for enhanced photocatalytic degradation of antibiotic pollutant. CHEMOSPHERE 2021; 282:131049. [PMID: 34098307 DOI: 10.1016/j.chemosphere.2021.131049] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 05/03/2021] [Accepted: 05/26/2021] [Indexed: 06/12/2023]
Abstract
A new type of 0D-2D Z-scheme heterojunction photocatalyst (MoO3/g-C3N4) was successfully prepared via simple hydrothermal calcination method. The catalytic activities of MoO3/g-C3N4 was evaluated by the degradation effect of tetracycline. The results indicated that the 0D-2D MoO3/g-C3N4 Z-scheme heterojunction was significantly better than that of original g-C3N4. Especially, the optimal 0.5 wt% MoO3/g-C3N4 could reach 85.9% removal efficiency within 100 min under visible light irradiation (λ > 420 nm), and its degradation rate constant was 2.3 times higher than that of g-C3N4·In addition, the effects of real water matrix, natural sunlight irradiation on tetracycline removal were examined. Reactive-species-trapping experiments show that both photo-generated •O2- and h+ are the main active species in the photocatalytic process. Besides, the results of •O2- and •OH detection further indicated that the yield amount of •O2- and •OH in MoO3/g-C3N4 case showed enhancement when compared with g-C3N4. Moreover, the quite stable crystal structure and excellent recycling ability endowed the MoO3/g-C3N4 composite with a great potential for applying in photocatalytic fields.
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Affiliation(s)
- Lishuo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Jinhui Huang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China.
| | - Hanbo Yu
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Jia Wan
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Lianyu Liu
- College of Environment and Resources, Shanxi University, Taiyuan, 030000, China
| | - Kaixin Yi
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Wei Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Chenyu Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
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27
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Baig U, Faizan M, Sajid M. Semiconducting graphitic carbon nitride integrated membranes for sustainable production of clean water: A review. CHEMOSPHERE 2021; 282:130898. [PMID: 34098310 DOI: 10.1016/j.chemosphere.2021.130898] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 05/09/2021] [Accepted: 05/14/2021] [Indexed: 06/12/2023]
Abstract
Semiconducting membranes integrated with nanomaterials have placed themselves in new emerging researches tremendously for seawater desalination, oil-water separation, disinfection, removal of inorganic as well as organic pollutants. Howbeit, only nanoparticles unified membranes show quite a lot lags in their performance, although some of these particles associated with the demerits of high cost. In contrast, graphitic carbon nitride incorporated membranes offered improved aforementioned properties corresponding to absolute essential qualities such as cost-effective, environmentally friendly, easy-to-operate, green manufacturing, anti-fouling, and low energy consumption. Moreover, their high mechanical strength, high stability against harsh environment and long-term utilization without flux reduction are strong plus. Even though there are some undeniable downsides of these membranes in real world applications as bulk synthesis, consistent dispersion of graphitic carbon nitride, low photocatalytic efficiency etc. Accordingly, in the present article, these frailties of the membranes having graphitic carbon nitride as a filler and their respective synthesis procedures and properties are discussed. A comprehensive analysis over the application of semiconducting graphitic carbon nitride incorporated membranes with and without special surface modification; and exploration of the future challenges and difficulties associated to these membranes are also reviewed. Consequently, the current article provides brief overview about graphitic carbon nitride integrated composite membranes as well as their applications, and it finished up with new thoughts of further improvements/modifications to overcome their shortcomings in actual environmental conditions.
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Affiliation(s)
- Umair Baig
- Interdisciplinary Research Center for Membranes & Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia; Center for Research Excellence in Desalination & Water Treatment, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia.
