| TiO2纳米管阵列膜光催化降解苯胺 |
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| 引用本文： | 李晓东,朱元成,潘素娟,王长青. TiO2纳米管阵列膜光催化降解苯胺[J]. 化工进展, 2012, 31(3): 558-561,573 |
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| 作者姓名： | 李晓东 朱元成 潘素娟 王长青 |
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| 作者单位： | 天水师范学院新型分子材料设计与功能重点实验室,甘肃天水741001／天水师范学院生命科学与化学学院,甘肃天水741001 |
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| 基金项目： | 国家自然科学基金，天水师范学院重点学科基金 |
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| 摘 要： | 利用TiO2纳米管阵列光催化降解含苯胺水样,考察了影响苯胺降解率的各种因素。结果表明,在照射光源波长254 nm,反应时间120 min和苯胺水溶液pH=9时,TiO2纳米管阵列光催化氧化苯胺的效果最好,苯胺降解率达到87%;另外在苯胺水样中加入含Fe3+、Cu2+的金属盐和少量的H2O2氧化剂后,对TiO2纳米管阵列的催化活性具有促进作用,其苯胺降解率分别提高了42%、31%和19%。探讨了TiO2纳米管阵列光催化降解苯胺的反应机理。
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| 关 键 词： | TiO2纳米管阵列 光催化氧化 苯胺 降解率 |
Photocatalytic degradation aniline by TiO_2 nanotube arrays film |
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| LI Xiaodong,ZHU Yuancheng,PAN Sujuan,WANG Changqing. Photocatalytic degradation aniline by TiO_2 nanotube arrays film[J]. Chemical Industry and Engineering Progress, 2012, 31(3): 558-561,573 |
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| Authors: | LI Xiaodong ZHU Yuancheng PAN Sujuan WANG Changqing |
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| Affiliation: | 1,2(1Key Laboratory for New Molecule Material Design and Function of Gansu,Tianshui 741001,Gansu,China; 2College of Life Science and Chemistry,Tianshui Normal University,Tianshui 741001,Gansu,China) |
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| Abstract: | In this paper,the TiO2 nanotube arrays were successfully applied to photocatalytic degradation aniline.The factors that influence photocatalytic degradation aniline were also investigated.The results showed that the optimal reaction condition is UV wavelength irradiation of 254 nm,reaction time of 120 min and pH of 9,under which the ratio of degradation of aniline reached 87%.Furthermore,the TiO2 nanotube arrays’ photocatalytic degradation activity was improved validly when Fe3+,Cu2+ and H2O2 oxides were added into the reaction system,and the degradation rate was improved by 42%,31% and 19%.Possible mechanisms for photocatalytic degradation aniline with TiO2 nanotube were proposed. |
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| Keywords: | titanium oxide nanotube arrays photocatalytic oxidation aniline degradation rate |
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