人工晶体学报2011，Vol.40Issue(5)：1188-1193,6.
微波水热时间对CuS微晶形貌及光学性能的影响
Influences of Reaction Time on the Morphology and Optical Property of CuS Microcrystallites Prepared by Microwave Hydrothermal Method
摘要
Abstract
Covellite copper sulfide microcrystallites were prepared by a template-free microwave hydrothermal method using Cu(NO3)2 ? 3H2O and SC(NH2)2 as raw materials. The phase, morphology and optical properties of as-prepared samples were characterized by XRD, SEM and UV-vis absorption spectra. The results indicated that copper sulfide microcrystallites could be obtained at 150 ℃ within only 5 min, and the crystallinity of products increases as the reaction time increasing. Correspondingly, the sphere-like morphology assembled by nanoslices changes to curled rod-like structure as the hydrothermal time incearsing. UV-vis absorption spectra showed that the samples have a strong absorption in visible band with a obvious red shift comparing to the common bulky CuS particles. Besides, the bandgaps of the as-prepared CuS particles changes with different reaction time. This indicated the morphology-related optical properties of the products could be controlled by varying the microwave reaction time from 10 min to 40 min.关键词
微波水热法/CuS微晶/形貌/禁带宽度Key words
microwave hydrothermal method/ CuS microcrystallites/ morphology/ bandgap分类
化学化工引用本文复制引用
齐慧,黄剑锋,曹丽云,李嘉胤,吴建鹏..微波水热时间对CuS微晶形貌及光学性能的影响[J].人工晶体学报,2011,40(5):1188-1193,6.基金项目
国家自然科学基金(50942047) （50942047）
陕西省自然科学基金(2010JM6001) （2010JM6001）
陕西科技大学研究生创新基金资助项目 （）