| | - M Faizan
- Department of Mechanical Engineering, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Mohd Sajid
- Department of Chemical Engineering, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
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28
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Exploring the potential of photocatalytic dual layered hollow fiber membranes incorporated with hybrid titania nanotube-boron for agricultural wastewater reclamation. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119136] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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29
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Li X, Huang G, Chen X, Huang J, Li M, Yin J, Liang Y, Yao Y, Li Y. A review on graphitic carbon nitride (g-C 3N 4) based hybrid membranes for water and wastewater treatment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 792:148462. [PMID: 34465053 DOI: 10.1016/j.scitotenv.2021.148462] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/27/2021] [Accepted: 06/10/2021] [Indexed: 05/15/2023]
Abstract
Graphitic carbon nitride (g-C3N4) has gained enormous attention for water and wastewater treatment. Compared with g-C3N4 nanopowders, g-C3N4 based hybrid membranes have demonstrated great potential for its superior practicability. This review outlines the preparation and characterization of g-C3N4 based hybrid membranes and presents their representative applications in water and wastewater treatment (e.g., removal of organic dyes, phenolic compounds, pharmaceuticals, salt ions, heavy metals, and oils). Meanwhile, g-C3N4 based films for the removal of contaminants through photocatalytic degradation is also summarized. In addition, the corresponding mechanisms and relevant findings are discussed. Finally, the challenges and research needs in the future and application of g-C3N4 based hybrid membranes are highlighted.
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Affiliation(s)
- Xiang Li
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Guohe Huang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, China-Canada Center for Energy, Environment and Ecology Research, UR-BNU, School of Environment, Beijing Normal University, Beijing 100875, China.
| | - Xiujuan Chen
- Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, SK S4S 0A2, Canada
| | - Jing Huang
- Faculty of Engineering and Applied Science, University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - Mengna Li
- Faculty of Engineering and Applied Science, University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - Jianan Yin
- Faculty of Engineering and Applied Science, University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - Ying Liang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Yao Yao
- Faculty of Engineering and Applied Science, University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - Yongping Li
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, China-Canada Center for Energy, Environment and Ecology Research, UR-BNU, School of Environment, Beijing Normal University, Beijing 100875, China
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Gokulakrishnan SA, Arthanareeswaran G, László Z, Veréb G, Kertész S, Kweon J. Recent development of photocatalytic nanomaterials in mixed matrix membrane for emerging pollutants and fouling control, membrane cleaning process. CHEMOSPHERE 2021; 281:130891. [PMID: 34049085 DOI: 10.1016/j.chemosphere.2021.130891] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 04/23/2021] [Accepted: 05/10/2021] [Indexed: 06/12/2023]
Abstract
Membrane-based separation is an area of extensive research in wastewater treatment, which includes the control of pollution and reuse of water. The fabrication and modification membranes for prevention and reduction of pollution to provide quality water with fouling-free membranes through the wastewater treatment are the progressive approaches in the industries. Several research works have been extensively working on modification and fabrication polymer membranes with integration of advanced oxidation process (AOP) to overcome the membrane fouling. This review describes the modification of membranes with various nanomaterials such as inorganic and modified carbon which can be used for pollution control and enhance the anti-fouling properties of ultrafiltration membranes. The effects on nanomaterials loading percentage, nanomaterials interaction with the polymers and rejection performances of the surface tuned membrane are elaborated. Secondly, the fouled membrane chemical cleaning process and NaOCl adverse effect on polymer structure are critically investigated. Moreover, state-of-art in the photocatalytic self-cleaning process are reviewed in this manuscript, and future perspectives on fouling mitigation based on AOP integrated membrane technology have also discussed.
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Affiliation(s)
- S A Gokulakrishnan
- Membrane Research Laboratory, Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli, 620015, Tamil Nadu, India
| | - G Arthanareeswaran
- Membrane Research Laboratory, Department of Chemical Engineering, National Institute of Technology, Tiruchirappalli, 620015, Tamil Nadu, India.
