Advances in photocatalytic removal of NO_x and VOCs from flue gas
Journal Title: Energy Environmental Protection - Year 2024, Vol 38, Issue 4
Abstract
Nitrogen oxides (NO_x) and volatile organic compounds (VOCs) are significant precursors to particulate matter(PM_2.5) and ozone (O_3), posing serious health hazards. Photocatalytic oxidation technology is gaining increasing attention due to its mild conditions, energy efficiency, safety, and non-toxic nature. Currently, semiconductor photocatalysts, primarily based on TiO_2, exhibit unique physicochemical properties and excellent performance, becoming a focal point in current research on atmospheric pollution control. This review summarizes the latest research progress in the photocatalytic oxidation technology for the individual and simultaneous removal of NO_x and VOCs, with a focus on the potential roles of TiO_2 photocatalysts and other photocatalysts. It also explains strategies for enhancing photocatalytic activity, such as noble metal doping, non-metal doping, and semiconductor coupling. Additionally, it reviews experimental parameters, removal efficiency, and degradation mechanisms for photocatalytic degradation of flue gas NO_x and VOCs. This review aims to summarize the structure-performance-application relationship in the development of semiconductor photocatalytic materials, provide parameter support and optimization suggestions for research on the simultaneous removal of flue gas NO_x and VOCs, discuss new catalyst preparation and modification approaches, and promote future research on the co-removal of NO and VOCs by photocatalytic oxidation.
Authors and Affiliations
HUANG Jianghua|Zhoushan Quality and Technology Supervision and Testing Institute, Zhoushan 316021, China, TAO Hengcong|School of Petrochemical Engineering and Environmental, Zhejiang Ocean University, Zhoushan 316022, China, CHEN Zengliang|The China Petroleum and Chemical Corporation Zhejiang Oil Products Company, Hangzhou 310013, China, ZHOU Mengna|Zhoushan Quality and Technology Supervision and Testing Institute, Zhoushan 316021, China, JIANG Na|Zhoushan Quality and Technology Supervision and Testing Institute, Zhoushan 316021, China, CHEN Xianlei*|Zhoushan Quality and Technology Supervision and Testing Institute, Zhoushan 316021, China, ZHANG Xiaodong*|School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China,
Keywords
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- EP ID EP743135
- DOI 10.20078/j.eep.20240508
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