文档介绍：
Efficient degradation of methylene blue by
Fe3O4/chitosan/TiO2 posites#
5
10
He Yu, Song Gongwu*
(Department of Chmeistry and Chemical engineering, Hubei University, Wuhan, 430062)
Abstract: In this work, a facile and low-cost method for fabrication of the Fe3O4/chitosan/TiO2
posites with good adsorptive, photocatalytic, regenerated and ic properties was
demonstrated. The synthesized posites had potential applications for the adsorption and
degradation anic pollutants in wastewater. Under the optimal condition, degradation rate of the
methyl blue by the Fe3O4/chitosan/TiO2 posites was 93%. The renewable photocatalytic
activity of the posites was also investigated. After multi-run experiments, the reused
Fe3O4/chitosan/TiO2
posites
still kept high photocatalytic performance. Thus,
Fe3O4/chitosan/TiO2 posites could serve as convenient, effective, and recyclable
15
20
photocatalysts.
Key words: photocatalysis; ic property; Fe3O4/CTS/TiO2 posites
0 Introduction
Nano-TiO2 is a highly active photocatalyst with favorable properties including low-cost,
stability and non-toxicity. [1-8] This photocatalytic process by nano-TiO2 can pose almost all
anic pollutants in water under moderate conditions, which is facile, economical and
environmental friendly.
[1-8]
Nevertheless, nano-TiO2 also encounters great difficulties to be
separated and recycled after