| | - Zsuzsanna László
- Department of Biosystem Engineering, Faculty of Engineering, University of Szeged, Szeged, Hungary
| | - Gábor Veréb
- Department of Biosystem Engineering, Faculty of Engineering, University of Szeged, Szeged, Hungary
| | - Szabolcs Kertész
- Department of Biosystem Engineering, Faculty of Engineering, University of Szeged, Szeged, Hungary
| | - Jihyang Kweon
- Water Treatment and Membrane Laboratory, Department of Environmental Engineering, Konkuk University, Seoul, 05029, Republic of Korea
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Khurram R, Javed A, Ke R, Lena C, Wang Z. Visible Light-Driven GO/TiO 2-CA Nano-Photocatalytic Membranes: Assessment of Photocatalytic Response, Antifouling Character and Self-Cleaning Ability. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2021. [PMID: 34443852 PMCID: PMC8401995 DOI: 10.3390/nano11082021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/30/2021] [Accepted: 08/02/2021] [Indexed: 12/07/2022]
Abstract
Photocatalysis and membrane technology in a single unit is an ideal strategy for the development of wastewater treatment systems. In this work, novel GO (x wt%)/TiO2-CA hybrid membranes have been synthesized via a facile non-solvent induced phase inversion technique. The strategy aimed to address the following dilemmas: (1) Effective utilization of visible light and minimize e-/h+ recombination; (2) Enhanced separation capability and superior anti-fouling and self-cleaning ability. The experimental results reveal that the integration of nano-composite (GO/TiO2) boosts the membrane properties when compared to pristine CA and single photocatalyst employed membrane (GO-CA and TiO2-CA). The effect of GO content on the properties of the photocatalytic membrane has been determined by utilizing three different ratios of GO, viz. 0.5 wt%, 1 wt%, and 2 wt% designated as NC(1)-CA, NC(2)-CA, and NC(3)-CA, respectively. Amongst them, NC(3)-CA membrane showed state-of-the-art performance with an elevated photocatalytic response (four times higher than pristine CA membrane) toward methyl orange. Moreover, the water flux of NC(3)-CA membrane is 613 L/m2h, approximately three times higher than bare CA membrane (297 L/m2h), while keeping the MO rejection high (96.6%). Besides, fouling experiments presented the lowest total and fouling resistance ratios and a higher flux recovery ratio (91.78%) for the NC(3)-CA membrane, which endows the membrane with higher anti-fouling and self-cleaning properties. Thus, NC(3)-CA membrane outperforms the other as synthesized membranes in terms of separation efficiency, visible light photo-degradation of pollutant, anti-fouling and self-cleaning ability. Therefore, NC(3)-CA membrane is considered as the next generation membrane for exhibiting great potential for the wastewater treatment applications.
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Affiliation(s)
- Rooha Khurram
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing 100124, China; (R.K.); (C.L.)
| | - Aroosa Javed
- Department of Chemistry, School of Natural Sciences (S.N.S.), NUST, H-12, Islamabad 44000, Pakistan;
| | - Ruihua Ke
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing 100124, China; (R.K.); (C.L.)
- School of Ecological Construction and Environmental Protection, Jiangxi Environmental Engineering Vocational College, Ganzhou 341002, China
| | - Cheng Lena
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing 100124, China; (R.K.); (C.L.)
| | - Zhan Wang
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing 100124, China; (R.K.); (C.L.)
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Li N, Lu X, He M, Duan X, Yan B, Chen G, Wang S. Catalytic membrane-based oxidation-filtration systems for organic wastewater purification: A review. JOURNAL OF HAZARDOUS MATERIALS 2021; 414:125478. [PMID: 33652213 DOI: 10.1016/j.jhazmat.2021.125478] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/31/2021] [Accepted: 02/19/2021] [Indexed: 06/12/2023]
Abstract
Catalytic membranes can simultaneously realize physical separation and chemical oxidation in one integrated system, which is the frontier technology for effective removal of organic containments in wastewater treatment. The catalytic membrane coupled with advanced oxidation processes (AOPs) not only significantly enhances the pollutant removal efficiency but also inhibits the fouling of the membrane via self-cleaning. In this review, the preparation approaches of catalytic membranes including blending, surface coating, and bottom-up synthesis are comprehensively summarized. The different integrated catalytic membrane systems coupled with photocatalysis, Fenton oxidation, persulfate activations, ozonation and electrocatalytic oxidation are discussed in terms of mechanisms and performance. Besides, the principles, influencing factors, advantages and issues of the different catalytic membrane/oxidation systems are outlined comparatively. Finally, the future challenges, and research directions are suggested, which is conducive to the design and development of catalytic membrane-oxidation systems for practical remediation of organic containing wastewater.
