Key Laboratory of Micro-nano Measurement, Manipulation and Physics (Ministry of Education), Department of Physics, Beihang University , Beijing 100191, China.
School of Physics and Electronic Engineering, Taishan University , Taian, Shandong 271021, China.
ACS Appl Mater Interfaces. 2016 Mar;8(10):6662-8. doi: 10.1021/acsami.6b00042. Epub 2016 Mar 3.
BiOCl microstructures that include microspheres stacked by nanosheet and microsized square nanosheets, with a large lateral size of 3-5 μm and a thickness of 35 nm (the side length/thickness ratio is ∼100), are synthesized by a solvothermal method with the assistance of polyvinylpyrrolidone. The exposed face of the large square nanosheet is {001} facet. The BiOCl microstructures show good photocatalytic activity toward decomposition of Rhodamine B under ultraviolet-visible light irradiation. Moreover, individual microsized BiOCl square nanosheets are employed as the building block for construction of an ultraviolet photodetector. Because of its large size, thin thickness, and high surface-to-volume ratio, a BiOCl nanosheet shows high sensitivity and fast transient response to ultraviolet light in the spectral range 200-380 nm.
BiOCl 微结构包括由纳米片堆叠的微球和微尺度的正方形纳米片，其横向尺寸大，为 3-5 μm，厚度为 35 nm（边长/厚度比约为 100），是通过溶剂热法在聚乙烯吡咯烷酮的辅助下合成的。大正方形纳米片的暴露面为 {001} 面。BiOCl 微结构在紫外可见光照射下对罗丹明 B 的分解表现出良好的光催化活性。此外，单个微尺度的 BiOCl 正方形纳米片被用作构建紫外光探测器的构建块。由于其尺寸大、厚度薄、比表面积高，BiOCl 纳米片在 200-380nm 的光谱范围内对紫外光表现出高灵敏度和快速瞬态响应。
