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Chen CC, Liu WJ, Shaya J, Lin YY, Liu FY, Chen CW, Tsai HY, Lu CS. Fabrication and characterization of ZnGa 1.01Te 2.13/g-C 3N 4 heterojunction with enhanced photocatalytic activity. Heliyon 2023; 9:e20879. [PMID: 37876426 PMCID: PMC10590798 DOI: 10.1016/j.heliyon.2023.e20879] [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: 06/07/2023] [Revised: 10/09/2023] [Accepted: 10/09/2023] [Indexed: 10/26/2023] Open
Abstract
The extensive consumption of fossil fuels increases CO2 concentration in the atmosphere, resulting in serious global warming problems. Meanwhile, the problem of water contamination by organic substances is another significant global challenge. We have successfully synthesized ZnGa1.01Te2.13/g-C3N4 (ZGT/GCN) composites for the first time as effective photocatalysts for both pollutant degradation and CO2 reduction. ZGT/GCN composites were synthesized by a simple hydrothermal method. The prepared photocatalysts were characterized by XRD, SEM, TEM-EDS, DRS, BET, PL, and XPS. The ZGT/GCN heterojunction exhibited considerably enhanced photocatalytic activity in the degradation of crystal violet (CV) as well as in the photoreduction of CO2 when compared to pure ZGT and GCN semiconductors. The optimal rate constant for CV degradation was obtained with the ZGT-80%GCN composite (0.0442 h-1), which is higher than the constants obtained with individual ZGT and GCN by 7.75 and 1.63 times, respectively. Moreover, the CO2 reduction yields into CH4 by ZGT-80%GCN was 1.013 μmol/g in 72 h, which is 1.21 and 1.08 times larger than the yields obtained with ZGT and GCN. Scavenger and ESR tests were used to propose the photocatalytic mechanism of the ZGT/GCN composite as well as the active species in the CV degradation.
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Affiliation(s)
- Chiing-Chang Chen
- Department of Science Education and Application, National Taichung University of Education, Taichung 403, Taiwan
| | - Wen-Jin Liu
- Department of Science Education and Application, National Taichung University of Education, Taichung 403, Taiwan
| | - Janah Shaya
- Department of Chemistry, Khalifa University of Science and Technology, Abu Dhabi 127788, United Arab Emirates
- Advanced Materials Chemistry Centre (AMCC), SAN Campus, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Yu-Yun Lin
- Department of Science Education and Application, National Taichung University of Education, Taichung 403, Taiwan
| | - Fu-Yu Liu
- Department of Science Education and Application, National Taichung University of Education, Taichung 403, Taiwan
| | - Chao-Wei Chen
- Department of Science Education and Application, National Taichung University of Education, Taichung 403, Taiwan
| | - Hwei-yan Tsai
- Department of Medical Applied Chemistry, Chung Shan Medical University, Taichung 402, Taiwan
- Department of Medical Education, Chung Shan Medical University Hospital, Taichung 402, Taiwan
| | - Chung-Shin Lu
- Department of General Education, National Taichung University of Science and Technology, Taichung 403, Taiwan
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Photocatalytic CO2 Reduction to CH4 and Dye Degradation Using Bismuth Oxychloride/Bismuth Oxyiodide/Graphitic Carbon Nitride (BiOmCln/BiOpIq/g-C3N4) Nanocomposite with Enhanced Visible-Light Photocatalytic Activity. Catalysts 2023. [DOI: 10.3390/catal13030522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023] Open
Abstract
The use of visible-light-driven photocatalysts in wastewater treatment, photoreduction of CO2, green solar fuels, and solar cells has elicited substantial research attention. Bismuth oxyhalide and its derivatives are a group of visible-light photocatalysts that can diminish electron–hole recombination in layered structures and boost photocatalytic activity. The energy bandgap of these photocatalysts lies in the range of visible light. A simple hydrothermal method was applied to fabricate a series of bismuth oxychloride/bismuth oxyiodide/grafted graphitic carbon nitride (BiOmCln/BiOpIq/g-C3N4) sheets with different contents of g-C3N4. The fabricated sheets were characterized through XRD, TEM, SEM-EDS, XPS, UV-vis DRS, PL, and BET. The conversion efficiency of CO2 reduction to CH4 of BiOmCln/BiOpIq of 4.09 μmol g−1 can be increased to 39.43 μmol g−1 by compositing with g-C3N4. It had an approximately 9.64 times improvement. The photodegradation rate constant for crystal violet (CV) dye of BiOmCln/BiOpIq of k = 0.0684 can be increased to 0.2456 by compositing with g-C3N4. It had an approximately 3.6 times improvement. The electron paramagnetic resonance results and the quenching effects indicated that 1O2, •OH, h+, and •O2− were active species in the aforementioned photocatalytic degradation. Because of their heterojunction, the prepared ternary nanocomposites possessed the characteristics of a heterojunction of type II band alignment.
