光催化
生物降解
矿化(土壤科学)
降级(电信)
生物膜
化学
污染物
微生物降解
环境化学
寡养单胞菌
微生物
催化作用
细菌
有机化学
计算机科学
氮气
16S核糖体RNA
遗传学
基因
生物
电信
生物化学
作者
Yilin Dong,Da Xu,Jie Zhang,Qiuwen Wang,Shaoxuan Pang,Guangming Zhang,Luiza C. Campos,Longyi Lv,Xiaoyang Liu,Wenhua Gao,Sun Li,Zhijun Ren,Pengfei Wang
标识
DOI:10.1016/j.jhazmat.2022.130364
摘要
Intimately coupled photocatalysis and biodegradation (ICPB) is an emerging technology that has potential applications in the degradation of bio-recalcitrant pollutants. However, the interaction principles between photocatalysts and biofilms in ICPB have not been well developed. This article covers a cooperative degradation scheme coupling photocatalysis and biodegradation for efficient degradation and mineralization of ciprofloxacin (CIP) using ICPB with B-doped Bi3O4Cl as the photocatalyst. In consequence, a removal rate of ∼95 % is reached after 40 d. The biofilms inside the ICPB carriers can mineralize the photocatalytic products, thus improving the removal rate of total organic carbon (TOC) by more than 20 %. Interior biofilms are not destroyed by CIP or photocatalysis, and they adapt to ICPB of CIP by enriching in Pseudoxanthomonas, Ferruginibacter, Clostridium, Stenotrophomonas and Comamonas and reconstructing their microbial communities using energy produced by the light-excited photoelectrons. Furthermore, this research gives new opinion into the degradation principles of the ICPB system.
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