| Bi-TiO2纳米管阵列的制备及其光催化性能 |
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| 引用本文： | 张忠铭,钟福新,黎燕,莫德清,孟志鹏,王丹宇,朱义年.Bi-TiO2纳米管阵列的制备及其光催化性能[J].桂林工学院学报,2013(4):731-736. |
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| 作者姓名： | 张忠铭 钟福新 黎燕 莫德清 孟志鹏 王丹宇 朱义年 |
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| 作者单位： | [1] 桂林理工大学化学与生物工程学院,广西 桂林541004 [2] 桂林电子科技大学 生命与环境科学学院,广西 桂林541004 [3] 桂林理工大学环境科学与工程学院,广西 桂林541004 |
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| 基金项目： | 国家自然科学基金项目（61264007）;广西科学研究与技术开发计划项目（桂科重1298002-3） |
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| 摘 要： | 以甲基橙光催化降解效率为指标、 Bi（ NO3）3-稀HNO3混合液为电沉积液，利用电化学沉积法探讨铋掺杂二氧化钛纳米管阵列（ Bi-TNTs）的制备条件，通过SEM、 XRD对其结构和形貌进行表征，考察Bi-TNTs光催化降解制糖废水的条件。结果显示，在电压为2.2 V 、0.33 g/L Bi（NO3）3和0.28 mol/L HNO3溶液电沉积4 min条件下制备的Bi-TNTs可以显著提高光催化降解甲基橙及制糖废水的效率。底物pH值对Bi-TNTs光催化活性有较大影响，较强碱性环境中， Bi-TNTs对制糖废水降解率最高，光照25 h制糖废水降解率达到90.24％。
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| 关 键 词： | 电化学沉积 Bi掺杂 二氧化钛 纳米管阵列 光催化 TiO2 |
Preparation and Photocatalytic Properties of Bi-Doped TiO2 Nanotube Arrays |
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| ZHANG Zhong-ming,ZHONG Fu-xin,LI Yan,MO De-qing,MENG Zhi-peng,WANG Dan-yu,ZHU Yi-nian.Preparation and Photocatalytic Properties of Bi-Doped TiO2 Nanotube Arrays[J].Journal of Guilin University of Technology,2013(4):731-736. |
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| Authors: | ZHANG Zhong-ming ZHONG Fu-xin LI Yan MO De-qing MENG Zhi-peng WANG Dan-yu ZHU Yi-nian |
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| Affiliation: | 1. a. College of Chemistry and Bioengineering ; b. College of Environmental Science and Engineering, Guilin U- niversity of Technology, Guilin 541004, China; 2. College of Life and Environmental Science, Guilin University of Electronic Technology, Guilin 541004, China) |
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| Abstract: | The preparation conditions of Bi-doped TiO2 nanotube arrays（ Bi-TNTs） is discussed via electrochem-ical deposition in Bi（NO3）3 and dilute HNO3 mixture, based on photocatalytic degradation efficiency of methyl orange as index.The structure and morphology of Bi-TNTs are characterized by SEM and XRD.The photocata-lytic degradation conditions of sugar wastewater are researched under the Bi-TNTs.The results show that the Bi-TNTs can increase the photocatalytic degradation ratio of methyl orange and sugar wastewater in 0.33 g/L Bi（NO3）3, 0.28 mol/L HNO3 solution, and voltage of 2.2 V for 4 min.pH value of substrate has great effect on photocatalytic activity of Bi-TNTs.In strong alkali conditions, the highest photocatalytic degradation ratio of sugar wastewater is 90.24% in irradiation for 25 h. |
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| Keywords: | electrochemical deposition Bi-doping nanotube arrays photocatalytic |
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