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Affiliation(s)
- Ning Li
- School of Environmental Science and Engineering/Tianjin Engineering Research Center of Bio Gas/Oil Technology, Tianjin University, Tianjin 300072, China
| | - Xukai Lu
- School of Environmental Science and Engineering/Tianjin Engineering Research Center of Bio Gas/Oil Technology, Tianjin University, Tianjin 300072, China
| | - Mengting He
- School of Environmental Science and Engineering/Tianjin Engineering Research Center of Bio Gas/Oil Technology, Tianjin University, Tianjin 300072, China
| | - Xiaoguang Duan
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Beibei Yan
- School of Environmental Science and Engineering/Tianjin Engineering Research Center of Bio Gas/Oil Technology, Tianjin University, Tianjin 300072, China
| | - Guanyi Chen
- School of Environmental Science and Engineering/Tianjin Engineering Research Center of Bio Gas/Oil Technology, Tianjin University, Tianjin 300072, China; Georgia Tech Shenzhen Institute, Tianjin University, Shenzhen 518071, China.
| | - Shaobin Wang
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia.
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Wan J, Huang J, Yu H, Liu L, Shi Y, Liu C. Fabrication of self-assembled 0D-2D Bi 2MoO 6-g-C 3N 4 photocatalytic composite membrane based on PDA intermediate coating with visible light self-cleaning performance. J Colloid Interface Sci 2021; 601:229-241. [PMID: 34082228 DOI: 10.1016/j.jcis.2021.05.038] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 05/06/2021] [Accepted: 05/07/2021] [Indexed: 11/29/2022]
Abstract
A Self-cleaning surface can efficaciously solve the problem of irreversible contamination buildup on filtration membranes. Photocatalytic membranes were fabricated via vacuum assisted layer-by-layer (LBL) self-assembly of 0D-2D Bi2MoO6-g-C3N4 on a PDA coated thin-film composite PVDF substrate by Schiff base reaction. The rejection rate of the simulated polysaccharide was more than 90%, and that of the simulated protein was more than 80%. The combination of the membrane and the photocatalyst promoted the degradation of tetracycline hydrochloride by the composite membrane to 67.85% when original membranes had minor effect. Under visible light, reversible radiation pollutants (Rr) gradually replaced irreversible pollutants (Rir) as the main pollutants. The flux recovery ratio (FRR) of 0D-2D Bi2MoO6-g-C3N4/PVDF membrane was 85% after being irradiated with visible light for 30 min. The flux recovery rate of contaminated photocatalytic membrane remained 75%, and the rejection was maintained in a stable range after four cycles of the cleaning operation under visible light. The results indicated that the excellent photocatalytic performance of 0D-2D Bi2MoO6-g-C3N4 photocatalysis material and the increase of multi-dimensional functional layer morphology on pollutant contact area improved the mechanical stability, interception performance and self-cleaning performance of the composite membrane. This work not only builds a new type of composite coating membranes, but also help us to further understand the relationship between the dimensions of photocatalytic materials and the improvement of photocatalytic membrane performance.
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Affiliation(s)
- Jia Wan
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan 410082, PR China
| | - Jinhui Huang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan 410082, PR China.
| | - Hanbo Yu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan 410082, PR China
| | - Lishuo Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan 410082, PR China
| | - Yahui Shi
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan 450001, PR China; College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China
| | - Chunhua Liu
- School of Chemistry and Food Engineering, Changsha University of Science and Technology , Changsha 410004, Hunan, PR China
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Zhang H, Wan Y, Luo J, Darling SB. Drawing on Membrane Photocatalysis for Fouling Mitigation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:14844-14865. [PMID: 33769034 DOI: 10.1021/acsami.1c01131] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Photocatalysis is an effective and environmentally friendly approach for degrading organic pollutants, particularly in scenarios where sunlight can be utilized as the energy source. Opportunities are emerging to apply materials and methods from photocatalytic pollutant degradation to address the challenge of fouling. Membrane fouling, attributed to organic foulants, is a prevalent problem for all membrane-based technologies and represents a major deleterious impact on membrane performance. Integration of tactics developed in photocatalysis more broadly to membranes reveals new strategies for membrane fouling control-an approach taken by an increasing number of researchers. This review summarizes key developments in photocatalytic materials and methods in water treatment and presents recent progress in the development of processes for photocatalytic alleviation of membrane fouling, including photocatalyst design and modification strategies aimed at enhancing photocatalytic efficiency, as well as different configurations of photocatalysis-membrane systems (PMS). Perspectives on future research and development opportunities for photocatalytic membrane fouling control are also provided.
