期刊
CHEMOSPHERE
卷 304, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2022.135349
关键词
Zirconia; Modification; Photodegradation; Organic pollutants; Water treatment
资金
- Fundamental Research Grant Scheme from Ministry of Higher Education Malaysia [FRGS/1/2019/STG07/UTM/01/1 -5F192]
- Research University Grant from Universiti Teknologi Malaysia [08G92]
This paper discusses the fundamentals, synthesis methods, and additional modification approaches for ZrO2-based photocatalysts. It highlights the importance of stability, reusability, and the formation of heterojunctions in enhancing photocatalytic activity. The paper also explores the use of magnetic-based separation for photocatalyst recovery.
Heterogeneous advanced oxidation processes are a promising approach for cost-efficient removal of pollutants using semiconductors. Zirconium dioxide (ZrO2) is an auspicious material for photocatalytic activity owning to its suitable bandgap, stability, and low cost. However, ZrO2 suffers from fast recombination rate, and poor light harvesting ability. Nonetheless, extra modification has also shown improvements and therefore is worth investigating. The endeavour of this paper initially discusses the fundamentals with respect to reactive species, classification, and synthesis methods for ZrO2. Furthermore, with particular consideration to stability and reusability, several additional modification approaches for ZrO2-based photocatalysts such as doping and noble metals loading. Furthermore, the formation of heterojunctions has also been shown to boost photocatalytic activity while inhibiting charge carrier recombination. Finally, photocatalyst separation via magnetic-based photocatalysts are elucidated. As a result, ZrO2-based photocatalysts are regarded as a promising emerging technology that warrants further development and research.
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