| pH值对水热合成纳米Bi2O3 光催化性能的影响 |
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| 引用本文： | 孙彤,高杰,穆柏春. pH值对水热合成纳米Bi2O3 光催化性能的影响[J]. 石油化工高等学校学报, 2010, 23(1): 6-9. DOI: 10.3696/j.issn.1006-396X.2010.01.002 |
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| 作者姓名： | 孙彤 高杰 穆柏春 |
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| 作者单位： | 1.渤海大学化学化工学院, 辽宁锦州121000;
2.辽宁工业大学材料与化学工程学院, 辽宁锦州121001 |
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| 基金项目： | 辽宁省自然科学基金资助项目(20062193) |
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| 摘 要： | 以Bi(NO3)3溶液为原料,浓氨水为矿化剂,在 pH值为7 .0～10 .0的条件下制备了纳米Bi2O3粉体。以样品对水中罗丹明 B的光催化降解性能为评价指标,对样品的光催化性能进行了评价。结果表明,样品对水中罗丹明B的光催化降解反应为表观一级反应。p H值为 8 .5时,样品的光催化性能最佳。XRD、TEM和 IR表征结果表明,样品中均有Bi2O3、N H4NO3晶体生成,随着 pH值的增加,样品中 Bi2O3晶体含量增加,发育逐渐完好。纳米Bi2O3粉体为球形或条形晶粒,彼此键联成网。p H为 8 .5时,纳米网更加细密,网丝均匀。
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| 关 键 词： | 纳米Bi２O３ pH 水热合成法 光催化 |
| 收稿时间： | 2009-03-01 |
Influence of pH on Photocatalytic Performances of Nanometer Bismuth Oxide Powders Prepared by Hydrothermal Synthesis Method |
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| SUN Tong,GAO Jie,MU Bai-chun. Influence of pH on Photocatalytic Performances of Nanometer Bismuth Oxide Powders Prepared by Hydrothermal Synthesis Method[J]. Journal of Petrochemical Universities, 2010, 23(1): 6-9. DOI: 10.3696/j.issn.1006-396X.2010.01.002 |
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| Authors: | SUN Tong GAO Jie MU Bai-chun |
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| Affiliation: | 1. College of Chemistry and Chemical Engineering;Bohai University;Jinzhou Liaoning 121000;P.R.China;2.College of Material and Chemical Engineering;Liaoning University of Technology;Jinzhou Liaoning 121001;P.R.China |
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| Abstract: | Nanometer bismuth oxide powders were prepared by hydrothermal synthesis method which used bismuth nitrate solutions as crude material,strong aqua ammonia as mineralizerd and chose pH in the range of 7~10. The photocatalytic performances of the samples were estimated by degrading Rhodamine B. The results show that the reaction of photocatalytic degradation of Rhodamine B follows the surface first law. When pH is 8.5,the photocatalytic performance is the optimal. Results of X-ray diffraction (XRD),Transmissio... |
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| Keywords: | Nanometer bismuth oxide pH Hydrothermal synthesis method Photocatalytic |
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