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A critical review on TiO2 based photocatalytic CO2 reduction system: strategies to improve efficiency

The massive burning of fossil fuels to fulfill the augmenting energy demands of world have triggered the ever-increasing emission of carbon dioxide (CO2); the main cause of global warming. Photocatalytic reduction of CO2 into solar fuels and chemicals using everlasting solar energy seems promising t...

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Main Authors: Shehzad, Nasir, Tahir, Muhammad, Johar, Khairiraihanna, Murugesan, Thanabalan, Hussain, Murid
Format: Article
Published: Elsevier Ltd. 2018
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/84197/
https://doi.org/10.1016/j.jcou.2018.04.026
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spelling my.utm.841972019-12-16T03:20:41Z http://eprints.utm.my/id/eprint/84197/ A critical review on TiO2 based photocatalytic CO2 reduction system: strategies to improve efficiency Shehzad, Nasir Tahir, Muhammad Johar, Khairiraihanna Murugesan, Thanabalan Hussain, Murid TP Chemical technology The massive burning of fossil fuels to fulfill the augmenting energy demands of world have triggered the ever-increasing emission of carbon dioxide (CO2); the main cause of global warming. Photocatalytic reduction of CO2 into solar fuels and chemicals using everlasting solar energy seems promising technology to contemporaneously curb the globa1 warming and partially fulfill the energy requirements. This study focused on understanding the main challenges in photocatalytic CO2 reduction systems and strategies to improve the efficiency of solar fuels production. The overview of fundamentals and latest developments in titania (TiO2) based photocatalytic CO2 reduction systems have been discussed. More specifically, thermodynamics, mass transfer, selectivity and reaction mechanism of photocatalytic CO2 reduction are critically deliberated. In the main stream, developments have been categorized as strategies to enhance the different aspects such as visible light response, charge separation, CO2 adsorption and morphology of photo-catalysts for TiO2 based photocatalytic CO2 reduction systems. Different modification techniques to overcome the low efficiency by fabricating advance TiO2 nanocomposites through surface modifications, doping of metals, non-metals and semiconductor are discussed. The challenges lingering on against achieving the higher photocatalytic conversion of CO2 into solar fuels are also investigated. In conclusion, brief perspectives and recommendations on the development of efficient photocatalysts are outlined which would be of vital importance for the improvements of conversion efficiency of CO2 reduction system. Elsevier Ltd. 2018 Article PeerReviewed Shehzad, Nasir and Tahir, Muhammad and Johar, Khairiraihanna and Murugesan, Thanabalan and Hussain, Murid (2018) A critical review on TiO2 based photocatalytic CO2 reduction system: strategies to improve efficiency. Journal of CO2 Utilization, 26 . pp. 98-122. ISSN 2212-9820 https://doi.org/10.1016/j.jcou.2018.04.026
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
Shehzad, Nasir
Tahir, Muhammad
Johar, Khairiraihanna
Murugesan, Thanabalan
Hussain, Murid
A critical review on TiO2 based photocatalytic CO2 reduction system: strategies to improve efficiency
description The massive burning of fossil fuels to fulfill the augmenting energy demands of world have triggered the ever-increasing emission of carbon dioxide (CO2); the main cause of global warming. Photocatalytic reduction of CO2 into solar fuels and chemicals using everlasting solar energy seems promising technology to contemporaneously curb the globa1 warming and partially fulfill the energy requirements. This study focused on understanding the main challenges in photocatalytic CO2 reduction systems and strategies to improve the efficiency of solar fuels production. The overview of fundamentals and latest developments in titania (TiO2) based photocatalytic CO2 reduction systems have been discussed. More specifically, thermodynamics, mass transfer, selectivity and reaction mechanism of photocatalytic CO2 reduction are critically deliberated. In the main stream, developments have been categorized as strategies to enhance the different aspects such as visible light response, charge separation, CO2 adsorption and morphology of photo-catalysts for TiO2 based photocatalytic CO2 reduction systems. Different modification techniques to overcome the low efficiency by fabricating advance TiO2 nanocomposites through surface modifications, doping of metals, non-metals and semiconductor are discussed. The challenges lingering on against achieving the higher photocatalytic conversion of CO2 into solar fuels are also investigated. In conclusion, brief perspectives and recommendations on the development of efficient photocatalysts are outlined which would be of vital importance for the improvements of conversion efficiency of CO2 reduction system.
format Article
author Shehzad, Nasir
Tahir, Muhammad
Johar, Khairiraihanna
Murugesan, Thanabalan
Hussain, Murid
author_facet Shehzad, Nasir
Tahir, Muhammad
Johar, Khairiraihanna
Murugesan, Thanabalan
Hussain, Murid
author_sort Shehzad, Nasir
title A critical review on TiO2 based photocatalytic CO2 reduction system: strategies to improve efficiency
title_short A critical review on TiO2 based photocatalytic CO2 reduction system: strategies to improve efficiency
title_full A critical review on TiO2 based photocatalytic CO2 reduction system: strategies to improve efficiency
title_fullStr A critical review on TiO2 based photocatalytic CO2 reduction system: strategies to improve efficiency
title_full_unstemmed A critical review on TiO2 based photocatalytic CO2 reduction system: strategies to improve efficiency
title_sort critical review on tio2 based photocatalytic co2 reduction system: strategies to improve efficiency
publisher Elsevier Ltd.
publishDate 2018
url http://eprints.utm.my/id/eprint/84197/
https://doi.org/10.1016/j.jcou.2018.04.026
_version_ 1654960054286155776
score 13.211869

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