An article Debromination of polybrominated diphenyl ethers (PBDEs) by palladized zerovalent zinc particles: Influence factors, pathways and mechanism WOS:000536175700092 published article about BROMINATED FLAME RETARDANTS; REDUCTIVE DEBROMINATION; DECHLORINATION; KINETICS; SOIL; BIODEGRADATION; DEGRADATION; CORROSION; EXPOSURE; SYSTEMS in [Xu, Yongye; Liang, Chenghao; Zhang, Taiping; Wang, Rui; Huang, Kaibo; Dang, Zhi; Yin, Hua; Lu, Guining] South China Univ Technol, Sch Environm & Energy, Guangzhou 510006, Peoples R China; [Zhang, Taiping; Dang, Zhi; Yin, Hua; Lu, Guining] Minist Educ, Key Lab Pollut Control & Ecosyst Restorat Ind Clu, Guangzhou 510006, Peoples R China; [Tao, Xueqin; Pan, Zhaoxi] Zhongkai Univ Agr & Engn, Sch Environm Sci & Engn, Guangzhou 510225, Peoples R China in 2020.0, Cited 40.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8. SDS of cas: 101-84-8
We synthesized a novel material, namely palladized zero-valent zinc (Pd/ZVZ), and investigated its efficiency for the degradation of polybrominated diphenyl ethers (PBDEs). The plated Pd significantly enhances the degradation rate of PBDEs by ZVZ at the optimum loading of 1% by weight. In the Pd/ZVZ system, very few lower BDEs were accumulated during the degradation of 2,2′,4,4′- tetrabromodiphenyl ether (BDE-47) and the final product is diphenyl ether, whereas the ZVZ system only debrominates BDE-47 to di-BDE and further debromination becomes very difficult. The degradation rates of BDEs by ZVZ greatly decreased with decreased bromination level, while in Pd/ZVZ system, the degradation rates of PBDEs did not show a significant difference. These indicate different mechanisms. This was confirmed by investigating the debromination pathways of the PBDEs in both systems. We determined that a H-transfer was the dominant mechanism in the Pd/ZVZ system. In addition, the reactivity of Pd/ZVZ to BDE-47 is pH-independent, which has a great advantage for various applications over ZVZ alone. Our study provides a new approach for the remediation of the PBDEs pollution. (C) 2020 Elsevier Ltd. All rights reserved.
SDS of cas: 101-84-8. About Diphenyl oxide, If you have any questions, you can contact Xu, YY; Liang, CH; Zhang, TP; Tao, XQ; Wang, R; Huang, KB; Pan, ZX; Dang, Z; Yin, H; Lu, GN or concate me.
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