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Li A, Zhang Z, Feng C, Zhang T, Liu F, Na H, Zhu J. Fabrication of a Nanosized g-C 3N 4-Loaded Cellulose Microfiber Bundle to Induce Highly Efficient Water Treatment via Photodegradation . LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:16657-16667. [PMID: 37938827 DOI: 10.1021/acs.langmuir.3c02709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
Graphite carbon nitride (g-C3N4) with a suitable structure and strong amine activity is designed and prepared to serve as a hydrogen bond donor for the microfibrilization of corncob cellulose to form a cellulose microfiber (CMF) bundle. Simultaneously, well-dispersed nanosized g-C3N4 is loaded into the bundle to form a photocatalyst for efficient photodegradation of rhodamine B (Rh B) in water. Under the optimal preparation conditions at 165 °C, 10 min, and 0.08 mol/L H2SO4, the yield of g-C3N4-functionalized cellulose microfibers (CMF-g-C3N4) reaches to the highest over 70%. The catalytic rate of CMF-g-C3N4 is 3.3 times larger than that of pure g-C3N4. The degradation rate of Rh B is maintained at over 90% in 10 cycles of photocatalytic degradation. The obtained CMF-g-C3N4 also has good thermal stability and mechanical properties. This research suggests a particularly simple way to transform cellulose into a highly efficient photocatalyst for water treatment.
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Affiliation(s)
- Anran Li
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
| | - Zhenyu Zhang
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
| | - Chengqi Feng
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
| | - Ting Zhang
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
| | - Fei Liu
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
| | - Haining Na
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
| | - Jin Zhu
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
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Olufemi Oluwole A, Khoza P, Olatunji OS. Synthesis and characterization of g‐C
3
N
4
doped with activated carbon (AC) prepared from grape leaf litters for the photocatalytic degradation of enrofloxacin in aqueous systems. ChemistrySelect 2022. [DOI: 10.1002/slct.202203601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Adewumi Olufemi Oluwole
- School of Chemistry and Physics University of KwaZulu-Natal Westville Campus Durban 4000 South Africa
| | - Phindile Khoza
- School of Chemistry and Physics University of KwaZulu-Natal Westville Campus Durban 4000 South Africa
| | - Olatunde Stephen Olatunji
- School of Chemistry and Physics University of KwaZulu-Natal Westville Campus Durban 4000 South Africa
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The Synergistic Effect of Adsorption-Photocatalysis for Removal of Organic Pollutants on Mesoporous Cu 2V 2O 7/Cu 3V 2O 8/g-C 3N 4 Heterojunction. Int J Mol Sci 2022; 23:ijms232214264. [PMID: 36430740 PMCID: PMC9693244 DOI: 10.3390/ijms232214264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 11/13/2022] [Accepted: 11/14/2022] [Indexed: 11/19/2022] Open
Abstract
Cu2V2O7/Cu3V2O8/g-C3N4 heterojunctions (CVCs) were prepared successfully by the reheating synthesis method. The thermal etching process increased the specific surface area. The formation of heterojunctions enhanced the visible light absorption and improved the separation efficiency of photoinduced charge carriers. Therefore, CVCs exhibited superior adsorption capacity and photocatalytic performance in comparison with pristine g-C3N4 (CN). CVC-2 (containing 2 wt% of Cu2V2O7/Cu3V2O8) possessed the best synergistic removal efficiency for removal of dyes and antibiotics, in which 96.2% of methylene blue (MB), 97.3% of rhodamine B (RhB), 83.0% of ciprofloxacin (CIP), 86.0% of tetracycline (TC) and 80.5% of oxytetracycline (OTC) were eliminated by the adsorption and photocatalysis synergistic effect under visible light irradiation. The pseudo first order rate constants of MB and RhB photocatalytic degradation on CVC-2 were 3 times and 10 times that of pristine CN. For photocatalytic degradation of CIP, TC and OTC, it was 3.6, 1.8 and 6.1 times that of CN. DRS, XPS VB and ESR results suggested that CVCs had the characteristics of a Z-scheme photocatalytic system. This study provides a reliable reference for the treatment of real wastewater by the adsorption and photocatalysis synergistic process.
