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Thi HP, Bui TH, Nguyen MV, Nguyen MP, Hien Chu TT, Nguyen HT. Exploring the potential of CoMoO 4-modified graphitic carbon nitride to boost oxidation of amoxicillin micropollutants in hospital wastewater. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:219. [PMID: 38849667 DOI: 10.1007/s10653-024-01990-9] [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: 02/16/2024] [Accepted: 04/08/2024] [Indexed: 06/09/2024]
Abstract
This study investigates the removal of amoxicillin micropollutants (AM) from hospital wastewater using CoMoO4-modified graphitic carbon nitride (CMO/gCN). Consequently, CMO/gCN exhibits notable improvements in visible light absorption and electron-hole separation rates compared to unmodified gCN. Besides, CMO/gCN significantly enhances the removal efficiency of AM, attaining an impressive 96.5%, far surpassing the performance of gCN at 48.6%. Moreover, CMO/gCN showcases outstanding reusability, with AM degradation performance exceeding 70% even after undergoing six cycles of reuse. The removal mechanism of AM employing CMO/gCN involves various photoreactions of radicals (•OH, •O2-) and amoxicillin molecules under light assistance. Furthermore, CMO/gCN demonstrates a noteworthy photodegradation efficiency of AM from hospital wastewater, reaching 92.8%, with a near-complete reduction in total organic carbon levels. Detailed discussions on the practical applications of the CMO/gCN photocatalyst for removal of micropollutants from hospital wastewater are provided. These findings underline the considerable potential of CMO/gCN for effectively removing various pollutants in environmental remediation strategies.
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Affiliation(s)
- Huong Pham Thi
- Laboratory of Environmental Sciences and Climate Change, Institute for Computational Science and Artificial Intelligence, Van Lang University, Ho Chi Minh City, Vietnam
- Faculty of Environment, School of Technology, Van Lang University, Ho Chi Minh City, Vietnam
| | - Trung Hieu Bui
- VKTech Research Center, NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | - Minh Viet Nguyen
- VNU Key Laboratory of Advanced Material for Green Growth, Faculty of Chemistry, VNU University of Science, 334 Nguyen Trai Street, Hanoi, Thanh Xuan, Vietnam.
| | - Minh Phuong Nguyen
- Faculty of Chemistry, VNU University of Science, 334 Nguyen Trai Street, Hanoi, Thanh Xuan, Vietnam
| | - Thi Thu Hien Chu
- Department of Chemistry, Faculty of Building Materials, Hanoi University of Civil Engineering (HUCE), Giai Phong, Hai Ba Trung, Hanoi, 10000, Vietnam
| | - Hai Trieu Nguyen
- Faculty of Chemistry, VNU University of Science, 334 Nguyen Trai Street, Hanoi, Thanh Xuan, Vietnam
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John KI, Ho G, Li D. Recent progresses in synthesis and modification of g-C 3N 4 for improving visible-light-driven photocatalytic degradation of antibiotics. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2024; 89:3047-3078. [PMID: 38877630 DOI: 10.2166/wst.2024.166] [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: 03/07/2024] [Accepted: 05/11/2024] [Indexed: 06/16/2024]
Abstract
Graphitic carbon nitride (g-C3N4) is a widely studied visible-light-active photocatalyst for low cost, non-toxicity, and facile synthesis. Nonetheless, its photocatalytic efficiency is below par, due to fast recombination of charge carriers, low surface area, and insufficient visible light absorption. Thus, the research on the modification of g-C3N4 targeting at enhanced photocatalytic performance has attracted extensive interest. A considerable amount of review articles have been published on the modification of g-C3N4 for applications. However, limited effort has been specially contributed to providing an overview and comparison on available modification strategies for improved photocatalytic activity of g-C3N4-based catalysts in antibiotics removal. There has been no attempt on the comparison of photocatalytic performances in antibiotics removal between modified g-C3N4 and other known catalysts. To address these, our study reviewed strategies that have been reported to modify g-C3N4, including metal/non-metal doping, defect tuning, structural engineering, heterostructure formation, etc. as well as compared their performances for antibiotics removal. The heterostructure formation was the most widely studied and promising route to modify g-C3N4 with superior activity. As compared to other known photocatalysts, the heterojunction g-C3N4 showed competitive performances in degradation of selected antibiotics. Related mechanisms were discussed, and finally, we revealed current challenges in practical application.
