Advanced photocatalytic disinfection mechanisms and their challenges

被引:10
作者
Ding, Yang [1 ]
Yang, Guoxiang [2 ]
Zheng, Sirui [2 ]
Gao, Xing [2 ]
Xiang, Zhuomin [2 ]
Gao, Mengyang [2 ]
Wang, Chunhua [3 ]
Liu, Meijiao [4 ]
Zhong, Jiasong [1 ]
机构
[1] Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China
[2] Zhejiang Gongshang Univ, Sch Environm Sci & Engn, Hangzhou 310018, Peoples R China
[3] City Univ Hong Kong, Sch Energy & Environm, Kowloon, Hong Kong 99077, Peoples R China
[4] Zhejiang Sci Tech Univ, Sch Chem & Chem Engn, Hangzhou 310018, Zhejiang, Peoples R China
关键词
Photocatalysis; Microorganisms inactivation; Photocatalyst modification; Water environment; Antibacterial mechanism; TITANIUM-DIOXIDE PHOTOCATALYSIS; HIGHLY EFFICIENT; NANOPARTICLES; ENHANCEMENT; CARBOCATALYSIS; NANOMATERIALS; DEGRADATION; REMEDIATION; PERFORMANCE; COMPOSITES;
D O I
10.1016/j.jenvman.2024.121875
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Currently, microbial contamination issues have globally brought out a huge health threat to human beings and animals. To be specific, microorganisms including bacteria and viruses display durable ecological toxicity and various diseases to aquatic organisms. In the past decade, the photocatalytic microorganism inactivation technique has attracted more and more concern owing to its green, low-cost, and sustainable process. A variety kinds of photocatalysts have been employed for killing microorganisms in the natural environment. However, two predominant shortcomings including low activity of photocatalysts and diverse impacts of water characteristics are still displayed in the current photocatalytic disinfection system. So far, various strategies to improve the inherent activity of photocatalysts. Other than the modification of photocatalysts, the optimization of environments of water bodies has been also conducted to enhance microorganisms inactivation. In this mini-review, we outlined the recent progress in photocatalytic sterilization of microorganisms. Meanwhile, the relevant methods of photocatalyst modification and the influences of water body characteristics on disinfection ability were thoroughly elaborated. More importantly, the relationships between strategies for constructing advanced photocatalytic microorganism inactivation systems and improved performance were correlated. Finally, the perspectives on the prospects and challenges of photocatalytic disinfection were presented. We sincerely hope that this critical mini-review can inspire some new concepts and ideas in designing advanced photocatalytic disinfection systems.
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页数:15
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