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Ran X, Wang L, Xiao B, Lei L, Zhu J, Liu Z, Xi X, Feng G, Li R, Feng J. Effective Removal of Methylene Blue on EuVO 4/g-C 3N 4 Mesoporous Nanosheets via Coupling Adsorption and Photocatalysis. Int J Mol Sci 2022; 23:ijms231710003. [PMID: 36077402 PMCID: PMC9456035 DOI: 10.3390/ijms231710003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/20/2022] [Accepted: 08/22/2022] [Indexed: 11/28/2022] Open
Abstract
In this study, we first manufactured ultrathin g-C3N4 (CN) nanosheets by thermal etching and ultrasonic techniques. Then, EuVO4 (EV) nanoparticles were loaded onto CN nanosheets to form EuVO4/g-C3N4 heterojunctions (EVCs). The ultrathin and porous structure of the EVCs increased the specific surface area and reaction active sites. The formation of the heterostructure extended visible light absorption and accelerated the separation of charge carriers. These two factors were advantageous to promote the synergistic effect of adsorption and photocatalysis, and ultimately enhanced the adsorption capability and photocatalytic removal efficiency of methylene blue (MB). EVC-2 (2 wt% of EV) exhibited the highest adsorption and photocatalytic performance. Almost 100% of MB was eliminated via the adsorption–photocatalysis synergistic process over EVC-2. The MB adsorption capability of EVC-2 was 6.2 times that of CN, and the zero-orderreaction rate constant was 5 times that of CN. The MB adsorption on EVC-2 followed the pseudo second-order kinetics model and the adsorption isotherm data complied with the Langmuir isotherm model. The photocatalytic degradation data of MB on EVC-2 obeyed the zero-order kinetics equation in 0–10 min and abided by the first-order kinetics equation for10–30 min. This study provided a promising EVC heterojunctions with superior synergetic effect of adsorption and photocatalysis for the potential application in wastewater treatment.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Jian Feng
- Correspondence: ; Tel.: +86-851-88174017
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5
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Recent advances on dual-functional photocatalytic systems for combined removal of hazardous water pollutants and energy generation. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04677-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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6
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Ding H, Liu Z, Zhang Q, He X, Feng Q, Wang D, Ma D. Biomass porous carbon as the active site to enhance photodegradation of oxytetracycline on mesoporous g-C 3N 4. RSC Adv 2022; 12:1840-1849. [PMID: 35425159 PMCID: PMC8979088 DOI: 10.1039/d1ra08615d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 12/30/2021] [Indexed: 11/21/2022] Open
Abstract
Graphitic carbon nitride (g-C3N4) is widely used in photocatalytic adsorption and degradation of pollutants, but there are still some problems such as low adsorption performance and high electron-hole recombination efficiency. Herein, we propose a new molten salt assisted thermal polycondensation strategy to synthesize biomass porous carbon (BPC) loaded on g-C3N4 composites (designated as BPC/g-C3N4) with a hollow tubular structure, which had a high surface area and low electron-hole recombination rate. The study shows that the morphology of g-C3N4 changes dramatically from massive to hollow tubular by molten salt assisted thermal polycondensation, which provides a base for the loading of BPC, to construct a highly effective composite photocatalyst. BPC loaded on g-C3N4 could be used as the active site to enhance Oxytetracycline (OTC) removal efficiency by adsorption and with higher electron-hole separation efficiency. As a result, the BPC(5%)/g-C3N4 sample presented the highest photocatalytic degradation efficiency (84%) for OTC degradation under visible light irradiation. The adsorption capacity and photocatalytic reaction rate were 3.67 and 5.63 times higher than that of the g-C3N4, respectively. This work provided a new insight for the design of novel composite photocatalysts with high adsorption and photocatalytic performance for the removal of antibiotic pollutants from wastewater.
