封面图片
2018年, 第12卷 第5期
Heterogeneous photocatalysis has long been considered to be one of the most promising approaches to tackling the myriad environmental issues. In recent years, semiconductor-based heterogeneous photocatalysis as an advanced oxidation process (AOP) has garnered considerable research interest among various reported techniques and has been extensively explored for the abatement of various organic or inorganic contaminants in water or air under artificial or natural light illumination under ambient conditions. Therefore, it is of particular importance to exploit highly active, selective and durable earth-abundant photocatalysts and deeply understand their underlying photocatalytic degradation mechanisms. However, previous reviews have frequently neglected and placed less emphasis on these crucial principles of photocatalytic degradation reactions. In this review, we first systematically introduced the fundamental principles on the photocatalytic pollutant degradation. Then, the important considerations in the design of photocatalytic degradation systems are carefully addressed, including charge carrier dynamics, catalytic selectivity, photocatalyst stability, pollutant adsorption and photodegradation kinetics. Especially, the underlying mechanisms are thoroughly reviewed, including investigation of oxygen reduction properties and identification of reactive oxygen species and key intermediates. This review in environmental photocatalysis may inspire exciting new directions and methods for designing, fabricating and evaluating photocatalytic degradation systems for better environmental remediation and possibly other relevant fields, such as photocatalytic disinfection, water oxidation, and selective organic transformations.[展开] ...
ISSN 2095-2201N (Print)
ISSN 2095-221X (Online)
CN 10-1013/X
Postal Subscription Code 80-973
原刊名 Frontiers of Environmental Science & Engineering in China 2018 Impact Factor: 3.883