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纳米薄片状氯氧化铋的制备及其热解行为
作者:吴飞飞1 2 3 马春阳1 焦金龙4 肖清贵2 3 张笛2 3 徐红彬2 3 张懿2 3 
单位:1. 东北石油大学机械科学与工程学院 黑龙江 大庆 163318 2. 中国科学院过程工程研究所 湿法冶金清洁生产技术国家工程实验室 北京 100190 3. 中国科学院绿色过程与工程重点实验室 北京 100190 4. 中国石油大庆油田有限责任公司试油试采分公司 黑龙江 大庆 163412 
关键词:氯氧化铋 纳米薄片 水解法 热解行为 
分类号:TQ124.4
出版年,卷(期):页码:2016,44(7):948-952
DOI:10.14062/j.issn.0454-5648.2016.07.05
摘要:
通过铋盐水解法制备了薄片状氯氧化铋(BiOCl)晶体。采用X射线衍射仪、热场发射扫描电子显微镜、高分辨场发射透射电子显微镜和热重分析仪表征了晶体产物的物相、晶体形貌和热解行为,研究了晶体的光催化性能。结果表明:水解法可制备纳米薄片状氯氧化铋晶体,其厚度约为70 nm,截面尺寸约300 nm×500 nm;氯氧化铋晶体在600 ℃开始分解,分解中间产物为BixCly、BixOyClz、Bi2O3,于800 ℃分解结束,最终分解产物为Bi3O4Cl。
Bismuth oxychloride (BiOCl) nano-flakes were prepared with hydrolyzing bismuth salt in the presence of hydrochloric acid. The phase, morphologies and thermal decomposition behavior of the as-synthesized BiOCl were characterized by X-ray diffraction, thermal field emission scanning electron microscopy, high-resolution field emission transmission electron microscopy and thermogravimetric analysis, respectively. The photocatalytic activity of crystal sample was investigated. The results show that the nanoflakes with a thickness of approximately 70 nm and a cross section of approximately 300 nm×500 nm can be prepared by a hydrolysis method. The crystals are decomposed at > 600 ℃, and the final product at 800 ℃ is Bi3O4Cl. The intermediate product during the decomposition is BixCly, BixOyClz, Bi2O3.
基金项目:
国家自然科学基金项目(21376251,51474072,21406233)。
作者简介:
吴飞飞(1989—),女,硕士研究生。
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