Carboxymethyl chitosan coating to block photocatalytic activity of TiO2 nanoparticles

Xianqiong Chen; Yuyang Liu; Haifeng Shi; Xiaowen Wang; Kaihong Qi; Xiang Zhou; John Haozhong Xin

doi:10.1177/0040517510376265

Carboxymethyl chitosan coating to block photocatalytic activity of TiO2 nanoparticles

Xianqiong Chen, Yuyang Liu, Haifeng Shi, Xiaowen Wang, Kaihong Qi, Xiang Zhou, John Haozhong Xin

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

23 Citations (Scopus)

Abstract

In order to lower photocatalytic degradation of TiO2on skin and textiles, carboxymethyl chitosan (CMCH) was used to coat TiO2nanoparticles. The polymer (CMCH) not only acted as the blocking agent of photocatalytic activity, but also dispersed TiO2nanoparticles better to prohibit them from congregation by anchoring them. The structure of as-prepared nanocomposites was characterized by scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM). The TiO2/CMCH nanocomposites were coated onto cotton fabrics by a dip-pad—drycure process. The treated cotton fabrics demonstrated lower photocatalytic activity in comparison to cotton fabrics treated by pure TiO2in a typical photocatalytic test. The treated cotton showed a combination of bactericidal activity of TiO2and CMCH, and excellent protection against UV radiation.

Original language	English
Pages (from-to)	2214-2222
Number of pages	9
Journal	Textile Research Journal
Volume	80
Issue number	20
DOIs	https://doi.org/10.1177/0040517510376265
Publication status	Published - 1 Jan 2010

Keywords

Bactericidal
carboxymethyl chitosan
cotton
nanoparticles
photocatalytic
TiO2
UV-blocking

ASJC Scopus subject areas

Chemical Engineering (miscellaneous)
Polymers and Plastics

More information

10.1177/0040517510376265

Cite this

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title = "Carboxymethyl chitosan coating to block photocatalytic activity of TiO2 nanoparticles",

abstract = "In order to lower photocatalytic degradation of TiO2on skin and textiles, carboxymethyl chitosan (CMCH) was used to coat TiO2nanoparticles. The polymer (CMCH) not only acted as the blocking agent of photocatalytic activity, but also dispersed TiO2nanoparticles better to prohibit them from congregation by anchoring them. The structure of as-prepared nanocomposites was characterized by scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM). The TiO2/CMCH nanocomposites were coated onto cotton fabrics by a dip-pad—drycure process. The treated cotton fabrics demonstrated lower photocatalytic activity in comparison to cotton fabrics treated by pure TiO2in a typical photocatalytic test. The treated cotton showed a combination of bactericidal activity of TiO2and CMCH, and excellent protection against UV radiation.",

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author = "Xianqiong Chen and Yuyang Liu and Haifeng Shi and Xiaowen Wang and Kaihong Qi and Xiang Zhou and Xin, {John Haozhong}",

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AU - Chen, Xianqiong

AU - Liu, Yuyang

AU - Shi, Haifeng

AU - Wang, Xiaowen

AU - Qi, Kaihong

AU - Zhou, Xiang

AU - Xin, John Haozhong

PY - 2010/1/1

Y1 - 2010/1/1

N2 - In order to lower photocatalytic degradation of TiO2on skin and textiles, carboxymethyl chitosan (CMCH) was used to coat TiO2nanoparticles. The polymer (CMCH) not only acted as the blocking agent of photocatalytic activity, but also dispersed TiO2nanoparticles better to prohibit them from congregation by anchoring them. The structure of as-prepared nanocomposites was characterized by scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM). The TiO2/CMCH nanocomposites were coated onto cotton fabrics by a dip-pad—drycure process. The treated cotton fabrics demonstrated lower photocatalytic activity in comparison to cotton fabrics treated by pure TiO2in a typical photocatalytic test. The treated cotton showed a combination of bactericidal activity of TiO2and CMCH, and excellent protection against UV radiation.

AB - In order to lower photocatalytic degradation of TiO2on skin and textiles, carboxymethyl chitosan (CMCH) was used to coat TiO2nanoparticles. The polymer (CMCH) not only acted as the blocking agent of photocatalytic activity, but also dispersed TiO2nanoparticles better to prohibit them from congregation by anchoring them. The structure of as-prepared nanocomposites was characterized by scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM). The TiO2/CMCH nanocomposites were coated onto cotton fabrics by a dip-pad—drycure process. The treated cotton fabrics demonstrated lower photocatalytic activity in comparison to cotton fabrics treated by pure TiO2in a typical photocatalytic test. The treated cotton showed a combination of bactericidal activity of TiO2and CMCH, and excellent protection against UV radiation.

KW - Bactericidal

KW - carboxymethyl chitosan

KW - cotton

KW - nanoparticles

KW - photocatalytic

KW - TiO2

KW - UV-blocking

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EP - 2222

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ER -

Carboxymethyl chitosan coating to block photocatalytic activity of TiO2 nanoparticles

Abstract

Keywords

ASJC Scopus subject areas

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