期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Facile and controllable synthesis of molybdenum disulfide quantum dots for highly sensitive and selective sensing of copper ions 被引量:1
1
作者 Xue Li Da-Wei He +4 位作者 Yong-Sheng Wang Yin Hu Xuan Zhao Chen Fu jing-yan wu 《Chinese Physics B》 SCIE EI CAS CSCD 2018年第5期419-423,共5页
Molybdenum disulfide quantum dots(MoS2QDs) were synthesized via a hydrothermal method using sodium molybdate and cysteine as molybdenum and sulfur sources, respectively. The optimal hydrothermal time was studied. Fu... Molybdenum disulfide quantum dots(MoS2QDs) were synthesized via a hydrothermal method using sodium molybdate and cysteine as molybdenum and sulfur sources, respectively. The optimal hydrothermal time was studied. Furthermore, the as synthesized water-soluble MoS2QDs were used as a fluorescence probe for the sensitive and selective detection of copper ions. The fluorescence of the MoS2QDs was quenched after the addition of copper ions; the reason may be that the transfer of the excited electron from QDs to copper ions leads to the reduction of the radiative recombination.The fluorescence quenching of MoS2QDs is linearly dependent on the copper ions concentration ranging from 0.1 μM to600 μM, the limit of detection is 0.098 μM, which is much lower than that of existing methods. Moreover, the MoS2QDs show highly selectivity towards the detection of copper ions. 展开更多
关键词 MoS2 quantum dots PHOTOLUMINESCENCE fluorescent probe
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部