Fabrication of hollow inorganic fullerene-like BiOBr eggshells with highly efficient visible light photocatalytic activity
Fabrication of hollow inorganic fullerene-like BiOBr eggshells with highly efficient visible light photocatalytic activity
复制标题
具有高效可见光催化活性的空心无机类富勒烯BiOBr蛋壳的制备
DOI：
10.1016/j.matlet.2013.05.041
复制
发表时间：
2013-09
影响因子：
3
通讯作者：
Guan, Hanmin
中科院分区：
文献类型：
--
作者：
Deng, Chonghai;Guan, Hanmin
通过简单的超声辅助阴离子交换反应和随后的热处理过程，已经成功地大规模制备了具有无机富勒烯样结构的新型中空BiOBr蛋壳。用FESEM、TEM、HRTEM、XRD和N2吸附/脱附等温线对产物进行了表征。结果表明，空心蛋壳为纯的四方相BiOBr，平均厚度约为12 nm，开口直径为500-800 nm，深度为400-600 nm。蛋壳的壁是由尺寸约为10 nm的纳米颗粒构成的，具有无机类富勒烯层状结构。晶间中孔的平均孔径为2.8 nm，比表面积为36.56 m2 g-1。提出了BiOBr空心蛋壳的可能形成机制。在可见光照射下降解罗丹明B的实验结果表明，空心BiOBr蛋壳具有良好的光催化活性。
Novel hollow BiOBr eggshells with inorganic fullerene-like structure have been successfully fabricated on a large scale via a facile ultrasound-assisted anion exchange reaction and subsequent heating treatment process. The products have been characterized by FESEM, TEM, HRTEM, XRD and N2adsorption/desorption isotherms. The results reveal that the hollow eggshells possess a pure tetragonal phase BiOBr, with the average thickness of about 12 nm, opening diameters of 500–800 nm and depths of 400–600 nm. The walls of eggshells, owning inorganic fullerene-like layered structure, are constructed by nanograins with size of about 10 nm. The average pore diameter of intercrystal mesopore is 2.8 nm and the specific surface is measured to be 36.56 m2g−1. A possible formation mechanism for BiOBr hollow eggshells is proposed. According to the photodegradation of Rhodamine B under visible light irradiation, the hollow BiOBr eggshells exhibit excellent photocatalytic activity.
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影响因子：
--
作者：
H. Deng;Junwei Wang;Q. Peng;Xun Wang;Yadong Li
通讯作者：
H. Deng;Junwei Wang;Q. Peng;Xun Wang;Yadong Li
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影响因子：
4.3
作者：
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通讯作者：
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影响因子：
1.8
作者：
Hu, HM;Liu, ZP;Qian, YT
通讯作者：
Qian, YT
DOI：
--
发表时间：
--
期刊：
--
影响因子：
--
作者：
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通讯作者：
Lawrence Berkeley;National Laboratory;Natália Queiroz;Luís Fernandes;Fernando Oscar;Ruttkay Pereira
影响因子：
2.3
作者：
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通讯作者：
Guangfang Li;F. Qin;Hao Yang;Zhong Lu;Hongzhe Sun;Rong Chen