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Affiliation(s)
- Hekun Ding
- School of Resources, Environment and Materials, Guangxi University Nanning 530004 Guangxi China
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University Nanning 530004 Guangxi China
| | - Zheng Liu
- School of Resources, Environment and Materials, Guangxi University Nanning 530004 Guangxi China
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University Nanning 530004 Guangxi China
| | - Qiongyue Zhang
- School of Resources, Environment and Materials, Guangxi University Nanning 530004 Guangxi China
| | - Xiao He
- School of Resources, Environment and Materials, Guangxi University Nanning 530004 Guangxi China
| | - Qingge Feng
- School of Resources, Environment and Materials, Guangxi University Nanning 530004 Guangxi China
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University Nanning 530004 Guangxi China
| | - Dongbo Wang
- School of Resources, Environment and Materials, Guangxi University Nanning 530004 Guangxi China
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University Nanning 530004 Guangxi China
| | - Dachao Ma
- School of Resources, Environment and Materials, Guangxi University Nanning 530004 Guangxi China
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University Nanning 530004 Guangxi China
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Kim SH, Park SJ. Interfacial interaction of graphitic carbon nitride/nanodiamond nanocomposites toward synergistic enhancement of photocatalytic degradation of organic contaminants. J Colloid Interface Sci 2021; 608:2257-2265. [PMID: 34750005 DOI: 10.1016/j.jcis.2021.10.116] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 10/18/2021] [Accepted: 10/19/2021] [Indexed: 11/16/2022]
Abstract
Graphitic carbon nitride (g-C3N4) has been widely used in various photocatalyst applications. However, compared with conventional metal-based photocatalysts, it exhibits low photocatalytic activity because of the low mobility of its charge carriers. In this study, g-C3N4/nanodiamond (ND) nanocomposites were fabricated via a facile single-step heating strategy. Under visible-light irradiation, the optimal g-C3N4/ND nanocomposites with 1.0 wt% ND content exhibited an RhB degradation rate more than two times greater than that of the g-C3N4. In addition, reutilization experiments showed that the g-C3N4/ND nanocomposites exhibit good stability and reusability. This remarkable enhancement of the photocatalytic activity was attributed to the interfacial effect between g-C3N4 and ND, which reduces energy-wasteful electron-hole recombination and promotes charge-separation efficiency. Such an approach could accelerate the development of composites for photocatalyst applications and provide more rational guidance and fundamental understanding toward realizing the theoretical limits of interfaces.
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Affiliation(s)
- Seong-Hwang Kim
- Department of Chemistry, Inha University, 100 Inharo, Incheon 22212, South Korea
| | - Soo-Jin Park
- Department of Chemistry, Inha University, 100 Inharo, Incheon 22212, South Korea.
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Wu J, Yan X, Li L, Gu J, Zhang T, Tian L, Su X, Lin Z. High-efficiency adsorption of Cr(VI) and RhB by hierarchical porous carbon prepared from coal gangue. CHEMOSPHERE 2021; 275:130008. [PMID: 33984913 DOI: 10.1016/j.chemosphere.2021.130008] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 02/13/2021] [Accepted: 02/17/2021] [Indexed: 06/12/2023]
Abstract
Coal gangue (CG) is one of the largest industrial solid wastes in the world produced during the process of coal mining. The accumulation of CG is easy to cause ion leakage, which is harmful to the environment and human body. The recovery and utilization of CG are imminent. In the process, a hierarchical porous carbon (HPC) adsorbent with excellent adsorption property for Cr(VI) and rhodamine B (RhB), was prepared from CG by a two-step method and characterized by SEM, TEM, XRD, XPS, TPD and BET. The results revealed that the specific surface area of HPC is up to 2012.7 m2 g-1, and its adsorption capacities for Cr(VI) and RhB are reached 320.51 and 3086.42 mg g-1. The adsorption mechanism of RhB was the synergetic effect of physics and chemistry. While XPS results suggested that hierarchical porous carbons (HPCs) only have a chemisorption effect on Cr(VI). This study provided an idea for the preparation of HPCs from CG to remove inorganic and organic pollutants such as heavy metal Cr(VI) and RhB in water.