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3
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Photocatalytic inactivation of harmful algae Microcystis aeruginosa and degradation of microcystin by g-C3N4/Cu-MOF nanocomposite under visible light. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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4
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Ramesh S, Punithamoorthy K. Synthesis and characterization of ternary nanocomposites of
TiO
2
/
rGO
/
CdS
as an efficient catalyst for photo‐degradation of methyl orange. J CHIN CHEM SOC-TAIP 2023. [DOI: 10.1002/jccs.202200473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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5
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Javaid A, Farrukh MA. Comparison of photocatalytic and antibacterial activities of allotropes of graphene doped
Sm
2
O
3
nanocomposites: Optical, thermal, and structural studies. J CHIN CHEM SOC-TAIP 2022. [DOI: 10.1002/jccs.202200478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Arooj Javaid
- Department of Chemistry Forman Christian College (A Chartered University) Lahore Pakistan
| | - Muhammad Akhyar Farrukh
- Department of Basic and Applied Chemistry, Faculty of Science and Technology University of Central Punjab Lahore Pakistan
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Chen HL, Liu FY, Xiao X, Lin YY, Hu J, Liu GY, Gao B, Zou D, Chen CC. Photoreduction of carbon dioxide and photodegradation of organic pollutants using alkali cobalt oxides MCoO 2 (M = Li or Na) as catalysts. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 313:114930. [PMID: 35367671 DOI: 10.1016/j.jenvman.2022.114930] [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: 11/04/2021] [Revised: 03/15/2022] [Accepted: 03/17/2022] [Indexed: 06/14/2023]
Abstract
The recycling of lithium batteries should be prioritized, and the use of discarded alkali metal battery electrode materials as photocatalysts merits research attention. This study synthesized alkali metal cobalt oxide (MCoO2, M = Li or Na) as a photocatalyst for the photoreduction of CO2 and degradation of toxic organic substances. The optimized NaCoO2 and LiCoO2 photocatalysts increased the photocatalytic CO2-CH4 conversion rate to 21.0 and 13.4 μmol g-1 h-1 under ultraviolet light irradiation and to 16.2 and 5.3 μmol g-1 h-1 under visible light irradiation, which is 17 times higher than that achieved by TiO2 P25. The rate constants of the optimized reactions of crystal violet (CV) with LiCoO2 and NaCoO2 were 2.29 × 10-2 and 4.35 × 10-2 h-1, respectively. The quenching effect of the scavengers and electron paramagnetic resonance in CV degradation indicated that active O2•-, 1O2, and h+ play the main role, whereas •OH plays a minor role for LiCoO2. The hyperfine splitting of the DMPO-•OH and DMPO-•CH3 adducts was aN = 1.508 mT, aHβ = 1.478 mT and aN = 1.558 mT, aHβ = 2.267 mT, respectively, whereas the hyperfine splitting of DMPO+• was aN = 1.475 mT. The quenching effect also indicated that active O2•- and h+ play the main role and that •OH and 1O2 play a minor role for NaCoO2. The hyperfine splitting of the DMPO-•OH and DMPO+• adducts was aN = 1.517 mT, aHβ = 1.489 mT and aN = 1.496 mT, respectively. Discarded alkali metal battery electrode materials can be reused as photocatalysts to address environmental pollution.
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Affiliation(s)
- Hung-Lin Chen
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Fu-Yu Liu
- Department of Science Education and Application, National Taichung University of Education, Taichung, 40306, Taiwan
| | - Xinyu Xiao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Yu-Yun Lin
- Department of Science Education and Application, National Taichung University of Education, Taichung, 40306, Taiwan
| | - Jing Hu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Guan-Yo Liu
- Department of Science Education and Application, National Taichung University of Education, Taichung, 40306, Taiwan
| | - Bo Gao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Dechun Zou
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.
| | - Chiing-Chang Chen
- Department of Science Education and Application, National Taichung University of Education, Taichung, 40306, Taiwan.
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Chen CC, Chang SH, Shaya J, Liu FY, Lin YY, Wang LG, Tsai HY, Lu CS. Hydrothermal synthesis of BiOxBry/BiOmIn/GO composites with visible-light photocatalytic activity. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104272] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Aulakh MK, Dua J, Pal B. Influence of capping agents on morphology and photocatalytic response of ZnS nanostructures towards crystal violet degradation under UV and sunlight. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.119869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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9
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Saadoon SJ, Jarosova M, Machek P, Kadhim MM, Ali MH, Khalaji AD. Methylene blue photodegradation using as‐synthesized
CeO
2
nanoparticles. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202100476] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
| | - Marketa Jarosova
- Institute of Physic of the Czech Academy of Sciences Na Slovance Prague Czech Republic
| | - Pavel Machek
- Institute of Physic of the Czech Academy of Sciences Na Slovance Prague Czech Republic
| | - Mustafa M. Kadhim
- Department of Dentistry Kut University College Kut Iraq
- College of technical engineering The Islamic University Najaf Iraq
- Department of Pharmacy Osol Aldeen University College Baghdad Iraq
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