Selective detection of trace amount of Cu2+ using semiconductor nanoparticles in photoelectrochemical analysis.
A highly sensitive and selective photoelectrochemical sensor for Cu(2+) was developed based on the selective interaction between CdS quantum dots (QDs) immobilized on an indium tin oxide (ITO) electrode surface and Cu(2+) in a triethanolamine (TEA) solution to form Cu(x)S-doped CdS QDs, which disrupts the electron transfer from the conduction band of CdS to ITO and results in a decrease of photocurrent.
Wang
Guang-Li
GL
Key Laboratory of Analytical Chemistry for Life Science (Ministry of Education of China), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China.
Xu
Jing-Juan
JJ
Chen
Hong-Yuan
HY
D019187:Cadmium Compounds / Q000737:chemistry; D003300:Copper / Q000032:analysis*; D055664:Electrochemical Techniques / Q000379:methods*; D004566:Electrodes; D004983:Ethanolamines / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D010084:Oxidation-Reduction; D045663:Quantum Dots; D013440:Sulfides / Q000737:chemistry; D017971:Tin Compounds / Q000737:chemistry
D019187:Cadmium Compounds; D004983:Ethanolamines; D013440:Sulfides; D017971:Tin Compounds; C034939:cadmium sulfide; C109984:indium tin oxide; D003300:Copper; C009546:triethanolamine