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Affiliation(s)
- Huiru Zhang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
- Chemical Sciences and Engineering Division and Center for Molecular Engineering, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Advanced Materials for Energy-Water Systems Energy Frontier Research Center, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Yinhua Wan
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Jianquan Luo
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Seth B Darling
- Chemical Sciences and Engineering Division and Center for Molecular Engineering, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Advanced Materials for Energy-Water Systems Energy Frontier Research Center, Argonne National Laboratory, Lemont, Illinois 60439, United States
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Fabrication of novel polyethersulfone (PES) hybrid ultrafiltration membranes with superior permeability and antifouling properties using environmentally friendly sulfonated functionalized polydopamine nanofillers. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118311] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Kolesnyk I, Kujawa J, Bubela H, Konovalova V, Burban A, Cyganiuk A, Kujawski W. Photocatalytic properties of PVDF membranes modified with g-C3N4 in the process of Rhodamines decomposition. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117231] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Popa A, Toloman D, Stan M, Stefan M, Radu T, Vlad G, Ulinici S, Baisan G, Macavei S, Barbu-Tudoran L, Pana O. Tailoring the RhB removal rate by modifying the PVDF membrane surface through ZnO particles deposition. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01795-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Pan T, Liu Y, Li Z, Fan J, Wang L, Liu J, Shou W. A Sm-doped Egeria-densa-like ZnO nanowires@PVDF nanofiber membrane for high-efficiency water clean. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 737:139818. [PMID: 32526581 DOI: 10.1016/j.scitotenv.2020.139818] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/28/2020] [Accepted: 05/28/2020] [Indexed: 06/11/2023]
Abstract
A biomimetic Egeria-densa-like hybrid composite nanofiber membrane was fabricated to degrade organic pollutants in water, with PVDF nanofibers as stems to provide support, and ZnO nanowires as leaves to provide active sites. The Sm-doped ZnO nanowires@PVDF nanofiber membranes were characterized by FE-SEM, X-ray photoelectron spectroscopy, Fourier transform infrared, X-ray diffraction, and UV-vis diffuse reflectance spectrometer. Compared with the pure ZnO nanowires@PVDF nanofiber membrane, the Sm-doped membrane showed higher photocatalytic performance. The excellent photocatalytic activity was attributed to the increased specific surface area and the decreased bandgap of ZnO nanowires after Sm doping, which inhibited the recombination rate of electrons and holes and improved the absorption of visible light. We found that the superoxide free radicals (O2-) played a critical role in photocatalytic degradation. The Sm-doped ZnO nanowires@PVDF nanofiber membrane exhibited good stability after 5 cycles of RhB degradation. We believe such Sm-doped hybrid membrane can work as an effective photocatalyst for wastewater treatment.
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Affiliation(s)
- Tiandi Pan
- State Key Laboratory of Separation Membranes and membrane Processes, School of Textile Science And Engineering, Tiangong University, Tianjin 300387, China
| | - Yong Liu
- State Key Laboratory of Separation Membranes and membrane Processes, School of Textile Science And Engineering, Tiangong University, Tianjin 300387, China.
