| 溶胶凝胶法制备LaMn1-XVXO3及光催化氧化性能 |
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| 引用本文： | 陈海锋,唐培松,童艳花,徐敏虹,潘国祥.溶胶凝胶法制备LaMn1-XVXO3及光催化氧化性能[J].稀有金属材料与工程,2018,47(S2):62-65. |
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| 作者姓名： | 陈海锋 唐培松 童艳花 徐敏虹 潘国祥 |
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| 作者单位： | 湖州师范学院材料化学系,湖州师范学院材料化学系,湖州师范学院材料化学系,湖州师范学院材料化学系,湖州师范学院材料化学系 |
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| 基金项目： | 国家自然科学基金资助(21607041)和浙江省教育厅一般科研项目(Y201737320) |
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| 摘 要： | 以La(NO3)2、MnC4H6O2、柠檬酸和乙二醇(EG)为主要原料,NH4VO3为掺杂试剂,采用溶胶凝胶法制备LaMnO3和LaMn1-XVXO3粉体。采用XRD进行晶体结构表征；采用甲基橙(MO)模拟污水,进行光催化降解实验。研究了煅烧温度、催化剂用量和掺杂量对光催化氧化降解率的影响,讨论MO降解的动力学规律。结果表明700-900 ℃煅烧温度不影响LaMnO3晶体结构和光催化氧化降解率；掺杂量影响LaMn1-XVXO3晶体结构,光催化氧化降解率随着掺杂量增加而呈下降趋势；光催化氧化实验中,LaMn1-XVXO3粉体效果高于LaMnO3,两者均符合一级动力学方程。
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| 关 键 词： | 溶胶凝胶法 LaMn1-XVXO3 LaMnO3 光催化氧化 |
| 收稿时间： | 2017/12/8 0:00:00 |
| 修稿时间： | 2017/12/8 0:00:00 |
Preparation and Photocatalytic Oxidation of LaMn1-XVXO3 by Sol-Gel Method |
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| Chen Haifeng,Tang Peisong,Tong Yanhu,Xu Minhong and Pan Guoxiang.Preparation and Photocatalytic Oxidation of LaMn1-XVXO3 by Sol-Gel Method[J].Rare Metal Materials and Engineering,2018,47(S2):62-65. |
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| Authors: | Chen Haifeng Tang Peisong Tong Yanhu Xu Minhong and Pan Guoxiang |
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| Affiliation: | Huzhou University,Huzhou University,Huzhou University,Huzhou University,Huzhou University |
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| Abstract: | Using La(NO3)2, MnC4H6O2, citric acid and ethylene glycol (EG), LaMnO3and LaMn1-XVXO3powers were prepared by Sol-gel with dopant NH4VO3. The cayalst were characterized by XRD and used methy orange (MO) as object on photocatalytic oxidation experiment. And effect of heat temperature, cayalyst mass and dopant amount were discussed on degradation rate of MO respectively. The kinetic equations of the process of MO photodegradation were explored. The results show that crystal structure and photocatalytic oxidation degradation rate of MO by LaMnO3 had been not affect by calcination temperature higher than 700 oC; the photocatalytic oxidation degradation rate of MO by LaMn1-XVXO3decreased with the increase of the doping amount due to effect of V ion on LaMn1-XVXO3crystal structure; the catalysts were followed first-order kinetic. |
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| Keywords: | Sol-gel method LaMn1-XVXO3 LaMnO3 Photocatalytic oxidation |
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