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Affiliation(s)
- Jinxiong Wu
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, Guangdong, 510006, China; The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), Guangzhou, Guangdong, 510006, China; Yili Normal University. Yining, Xinjiang, 835000, China; Sino-Singapore International Joint Research Institute (SSIJRI), Guangzhou, 510000, China
| | - Xiuling Yan
- Yili Normal University. Yining, Xinjiang, 835000, China
| | - Li Li
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, Guangdong, 510006, China; The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), Guangzhou, Guangdong, 510006, China
| | - Jiahua Gu
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, Guangdong, 510006, China; The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), Guangzhou, Guangdong, 510006, China
| | - Ting Zhang
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, Guangdong, 510006, China; The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), Guangzhou, Guangdong, 510006, China
| | - Lanlan Tian
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, Guangdong, 510006, China; The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), Guangzhou, Guangdong, 510006, China.
| | - Xintai Su
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, Guangdong, 510006, China; The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), Guangzhou, Guangdong, 510006, China.
| | - Zhang Lin
- School of Environment and Energy, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, Guangdong, 510006, China; The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), Guangzhou, Guangdong, 510006, China
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Chen S, Xia Y, Zhang B, Chen H, Chen G, Tang S. Disassembly of lignocellulose into cellulose, hemicellulose, and lignin for preparation of porous carbon materials with enhanced performances. JOURNAL OF HAZARDOUS MATERIALS 2021; 408:124956. [PMID: 33421852 DOI: 10.1016/j.jhazmat.2020.124956] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 12/21/2020] [Accepted: 12/22/2020] [Indexed: 06/12/2023]
Abstract
Lignocellulose is the primary component of many biomasses, including corn straw. Herein, lignocellulose in corn straw was disassembled into the individual polymers, cellulose, hemicellulose, and lignin via a mild and facile method. Subsequently, three porous carbon materials were prepared by carbonization and chemical activation of cellulose (PCCC), hemicellulose (PCHC), and lignin (PCLC). The three materials showed higher specific surface areas (2565.7, 2996.1, and 2590.3 m2 g-1) and higher porosities (1.4261, 1.5876, and 1.2406 cm3 g-1) than that of PCCS, a porous carbon material derived from raw corn straw (1993 m2 g-1 and 1.19 cm3 g-1). Of note, PCCC and PCHC exhibited higher adsorption (1025.5 and 950.1 mg g-1) of brilliant green (BG), than PCCS (876.7 mg g-1). Besides, the BG adsorption capacities of the designed materials were higher than that of most adsorbents, and 2-2.5 times higher than that of graphite oxide (416.7 mg g-1). These study results indicate that the disassembly of lignocellulosic biomass into cellulose, hemicellulose, and lignin is an effective strategy for preparing various porous carbon materials with enhanced performances.
