Nature-Derived Approach to Oxygen and Chlorine Dual-Vacancies for Efficient Photocatalysis and Photoelectrochemistry
Abstract
Crystal defect engineering has sparked huge interests owing to their significance for tailoring surface properties, photoelectronic properties, etc. However, conventional methods, e.g., H2 reduction, can only achieve a single type of vacancy and always suffer from the drawbacks of harsh synthetic condition, complex procedure, and energy consuming. In this paper, we report a green, cost-effective, and scalable nature-derived reduction protocol with extracting solution of green tea and spinach to in situ achieve oxygen and chlorine dual-vacancies in BiOCl (BiO1–xCl1-y). The introduction of O and Cl vacancies gives rise to enormous amelioration on the crystal structure, electronic band structure, and surface state, thereby resulting in enhanced photoabsorption and a remarkably enhanced surface charge transfer efficiency (11-fold enhancement). Profiting from these merits, BiO1–xCl1–y exhibits highly promoted photocatalytic oxidation ability and an efficient activity for selective CO2 reduction into CO. Interestingly, continuously adjustable photoresponse and defect level for BiO1–xCl1–y was realized by simply regulating the extract concentration, which can well balance photoabsorption and photoredox driving force. The current synthetic route is demonstrated to be also applicable to BiOBr and BiOI. To verify the role of the current natural antioxidant, BiO1–xCl1–y is also successfully synthesized by the chemicals of extracting solution ingredients. This workmore »
- Authors:
-
- China Univ. of Geosciences, Beijing (China)
- Univ. of Nevada, Las Vegas, NV (United States)
- Chongqing Technology and Business Univ., Chongqing (China)
- Nanyang Normal Univ., Nanyang (China)
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- Sponsoring Org.:
- National Natural Science Foundation of China (NSFC); USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES); Fundamental Research Funds for the Central Universities
- OSTI Identifier:
- 1419879
- Resource Type:
- Accepted Manuscript
- Journal Name:
- ACS Sustainable Chemistry & Engineering
- Additional Journal Information:
- Journal Volume: 6; Journal Issue: 2; Journal ID: ISSN 2168-0485
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- ENGLISH
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; BiO1−xCl1−y; Vacancy; Green tea; Spinach; Photocatalysis
Citation Formats
Li, Min, Zhang, Yihe, Li, Xiaowei, Wang, Yonggang, Dong, Fan, Ye, Liqun, Yu, Shixin, and Huang, Hongwei. Nature-Derived Approach to Oxygen and Chlorine Dual-Vacancies for Efficient Photocatalysis and Photoelectrochemistry. United States: N. p., 2018.
Web. doi:10.1021/acssuschemeng.7b03847.
Li, Min, Zhang, Yihe, Li, Xiaowei, Wang, Yonggang, Dong, Fan, Ye, Liqun, Yu, Shixin, & Huang, Hongwei. Nature-Derived Approach to Oxygen and Chlorine Dual-Vacancies for Efficient Photocatalysis and Photoelectrochemistry. United States. https://doi.org/10.1021/acssuschemeng.7b03847
Li, Min, Zhang, Yihe, Li, Xiaowei, Wang, Yonggang, Dong, Fan, Ye, Liqun, Yu, Shixin, and Huang, Hongwei. Tue .
"Nature-Derived Approach to Oxygen and Chlorine Dual-Vacancies for Efficient Photocatalysis and Photoelectrochemistry". United States. https://doi.org/10.1021/acssuschemeng.7b03847. https://www.osti.gov/servlets/purl/1419879.
@article{osti_1419879,
title = {Nature-Derived Approach to Oxygen and Chlorine Dual-Vacancies for Efficient Photocatalysis and Photoelectrochemistry},
author = {Li, Min and Zhang, Yihe and Li, Xiaowei and Wang, Yonggang and Dong, Fan and Ye, Liqun and Yu, Shixin and Huang, Hongwei},
abstractNote = {Crystal defect engineering has sparked huge interests owing to their significance for tailoring surface properties, photoelectronic properties, etc. However, conventional methods, e.g., H2 reduction, can only achieve a single type of vacancy and always suffer from the drawbacks of harsh synthetic condition, complex procedure, and energy consuming. In this paper, we report a green, cost-effective, and scalable nature-derived reduction protocol with extracting solution of green tea and spinach to in situ achieve oxygen and chlorine dual-vacancies in BiOCl (BiO1–xCl1-y). The introduction of O and Cl vacancies gives rise to enormous amelioration on the crystal structure, electronic band structure, and surface state, thereby resulting in enhanced photoabsorption and a remarkably enhanced surface charge transfer efficiency (11-fold enhancement). Profiting from these merits, BiO1–xCl1–y exhibits highly promoted photocatalytic oxidation ability and an efficient activity for selective CO2 reduction into CO. Interestingly, continuously adjustable photoresponse and defect level for BiO1–xCl1–y was realized by simply regulating the extract concentration, which can well balance photoabsorption and photoredox driving force. The current synthetic route is demonstrated to be also applicable to BiOBr and BiOI. To verify the role of the current natural antioxidant, BiO1–xCl1–y is also successfully synthesized by the chemicals of extracting solution ingredients. This work exclusively sheds new light on engineering crystal defects via the eco-friendly bioinspired tactics and also provides a reference for promoting photo (electro) chemical property by dual-vacancies cooperation.},
doi = {10.1021/acssuschemeng.7b03847},
journal = {ACS Sustainable Chemistry & Engineering},
number = 2,
volume = 6,
place = {United States},
year = {Tue Jan 09 00:00:00 EST 2018},
month = {Tue Jan 09 00:00:00 EST 2018}
}
Web of Science
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