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Liu J, Wan Y, Wang H, Zhang Y, Xu M, Song X, Zhou W, Zhang J, Ma W, Huo P. Enhanced activation of peroxymonosulfate by ZIF-67/g-C 3N 4 S-scheme photocatalyst under visible light assistance for degradation of polyethylene terephthalate. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 360:124682. [PMID: 39111530 DOI: 10.1016/j.envpol.2024.124682] [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: 06/14/2024] [Revised: 07/30/2024] [Accepted: 08/04/2024] [Indexed: 08/10/2024]
Abstract
Photocatalyst-activated peroxymonosulfate (PMS) degradation of pollutants is already widely used for wastewater treatment under visible light. Polyethylene terephthalate (PET) is widely used in daily life, but waste plastics have an irreversible negative impact on the environment. In this paper, the ZIF-67/g-C3N4 S-scheme heterojunction catalyst was synthesized as a photocatalyst to achieve a good effect on PET degradation in coordination with PMS. The results indicated that PET could be degraded up to 60.63 ± 2.12 % under the combined effect of catalyst, PMS, and light. In this experiment, the influence of catalyst-to-plastic ratio, PMS concentration, aqueous pH, and inorganic anions on plastic degradation by the photocatalytic synergistic PMS system was discussed, and the excellent performance of this system for degrading PET was highlighted through a comparative test. Electron spin resonance (ESR) and free radical quenching experiments demonstrated that SO4•- contributes the largest amount to the PET degradation performance. Furthermore, results from gas chromatography and liquid chromatography-mass spectrometry (LC-MS) indicated that the plastic degradation products include CO, CH4, and organic small-molecule liquid fuels. Finally, a possible mechanism for the light/PMS system to degrade PET in water was suggested. This paper provides a feasible solution to treat waste microplastics in water.
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Affiliation(s)
- Jiejing Liu
- Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Yang Wan
- Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Huijie Wang
- Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Yining Zhang
- School of Ecology and Environment, Zhengzhou University, Zhengzhou, 450001, PR China
| | - Mengyang Xu
- Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Xianghai Song
- Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Weiqiang Zhou
- Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Jisheng Zhang
- Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Wei Ma
- School of Chemical and Environmental Engineering, Pingdingshan University, Pingdingshan, 467000, PR China
| | - Pengwei Huo
- Institute of Green Chemistry and Chemical Technology, School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
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Farhan S, Hassan Raza A, Yang S, Yu Z, Wu Y. Boosted photocatalytic hydrogen evolution of S-scheme N-doped CeO 2-δ@ZnIn 2S 4 heterostructure photocatalyst. J Colloid Interface Sci 2024; 669:430-443. [PMID: 38723532 DOI: 10.1016/j.jcis.2024.04.189] [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: 02/28/2024] [Revised: 04/15/2024] [Accepted: 04/26/2024] [Indexed: 05/27/2024]
Abstract
The advancement of highly effective heterojunction photocatalysts with improved charge separation and transfer has become a crucial scientific perspective for utilizing solar energy. In this study, we developed the S-scheme heterostructure by depositing N-doped CeO2-δ (NC) nanoparticles onto two-dimensional ZnIn2S4 (ZIS) nanosheets via hydrolysis strategy for significantly enhanced photocatalytic hydrogen evolution reaction. The optimal H2 generation rate of ∼ 798 μmol g-1 h-1 was achieved for NC-3@ZIS under solar light irradiation, which is about 18 and 2 times higher than those of pristine CeO2 (∼44 μmol g-1 h-1) and ZIS (∼358 μmol g-1 h-1), respectively. The photogenerated electrons from NC interact with the photogenerated holes of ZIS driven by an internal electric field, confirmed by In-situ KPFM, DFT calculation, and XPS results. According to EPR and photoelectrochemical measurements, NC-3@ZIS composite shows dramatically high separation efficiency of photogenerated charge carriers. This study provides a new approach for developing non-noble metal S-scheme heterojunctions with enhanced photocatalytic hydrogen evolution.
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Affiliation(s)
- Shumail Farhan
- Faculty of Materials Science and Chemistry, China University of Geosciences, 68 Jincheng Street, Wuhan 430078, China
| | - Asif Hassan Raza
- Faculty of Materials Science and Chemistry, China University of Geosciences, 68 Jincheng Street, Wuhan 430078, China
| | - Songyu Yang
- Faculty of Materials Science and Chemistry, China University of Geosciences, 68 Jincheng Street, Wuhan 430078, China
| | - Zhixian Yu
- Faculty of Materials Science and Chemistry, China University of Geosciences, 68 Jincheng Street, Wuhan 430078, China
| | - Yan Wu
- Faculty of Materials Science and Chemistry, China University of Geosciences, 68 Jincheng Street, Wuhan 430078, China.