| | - Zongjie Li
- State Key Laboratory of Separation Membranes and membrane Processes, School of Textile Science And Engineering, Tiangong University, Tianjin 300387, China
| | - Jie Fan
- State Key Laboratory of Separation Membranes and membrane Processes, School of Textile Science And Engineering, Tiangong University, Tianjin 300387, China
| | - Liang Wang
- State Key Laboratory of Separation Membranes and membrane Processes, School of Textile Science And Engineering, Tiangong University, Tianjin 300387, China
| | - Jian Liu
- School of Textiles, 495 Fenghua Road, Zhejiang Fashion Institute of Technology, Ningbo, Zhejiang Province 315000, China
| | - Wan Shou
- Computer Science and Artificial Intelligence Lab (CSAIL), Electrical Engineering and Computer Science Department, Massachusetts Institute of Technology Cambridge, MA 02139, USA
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Shi Y, Wan D, Huang J, Liu Y, Li J. Stable LBL self-assembly coating porous membrane with 3D heterostructure for enhanced water treatment under visible light irradiation. CHEMOSPHERE 2020; 252:126581. [PMID: 32222517 DOI: 10.1016/j.chemosphere.2020.126581] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 03/19/2020] [Accepted: 03/20/2020] [Indexed: 06/10/2023]
Abstract
The development of visible light-responsive photocatalytic membranes (vis-PMs) has opened a promising direction in water purification field. Herein, supramolecular aggregates from cyanuric acid (C), melamine (M), and urea (U) in dimethyl sulfoxide (DMSO) were used to prepare the porous carbon nitride nanosheet (MCU-C3N4) with excellent photocatalytic performance. A sort of 3D heterostructure PMs consisting of MCU-C3N4 and carbon nanotube (CNTs) interposed into graphene oxide (GO) on the PVDF membrane was firstly fabricated by the layer-by-layer (LbL) assembly method, in which CNTs/MCU-C3N4/GO material was immobilized on the polyelectrolytes (PE) modified PVDF based on their electrostatic attractions. Such PMs with abundant nano-channels had excellent mechanical strength, satisfactory water permeability (14.35 L m-2 h-1 bar-1) and synergetic removal efficiency of rhodamine B (RhB, 98.31%) in long -term operation, relative to the pristine GO membrane and MCU-C3N4/GO membrane fabricated by the same method. In addition, such PMs also exhibited the satisfactory tetracycline hydrochloride (TC) removal rate (84.81%) under visible light irradiation. Construction and performance of such carbon-based PMs might provide guidance for development of vis-PMs in terms of bonding strength, multidimensional morphology and water purification application.
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Affiliation(s)
- Yahui Shi
- School of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China; Henan Combined Pollution Control Research Academician Workstation, Zhengzhou, Henan, 450001, China
| | - Dongjin Wan
- School of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China; Henan Combined Pollution Control Research Academician Workstation, Zhengzhou, Henan, 450001, China.
| | - Jinhui Huang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China.
| | - Yongde Liu
- School of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China; Henan Combined Pollution Control Research Academician Workstation, Zhengzhou, Henan, 450001, China
| | - Jinsong Li
- School of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China
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Self-cleaning, antimicrobial, and antifouling membrane via integrating mesoporous graphitic carbon nitride into polyvinylidene fluoride. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118146] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Guo J, Ji Z. Superhydrophilic ZSM-5 zeolite-coated membrane for enhancing water coalescence in water-in-oil emulsions. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124727] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Chen C, Xie M, Kong L, Lu W, Feng Z, Zhan J. Mn 3O 4 nanodots loaded g-C 3N 4 nanosheets for catalytic membrane degradation of organic contaminants. JOURNAL OF HAZARDOUS MATERIALS 2020; 390:122146. [PMID: 32007861 DOI: 10.1016/j.jhazmat.2020.122146] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 01/08/2020] [Accepted: 01/19/2020] [Indexed: 06/10/2023]
Abstract
Peroxymonosulfate (PMS) activation by heterogeneous catalysts has been widely investigated to remove organic contaminants. Nevertheless, the technology is restricted to the bench-scale batch system. For practical applications, a supported catalyst design based on a reactor configuration with catalyst recovery is the need for future development. In this study, Mn3O4 nanodots-g-C3N4 nanosheets (Mn3O4/CNNS) composites were prepared via a facile hydrothermal method. The micro-structures and compositions of composites were investigated by a series of characterization methods. It was found that the Mn3O4 nanodots (5-10 nm) were distributed uniformly over the CNNS. When the added amount of CNNS was 150 mg during the synthesis process, a composite named as Mn3O4/CNNS-150 was obtained, which exhibited the best performance on PMS activation for 4-chlorophenol (4-CP) removal. The Mn3O4/CNNS-150@PTFE membrane was synthesized by facile vacuum filtration. The catalytic membrane was applied in filtration experiments for the degradation of different contaminants. The stability tests revealed excellent stability of the catalytic membrane. The redox circles of Mn(IV)/Mn(III)/Mn(II) on the Mn3O4 surface were the main source of activated PMS and a possible activation mechanism in the reaction system was provided. This study is of great significance for the development of novel catalytic membranes with PMS activation.
