Degradation of bisphenol F by peroxymonosulfate activated with palladium-based catalysts  

作　　者：Xiaomei Zhou Minghui Li Jifei Hou Jingya Sun Shourong Zheng Yingjun Chen Qingxin Guan 

机构地区：[1]College of Chemistry,Nankai University,Tianjin 300071,China [2]School of Environment,Nanjing University,Nanjing 210023,China

出　　处：《Journal of Environmental Sciences》2025年第4期54-65,共12页环境科学学报(英文版)

基　　金：supported by the National Natural Science Foundation of China(NSFC)(No.21978137).

摘　　要：In this study,supported Pd catalysts were prepared and used as heterogeneous catalysts for the activation of peroxymonosulfate(PMS)which successfully degrade bisphenol F(BPF).Among the supported catalysts(i.e.,Pd/SiO_(2),Pd/CeO_(2),Pd/TiO_(2)and Pd/Al2O3),Pd/TiO_(2)exhibited the highest catalytic activity due to the high isoelectric point and high Pd0 content.Pd/TiO_(2)prepared by the deposition method leads to high Pd dispersion,which are the key factors for efficient BPF degradation.The influencing factors were investigated during the reaction process and two possible degradation pathways were proposed.Density functional theory(DFT)calculations demonstrate that stronger BPF adsorption and BPF degradation with lower reaction barrier occurs on smaller Pd particles.The catalytic activities are strongly dependent on the structural features of the catalysts.Both experiments and theoretical calculations prove that the reaction is actuated by electron transfer rather than radicals.

关 键 词：Supported Pd catalysts Peroxymonosulfate activation Bisphenol F DFT calculations Mechanism 

分 类 号：X703[环境科学与工程—环境工程]