Colorimetric detection of Cu2+ using 4-m
โ
Ying Zhou; Hong Zhao; Yujian He; Nan Ding; Qian Cao
๐
Article
๐
2011
๐
Elsevier Science
๐
English
โ 515 KB
A highly sensitive and selective method is proposed for colorimetric detection of copper ions using 4-mercaptobenzoic acid (4-MBA) modified silver nanoparticles (AgNPs). The presence of Cu2+ induces the aggregation of 4-MBA modified AgNPs, this resulting in a color change from bright yellow to purpl