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Juve JMA, Donoso Reece JA, Wong MS, Wei Z, Ateia M. Photocatalysts for chemical-free PFOA degradation - What we know and where we go from here? JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132651. [PMID: 37827098 DOI: 10.1016/j.jhazmat.2023.132651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 08/11/2023] [Accepted: 09/26/2023] [Indexed: 10/14/2023]
Abstract
Perfluorooctanoic acid (PFOA) is a toxic and recalcitrant perfluoroalkyl substance commonly detected in the environment. Its low concentration challenges the development of effective degradation techniques, which demands intensive chemical and energy consumption. The recent stringent health advisories and the upgrowth and advances in photocatalytic technologies claim the need to evaluate and compare the state-of-the-art. Among these systems, chemical-free photocatalysis emerges as a cost-effective and sustainable solution for PFOA degradation and potentially other perfluorinated carboxylic acids. This review (I) classifies the state-of-the-art of chemical-free photocatalysts for PFOA degradation in families of materials (Ti, Fe, In, Ga, Bi, Si, and BN), (II) describes the evolution of catalysts, identifies and discusses the strategies to enhance their performance, (III) proposes a simplified cost evaluation tool for simple techno-economical analysis of the materials; (IV) compares the features of the catalysts expanding the classic degradation focus to other essential parameters, and (V) identifies current research gaps and future research opportunities to enhance the photocatalyst performance. We aim that this critical review will assist researchers and practitioners to develop rational photocatalyst designs and identify research gaps for green and effective PFAS degradation.
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Affiliation(s)
- Jan-Max Arana Juve
- Centre for Water Technology (WATEC) & Department of Biological and Chemical Engineering, Aarhus University, Universitetsbyen 36, 8000 Aarhus C, Denmark; Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA
| | - Juan A Donoso Reece
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA
| | - Michael S Wong
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA
| | - Zongsu Wei
- Centre for Water Technology (WATEC) & Department of Biological and Chemical Engineering, Aarhus University, Universitetsbyen 36, 8000 Aarhus C, Denmark.
| | - Mohamed Ateia
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA; Center for Environmental Solutions & Emergency Response, US Environmental Protection Agency, Cincinnati, OH, USA.
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Zhu C, Guo G, Li W, Wu M, Jiang Y, Wu W, Zhang H. Direct Catalytic Oxidation of Low-Concentration Methane to Methanol in One Step on Ni-Promoted BiOCl Catalysts. ACS OMEGA 2023; 8:11220-11232. [PMID: 37008125 PMCID: PMC10061602 DOI: 10.1021/acsomega.2c08039] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 03/08/2023] [Indexed: 06/19/2023]
Abstract
The direct oxidation of low-concentration methane (CH4) to methanol (CH3OH) is often regarded as the "holy grail". However, it still is very difficult and challenging to oxidize methane to methanol in one step. In this work, we present a new approach to directly oxidize CH4 to generate CH3OH in one step by doping non-noble metal Ni sites on bismuth oxychloride (BiOCl) equipped with high oxygen vacancies. Thereinto, the conversion rate of CH3OH can reach 39.07 μmol/(gcat·h) under 420 °C and flow conditions on the basis of O2 and H2O. The crystal morphology structure, physicochemical properties, metal dispersion, and surface adsorption capacity of Ni-BiOCl were explored, and the positive effect on the oxygen vacancy of the catalyst was proved, thus improving the catalytic performance. Furthermore, in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) was also performed to study the surface adsorption and reaction process of methane to methanol in one step. Results demonstrate that the key to keep good activity lies in the oxygen vacancies of unsaturated Bi atoms, which can adsorb and active CH4 and to produce methyl groups and adsorbing hydroxyl groups in methane oxidation process. This study broadens the application of oxygen-deficient catalysts in the catalytic conversion of CH4 to CH3OH in one step, which provides a new perspective on the role of oxygen vacancies in improving the catalytic performance of methane oxidation.
