Bi系催化剂光催化氧化VOCs研究进展

Research Progress of Bi-Based Catalysts for Photocatalytic Oxidation of VOCs

挥发性有机污染物是一类对人体有毒有害的大气污染物。光催化降解技术由于反应条件温和、矿化率高和成本较低等优点,被广泛地应用于挥发性有机污染物的降解。光催化技术的关键在于催化剂成份的配伍、结构调控和稳定性能等。本论文综述了Bi系催化剂的结构和适合的禁带宽度,并通过掺杂、复合等手段来提高其光催化性能,并提出了研究方向。

Volatile organic compounds (VOCs) have caused widespread concern about the harm to the en-vironment. Photocatalytic technology has become a popular method for degrading VOCs due to its simple method, high mineralization rate, and lower cost. Based on the introduction of VOCs and the mechanism of photocatalytic degradation, the applications of Bi-based catalysts are briefly described. Bi-based catalysts are ideal materials for degrading VOCs due to their unique layered structure and suitable forbidden band width. Through doping, recombination, etc. in order to improve its catalytic performance, some ideas for the future research direction of pho-tocatalytic degradation of VOCs are put forward.