期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 420, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2021.126607
关键词
Continuous photocatalysis; Photo-charging; Dark-discharging; Environmental remediation
资金
- National Key R&D Program of China [2019YFC0408301]
- National Natural Science Foundation of China [51779076]
- Fundamental Research Funds for the Central Universities [B210202101]
- Funds for Key Research and Development Project of Science and Technology Department of Jiangsu Province [BE2018738]
- Six Talent Peaks Project in Jiangsu Province [2016-JNHB-007]
- 333 Talent Project Foundation of Jiangsu Province
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
Continuous photocatalysis utilizing photo-charging and dark-discharging represents a shift from traditional photocatalysis, eliminating the need for continuous illumination. Despite substantial progress in environmental applications of continuous photocatalysis, there is a lack of systematic reviews addressing important information gaps, hindering its practical use.
Continuous photocatalysis via photo-charging and dark-discharging presents a paradigm shift in conventional photocatalysis with the requirement of continuous illumination to maintain the catalytic activity. This is expected to meet the ever-increasing demand for sustainable development of energy and environment driven by natural day-night cycles. Substantial advances in continuous photocatalysis for various environmental applications under light-dark cycles have been witnessed during the last decade. However, there lacks a systematic and critical review on basic but important information of continuous photocatalysis for environmental remediation, challenging robust scientific progress of this technology towards potential practical use. Here, the general description of continuous photocatalysis involving energy storage mechanisms (hole and electron storage) and characterizations (electron storage behaviors, release behaviors and storage capacity) has been first introduced. Importantly, the remediation performance and mechanism of continuous photocatalysis for environmental applications are qualitatively and quantitatively demonstrated, including chemical pollutant oxidation and reduction, microbial pathogen inactivation, and multifunctional treatment. In addition, key factors influencing its remediation performance are analyzed, for the first time, from both operational and environmental views. The ample opportunities in the field of continuous photocatalysis for sustainable environmental remediation are also pointed out, calling for more efforts to fill current knowledge gaps in the future.
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