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Affiliation(s)
- Siji Chen
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; The Key Laboratory of Straw Biology and Utilization, the Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
| | - Yuhan Xia
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; The Key Laboratory of Straw Biology and Utilization, the Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
| | - Bolun Zhang
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; The Key Laboratory of Straw Biology and Utilization, the Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
| | - Huan Chen
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; The Key Laboratory of Straw Biology and Utilization, the Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
| | - Guang Chen
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; The Key Laboratory of Straw Biology and Utilization, the Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
| | - Shanshan Tang
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, China; The Key Laboratory of Straw Biology and Utilization, the Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
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Yang H, Zhang Y, Xia S. Study on the co-effect of maifanite-based photocatalyst and humic acid in the photodegradation of organic pollutant. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:15731-15742. [PMID: 33244697 DOI: 10.1007/s11356-020-11603-4] [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: 09/20/2020] [Accepted: 11/09/2020] [Indexed: 06/11/2023]
Abstract
In this study, the co-effect of clay mineral-based photocatalyst and humic acid on the photodegradation of dye was revealed for the first time. The clay mineral-based photocatalyst, maifanite/g-C3N4, was prepared using the co-calcining method. The physical and chemical properties of the maifanite/g-C3N4 photocatalysts with various ratios were characterized by multiple characterization methods, including SEM, XPS, BET, UV-Vis, FTIR, contact angle, and XRD. The respective degradation experiment of humic acid and RhB was performed using maifanite/g-C3N4 photocatalysts. The degradation process of mixture solution of humic acid and RhB was measured using EEM and UV-vis. The result indicates that in the presence of humic acid, low ratio of maifanite/g-C3N4 inhibits the production of by-products derived from the interaction of humic acid and the degradation of RhB. However, high ratio of maifanite/g-C3N4 is not conducive to the degradation of RhB. The ratio of 1:3 for maifanite/g-C3N4 is optimal for the photodegradation of RhB in the presence of humic acid. This article provides a new perspective to develop the co-effect of clay mineral and humic acid in the photodegradation of organic pollutant.
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Affiliation(s)
- Hang Yang
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China
| | - Yi Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, People's Republic of China.
| | - Shibin Xia
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China.
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Rare-earth oxides modified Mg-Al layered double oxides for the enhanced adsorption-photocatalytic activity. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125933] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Chen S, Zhang B, Xia Y, Chen H, Chen G, Tang S. Influence of mixed alkali on the preparation of edible fungus substrate porous carbon material and its application for the removal of dye. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125675] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Cai W, Tang J, Shi Y, Wang H, Jiang X. Improved in Situ Synthesis of Heterostructured 2D/2D BiOCl/g-C 3N 4 with Enhanced Dye Photodegradation under Visible-Light Illumination. ACS OMEGA 2019; 4:22187-22196. [PMID: 31891101 PMCID: PMC6933762 DOI: 10.1021/acsomega.9b03471] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 12/05/2019] [Indexed: 05/31/2023]
Abstract
A simple, in situ, and one-pot hydrothermal strategy was applied for the successful manufacturing of heterostructured 2D/2D BiOCl/g-C3N4 photocatalysts, and outstanding photodegradation of Rhodamine B in the condition of visible-light irradiation over the composites emerged. The investigation of various BiOCl/g-C3N4 ratios influencing the activity implied that the optimized B2C1 (mole ratio of BiOCl/g-C3N4 with 2:1) exhibited the higher degradation efficiency than that of the rest of the composites, even higher than that of pure BiOCl and pure g-C3N4, which yielded over 90% in the initial 30 min and reached almost 100% during the whole 70 min irradiation process. Kinds of characterizations demonstrated that the enhancement of photodegradation performance was caused by the intimate contact between BiOCl and g-C3N4 to form the heterostructure, which could benefit the generation of abundant visible-light photoinduced carriers and help enhance their separation and then promote their transportation to the surface.
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Affiliation(s)
- Wei Cai
- Datang Nanjing
Environmental Protection Technology Co, Ltd., Nanjing 21111, P.R. China
- School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, P.R. China
| | - Jiayu Tang
- School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, P.R. China
| | - Yunpeng Shi
- School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, P.R. China
| | - Hu Wang
- Datang Nanjing
Environmental Protection Technology Co, Ltd., Nanjing 21111, P.R. China
| | - Xiaoming Jiang
- Datang Nanjing
Environmental Protection Technology Co, Ltd., Nanjing 21111, P.R. China
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Yan Y, Yang M, Wang C, Liu E, Hu X, Fan J. Defected ZnS/bulk g–C3N4 heterojunction with enhanced photocatalytic activity for dyes oxidation and Cr (Ⅵ) reduction. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123861] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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15
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S. LP, K. S, Mamba G, V. M. 1D/2D MnWO4 nanorods anchored on g-C3N4 nanosheets for enhanced photocatalytic degradation ofloxacin under visible light irradiation. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123845] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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