Selective detection of trace amount of Cu2+ using semiconductor nanoparticles in photoelectrochemical analysis
Selective detection of trace amount of Cu2+ using semiconductor nanoparticles in photoelectrochemical analysis
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DOI：
10.1039/c0nr00084a
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发表时间：
2010-01-01
期刊：
影响因子：
6.7
通讯作者：
Chen, Hong-Yuan
中科院分区：
文献类型：
--
作者：
Wang, Guang-Li;Xu, Jing-Juan;Chen, Hong-Yuan
基于三乙醇胺(TEA)溶液中固定在ITO电极表面的硫化镉量子点(QD)与Cu2+的选择性相互作用，形成CuxS掺杂的Cd S量子点，干扰了Cd S向ITO导带的电子转移，导致光电流减小，研制了一种高灵敏、高选择性的Cu2+光电化学传感器。
A highly sensitive and selective photoelectrochemical sensor for Cu2+ was developed based on the selective interaction between CdS quantum dots (QDs) immobilized on an indium tin oxide (ITO) electrode surface and Cu2+ in a triethanolamine (TEA) solution to form CuxS-doped CdS QDs, which disrupts the electron transfer from the conduction band of CdS to ITO and results in a decrease of photocurrent.