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| Hydrothermal synthesis, structure and photocatalytic property of nano-TiO_2-MnO_2 | |
| 作者姓名： | 丁士文 王利勇 张绍岩 周秋香 丁宇 刘淑娟 刘燕朝 康全影 |
| 作者单位： | College of Chemistry and Environmental Science，Hebei University，Baoding 071002 China，College of Chemistry and Environmental Science，Hebei University，Baoding 071002 China，College of Chemistry and Environmental Science，Hebei University，Baoding 071002 China，Langfang Teachers College，Langfang 065000 China，College of Quantity Monitor，Hebei University，Baoding 071002 China，College of Chemistry and Environmental Science，Hebei University，Baoding 071002 China，College of Chemistry and Environmental Science，Hebei University，Baoding 071002 China，College of Chemistry and Environmental Science，Hebei University，Baoding 071002 China |
| 摘 要： | TiCI4 and MnSO4.H2O as raw materials are hydrolyzed stiochiometrically, following the intermediate of oxide hydrating reacts at 150℃, 0.5 MPa in high-pressure reactor, after filtering, washing and drying, nanometric TiO2-MnO2 (Ti1-xMnxO2) is prepared. The effects of the reaction temperature and time on nanometric TiO2-MnO2 are also discussed. XRD shows that the product is TiO2-MnO2 with amorphous phase. After being sintered at above 780℃, it transfers into Ti1-xMnxO2 with a rutile structure. TEM shows that TiO2-MnO2 is the spherical particle. And the average diameter of the particles is 20 nm. The optical absorbance was determined by UV-265 spec-trophotometer after dispersing the sample in the mixture of water and glycerol with the ratio of 1 : 1 equably. It is found that the nano-material possesses the advantages of both nano-TiO2 and nano-MnO2, and it has strong absorption in the UV and visible region. Photodegradation of dyes in an aqueous solution is investigated using nanometricTiO2-MnO2 as a pho |
Hydrothermal synthesis, structure and photocatalytic property of nano-TiO2-MnO2 |
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| DING Shiwen,WANG Liyong,ZHANG Shaoyan ZHOU Qiuxiang DING Yu LIU Shujuan LIU Yanchao & KANG Quanying College of Chemistry and Environmental Science,Hebei University,Baoding ,China, Langfang Teachers College,Langfang ,China, College of Quantity Monitor,Hebei University,Baoding ,China.Hydrothermal synthesis, structure and photocatalytic property of nano-TiO_2-MnO_2[J].Science in China(Chemistry),2003,46(6). | |
| Authors: | DING Shiwen WANG Liyong ZHANG Shaoyan ZHOU Qiuxiang DING Yu LIU Shujuan LIU Yanchao & KANG Quanying College of Chemistry and Environmental Science Hebei University Baoding China Langfang Teachers College Langfang China College of Quantity Monitor Hebei University Baoding China |
| Institution: | 1. College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China 2. Langfang Teachers College, Langfang 065000, China 3. College of Quantity Monitor, Hebei University, Baoding 071002, China |
| Abstract: | TiCl4 and MnSO4·H2O as raw materials are hydrolyzed stiochiometrically, following the intermediate of oxide hydrating reacts at 150℃, 0.5 Mpa in high-pressure reactor, after filtering, washing and drying, nanometric TiO2-MnO2 (Ti1-xMnxO2) is prepared. The effects of the reaction temperature and time on nanometric TiO2-MnO2 are also discussed. XRD shows that the product is TiO2-MnO2 with amorphous phase. After being sintered at above 780℃, it transfers into Ti1-xMnxO2 with a rutile structure. TEM shows that TiO2-MnO2 is the spherical particle. And the average diameter of the particles is 20 nm. The optical absorbance was determined by UV-265 spectrophotometer after dispersing the sample in the mixture of water and glycerol with the ratio of 1︰1 equably. It is found that the nano-material possesses the advantages of both nano-TiO2 and nano-MnO2, and it has strong absorption in the UV and visible region. Photodegradation of dyes in an aqueous solution is investigated using nanometricTiO2-MnO2 as a photocatalyst. The results show that after 60 min illumination, the decolorization rate of the acidic red B and acidic black 234 dye can be as high as 100%. |
| Keywords: | nanometric TiO2-MnO2 chem-adulteration hydrothermal synthesis UV absorption photocatalysis |
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