| 光助MIL-101(Fe)活化过氧化氢氧化洛克沙胂及同步吸附生成的砷酸根 |
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| 引用本文： | 桑林凤,苏珊珊,高紫崴,金伟,赵雅萍.光助MIL-101(Fe)活化过氧化氢氧化洛克沙胂及同步吸附生成的砷酸根[J].中国环境科学,2022,42(1):203-212. |
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| 作者姓名： | 桑林凤 苏珊珊 高紫崴 金伟 赵雅萍 |
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| 作者单位： | 1. 华东师范大学生态与环境科学学院, 上海 200041;2. 同济大学环境科学与工程学院, 上海 200071 |
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| 基金项目： | 国家自然科学基金资助项目(21377039) |
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| 摘 要： | 采用铁基金属有机框架(MIL-101(Fe))在模拟太阳光下活化过氧化氢氧化降解ROX—吸附去除生成的砷酸根.结果表明,光助MIL-101(Fe)(250mg/L)活化氧化剂H2O2(1.0mmol/L)体系可在120min内实现95.27％的ROX去除率,反应过程中形成的无机砷酸盐(As(Ⅴ))会吸附在MIL-101...
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| 关 键 词： | 洛克沙胂 铁基金属有机框架 过氧化氢 吸附 |
| 收稿时间： | 2021-05-20 |
Photoassisted MIL-101(Fe) activated hydrogen peroxide system for oxidative degradation of roxarsone and adsorption of in-situ formed arsenate |
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| SANG Lin-feng,SU Shan-shan,GAO Zi-wei,JIN Wei,ZHAO Ya-ping.Photoassisted MIL-101(Fe) activated hydrogen peroxide system for oxidative degradation of roxarsone and adsorption of in-situ formed arsenate[J].China Environmental Science,2022,42(1):203-212. |
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| Authors: | SANG Lin-feng SU Shan-shan GAO Zi-wei JIN Wei ZHAO Ya-ping |
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| Institution: | 1. Faculty of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China;2. School of Environmental Science and Engineering, Tongji University, Shanghai 200071, China |
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| Abstract: | An iron-based-organic framework (MIL-101(Fe)) was prepared using a simple one-pot method, aiming to simultaneously oxidize ROX through activating hydrogen peroxide and adsorption formed arsenate under simulated sunlight. The photoassisted MIL-101(Fe) (250mg/L) activating H2O2 (1.0mmol/L) system could remove 95.27% of ROX within 120min. Moreover, the arsenate (As(Ⅴ)) formed in this system could be adsorbed onto the surface of MIL-101(Fe) with 84.14% of the total arsenic removal ratio. The main formed reactive oxygen species ·OH and O2·– free radicals, attacked the As-C bond of ROX, generated As(Ⅴ) and o-nitrophenol compounds and accelerated the removal process. The actual environment water matrix significantly promoted the removal ratio of ROX in this system. |
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| Keywords: | roxarsone Fe-based metal-organic framework hydrogen peroxide adsorption |
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