| 磁性微球负载光催化剂失活特性及再生方法研究 |
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| 引用本文： | 白先群,黄耀峰,朱开梅,顾生玖.磁性微球负载光催化剂失活特性及再生方法研究[J].环境科学与技术,2009,32(9). |
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| 作者姓名： | 白先群 黄耀峰 朱开梅 顾生玖 |
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| 作者单位： | 桂林医学院,广西,桂林,541004 |
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| 基金项目： | 广四自然科学基金资助，桂林市科技攻关项目 |
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| 摘 要： | TiO2/SiO2/Fe3O4在连续使用过程中存在失活现象并表现出吸附能力的降低,在实验基础上提出了超声波在线再生的解决方案;测试结果表明,TiO2/SiO2/Fe3O4在重复使用10次及连续使用130h条件下可保持其催化活性不变。
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| 关 键 词： | 磁性微球 失活现象 超声波分散 再生 |
Characteristics of Deactivation and Regeneration of a Novel Magnetic Photocatalyst |
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| BAI Xian-qun,HUANG Yao-feng,ZHU Kai-mei,GU Sheng-jiu.Characteristics of Deactivation and Regeneration of a Novel Magnetic Photocatalyst[J].Environmental Science and Technology,2009,32(9). |
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| Authors: | BAI Xian-qun HUANG Yao-feng ZHU Kai-mei GU Sheng-jiu |
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| Institution: | Guilin Medical University;Guilin 541004;China |
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| Abstract: | For the first time,the adsorptive amounts of organic compounds on TiO2/SiO2/Fe3O4 in UV-irradiation process and the adsorption expression between TiO2/SiO2/Fe3O4 and residual organic compounds were obtained by a modified menstruation.It was proved that the specific adsorption of compounds on TiO2/SiO2/Fe3O4 during the irradiation period was different from that during dark period.The prime reason for deactivation of TiO2/SiO2/Fe3O4 in process was particle aggregation.Ultrasonic dispersion as an on-site regen... |
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| Keywords: | magnetic microsphere deactivation ultrasonic dispersion regeneration |
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