A Review of Noble Metal Catalysts for Catalytic Removal of VOCs

Volatile organic compounds (VOCs) are important precursors for the formation of secondary pollutants, such as fine particulate matter (PM) and ozone (O<sub>3</sub>), which will lead to severe atmospheric environmental problems to restrict the sustainable development of the social economy...

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Bibliographic Details
Main Authors: Shaoqi Chu, Enlai Wang, Fushan Feng, Changsheng Zhang, Jie Jiang, Qinqin Zhang, Fang Wang, Liancheng Bing, Guangjian Wang, Dezhi Han
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Catalysts
Subjects:
Online Access:https://www.mdpi.com/2073-4344/12/12/1543
Description
Summary:Volatile organic compounds (VOCs) are important precursors for the formation of secondary pollutants, such as fine particulate matter (PM) and ozone (O<sub>3</sub>), which will lead to severe atmospheric environmental problems to restrict the sustainable development of the social economy. Catalytic oxidation is a safe, eco-friendly, and simple method for eliminating VOCs, which can be converted into CO<sub>2</sub> and H<sub>2</sub>O without the generation of other harmful substances. The fabrication and development of catalysts are very crucial to enhance the catalytic oxidation efficiency of the removal of VOCs. The noble metal catalyst is one of the commonly used catalysts for the catalytic oxidation of VOCs because of the high reaction activity, good stability, poisoning-resistant ability, and easy regeneration. In this review, the research progress of noble metal (Pt, Pd, Au, Ag, and Ir) catalysts for the removal of VOCs in recent years was summarized with the discussion of the influence factors in the preparation process on the catalytic performance. The reaction mechanisms of the removal of VOCs over the corresponding noble metal catalysts were also briefly discussed.
ISSN:2073-4344