| 紫外光照射磷钨酸制备金纳米颗粒 |
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| 引用本文： | 李卫东. 紫外光照射磷钨酸制备金纳米颗粒[J]. 宿州学院学报, 2010, 25(11). DOI: 10.3969/j.issn.1673-2006.2010.11.008 |
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| 作者姓名： | 李卫东 |
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| 作者单位： | 宿州学院继续教育学院 |
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| 基金项目： | 国家自然科学基金，安徽省教育厅自然科学研究重大项目，安徽省教育厅自然科学研究重点项目 |
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| 摘 要： | 以Keggin结构的磷钨酸H3PW12O40为光催化还原剂,以异丙醇为电子牺牲剂,用紫外可见光照射磷钨酸和氯金酸的混合溶液,制备金纳米粒子。采用透射电子显微镜(TEM)、紫外可见吸收光谱(UV-vis)和X射线光电子能谱(XPS)等手段对制备的金纳米颗粒的形貌、粒径大小和结构进行了表征。UV-vis结果表明,随着反应时间的延长,Au的特征吸收峰逐渐红移。制备的Au纳米颗粒有球形、柱形和不规则的多边形,并随着反应时间的延长,粒径逐渐增加,生成的纳米Au为立方面心晶格。
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| 关 键 词： | Au纳米粒子 磷钨酸 紫外光 |
Preparation of Gold Nanoparticles in UV -Irradiated Tungstosilicate Acid Solution |
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| LI Wei-dong. Preparation of Gold Nanoparticles in UV -Irradiated Tungstosilicate Acid Solution[J]. Journal of Shuzhou College, 2010, 25(11). DOI: 10.3969/j.issn.1673-2006.2010.11.008 |
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| Authors: | LI Wei-dong |
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| Affiliation: | LI Wei-dong(School of continuing education; Suzhou University; Suzhou; Anhui 234000; China); |
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| Abstract: | With the phosphotungstic acid(H3PW12O40) of Keggin structure as photocatalytic reductant and the isopropanol as electronic sacrifice agent,using UV visible light to irradiate the solution of H3PW12O40 and HAuCl4 gold nanoparticles can be prepared.The morphology,particle size,and composition of the gold nanoparticles were characterized by transmission electron microscopy(TEM),ultraviolet-visible spectroscopy(UV-vis) and X-ray photoelectron spectra(XPS).TEM images showed the spherical,cylindrical and irregula... |
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| Keywords: | Au nanoparticles phosphotungstic acid UV-vis |
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