| 化学沉淀法制备纳米Fe/TiO2及其光催化活性的研究 |
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| 引用本文： | 陈桂华,葛昌华,潘富友,赵波,杨辉,王明星. 化学沉淀法制备纳米Fe/TiO2及其光催化活性的研究[J]. 人工晶体学报, 2010, 39(2): 433-439 |
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| 作者姓名： | 陈桂华 葛昌华 潘富友 赵波 杨辉 王明星 |
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| 作者单位： | 台州学院医药化工学院,临海,317000;浙江大学纳米科学与技术中心,杭州,310027 |
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| 基金项目： | 浙江省科技计划项目，浙江省教育厅资助项目 |
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| 摘 要： | 以TiCl4为钛前驱体,氨水为沉淀剂,氯化铁为掺杂离子给体,采用化学沉淀法,制备了纯的与铁掺杂的TiO2纳米光催化剂.采用XRD、差热-热重等分析方法对产物进行了表征.通过苯酚水溶液的光催化降解实验研究了样品的光催化性能,考察了Fe3+掺杂量、苯酚溶液的pH值对光催化活性的影响.结果表明:Fe3+掺杂抑制了晶粒长大,细化了晶粒.Fe3+取代晶格中Ti4+的位置或进入间隙位置,引起晶格畸变.适量的Fe3+掺杂能减少光生电子与空穴的复合,提高光催化剂的光催化性能.在本实验条件下,Fe3+掺杂量为0.1 mol;,苯酚溶液的pH为9时,纳米TiO2具有最佳的光催化性能,在20 W 紫外灯照射下降解16 h,降解率达到89.3;.
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| 关 键 词： | 光催化剂 化学沉淀法 苯酚 二氧化钛, |
Preparation and Photocatalytic Activity of Nanoparticle Fe/TiO_2 by Chemical Precipitation Method |
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| CHEN Gui-hua,GE Chang-hua,PAN Fu-you,ZHAO Bo,YANG Hui,WANG Ming-xing. Preparation and Photocatalytic Activity of Nanoparticle Fe/TiO_2 by Chemical Precipitation Method[J]. Journal of Synthetic Crystals, 2010, 39(2): 433-439 |
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| Authors: | CHEN Gui-hua GE Chang-hua PAN Fu-you ZHAO Bo YANG Hui WANG Ming-xing |
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| Affiliation: | CHEN Gui-hua1,GE Chang-hua1,PAN Fu-you1,ZHAO Bo1,YANG Hui2,WANG Ming-xing1(1.School of Pharmaceutical , Chemical Engineering,Taizhou University,Linhai 317000,China,2.Center of Nano-Science , Technology,Zhejiang University,Hangzhou 310027,China) |
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| Abstract: | The pure and Fe-doped TiO2 nanoparticles photocatalyst were prepared by chemical precipitation,using titanium tetrachloride as Ti-precursor,ammonia as precipitant and ferric chloride as doping-ion donor.The samples were characterized by X-ray diffraction(XRD) and thermogravimetry and different thermal analysis(TG-DTA).The photocatalytic activity was evaluated by the photocatalytic decomposition of phenol.The effects of the doping content of Fe3+ and phenol solution pH on the activity were investigated.The r... |
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| Keywords: | photocatalyst chemical precipitation method phenol titanium-dioxide |
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