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Affiliation(s)
- Congcong Chen
- Key Laboratory for Colloid & Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, Jinan, 250100, PR China
| | - Meng Xie
- Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Analysis and Test Centre, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
| | - Lingshuai Kong
- Key Laboratory for Colloid & Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, Jinan, 250100, PR China
| | - Wenhui Lu
- Key Laboratory for Colloid & Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, Jinan, 250100, PR China
| | - Zhenyu Feng
- Key Laboratory for Colloid & Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, Jinan, 250100, PR China
| | - Jinhua Zhan
- Key Laboratory for Colloid & Interface Chemistry of Education Ministry, Department of Chemistry, Shandong University, Jinan, 250100, PR China.
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Zhao G, Zou J, Chen X, Zhang T, Yu J, Zhou S, Li C, Jiao F. Integration of Microfiltration and Visible-Light-Driven Photocatalysis on a ZnWO4 Nanoparticle/Nickel–Aluminum-Layered Double Hydroxide Membrane for Enhanced Water Purification. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b06831] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Guoqing Zhao
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
| | - Jiao Zou
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
| | - Xiaoqing Chen
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
| | - Taiheng Zhang
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
| | - Jingang Yu
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
| | - Shu Zhou
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
| | - Caifeng Li
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
| | - Feipeng Jiao
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
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Chen Y, Xie A, Cui J, Lang J, Li C, Yan Y, Dai J. Flower-like visible light driven antifouling membrane with robust regeneration for high efficient oil/water separation. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2019.10.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Shi Y, Huang J, Zeng G, Cheng W, Hu J, Shi L, Yi K. Evaluation of self-cleaning performance of the modified g-C 3N 4 and GO based PVDF membrane toward oil-in-water separation under visible-light. CHEMOSPHERE 2019; 230:40-50. [PMID: 31102870 DOI: 10.1016/j.chemosphere.2019.05.061] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/01/2019] [Accepted: 05/07/2019] [Indexed: 06/09/2023]
Abstract
Photocatalytic membranes (PMs), coupling of membrane filtration and photocatalysis, have exhibited the potential for application in the wastewater treatment. In this study, we firstly adopted the supramolecular aggregates of melamine (M), cyanuric acid (C), and urea (U) in specific dimethyl sulfoxide (DMSO) as precursors to prepare carbon nitride MCU-C3N4 with high photocatalytic performance, and a kind of novel-designed photocatalytic membrane was prepared via filtrating the mixture of graphene oxide (GO) nanosheets and MCU-C3N4 on PVDF membrane supports, and then crosslinked using glutaraldehyde (GA) to construct a steady coating on the GO/MCU-C3N4/PVDF membrane. GO/MCU-C3N4/PVDF composite membrane exhibited higher permeation flux than that of GO/PVDF membrane and exhibited excellent separation performance for oil-in-water emulsion. A visible light-driven self-cleaning four-stage filtration by a self-built dead-end filtration system was carried out to evaluate membrane antifouling property, and GO/MCU-C3N4/PVDF membrane (M2) possessed higher flux recovery ratio (FRR) (∼92.36%) and lower irreversible fouling resistance (Rir) ratio (∼8%) under 30min visible-light irradiation, maintaining relatively higher FRR (>72%) during 4 cycling of four-stage filtrating experiments. GO/MCU-C3N4/PVDF PMs are equipped with high permeation flux, separation performance, anti-fouling property and stability, indicating potential application in water treatment.
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Affiliation(s)
- Yahui Shi
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Jinhui Huang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China.
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China.
| | - Wenjian Cheng
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Jianglin Hu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Lixiu Shi
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
| | - Kaixin Yi
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan, 410082, China
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Shi Y, Huang J, Zeng G, Cheng W, Hu J. Photocatalytic membrane in water purification: is it stepping closer to be driven by visible light? J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.04.078] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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