Optical and structural characterization of immobilized 4-(2-pyridylazo)resorcinol in chitosan-graphene oxide composite thin film and its potential for Co2+ sensing using surface plasmon resonance technique

• Main Authors: Saleviter, Silvan, Yap, Wing Fen, Sheh Omar, Nur Alia, Zainudin, Afiq Azri, Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim
• Format: Article
• Language: English
• Published: Elsevier 2018
• Online Access: http://psasir.upm.edu.my/id/eprint/14205/1/Optical%20and%20structural%20characterization%20of%20immobilized%204-%282-pyridylazo%29resorcinol%20in%20chitosan-graphene%20oxide%20composite%20thin%20film%20and%20its%20potential%20for%20Co2%2B%20sensing%20using%20surface%20plasmon%20resonance%20technique.pdf; http://psasir.upm.edu.my/id/eprint/14205/; https://www.sciencedirect.com/science/article/pii/S2211379717319113#!

In this study, the preparation of immobilized 4-(2-pyridylazo)resorcinol (PAR) in chitosan-graphene oxide composite has been described using spin coating technique. The optical properties of the composite thin film was characterized using UV–Vis-NIR absorption spectroscopy and its optical band gap w...