| Ni掺杂黄铁矿型FeS2的溶剂热合成及其可见光催化活性 |
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| 引用本文： | 龙飞,张劲,张明月,何金云,武晓鹂,邹正光.Ni掺杂黄铁矿型FeS2的溶剂热合成及其可见光催化活性[J].无机化学学报,2013,29(18). |
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| 作者姓名： | 龙飞 张劲 张明月 何金云 武晓鹂 邹正光 |
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| 作者单位： | 有色金属及材料加工新技术教育部重点实验室, 桂林 541004;桂林理工大学材料科学与工程学院, 桂林 541004;桂林理工大学材料科学与工程学院, 桂林 541004;桂林理工大学材料科学与工程学院, 桂林 541004;有色金属及材料加工新技术教育部重点实验室, 桂林 541004;桂林理工大学材料科学与工程学院, 桂林 541004;有色金属及材料加工新技术教育部重点实验室, 桂林 541004;桂林理工大学材料科学与工程学院, 桂林 541004;有色金属及材料加工新技术教育部重点实验室, 桂林 541004;桂林理工大学材料科学与工程学院, 桂林 541004 |
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| 基金项目： | 国家自然科学基金(No.51162005),国家高技术研究发展计划(No.2012AA050704)资助项目。 |
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| 摘 要： | 以FeSO4·7H2O、Na2S2O3·5H2O和NiSO4·6H2O为原料,采用溶剂热法合成了Ni掺杂的黄铁矿FeS2粉体,利用XRD、XPS、FE-SEM、UV-Vis、拉曼光谱等测试手段对所得产物进行了表征分析。结果表明,掺杂适量的Ni可促进白铁矿FeS2向黄铁矿FeS2的晶型转变。Ni掺杂有利于提高NixFe1-xS2的可见光催化活性,当Ni的掺入量x为0.125时,样品的光催化性能最好。在可见光照射210 min后,亚甲基蓝的降解率为62.8%,与未掺杂FeS2相比,其降解率提高了26.2%。
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| 关 键 词： | 溶剂热合成 FeS2 Ni掺杂 光催化活性 亚甲基蓝 |
Ni-doped FeS2: Solvothermal Synthesis and the Visible-Light Photocatalytic Properties |
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| LONG Fei,ZHANG Jin,ZHANG Ming-Yue,HE Jin-Yun,WU Xiao-Li and ZOU Zheng-Guang.Ni-doped FeS2: Solvothermal Synthesis and the Visible-Light Photocatalytic Properties[J].Chinese Journal of Inorganic Chemistry,2013,29(18). |
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| Authors: | LONG Fei ZHANG Jin ZHANG Ming-Yue HE Jin-Yun WU Xiao-Li and ZOU Zheng-Guang |
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| Institution: | Key Laboratory of Nonferrous Materials and New Processing Technology of Ministry of Education, Guilin, Guangxi 541004, China;School of Materials Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, China;School of Materials Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, China;School of Materials Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, China;Key Laboratory of Nonferrous Materials and New Processing Technology of Ministry of Education, Guilin, Guangxi 541004, China;School of Materials Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, China;Key Laboratory of Nonferrous Materials and New Processing Technology of Ministry of Education, Guilin, Guangxi 541004, China;School of Materials Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, China;Key Laboratory of Nonferrous Materials and New Processing Technology of Ministry of Education, Guilin, Guangxi 541004, China;School of Materials Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541004, China |
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| Abstract: | Ni-doped pyrite FeS2 were synthesized through a solvothermal method using FeSO4·7H2O, Na2S2O3·5H2O and NiSO4·6H2O as raw materials. The products were characterized by X-ray diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), field emission scanning electron microscope (FE-SEM), UV-Vis diffuse reflectance spectra (DRS) and Raman spectroscopy. The results showed that appropriate amount of Ni doping facilitated the transformation of the marcasite to pyrite. After Ni2+ doping, the visible-light-driven photocatalytic performance of the FeS2 was greatly enhanced. Methylene blue (MB) was decomposed 62.8% within 210 min using Ni0.125Fe0.875S2 as photocatalyst, which was 26.2% higher than that of the pristine FeS2. |
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| Keywords: | solvothermal synthesis FeS2 Ni doping photocatalytic activity methylene blue |
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