A review: Effect of nanostructures on photocatalytic CO2 conversion over metal oxides and compound semiconductors

Yoon Yun Lee, Han Sol Jung, Yong Tae Kang

Research output: Contribution to journalReview article

20 Citations (Scopus)

Abstract

Photo-conversion of CO2 into valuable solar fuels under the light irradiation is one of the most environmentally-friendly and economical technologies for reducing the CO2 emissions. Nanostructured metal oxides and compound semiconductors have been applied as photocatalysts for CO2 conversion. Especially, nanoparticulate and nanoporous materials have been studied extensively as photocatalysts owing to their reduced dimensions for electron transport, high surface areas, catalytic activity, and shorter diffusion pathway for the reactants. Transition metal oxides have long been studied as photocatalysts, however, these materials show low CO2 conversion efficiencies because of their wide band gap, which results in poor light absorption characteristics in the visible range. To improve the photocatalytic activity of CO2 conversion, alternative compound semiconductors with high visible absorption light absorption properties have been considered as photocatalysts for CO2 conversion. In this study, the effect of nanostructures on the photocatalytic conversion of CO2 to other chemicals on transition metal oxides and compound semiconductors are compared and the promising research directions to design photocatalysts for CO2 conversion performance enhancement are proposed.

Original languageEnglish
Pages (from-to)163-177
Number of pages15
JournalJournal of CO2 Utilization
Volume20
DOIs
Publication statusPublished - 2017 Jul 1

Fingerprint

Photocatalysts
Oxides
Nanostructures
Metals
transition element
Semiconductor materials
Light absorption
Transition metals
irradiation
surface area
electron
Conversion efficiency
Catalyst activity
Energy gap
effect
metal oxide
semiconductor
Irradiation
material

Keywords

  • Carbon capture and utilization
  • CO conversion
  • Compound semiconductors
  • Nanostructures
  • Photocatalysts

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Waste Management and Disposal
  • Process Chemistry and Technology

Cite this

A review : Effect of nanostructures on photocatalytic CO2 conversion over metal oxides and compound semiconductors. / Lee, Yoon Yun; Jung, Han Sol; Kang, Yong Tae.

In: Journal of CO2 Utilization, Vol. 20, 01.07.2017, p. 163-177.

Research output: Contribution to journalReview article

@article{55f1984b61474b248556b3e7ec8f1ff8,
title = "A review: Effect of nanostructures on photocatalytic CO2 conversion over metal oxides and compound semiconductors",
abstract = "Photo-conversion of CO2 into valuable solar fuels under the light irradiation is one of the most environmentally-friendly and economical technologies for reducing the CO2 emissions. Nanostructured metal oxides and compound semiconductors have been applied as photocatalysts for CO2 conversion. Especially, nanoparticulate and nanoporous materials have been studied extensively as photocatalysts owing to their reduced dimensions for electron transport, high surface areas, catalytic activity, and shorter diffusion pathway for the reactants. Transition metal oxides have long been studied as photocatalysts, however, these materials show low CO2 conversion efficiencies because of their wide band gap, which results in poor light absorption characteristics in the visible range. To improve the photocatalytic activity of CO2 conversion, alternative compound semiconductors with high visible absorption light absorption properties have been considered as photocatalysts for CO2 conversion. In this study, the effect of nanostructures on the photocatalytic conversion of CO2 to other chemicals on transition metal oxides and compound semiconductors are compared and the promising research directions to design photocatalysts for CO2 conversion performance enhancement are proposed.",
keywords = "Carbon capture and utilization, CO conversion, Compound semiconductors, Nanostructures, Photocatalysts",
author = "Lee, {Yoon Yun} and Jung, {Han Sol} and Kang, {Yong Tae}",
year = "2017",
month = "7",
day = "1",
doi = "10.1016/j.jcou.2017.05.019",
language = "English",
volume = "20",
pages = "163--177",
journal = "Journal of CO2 Utilization",
issn = "2212-9820",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - A review

T2 - Effect of nanostructures on photocatalytic CO2 conversion over metal oxides and compound semiconductors

AU - Lee, Yoon Yun

AU - Jung, Han Sol

AU - Kang, Yong Tae

PY - 2017/7/1

Y1 - 2017/7/1

N2 - Photo-conversion of CO2 into valuable solar fuels under the light irradiation is one of the most environmentally-friendly and economical technologies for reducing the CO2 emissions. Nanostructured metal oxides and compound semiconductors have been applied as photocatalysts for CO2 conversion. Especially, nanoparticulate and nanoporous materials have been studied extensively as photocatalysts owing to their reduced dimensions for electron transport, high surface areas, catalytic activity, and shorter diffusion pathway for the reactants. Transition metal oxides have long been studied as photocatalysts, however, these materials show low CO2 conversion efficiencies because of their wide band gap, which results in poor light absorption characteristics in the visible range. To improve the photocatalytic activity of CO2 conversion, alternative compound semiconductors with high visible absorption light absorption properties have been considered as photocatalysts for CO2 conversion. In this study, the effect of nanostructures on the photocatalytic conversion of CO2 to other chemicals on transition metal oxides and compound semiconductors are compared and the promising research directions to design photocatalysts for CO2 conversion performance enhancement are proposed.

AB - Photo-conversion of CO2 into valuable solar fuels under the light irradiation is one of the most environmentally-friendly and economical technologies for reducing the CO2 emissions. Nanostructured metal oxides and compound semiconductors have been applied as photocatalysts for CO2 conversion. Especially, nanoparticulate and nanoporous materials have been studied extensively as photocatalysts owing to their reduced dimensions for electron transport, high surface areas, catalytic activity, and shorter diffusion pathway for the reactants. Transition metal oxides have long been studied as photocatalysts, however, these materials show low CO2 conversion efficiencies because of their wide band gap, which results in poor light absorption characteristics in the visible range. To improve the photocatalytic activity of CO2 conversion, alternative compound semiconductors with high visible absorption light absorption properties have been considered as photocatalysts for CO2 conversion. In this study, the effect of nanostructures on the photocatalytic conversion of CO2 to other chemicals on transition metal oxides and compound semiconductors are compared and the promising research directions to design photocatalysts for CO2 conversion performance enhancement are proposed.

KW - Carbon capture and utilization

KW - CO conversion

KW - Compound semiconductors

KW - Nanostructures

KW - Photocatalysts

UR - http://www.scopus.com/inward/record.url?scp=85020000104&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85020000104&partnerID=8YFLogxK

U2 - 10.1016/j.jcou.2017.05.019

DO - 10.1016/j.jcou.2017.05.019

M3 - Review article

AN - SCOPUS:85020000104

VL - 20

SP - 163

EP - 177

JO - Journal of CO2 Utilization

JF - Journal of CO2 Utilization

SN - 2212-9820

ER -