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Affiliation(s)
- Kingsley Igenepo John
- College of Science, Technology, Engineering & Mathematics, Murdoch University, Murdoch, WA 6150, Australia
| | - Goen Ho
- College of Science, Technology, Engineering & Mathematics, Murdoch University, Murdoch, WA 6150, Australia
| | - Dan Li
- College of Science, Technology, Engineering & Mathematics, Murdoch University, Murdoch, WA 6150, Australia E-mail:
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Nagaraja K, Arunpandian M, Tae Hwan OH. Enhanced photocatalytic degradation of organic pollutants by green-synthesized gold nanoparticles using polysaccharide for environmental remediation. Int J Biol Macromol 2024; 269:131866. [PMID: 38670190 DOI: 10.1016/j.ijbiomac.2024.131866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/19/2024] [Accepted: 04/23/2024] [Indexed: 04/28/2024]
Abstract
The recent rise in textile dye wastewater discharge into the environment has detrimental effects on living organisms and human health. The present study reports a facile approach to green-synthesized AuNPs employing sesbania gum for catalytic and photocatalytic degradation of organic pollutants. The obtained AuNPs were characterized by various techniques such as UV-vis, FT-IR, SEM, TEM, AFM, zeta potential, LC-MS, and XPS. The XRD patterns revealed a highly crystalline and face-centered cubic structure. XPS and EDX analysis defined the chemical composition and product purity of SBG-AuNPs. Photocatalytic degradation of hazardous dyes congo red and safranin-O using SBG-AuNPs showed a rapid decomposition rate with 94.69 % under visible light irradiation. The effect of pH, dye concentration, and catalyst dose on photodegradation and recyclability was also studied. The kinetic plots were used to calculate the rate constant, showing a pseudo-first-order reaction. Scavenger trap experiments confirmed the role of h+ and superoxide(.O2-) as active species, and LCMS analysis was used to identify the degradation intermediates. The catalytic reduction of SBG-AuNPs was studied for brilliant green (BG) and methylene blue (MB) in the presence of NaBH4, resulting the degradation efficiency of 90.37 % and 84.52 %, respectively. This study presents an innovative approach for designing highly efficient photocatalysts for environmental remediation and wastewater treatment from textile dyes.
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Affiliation(s)
- Kasula Nagaraja
- School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea.
| | - Muthraj Arunpandian
- School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - O H Tae Hwan
- School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk 38541, Republic of Korea.
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Abbas M, Hussain Shah N, Ilyas M, Mudasar M, Raza A, Ashfaq Ahmad M, Cui Y, Wang Y. WO 3-x nanorods/rGO/AgBiS 2 Z-scheme heterojunction with comprehensive spectrum response and enhanced Fenton and photocatalytic activities. J Colloid Interface Sci 2024; 662:250-262. [PMID: 38350348 DOI: 10.1016/j.jcis.2024.02.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 01/31/2024] [Accepted: 02/03/2024] [Indexed: 02/15/2024]
Abstract
Tetracycline (TC) antibiotics and dyes are the prevalent water contaminants, and their removal from the water through photocatalysis is a plausible approach. However, most semiconductors in their pristine form need to be improved to be exploited in photocatalysis owing to poor photoresponse, intense carrier recombination, and inertness without irradiation. Herein, we demonstrate the modification of defective WO3-x by rGO and AgBiS2 in the form of WO3-x/rGO/AgBiS2 (R2). It exploits the superior conductivity and synergism of rGO to inhibit carrier recombination; thereby, Z-scheme heterojunction with AgBiS2 provides high redox potential. Defects in WO3-x enable electron (e-) storage in R2, which decomposes H2O2 to generate ROS without irradiation. Owing to these essences and broad-spectrum response, it removed 93.72, 82.77, and 84.82% of TC during photo-Fenton (PFR), night-Fenton (NFR), and photocatalytic (PCR) reactions, respectively. Its removal rates reached 94.74, 81.54, and 87.50% against rhodamine B (RhB) during PFR, NFR, and PCR, respectively. It is superior to memory catalysis (MC) and conventional Fenton reactions (CFR) because it can perform without and with irradiation across a broader pH range. So, this work is conducive to designing WO3-x-based catalysts to combat environmental and energy crises.
