Polyvinyl alcohol-based aerogel for solar-driven dye wastewater purification
ZHANG Zhixiang
KANG Meng
ZHOU Jianhua
Abstract：Volatile organic pollutants in water are easily evaporated together with water under light irradia-tion,causing secondary pollution of the collected water,which increases the difficulty of dye wastewater purification.In this regard,PB/PPy/PVA aerogel was synthesized by freeze-drying using Prussian blue(PB)as the catalytic center for Fenton degradation,polypyrrole(PPy)as the photothermal center,and polyvinyl alcohol(PVA)as the functional carrier.PB/PPy/PVA aerogel could degrade 99.5％ methyl or-ange within 15 min.Under one-sun illumination,the evaporation rate was 1.95 kg·m-2·h-1 with the excellent stability.As-synthesized PB/PPy/PVA aerogel realizes efficient degradation of organic pollutants in water while collecting clean condensate water,which has a broad application prospect in the purification of dye wastewater.
Keywords：photothermalwater evaporationFenton catalysisaerogelwastewater purification
Publication Date：2025-06-25
Online Publishing Date：2026-08-28(First online date of this platform, not the publication date of the document)
Pages：8( 362-369 )