Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/16081
Title: Photocatalytic construction and building materials : from fundamentals to applications
Authors: Chen, J
Poon, CS 
Keywords: Air pollution control
Photocatalysis
Photocatalytic building materials
Self-cleaning
Self-disinfecting
Titanium dioxide
Issue Date: 2009
Publisher: Pergamon Press
Source: Building and environment, 2009, v. 44, no. 9, p. 1899-1906 How to cite?
Journal: Building and environment 
Abstract: Heterogeneous photocatalysis has been intensively studied in recent decades because it only requires photonic energy to activate the chemical conversion contrasting with conventional catalysis which needs heat for thermo-activation. Over the years, the theories for photochemical activity of photocatalyst including photo-induced redox reaction and super-hydrophilic conversion of TiO2 itself have been established. The progress in academic research significantly promotes its practical applications, including the field of photocatalytic construction and building materials. TiO2 modified building materials are most popular because TiO2 has been traditionally used as a white pigment. The major applications of TiO2 based photocatalytic building materials include environmental pollution remediation, self-cleaning and self-disinfecting. The advantage of using solar light and rainwater as driving force has opened a new domain for environmentally friendly building materials. In this paper, the basic reaction mechanisms on photocatalyst surface under the irradiation of ultraviolet and their corresponding applications in building and construction materials are reviewed. The problems faced in practical applications and the trends for future development are also discussed.
URI: http://hdl.handle.net/10397/16081
ISSN: 0360-1323
EISSN: 1873-684X
DOI: 10.1016/j.buildenv.2009.01.002
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