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Affiliation(s)
- Muhammad Abbas
- Beijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
| | - Navid Hussain Shah
- Beijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
| | - Mubashar Ilyas
- Key Laboratory of Clusters Science of Ministry of Education, School of Chemistry Beijing Institute of Technology Beijing 100081, China
| | - Murtaza Mudasar
- School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Ali Raza
- Department of Mechanical Engineering, University of Engineering and Technology Lahore, Pakistan
| | - M Ashfaq Ahmad
- Department of Physics, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan.
| | - Yanyan Cui
- Beijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China.
| | - Yaling Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China, Beijing 100190, China.
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Yea Y, Elanchezhiyan SS, Saravanakumar R, Jagan G, Choi JU, Saravanakumar K, Park CM. All-solid-state Z-scheme ZnFe-LDH/rGO/g-C 3N 5 heterojunction for enhanced sonophotocatalytic degradation of ciprofloxacin: Performance and mechanistic insights. ENVIRONMENTAL RESEARCH 2024; 247:118209. [PMID: 38237757 DOI: 10.1016/j.envres.2024.118209] [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: 10/11/2023] [Revised: 01/08/2024] [Accepted: 01/12/2024] [Indexed: 01/30/2024]
Abstract
The fabrication of all-solid-state Z-scheme sonophotocatalysts is vital for improving the transfer rate of photogenerated electrons to remove antibiotics present in wastewater. Herein, a novel indirect Z-scheme ZnFe-layered double hydroxide (LDH)/reduced graphene oxide (rGO)/graphitic carbon nitride (g-C3N5) heterojunction was synthesized using a simple strategy. The ZnFe-LDH/rGO/g-C3N5 (ZF@rGCN) ternary composites were systematically characterized using different techniques. Results revealed that the 15%ZF@rGCN catalyst achieved a ciprofloxacin (CIP) degradation efficiency of 95% via the synergistic effect of sonocatalysis and photocatalysis. The improved sonophotocatalytic performance of the ZF@rGCN heterojunction was attributed to an increase in the number of active sites, a Z-scheme charge-transfer channel in ZF@rGCN, and an extended visible light response range. The introduction of rGO further enhanced the charge-transfer rate and preserved the reductive and oxidative sites of the ZF@rGCN system, thereby affording additional reactive species to participate in CIP removal. In addition, owing to its unique properties, rGO possibly increased the absorption of incident light and served as an electronic bridge in the as-formed ZF@rGCN catalyst. Finally, the possible CIP degradation pathways and the sonophotocatalytic Z-scheme charge-migration route of ZF@rGCN were proposed. This study presents a new approach for fabricating highly efficient Z-scheme sonophotocatalysts for environmental remediation.
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Affiliation(s)
- Yeonji Yea
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea.
| | - S Sd Elanchezhiyan
- Sethu Institute of Technology, Department of Chemistry, Kariapatti, Virudhunagar District, Tamil Nadu, India.
| | - R Saravanakumar
- Sethu Institute of Technology, Department of Chemistry, Kariapatti, Virudhunagar District, Tamil Nadu, India.
| | - Govindan Jagan
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea.
| | - Jong Uk Choi
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea.
| | - Karunamoorthy Saravanakumar
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea.
| | - Chang Min Park
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea.
