Photocatalytic degradation of organic pollutants using TiO2-based photocatalysts: A review

JOURNAL OF CLEANER PRODUCTION

卷:268

Review

Chen, Dongjie^1,2,3  Cheng, Yanling^1,2  Zhou, Nan^1,2  Chen, Paul^1,2  Wang, Yunpu^1,2,4  Li, Kun⁴  Huo, Shuhao⁶  Cheng, Pengfei^1,2  Peng, Peng^1,2  Zhang, Renchuang^1,2  Wang, Lu^1,2  Liu, Hui⁵  Liu, Yuhuan⁴  Ruan, Roger^1,2,3 

[1] Univ Minnesota, Ctr Biorefining, St Paul, MN 55108 USA

[2] Univ Minnesota, Dept Bioprod & Biosyst Engn, St Paul, MN 55108 USA

[3] Univ Minnesota, Dept Food Sci & Nutr, 1334 Eckles Ave, St Paul, MN USA

[4] Nanchang Univ, Coll Food Sci & Engn, Nanchang, Jiangxi, Peoples R China

[5] Zhongkai Univ Agr & Engn, Dept Environm Sci & Engn, Guangzhou, Peoples R China

[6] Jiangsu Univ, Sch Food & Biol Engn, Zhenjiang, Jiangsu, Peoples R China

关键词: Organic pollutants;    TiO2 based photocatalysts;    Photocatalytic degradation;    Processing parameters;   

DOI  :  10.1016/j.jclepro.2020.121725

来源: Elsevier

【 摘 要 】

Organic compounds, generated from different industries, produce a range of the problematic pollutants in wastewater. TiO2 based photocatalysts are novel materials that exhibit excellent absorption behavior toward organic compounds in wastewater due to their outstanding properties including nontoxicity, high photocatalytic degradation ability, and excellent thermal and chemical stabilities. However, several challenges exist regarding TiO2 applications for organic effluents such as particle aggregation, mass transfer limitation, poor affinity, high band energy, scattering conditions, and difficulty of recovery. Therefore, more design and optimization testing need to be conducted on the treatment conditions in order to reach higher removal efficiencies with lower costs. A variety of parameters of TiO2 based photocatalysts need to be studied: substrate, light intensity, dopant, particle size, structure. These parameters, which affect TiO2 photocatalytic activity on organic pollutants, are discussed in the current review. Thus, making the photocatalyst more anticipated and conducive to further research and development. (C) 2020 Elsevier Ltd. All rights reserved.

【 授权许可】

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