| 新型半导体可见光催化剂纳米锰酸钇 |
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| 引用本文： | 王仕发,杨华,县涛.新型半导体可见光催化剂纳米锰酸钇[J].催化学报,2011,32(7):1199-1203. |
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| 作者姓名： | 王仕发 杨华 县涛 |
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| 作者单位： | 兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,甘肃兰州730050;兰州理工大学理学院,甘肃兰州730050 |
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| 基金项目： | 国家自然科学基金(50962009); 教育部科学技术研究重点项目(209130); 甘肃省自然科学基金(1010RJZA041); 兰州理工大学优秀青年基金(Q200902)~~ |
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| 摘 要： | 采用聚丙烯酰胺凝胶法制备了锰酸钇(YMnO3)纳米颗粒,并运用X射线衍射、扫描电镜和紫外可见漫反射光谱对样品进行了表征.结果表明,制得的YMnO3纳米晶主要为六方钙钛矿结构,兼有少许的正交钙钛矿结构,且颗粒粒度均匀、形貌规整、呈类球形,平均颗粒尺寸约为45 nm.另外,测得YMnO3纳米颗粒的光学带隙值为1.31 eV...
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| 关 键 词： | 聚丙烯酰胺凝胶法 锰酸钇 纳米颗粒 甲基红 光催化活性 |
A Novel Visible-Light-Driven Semiconductor Photocatalyst:Nano-yttrium Manganite |
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| WANG Shifa,YANG Hua,XIAN Tao.A Novel Visible-Light-Driven Semiconductor Photocatalyst:Nano-yttrium Manganite[J].Chinese Journal of Catalysis,2011,32(7):1199-1203. |
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| Authors: | WANG Shifa YANG Hua XIAN Tao |
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| Institution: | WANG Shifa,YANG Hua,XIAN Tao 1State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials,Lanzhou University of Technology,Lanzhou 730050,Gansu,China 2School of Science,China |
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| Abstract: | Yttrium manganite(YMnO3) nanoparticles were prepared by a polyacrylamide gel technique. X-ray diffraction analysis indicates that the as-synthesized YMnO3 nanocrystallites crystallize majorly into a hexagonal perovskite structure and minorly into an orthorhombic perovskite structure without the presence of any other impurities. Scanning electron microscope observation shows that the prepared YMnO3 nanoparticles are regularly spherical in shape and highly uniform in size with an average diameter of about 45 ... |
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| Keywords: | polyacrylamide gel technique yttrium manganite nanoparticles methyl red photocatalytic activity |
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