Photocatalytic cementitious material for eco-efficient construction—a systematic literature review

Photoinduced processes governed by light activated TiO2 have been studied in many ways. One of the most active areas is the development of TiO2 photocatalysis technologies on their application for reducing environmental impacts. The immobilization of TiO2 on solid support, such as cementitious mater...

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Main Authors: Hamdany, Abdul Halim, Satyanaga, Alfrendo, Zhang, Dichuan, Kim, Yongmin, Kim, Jong R.
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2023
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Online Access:https://hdl.handle.net/10356/165201
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1652012023-03-24T15:35:24Z Photocatalytic cementitious material for eco-efficient construction—a systematic literature review Hamdany, Abdul Halim Satyanaga, Alfrendo Zhang, Dichuan Kim, Yongmin Kim, Jong R. School of Civil and Environmental Engineering Engineering::Civil engineering Photocatalysis Cementitious Materials Photoinduced processes governed by light activated TiO2 have been studied in many ways. One of the most active areas is the development of TiO2 photocatalysis technologies on their application for reducing environmental impacts. The immobilization of TiO2 on solid support, such as cementitious materials, greatly enhances its use in practical applications. In this review, a wide range of applications for achieving eco-efficient building using cementitious composite materials containing TiO2 photocatalyst was presented. The basic mechanism of photocatalysis, such as electron excitation, charge transfer process, reactive oxygen species (ROS) generation, and its role to oxidize the pollutant and microorganisms were extensively discussed. Unlike self-cleaning and air purification systems, the study on the antibacterial function of a cement-based surface containing TiO2 is very limited. In photocatalytic cementitious materials, the key element affecting the photocatalytic performance is the accessible active surface area. However, microstructure of cementitious materials changes with age due to hydration and surface carbonation. Hence, surface area reduction and mass transfer limitation become the main drawbacks of incorporating TiO2 in cementitious materials. This review, therefore, provides the state of the art in photocatalytic cement-based composite materials and identifies the areas in which future improvement is needed. Published version This research was funded by the Nazarbayev University, Collaborative Research Project (CRP) Grant No. 11022021CRP1512 and social policy grant. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the Nazarbayev University. 2023-03-20T04:24:45Z 2023-03-20T04:24:45Z 2022 Journal Article Hamdany, A. H., Satyanaga, A., Zhang, D., Kim, Y. & Kim, J. R. (2022). Photocatalytic cementitious material for eco-efficient construction—a systematic literature review. Applied Sciences, 12(17), 8741-. https://dx.doi.org/10.3390/app12178741 2076-3417 https://hdl.handle.net/10356/165201 10.3390/app12178741 2-s2.0-85137887647 17 12 8741 en Applied Sciences © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Civil engineering
Photocatalysis
Cementitious Materials
spellingShingle Engineering::Civil engineering
Photocatalysis
Cementitious Materials
Hamdany, Abdul Halim
Satyanaga, Alfrendo
Zhang, Dichuan
Kim, Yongmin
Kim, Jong R.
Photocatalytic cementitious material for eco-efficient construction—a systematic literature review
description Photoinduced processes governed by light activated TiO2 have been studied in many ways. One of the most active areas is the development of TiO2 photocatalysis technologies on their application for reducing environmental impacts. The immobilization of TiO2 on solid support, such as cementitious materials, greatly enhances its use in practical applications. In this review, a wide range of applications for achieving eco-efficient building using cementitious composite materials containing TiO2 photocatalyst was presented. The basic mechanism of photocatalysis, such as electron excitation, charge transfer process, reactive oxygen species (ROS) generation, and its role to oxidize the pollutant and microorganisms were extensively discussed. Unlike self-cleaning and air purification systems, the study on the antibacterial function of a cement-based surface containing TiO2 is very limited. In photocatalytic cementitious materials, the key element affecting the photocatalytic performance is the accessible active surface area. However, microstructure of cementitious materials changes with age due to hydration and surface carbonation. Hence, surface area reduction and mass transfer limitation become the main drawbacks of incorporating TiO2 in cementitious materials. This review, therefore, provides the state of the art in photocatalytic cement-based composite materials and identifies the areas in which future improvement is needed.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Hamdany, Abdul Halim
Satyanaga, Alfrendo
Zhang, Dichuan
Kim, Yongmin
Kim, Jong R.
format Article
author Hamdany, Abdul Halim
Satyanaga, Alfrendo
Zhang, Dichuan
Kim, Yongmin
Kim, Jong R.
author_sort Hamdany, Abdul Halim
title Photocatalytic cementitious material for eco-efficient construction—a systematic literature review
title_short Photocatalytic cementitious material for eco-efficient construction—a systematic literature review
title_full Photocatalytic cementitious material for eco-efficient construction—a systematic literature review
title_fullStr Photocatalytic cementitious material for eco-efficient construction—a systematic literature review
title_full_unstemmed Photocatalytic cementitious material for eco-efficient construction—a systematic literature review
title_sort photocatalytic cementitious material for eco-efficient construction—a systematic literature review
publishDate 2023
url https://hdl.handle.net/10356/165201
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