| TiO_2纳米光催化剂的低温制备及其性能 |
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| 引用本文： | 李慧泉,张颖,崔玉民,张文保.TiO_2纳米光催化剂的低温制备及其性能[J].石油化工,2011,40(4):439-443. |
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| 作者姓名： | 李慧泉 张颖 崔玉民 张文保 |
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| 作者单位： | 阜阳师范学院化学化工学院;南京大学化学系介观化学教育部重点实验室; |
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| 基金项目： | 安徽省科技计划项目(090518026); 安徽省高校省级自然科学研究项目(KJ2010A254,KJ2010B149); 安徽省高校省级教学研究项目(2010JYXM04,2010JYXM19); 阜阳师范学院自然科学研究项目(2008LQ14) |
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| 摘 要： | 采用水热法低温制备了大比表面积的纯金红石型(R)和纯锐钛矿型(A)TiO2纳米光催化剂。采用XRD,TEM,HRTEM,UV-Vis DRS,BET等方法对纳米光催化剂进行了表征;考察了纳米光催化剂的可见光活性和紫外光分解水产氢活性。实验结果表明,蒸馏水作为反应介质合成了纯TiO2(R),而无水乙醇作为反应介质合成了纯TiO2(A);纳米TiO2(R)和TiO2(A)颗粒结晶度良好,形貌分别为棒形和六角形;所制得的TiO2(R)在可见光区域比商品纳米TiO2(P25)表现出更强的光吸收性能;在可见光照射下,TiO2(R)对甲基橙溶液的脱色率达到72.7%(光照6.0h),明显高于P25的47.8%;在紫外光照射下,TiO2(A)的光分解水产氢速率为24.2μmol/h,略低于P25的25.8μmol/h。
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| 关 键 词： | 二氧化钛光催化剂 光分解水 产氢 甲基橙脱色 |
Low-Temperature Preparations and Properties of TiO_2 Nano-Photocatalysts |
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| Li Huiquan,Zhang Ying,Cui Yumin,Zhang Wenbao.Low-Temperature Preparations and Properties of TiO_2 Nano-Photocatalysts[J].Petrochemical Technology,2011,40(4):439-443. |
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| Authors: | Li Huiquan Zhang Ying Cui Yumin Zhang Wenbao |
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| Affiliation: | Li Huiquan1,2,Zhang Ying1,Cui Yumin1,Zhang Wenbao1(1.School of Chemistry and Chemical Engineering,Fuyang Normal College,Fuyang Anhui 236041,China,2.Laboratory of Mesoscopic Materials Science,Department of Chemistry,Nanjing University,Nanjing Jiangsu 210093,China) |
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| Abstract: | Rutile(R) and anatase(A) TiO2 nano-photocatalysts with high specific surface area were prepared by hydrothermal method at low-temperature,and characterized by means of XRD,TEM,HRTEM,UV-Vis DRS and BET.Activities of the prepared nano-photocatalysts were evaluated by decolorization of methyl orange solution under visible light.The performances of the prepared nano-photocatalysts and the commercial TiO2 catalyst(P25) in hydrogen production through water photodecomposition under UV irradiation were investigated... |
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| Keywords: | titania photocatalyst water photodecomposition hydrogen production methyl orange decolorization |
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