Preparation and Adsorption Photocatalytic Properties of PVA/TiO 2 Colloidal Photonic Crystal Films

Polyvinyl alcohol (PVA)/TiO /colloidal photonic crystal (CPC) films with photocatalytic properties are presented, where TiO nanoparticles were introduced into the PVA gel network. Such PVA/TiO /CPC films possess three-dimensional periodic structures that are supported with a PVA/TiO composite gel. T...

Full description

Saved in:
Bibliographic Details
Published in:Gels 2024-08, Vol.10 (8)
Main Authors: Qian, Zhangyi, Wang, Menghan, Li, Junling, Chu, Zhaoran, Tang, Wenwei, Chen, Cheng
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Polyvinyl alcohol (PVA)/TiO /colloidal photonic crystal (CPC) films with photocatalytic properties are presented, where TiO nanoparticles were introduced into the PVA gel network. Such PVA/TiO /CPC films possess three-dimensional periodic structures that are supported with a PVA/TiO composite gel. The unique structural color of CPCs can indicate the process of material preparation, adsorption, and desorption. The shift of diffraction peaks of CPCs can be more accurately determined using fiber-optic spectroscopy. The effect of the PVA/TiO /CPC catalyst films showed better properties as the degradation of methylene blue (MB) by the PVA/TiO /CPC film catalyst in 4 h was 77~90%, while the degradation of MB by the PVA/TiO film was 33% in 4 h, indicating that the photonic crystal structure was 2.3~2.7 times more effective than that of the bulk structure.
ISSN:2310-2861
DOI:10.3390/gels10080520