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Affiliation(s)
- Chen Zhu
- Laboratory
of Basic Research in Biomass Conversion and Utilization, Department
of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Ge Guo
- Laboratory
of Basic Research in Biomass Conversion and Utilization, Department
of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Wenzhi Li
- Laboratory
of Basic Research in Biomass Conversion and Utilization, Department
of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230026, China
- Institute
of Energy, Hefei Comprehensive National
Science Center, Hefei 230031, China
| | - Mingwei Wu
- Laboratory
of Basic Research in Biomass Conversion and Utilization, Department
of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Yihang Jiang
- Laboratory
of Basic Research in Biomass Conversion and Utilization, Department
of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Wenjian Wu
- Laboratory
of Basic Research in Biomass Conversion and Utilization, Department
of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Hao Zhang
- Laboratory
of Basic Research in Biomass Conversion and Utilization, Department
of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230026, China
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Oxygen vacancies facilitated photocatalytic detoxification of three typical contaminants over graphene oxide surface embellished BiOCl photocatalysts. ADV POWDER TECHNOL 2023. [DOI: 10.1016/j.apt.2023.103971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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Liao H, Ran Y, Zhong J, Li J, Li M, Yang H. Panax notoginseng powder -assisted preparation of carbon-quantum-dots/BiOCl with enriched oxygen vacancies and boosted photocatalytic performance. ENVIRONMENTAL RESEARCH 2022; 215:114366. [PMID: 36155155 DOI: 10.1016/j.envres.2022.114366] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/03/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
Low activity of photocatalysts is a serious bottleneck to the practical application of photocatalytic technology. In this paper, a series of BiOCl composite photocatalysts containing carbon quantum dots (CQDs) were successfully prepared by adding Panax notoginseng powder (PNP) to the solvothermal synthesis system of BiOCl as a template agent and a raw material for 0D CQDs. CQDs/BiOCl exhibit 2D flake structures and 3D flower-like microspheres self-assembled from thin flakes, holding rich oxygen vacancies (OVs). After detailed characterization, it was found that the amount of OVs on BiOCl could be regulated according to the amount of PNP added. The CQDs/OVs-BiOCl photocatalysts exhibit higher photogenerated charge separation efficiency and photocatalytic activity than the bare BiOCl. When the mass ratio of PNP/BiOCl is 1.0%, the photocatalyst demonstrates the maximum degradation activity for rhodamine B (RhB) and perfluorooctanoic acid (PFOA). In view of the solid observations, a photocatalytic enhancement mechanism of CQDs/BiOCl was elucidated.
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Affiliation(s)
- Hongru Liao
- College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, 643000, PR China
| | - Yu Ran
- College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, 643000, PR China
| | - Junbo Zhong
- College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, 643000, PR China.
| | - Jianzhang Li
- College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, 643000, PR China
| | - Minjiao Li
- College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, 643000, PR China
| | - Hao Yang
- Sichuan Tianren Chemical Engineering Co. Ltd., Chengdu, 610031, PR China
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In-situ construction of h-BN/BiOCl heterojunctions with rich oxygen vacancies for rapid photocatalytic removal of typical contaminants. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Norouzi M, Fazeli A, Tavakoli O. Photocatalytic degradation of phenol under visible light using electrospun Ag/TiO2 as a 2D nano-powder: Optimizing calcination temperature and promoter content. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Li H, Zhang T, Tang X, Zhong J, Li J, Du Z, Dan Y. Effectively destruction of rhodamine B and perfluorooctanoic acid over BiOCl with boosted separation ability of carriers benefited from tunable oxygen vacancies. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Tang X, Li H, Zhang T, Zhong J, Du H. P123-assisted hydrothermal synthesis of Ag2MoO4 with enhanced photocatalytic performance. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Shukla BK, Gautam MK, Rawat S, Bhan C, Bhandari H, Singh J, Garg S. Statistical optimization of process conditions for photocatalytic degradation of phenol with bismuth molybdate photocatalyst. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-022-02236-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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