Sm3+/TiO2催化剂对光催化还原CO2和H2O合成CH3OH的影响

晁显玉; 张宁; 简丽娟

环境化学

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晁显玉, 张宁, 简丽娟. Sm3+/TiO2催化剂对光催化还原CO2和H2O合成CH3OH的影响[J]. 环境化学, 2010, 29(3): 481-485.

引用本文:

晁显玉, 张宁, 简丽娟. Sm3+/TiO2催化剂对光催化还原CO2和H2O合成CH3OH的影响[J]. 环境化学, 2010, 29(3): 481-485.

CHAO Xian-yu, ZHANG Ning, JIAN Li-juan. Sm3+/TiO2 CATALYZED PHOTO-SYNTHESIS OF METHANOL FROM CARBON DIOXIDE AND WATER[J]. Environmental Chemistry, 2010, 29(3): 481-485.

Citation:

CHAO Xian-yu, ZHANG Ning, JIAN Li-juan. Sm3+/TiO2 CATALYZED PHOTO-SYNTHESIS OF METHANOL FROM CARBON DIOXIDE AND WATER[J]. Environmental Chemistry, 2010, 29(3): 481-485.

Sm3+/TiO2催化剂对光催化还原CO2和H2O合成CH3OH的影响

1.
青海大学化工学院盐湖系, 西宁, 810016;
2.
南昌大学化学系, 南昌, 330031

Sm3+/TiO2 CATALYZED PHOTO-SYNTHESIS OF METHANOL FROM CARBON DIOXIDE AND WATER

1.
Salt Lake Department of Chemistry Institute, Qinghai University, Xining, 810016, China;
2.
Chemistry Department of Nanchang University, Nanchang, 330031, China

摘要: 采用溶胶-凝胶法和溶胶-乳化-燃烧法制备了Sm3+/TiO2光催化剂,并用X射线衍射(XRD)、透射电镜(TEM)、紫外可见吸收光谱(UV-Vis)、红外光谱(IR)等分析技术表征了催化剂,考察了制备方法、离子掺杂量等对催化剂光催化还原CO2和H2O合成CH3OH实验的影响.实验结果表明,掺杂后的催化剂颗粒更均匀,比表面相应增加,溶胶-乳化-燃烧法制备的催化剂晶粒更小,比表面积更大,光催化活性更高.
- 光催化 /
- 二氧化钛 /
- 稀土掺杂 /
- 钐 /
- 甲醇
Abstract: Photocatalytical reduction of carbon dioxide to methanol in an aqueous solution was investigated.The photocatalysts,Sm3+ doped TiO2,was prepared by sol-gel method or sol-emulsion-combustion method.The catalyst was characterized by X-ray powder diffractometer(XRD)、 TEM、UV-Vis diffuse reflection spectra and IR analysis.The effect of preparation methods and quantity of ions dopant on the activity of the catalyst,was investigated.The doping increased the specific surface area of the catalyst,and made the particles more uniform.The sol-emulsion-combustion method produced catylets with smaller particle size,larger specific surface area and higher photocatalytic activity than the sol-gel method.
- photocatalysis /
- TiO₂ /
- lanthanide doping /
- Sm³⁺ /
- methanol

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晁显玉, 张宁, 简丽娟. Sm3+/TiO2催化剂对光催化还原CO2和H2O合成CH3OH的影响[J]. 环境化学, 2010, 29(3): 481-485.

引用本文:

晁显玉, 张宁, 简丽娟. Sm3+/TiO2催化剂对光催化还原CO2和H2O合成CH3OH的影响[J]. 环境化学, 2010, 29(3): 481-485.

CHAO Xian-yu, ZHANG Ning, JIAN Li-juan. Sm3+/TiO2 CATALYZED PHOTO-SYNTHESIS OF METHANOL FROM CARBON DIOXIDE AND WATER[J]. Environmental Chemistry, 2010, 29(3): 481-485.

Citation:

CHAO Xian-yu, ZHANG Ning, JIAN Li-juan. Sm3+/TiO2 CATALYZED PHOTO-SYNTHESIS OF METHANOL FROM CARBON DIOXIDE AND WATER[J]. Environmental Chemistry, 2010, 29(3): 481-485.

Sm3+/TiO2催化剂对光催化还原CO2和H2O合成CH3OH的影响

1. 青海大学化工学院盐湖系, 西宁, 810016;
2. 南昌大学化学系, 南昌, 330031

收稿日期: 2009-04-21

关键词:

光催化 /
二氧化钛 /
稀土掺杂 /
钐 /
甲醇

摘要: 采用溶胶-凝胶法和溶胶-乳化-燃烧法制备了Sm3+/TiO2光催化剂,并用X射线衍射(XRD)、透射电镜(TEM)、紫外可见吸收光谱(UV-Vis)、红外光谱(IR)等分析技术表征了催化剂,考察了制备方法、离子掺杂量等对催化剂光催化还原CO2和H2O合成CH3OH实验的影响.实验结果表明,掺杂后的催化剂颗粒更均匀,比表面相应增加,溶胶-乳化-燃烧法制备的催化剂晶粒更小,比表面积更大,光催化活性更高.

English Abstract

Sm3+/TiO2 CATALYZED PHOTO-SYNTHESIS OF METHANOL FROM CARBON DIOXIDE AND WATER

1. Salt Lake Department of Chemistry Institute, Qinghai University, Xining, 810016, China;
2. Chemistry Department of Nanchang University, Nanchang, 330031, China

Received Date: 2009-04-21

Keywords:

Abstract: Photocatalytical reduction of carbon dioxide to methanol in an aqueous solution was investigated.The photocatalysts,Sm3+ doped TiO2,was prepared by sol-gel method or sol-emulsion-combustion method.The catalyst was characterized by X-ray powder diffractometer(XRD)、 TEM、UV-Vis diffuse reflection spectra and IR analysis.The effect of preparation methods and quantity of ions dopant on the activity of the catalyst,was investigated.The doping increased the specific surface area of the catalyst,and made the particles more uniform.The sol-emulsion-combustion method produced catylets with smaller particle size,larger specific surface area and higher photocatalytic activity than the sol-gel method.

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Sm3+/TiO2催化剂对光催化还原CO2和H2O合成CH3OH的影响

Sm3+/TiO2 CATALYZED PHOTO-SYNTHESIS OF METHANOL FROM CARBON DIOXIDE AND WATER

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Sm3+/TiO2催化剂对光催化还原CO2和H2O合成CH3OH的影响

English Abstract

Sm3+/TiO2 CATALYZED PHOTO-SYNTHESIS OF METHANOL FROM CARBON DIOXIDE AND WATER

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