Abstract
In this study, tin oxide (A-SnO2) nanoparticles (NPs) and Chitosan-tin oxide (CS-SnO2) nanocomposite were synthesized using an ammonia solution and chitosan. Thermal stability and degradation are analyzed using TG-DTA. The structural analysis and Rietveld refinement analysis of both synthesized nanoparticles indicate the presence of pure SnO2 NPs. Further, morphological analysis is used to identify the samples as spherical shapes. The UV spectra of both nanoparticles show that CS-SnO2 has a lower band gap energy than A-SnO2, increasing its photodegradation efficiency. The chemical bonding of the Sn-O-Sn functional groups and their valence state are confirmed by FT-IR absorption peaks and XPS spectrum. CS-SnO2 nanocomposite have the highest photodegradation efficiency of approximately 95 %, which is due to the role of chitosan as a biopolymer in SnO2 nanoparticles. In addition, the effect of pH, and the stability of the catalyst are also tested. Thus, this study reveals the potential of A-SnO2 and CS-SnO2 for practical applications in wastewater cleaning and environmental remediation using visible-light-driven photocatalysis. The combination of Chitosan-tin oxide (CS-SnO2) can improve the degradation rate of organic dyes. This strategy provides a good application prospect for dye degradation.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
