Influence of humic substances on the degradation of brominated flame retardants by the supported oxidation catalysts

2015 Fiscal Year Final Research Report

• Project/Area Number: 25241017
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Environmental engineering and reduction of environmental burden
• Research Institution: Hokkaido University
• Principal Investigator: FUKUSHIMA Masami 北海道大学, 工学(系)研究科(研究院), 准教授 (40344113)
• Co-Investigator(Kenkyū-buntansha): SASAKI Masahide 国立研究開発法人産業技術総合研究所, 生物プロセス研究部門, 研究グループリーダー (60357126) ; KURAMITSU Hideki 富山大学, 大学院理工学研究部(理学), 教授 (70397165)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 環境材料 / 生体機能利用 / 水質汚濁・土壌汚染防止・浄化 / 触媒・化学プロセス / 超分子化学

Outline of Final Research Achievements

The purpose of the present study is to develop the supported catalysts that can selectively and efficiently degrade bromophenols in the presence of humic acids, which can serve as inhibitors for oxidative degradation of organic pollutants. First, to remove humic acids from the active sites in the catalysts, a mesoporous silica-supported iron(III)-porphyrin catalyst was synthesized. Bromophenols were selectively degraded by this catalyst, even in the presence of 50 mg/L humic acid. In addition, ionic liquid was modified on the silica-coated magnetite and an iron(III)-porphyrin catalyst was then introduced into this support. More than 50% of bromophenols was mineralized to CO2 by using this supported catalyst.

Free Research Field

環境化学、触媒化学、分析化学