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Ma M, Yan X, Mao Y, Kang H, Yan Q, Zhou J, Song Z, Zhu H, Cui L, Li Y. Constructing a Titanium Silicon Molecular Sieve-Based Z-Scheme Heterojunction with Enhanced Photocatalytic Activity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:6198-6211. [PMID: 38468362 DOI: 10.1021/acs.langmuir.3c03595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
Titanium silicon molecular sieve (TS-1) is an oxidation catalyst that possesses a long lifetime of charge transfer excited state, high Ti utilization efficiency, large specific surface area, and good adsorption property; therefore, TS-1 acts as a Ti-based photocatalyst candidate. In this work, TS-1 coupled Bi2MoO6 (TS-1/BMO) photocatalysts were fabricated via a facile hydrothermal route. Interestingly, the optimized TS-1/BMO-1.0 catalyst exhibited a decent photodegradation property toward tetracycline hydrochloride (85.49% in 120 min) under the irradiation of full spectrum light, which were 4.38 and 1.76 times compared to TS-1 and BMO, respectively. The enhanced photodegradation property of the TS-1/BMO-1.0 catalyst could be attributed to the reinforced light-harvesting capacity of the photocatalyst, high charge mobility, and suitable band structure for tetracycline hydrochloride degradation. In addition, the mechanism of photocatalytic degradation of tetracycline hydrochloride by the TS-1/BMO-1.0 catalyst was reasonably proposed based on the band structure, trapping, and ESR tests. This research provided feasible ideas for the design and construction of high-efficiency photocatalysts for contaminant degradation.
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Affiliation(s)
- Mengxia Ma
- Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan 467036, P. R. China
- School of Civil and Surveying Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, P. R. China
| | - Xu Yan
- Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan 467036, P. R. China
- Henan International Joint Laboratory of Green Low Carbon-Water Treatment Technology and Water Resources Utilization, Henan University of Urban Construction, Pingdingshan 467036, P. R. China
| | - Yanli Mao
- Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan 467036, P. R. China
- Henan International Joint Laboratory of Green Low Carbon-Water Treatment Technology and Water Resources Utilization, Henan University of Urban Construction, Pingdingshan 467036, P. R. China
| | - Haiyan Kang
- Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan 467036, P. R. China
- Henan International Joint Laboratory of Green Low Carbon-Water Treatment Technology and Water Resources Utilization, Henan University of Urban Construction, Pingdingshan 467036, P. R. China
| | - Qun Yan
- School of Civil and Surveying Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, P. R. China
| | - Jieqiang Zhou
- Pingdingshan Huaxing Flotation Engineering Technology Service Co., Ltd., Pingdingshan 467000, P. R. China
| | - Zhongxian Song
- Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan 467036, P. R. China
- Henan International Joint Laboratory of Green Low Carbon-Water Treatment Technology and Water Resources Utilization, Henan University of Urban Construction, Pingdingshan 467036, P. R. China
| | - Han Zhu
- Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan 467036, P. R. China
- Henan International Joint Laboratory of Green Low Carbon-Water Treatment Technology and Water Resources Utilization, Henan University of Urban Construction, Pingdingshan 467036, P. R. China
| | - Leqi Cui
- Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan 467036, P. R. China
- Henan International Joint Laboratory of Green Low Carbon-Water Treatment Technology and Water Resources Utilization, Henan University of Urban Construction, Pingdingshan 467036, P. R. China
| | - Yanna Li
- Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, Pingdingshan 467036, P. R. China
- Henan International Joint Laboratory of Green Low Carbon-Water Treatment Technology and Water Resources Utilization, Henan University of Urban Construction, Pingdingshan 467036, P. R. China
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