| 水中有机物对紫外光催化还原溴酸盐的影响 |
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| 引用本文： | 胡航恺,徐浩丹,卢晓辉,王立章,马军,宋爽,汪达.水中有机物对紫外光催化还原溴酸盐的影响[J].中国环境科学,2022,42(3):1164-1172. |
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| 作者姓名： | 胡航恺 徐浩丹 卢晓辉 王立章 马军 宋爽 汪达 |
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| 作者单位： | 1. 浙江工业大学环境学院, 浙江省工业污染微生物控制技术重点实验室, 浙江 杭州 310032;2. 哈尔滨工业大学环境学院, 城市水资源与水环境国家重点实验室, 黑龙江 哈尔滨 150006;3. 中国矿业大学环境与测绘学院, 江苏 徐州 221116 |
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| 基金项目： | 国家自然科学基金资助项目(22076168,52000158)；;浙江省自然科学基金青年基金资助项目(LQ21E080011)；;第69批中国博士后科学基金面上资助项目(2021M693414)； |
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| 摘 要： | 通过一步水热法制备了 TiO2与TiOF2用于考察不同水质条件下紫外光催化控制还原BrO3-的效率.结果表明,TiO2在纯水中还原BrO3-的效率(120min还原78.5％)显著高于TiOF2(120min还原57.0％).但当体系中存在难降解有机物(莠去津)或天然有机物(腐殖酸)时,TiOF2还原BrO3-的效率则...
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| 关 键 词： | UV光催化 溴酸盐控制 TiOF2 难降解有机物 天然有机物 |
| 收稿时间： | 2021-08-05 |
Influencing of aquatic organic matters on UV photocatalytic reduction efficiency of bromate |
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| HU Hang-kai,XU Hao-dan,LU Xiao-hui,WANG Li-zhang,MA Jun,SONG Shuang,WANG Da.Influencing of aquatic organic matters on UV photocatalytic reduction efficiency of bromate[J].China Environmental Science,2022,42(3):1164-1172. |
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| Authors: | HU Hang-kai XU Hao-dan LU Xiao-hui WANG Li-zhang MA Jun SONG Shuang WANG Da |
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| Institution: | 1. Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310032, China;2. State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China;3. School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China |
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| Abstract: | TiO2 and TiOF2 were prepared by a one-step hydrothermal method and their efficiencies of BrO3− reduction under UV photocatalysis were investigated in water matrix. In pure water, 78.5% of BrO3− was reduced by UV/TiO2 after 120min, which was significantly higher than that on UV/TiOF2 (57.0%). While in water contained refractory organic pollutant (atrazine, ATZ) or natural organic matter (humic acid, HA), the results were opposite to those in pure water. UV/TiOF2 achieved superior simultaneous ATZ degradation and BrO3− reduction when refractory organic pollutant co-existed with BrO3−. The ATZ degradation and BrO3− reduction rates reached 48.5% and 99.0% after 120min when 20 μmol/L ATZ and 20μmol/L BrO3− co-existed in the solution. The BrO3− reduction efficiencies of UV/TiO2 and UV/TiOF2were 13.8% and 29.8% when 5mg/L of HA was added into the solution, demonstrating that compared with UV/TiO2, UV/TiOF2 revealed robust BrO3− reduction ability in the complex water constituents. TiOF2 presented stronger resistance to water matrix applied in UV photocatalytic advanced water purification system. |
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| Keywords: | UV photocatalysis bromate control TiOF2 refractory organic pollutant natural organic matter |
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