| 新型等离子体光催化剂Au/Cd2Nb2O7的制备和性能研究 |
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| 引用本文： | 黄彩进,王顺文.新型等离子体光催化剂Au/Cd2Nb2O7的制备和性能研究[J].武汉理工大学学报,2011(10):7-11. |
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| 作者姓名： | 黄彩进 王顺文 |
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| 作者单位： | 福州大学光催化研究所国家重点实验室培育基地; |
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| 基金项目： | 国家重大基础发展计划“973”项目(2007CB613306) |
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| 摘 要： | 通过沉积-沉淀法将纳米Au颗粒负载于宽带隙的Cd2Nb2O7光催化剂上,利用纳米金的表面等离子体效应,使其具有可见光响应。样品通过X射线粉末衍射(XRD)、透射电镜(TEM)、紫外-可见漫反射(UV-Vis DRS)、X射线光电子能谱(XPS)和液体荧光(PL)等表征了其晶相结构、形貌、光吸收性能、表面化学态和活性物种。结果表明,催化剂中的金是以金属态的形式存在,其粒径大约为5nm,并且在载体表面的分散性良好;催化剂在可见光区540nm处有明显的Au纳米粒子的表面等离子体共振吸收峰。光催化降解罗丹明B结果表明所合成的Au-Cd2Nb2O7具有良好的可见光光催化活性,同时对其可能的光催化降解机理也进行了探讨。
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| 关 键 词： | 沉积-沉淀法 Au纳米颗粒 表面等离子体效应 铌酸盐 光催化 |
Synthesis and Performance of Novel Au/Cd_2Nb_2O_7 Plasmonic Photocatalyst |
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| HUANG Cai-jin,WANG Shun-wen.Synthesis and Performance of Novel Au/Cd_2Nb_2O_7 Plasmonic Photocatalyst[J].Journal of Wuhan University of Technology,2011(10):7-11. |
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| Authors: | HUANG Cai-jin WANG Shun-wen |
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| Affiliation: | HUANG Cai-jin,WANG Shun-wen(State Key Laboratory Breeding Base of Photocatalysis,Research Institute of Photocatalysis,Fuzhou University,Fuzhou 350002,China) |
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| Abstract: | A novel deposition-precipitation method was successfully developed to loading Au nanoparticles on the surface of Cd2Nb2O7 photocatalyst with a wide band-gap.The as-prepared photocatalyst exhibited visible light response properties due to the Surface Plasmon Resonance(SPR) of Au nanoparticles.The crystalline structure,morphology,photoabsorption performance,surface chemical state and active species of the as-synthesized sample were characterized by X-ray powder diffraction(XRD),UV-Vis diffuse reflectance spec... |
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| Keywords: | deposition-precipitation method Au nanoparticles surface plasmon resonance niobate photocatalysis |
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