Modication of gold active layer for detection cobalt ion via surface plasmon resonance spectroscopy

In this study, gold layer has been modified by introducing chitosan-graphene oxide-cadmium sulfide quantum dots on the gold layer for the detection of cobalt ion, Co2+. The composite material was deposited on the gold layer by using spin coater machine. The thin film was used as an active layer for...

全面介绍

书目详细资料
Main Authors: Saleviter, Silvan, Yap, Wing Fen, Sheh Omar, Nur Alia, Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim
格式: Conference or Workshop Item
语言:English
出版: 2018
在线阅读:http://psasir.upm.edu.my/id/eprint/65453/1/38.pdf
实物特征
总结:In this study, gold layer has been modified by introducing chitosan-graphene oxide-cadmium sulfide quantum dots on the gold layer for the detection of cobalt ion, Co2+. The composite material was deposited on the gold layer by using spin coater machine. The thin film was used as an active layer for the detection of Co2+ using surface plasmon spectroscopy and the optical changes of the thin film after contacting with different concentration of Co2+ ions had been obtained and graph fitted. The resonance angle shifted to a higher value as the concentration of Co2+ ions was increased. Changes of the resonance angle showed that Co2+ ion does react with the modified thin film with a binding affinity of 3.03 M-1.