g-C3N4可见光-臭氧催化氧化降解二苯甲酮-4

ZHANG Qiuya, XU Kailin,XU Jun,WANG Liping, BO Yiming

Journal of ChangZhou University(Natural Science Edition)(2022)

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Abstract
二苯甲酮-4(Benzophenone-4,BP-4)是常用的有机防晒剂,广泛存在于环境介质,对人体健康和生态安全产生严重威胁.分别考察单一g-C3N4光催化和臭氧氧化降解BP-4的最佳反应条件,探明光催化臭氧氧化耦合工艺对BP-4的去除效能,并对降解溶液生态风险进行评估.结果表明,单一g-C3N4光催化和单一臭氧氧化技术对B P-4去除率分别为53.3% 和32.4%;光催化臭氧氧化耦合技术对BP-4降解具有协同作用,去除率达79.6%,且符合准一级反应动力学.BP-4降解溶液的发光菌抑制率增强,具有潜在生态风险.
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