Debromination of decabromodiphenyl ether by organo-montmorillonitesupported nanoscale zero-valent iron: Preparation, characterization and influence factors  

作　　者：Zhihua Pang Mengyue Yan Xiaoshan Jia Zhenxing Wang Jianyu Chen 

机构地区：[1]School of Environmental Science and Engineering, Sun Yat-Sen University [2]South China Institute of Environmental Sciences, Ministry of Environmental Protection

出　　处：《Journal of Environmental Sciences》2014年第2期483-491,共9页环境科学学报（英文版）

基　　金：supported by the National Science and Technology Major Projects of Water Pollution Control andManagement of China (No. 2012ZX07206002)

摘　　要：An organo-montmorillonite-supported nanoscale zero-valent iron material （M-NZVI） was synthesized to degrade decabromodiphenyl ether （BDE-209）. The results showed that nanoscale zero-valent iron had good dispersion on organo-montmoriUonite and was present as a core-shell structure with a particle size range of nanoscale iron between 30-90 nm, characterized by XRD, SEM, TEM, XRF, ICP-AES, and XPS. The results of the degradation of BDE-209 by M-NZVI showed that the efficiency of M-NZVI in removing BDE-209 was much higher than that of NZVI. The efficiency of M-NZVI in removing BDE-209 decreased as the pH and the initial dissolved oxygen content of the reaction solution increased, but increased as the proportion of water in the reaction solution increased.An organo-montmorillonite-supported nanoscale zero-valent iron material （M-NZVI） was synthesized to degrade decabromodiphenyl ether （BDE-209）. The results showed that nanoscale zero-valent iron had good dispersion on organo-montmoriUonite and was present as a core-shell structure with a particle size range of nanoscale iron between 30-90 nm, characterized by XRD, SEM, TEM, XRF, ICP-AES, and XPS. The results of the degradation of BDE-209 by M-NZVI showed that the efficiency of M-NZVI in removing BDE-209 was much higher than that of NZVI. The efficiency of M-NZVI in removing BDE-209 decreased as the pH and the initial dissolved oxygen content of the reaction solution increased, but increased as the proportion of water in the reaction solution increased.

关 键 词：supported nanoscale zero-valent iron organo-montmorillonite decabromodiphenyl ether （BDE-209） degradation influence factors 

分 类 号：TQ242[化学工程—有机化工] X505[环境科学与工程—环境工程]