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Lian Z, Gao F, Xiao H, Luo D, Li M, Fang D, Yang Y, Zi J, Li H. Photo-self-Fenton Reaction Mediated by Atomically Dispersed Ag-Co Photocatalysts toward Efficient Degradation of Organic Pollutants. Angew Chem Int Ed Engl 2024; 63:e202318927. [PMID: 38189599 DOI: 10.1002/anie.202318927] [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: 12/08/2023] [Revised: 12/28/2023] [Accepted: 01/08/2024] [Indexed: 01/09/2024]
Abstract
Achieving the complete mineralization of persistent pollutants in wastewater is still a big challenge. Here, we propose an efficient photo-self-Fenton reaction for the degradation of different pollutants using the high-density (Ag: 22 wt %) of atomically dispersed AgCo dual sites embedded in graphic carbon nitride (AgCo-CN). Comprehensive experimental measurements and density functional theory (DFT) calculations demonstrate that the Ag and Co dual sites in AgCo-CN play a critical role in accelerating the photoinduced charge separation and forming the self-Fenton redox centers, respectively. The bimetallic AgCo-CN exhibited excellent photocatalytic performance toward the phenol even under extreme conditions due to an efficient degradation pathway and in situ generation of the hydrogen peroxide producing the main active oxygen species (⋅OH and 1 O2 ) and showed long-term activity in a self-design photo-Filter reactor for the purification of the phenol. Our discoveries pave the way for the design of efficient single-atoms photocatalysts-based photo-self-Fenton reaction for recalcitrant pollutant treatment.
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Affiliation(s)
- Zichao Lian
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, P. R. China
- School of Environmental Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Fangfang Gao
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, P. R. China
| | - Han Xiao
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, P. R. China
| | - Di Luo
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, P. R. China
| | - Mengyuan Li
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, P. R. China
| | - Duoduo Fang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, P. R. China
| | - Yupeng Yang
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, P. R. China
| | - Jiangzhi Zi
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, P. R. China
| | - Hexing Li
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, P. R. China
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Ciria-Ramos I, Juarez-Perez EJ, Haro M. Solar Energy Storage Using a Cu 2 O-TiO 2 Photocathode in a Lithium Battery. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2301244. [PMID: 37010019 DOI: 10.1002/smll.202301244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Indexed: 06/19/2023]
Abstract
A Cu2 O-TiO2 photoelectrode is pr+oposed for simultaneous solar light energy harvesting and storing of electrochemical energy in an adapted lithium coin cell. The p-type Cu2 O semiconductor layer is the light harvester component of the photoelectrode and the TiO2 film performs as the capacitive layer. The rationale of the energy scheme shows that the photocharges generated in the Cu2 O semiconductor induce lithiation/delithiation processes in the TiO2 film as a function of the applied bias voltage and light power. A photorechargeable lithium button cell drilled on one side recharges with visible white light in ≈9 h in open circuit. It provides an energy density of ≈150 mAh g-1 at 0.1 C discharge current in dark, and the overall efficiency is 0.29%. This work draws a new approach for the photoelectrode role to advance in monolithic rechargeable batteries.
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Affiliation(s)
- Isabel Ciria-Ramos
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza, 50009, Spain
- Departamento de Química Física, Facultad de Ciencias, Universidad de Zaragoza, Plaza San Francisco, Zaragoza, 50009, Spain
| | - Emilio J Juarez-Perez
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza, 50009, Spain
- Aragonese Foundation for Research and Development (ARAID), Government of Aragon, Zaragoza, 50018, Spain
| | - Marta Haro
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza, 50009, Spain
- Departamento de Química Física, Facultad de Ciencias, Universidad de Zaragoza, Plaza San Francisco, Zaragoza, 50009, Spain
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Wu J, Tao Y, Zhang C, Zhu Q, Zhang D, Li G. Activation of chloride by oxygen vacancies-enriched TiO 2 photoanode for efficient photoelectrochemical treatment of persistent organic pollutants and simultaneous H 2 generation. JOURNAL OF HAZARDOUS MATERIALS 2023; 443:130363. [PMID: 36444064 DOI: 10.1016/j.jhazmat.2022.130363] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 11/06/2022] [Accepted: 11/07/2022] [Indexed: 05/27/2023]
Abstract
Photoelectrochemical (PEC) activation of chloride ions (Cl-) to degrade persistent organic pollutants (POPs) is a promising strategy for the treatment of industrial saline organic wastewater. However, the wide application of this technology is greatly restricted due to the general photoanode activation of Cl- with poor capability, the propensity to produce toxic by-products chlorates, and the narrow pH range. Herein, oxygen vacancies-enriched titanium dioxide (Ov-TiO2) photoanode is explored to strongly activate Cl- to drive the deep mineralization of POPs wastewater in a wide pH range (2-12) with simultaneous production of H2. More importantly, nearly no toxic by-product of chlorates was produced during such PEC-Cl system. The degradation efficiency of 4-CP and H2 generation rate by Ov-TiO2 were 99.9% within 60 min and 198.2 μmol h-1 cm-2, respectively, which are far superior to that on the TiO2 (33.1% within 60 min, 27.5 μmol h-1 cm-2) working electrode. DFT calculation and capture experiments revealed that Ov-TiO2 with abundant oxygen vacancies is conducive to the activation of Cl- to produce more reactive chlorine species, evidenced by its high production of free chlorine (48.7 mg L-1 vs 7.5 mg L-1 of TiO2). The as-designed PEC-Cl system in this work is expected to realize the purification of industrial saline organic wastewater coupling with green energy H2 evolution.
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Affiliation(s)
- Jiabao Wu
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, PR China
| | - Ying Tao
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, PR China
| | - Chi Zhang
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, PR China
| | - Qiong Zhu
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, PR China
| | - Dieqing Zhang
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, PR China.
| | - Guisheng Li
- The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, PR China; School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai 200234, PR China; School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, PR China.
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Bhakta AK, Fiorenza R, Jlassi K, Mekhalif Z, Ali AMA, Chehimi MM. The emerging role of biochar in the carbon materials family for hydrogen production. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.09.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Photoelectrocatalysis for high-value-added chemicals production. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(21)63923-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Zheng Z, Lo IMC. Multifunctional photoelectrochemical systems for coupled water treatment and high-value product generation: current status, mechanisms, remaining challenges, and future opportunities. Curr Opin Chem Eng 2021. [DOI: 10.1016/j.coche.2021.100711] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Chai Y, Chen Y, Shen J, Ni M, Wang B, Li D, Zhang Z, Wang X. Distortion of the Coordination Structure and High Symmetry of the Crystal Structure in In 4SnS 8 Microflowers for Enhancing Visible-Light Photocatalytic CO 2 Reduction. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02937] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Yao Chai
- State Key Lab of Photocatalysis on Energy and Environment, School of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China
| | - Yanmei Chen
- State Key Lab of Photocatalysis on Energy and Environment, School of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China
| | - Jinni Shen
- State Key Lab of Photocatalysis on Energy and Environment, School of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China
| | - Mengmeng Ni
- State Key Lab of Photocatalysis on Energy and Environment, School of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China
| | - Bing Wang
- State Key Lab of Photocatalysis on Energy and Environment, School of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China
| | - Dongmiao Li
- State Key Lab of Photocatalysis on Energy and Environment, School of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China
| | - Zizhong Zhang
- State Key Lab of Photocatalysis on Energy and Environment, School of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China
- Qingyuan Innovation Laboratory, Quanzhou 362801, P. R. China
| | - Xuxu Wang
- State Key Lab of Photocatalysis on Energy and Environment, School of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China
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