在线阅读 --自然科学版 2017年5期《纳米片状BiOI的制备及可见光催化性能研究》
纳米片状BiOI的制备及可见光催化性能研究--[在线阅读]
张国强, 刘碧玉, 贾密英, 张艳峰, 魏雨
河北师范大学 化学与材料科学学院, 河北 石家庄 050024
起止页码: 413--418页
DOI: 10.13763/j.cnki.jhebnu.nse.2017.05.008
摘要
以硝酸铋和碘化钾为原料,通过加入少量赖氨酸,采用低温水解法制备了碘氧化铋(BiOI)粉体.采用X射线衍射、扫描电子显微镜、紫外-可见漫反射光谱等仪器对样品进行了表征,分析了样品的晶体结构、形貌、紫外-可见吸收光谱特征.研究结果表明,该方法合成的BiOI为片状,厚度约50nm.合成过程中赖氨酸的加入,改变了BiOI的晶体结构并减小了晶体尺寸.降解罗丹明B的光催化实验表明,赖氨酸的添加有效地提高了BiOI的可见光催化性能.

Preparation and Visible Light Catalytic Performance of Nanosized BiOI
ZHANG Guoqiang, LIU Biyu, JIA Miying, ZHANG Yanfeng, WEI Yu
College of Chemistry and Material Sciences, Hebei Normal University, Hebei Shijiazhuang 050024, China
Abstract:
In this paper,with bismuth nitrate and potassium iodide as raw materials,the nanosized BiOI was prepared by adding a small amount of lysine through a low-temperature hydrolysis method.The crystal structure and morphology of samples were characterized by X-ray diffraction (XRD),scanning electron microscopy (SEM) and UV-vis diffuse reflectance spectroscopy (UV-vis DRS).The results showed that the as-prepared BiOI had nanoplate morphology with the thickness about 50nm.The addition of lysine changed the crystal structure of BiOI and reduced the crystal size.The results of photocatalytic degradation of rhodamine B show that the addition of lysine effectively enhanced the visible light photocatalytic activity of BiOI.

收稿日期: 2016-08-09
基金项目: 国家自然科学基金(11179029);河北省高层次人才资助项目(C201400528)

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