Photocatalytic degradation property of hemicellulose/TiO<sub>2</sub> composite gel

SUN Xiaofeng; LI Chi; XIA Xiuyang; ZHOU Rui; WANG Yaxiong; FENG Yang

doi:10.11949/j.issn.0438-1157.20151542

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Photocatalytic degradation property of hemicellulose/TiO₂ composite gel

更新时间：2025-12-10

- Photocatalytic degradation property of hemicellulose/TiO₂ composite gel
- CIESC Journal Issue 5, Pages: 2070-2077(2016)
- 作者机构：
  
  西北工业大学应用化学系,陕西,西安,710129
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20151542
  CLC： 648.17
- Online First：05 May 2016，
  
  Published：05 May 2016
- 稿件说明：
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SUN Xiaofeng, LI Chi, XIA Xiuyang, et al. Photocatalytic degradation property of hemicellulose/TiO₂ composite gel[J]. CIESC Journal, 2016, (5): 2070-2077. DOI: 10.11949/j.issn.0438-1157.20151542.
DOI：

SUN Xiaofeng, LI Chi, XIA Xiuyang, et al. Photocatalytic degradation property of hemicellulose/TiO₂ composite gel[J]. CIESC Journal, 2016, (5): 2070-2077. DOI: 10.11949/j.issn.0438-1157.20151542. DOI：

摘要

以半纤维素和TiO2纳米粒子为原料制得半纤维素/TiO2复合凝胶。分别用红外光谱分析和扫描电镜对复合水凝胶进行了表征

分析表明半纤维素上成功接枝聚丙烯酸

凝胶呈现多孔结构

且随着TiO2含量的增加凝胶孔径减小。考察了半纤维素/TiO2复合凝胶的溶胀性能以及对亚甲基蓝的光催化降解性能

研究表明半纤维素/TiO2复合凝胶的溶胀率随着TiO2粒子含量的增加而减小

随着pH的增大先增大后减小;对亚甲基蓝染料的降解率随着TiO2含量的增加先增大后减小

随着pH的增大先增大后减小

随着亚甲基蓝初始浓度的增大而增大。

Abstract

Hemicellulose/TiO2 composite gel was prepared using hemicellulose and TiO2 nanoparticles. Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM) were used to study the structure and morphology of the hydrogel. Experimental analysis showed that the hemicellulose was successfully grafted with the polyacrylic acid and a porous hydrogel was observed. The pore size of the hydrogel decreased with the increase of the TiO2 content. In addition

the swelling properties and photocatalytic degradation properties of the hydrogel were also investigated. Experimental results showed that the swelling ratio of the hydrogel increased at first and then decreased with the increase of pH while kept decreasing with the increase of the TiO2 content. The degradation ratio of methylene blue increased at first and then decreased with the increase of the TiO2 content or a rise of pH value of the methylene blue solution

and it also increased with the increase of the initial concentration of methylene blue solution.

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Photocatalytic degradation property of hemicellulose/TiO2 composite gel

DOI：10.11949/j.issn.0438-1157.20151542

摘要

Abstract

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Keywords

references

Photocatalytic degradation property of hemicellulose/TiO₂ composite gel