| 纳米Y2O3/TiO2羧甲基纤维素(CMC)负载膜光降解偶氮染料的研究 |
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| 引用本文： | 何晓云,郑曦,陈日耀,陈震.纳米Y2O3/TiO2羧甲基纤维素(CMC)负载膜光降解偶氮染料的研究[J].福建师范大学学报(自然科学版),2005,21(3):31-34. |
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| 作者姓名： | 何晓云 郑曦 陈日耀 陈震 |
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| 作者单位： | 福建师范大学,化学与材料学院,福建,福州,350007 |
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| 摘 要： | 以钛酸丁酯和硝酸钇为原料,采用Sol-Gel法制备Y3 掺杂TiO2纳米粒子.通过XRD、TEM等手段对纳米粒子的结构进行表征,用PL研究粒子光电性能,并用SEM方法测得羧甲基纤维素膜的形貌和厚度.以水相亚甲基蓝溶液的光催化降解反应为实验模型,考察纳米粒子CMC复合膜的光催化活性.结果表明,复合膜明显提高了染料的降解,达到90%以上,其光降解反应属于表观一级反应动力学.
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| 关 键 词： | 光催化剂 复合膜 亚甲基蓝 氧化钇 |
| 文章编号： | 1000-5277（2005）03-0031-04 |
| 收稿时间： | 2005-03-11 |
| 修稿时间： | 2005年3月11日 |
Photodegradation of Azo-dye by Y2O3/TiO2 Loaded on Carboxymethyl Cellulose (CMC) Films |
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| HE Xiao-yun,ZHENG Xi,CHEN Ri-yao,CHEN Zhen.Photodegradation of Azo-dye by Y2O3/TiO2 Loaded on Carboxymethyl Cellulose (CMC) Films[J].Journal of Fujian Teachers University(Natural Science),2005,21(3):31-34. |
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| Authors: | HE Xiao-yun ZHENG Xi CHEN Ri-yao CHEN Zhen |
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| Institution: | College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China |
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| Abstract: | Nanosize TiO_2,Y_2O_3/TiO_2 particles were prepared by the Sol-Gel process. The structure was characterized by means of XRD,TEM. The photoelectric properties of the nanoparticles were studied by PL. The surface and the thickness of the CMC film were measured by SEM. Being a model reaction, the photo-catalytic degradation of methylene blue(MB) with positive charge was investigated in TiO_2,Y_2O_3/TiO_2 nanopowder composite films irradiated by ultraviolet lamp. The results revealed that the degradation process belonged to the first-order kinetic reaction. |
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| Keywords: | photo-catalysis composite film methylene blue yttrium dioxide |
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