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Wang Q, Li L, Lu J, Chai Y, Shen J, Liang J. Construction of Co 1-xZn xFe 2xGa 2-2xO 4 (0<x≤0.6) Solid Solutions for Improving Solar Fuels Production in Photocatalytic CO 2 Reduction by H 2O Vapour. Chemistry 2024; 30:e202304148. [PMID: 38564294 DOI: 10.1002/chem.202304148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 03/26/2024] [Accepted: 04/02/2024] [Indexed: 04/04/2024]
Abstract
Solid solutions are garnering substantial attention in the realm of solar energy utilization due to their tunable electronic properties, encompassing band edge positions and charge-carrier mobilities. In this study, we designed and synthesized Co1-xZnxFe2xGa2-2xO4 (0
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Affiliation(s)
- Qiang Wang
- State Key Laboratory of High-efficiency, Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, China
| | - Li Li
- State Key Laboratory of High-efficiency, Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, China
| | - Jiaxue Lu
- State Key Laboratory of High-efficiency, Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, China
| | - Yao Chai
- State Key Laboratory of High-efficiency, Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, China
| | - Jinni Shen
- State Key Lab of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Jun Liang
- State Key Laboratory of High-efficiency, Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, China
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Dash S, Tripathy SP, Subudhi S, Behera P, Mishra BP, Panda J, Parida K. A Visible Light-Driven α-MnO 2/UiO-66-NH 2 S-Scheme Photocatalyst toward Ameliorated Oxy-TCH Degradation and H 2 Evolution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:4514-4530. [PMID: 38350006 DOI: 10.1021/acs.langmuir.3c04050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
Photocatalytic hydrogen production and pollutant degradation using a heterogeneous photocatalyst remains an alternative route for mitigating the impending pollution and energy crisis. Hence, the development of cost-effective and environmentally friendly semiconducting materials with high solar light captivation nature is imperative. To overcome this challenge, α-MnO2 nanorod (NR)-modified MOF UiO-66-NH2 (UNH) was prepared via a facile solvothermal method, which is efficient toward H2 evolution and oxy-tetracycline hydrochloride (O-TCH) degradation. The field-emission scanning electron microscopy (FESEM) and high-resolution transmission electron microscopy (HR-TEM) results of the α-MnO2@UNH (MnU) hybrid reveals its nanorod embedded in MOF matrix, and the X-ray photoelectron spectroscopy (XPS) result confirms the interaction of UNH moiety with α-MnO2 NRs. Additionally, the outstanding separation of photogenerated excitons and the charge-transfer efficacy are further validated by photoluminescence (PL), time-resolved photoluminescence (TRPL), electrochemical impedance spectroscopy (EIS), and transient photocurrent analysis, which are the key causes for photoactivity augmentation in the MnU composites. The MnU-2 composite shows a superior O-TCH degradation efficiency of 93.23% and an excellent H2 production rate of about 410.6 μmol h-1 upon light irradiation. This study provides significant evidence in favor of the suggested mediator-free S-scheme-adapted charge migration path, and it effectively explains the enhanced exciton separation leading to extraordinary catalytic efficiency of the proposed composite.
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Affiliation(s)
- Srabani Dash
- Centre for Nanoscience and Nanotechnology, Siksha 'O' Anusnadhan (Deemed to be University), Bhubaneswar 751030, Odisha, India
| | - Suraj Prakash Tripathy
- Centre for Nanoscience and Nanotechnology, Siksha 'O' Anusnadhan (Deemed to be University), Bhubaneswar 751030, Odisha, India
| | - Satyabrata Subudhi
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh, India
| | - Pragyandeepti Behera
- Centre for Nanoscience and Nanotechnology, Siksha 'O' Anusnadhan (Deemed to be University), Bhubaneswar 751030, Odisha, India
| | | | - Jayashree Panda
- Centre for Nanoscience and Nanotechnology, Siksha 'O' Anusnadhan (Deemed to be University), Bhubaneswar 751030, Odisha, India
| | - Kulamani Parida
- Centre for Nanoscience and Nanotechnology, Siksha 'O' Anusnadhan (Deemed to be University), Bhubaneswar 751030, Odisha, India
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