Effects of various hydrogenated temperatures on photocatalytic activity of mesoporous titanium dioxide

Chan Wai Soo, Chin Wei Lai, Guan Ting Pan, Thomas Chung Kuang Yang, Kian Mun Lee, Muhammad Rahimi Usop, Joon Ching Juan

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Hydrogenated titanium dioxide (H-TiO2) has drawn much research attention in the photocatalysis society since it has significantly improved solar absorption and enhanced photocatalytic activity. Nevertheless, the key factor that leads to the enhanced photocatalytic performance of H-TiO2 is still debatable. To clarify this issue, the structural properties of H-TiO2 and its effects on photogenerated charges are investigated. Mesoporous H-TiO2 was subjected to different hydrogenation temperatures rate under the flow of purified H2 gas and its photocatalytic activities are evaluated by reactive black 5 photodegradation. The H-TiO2 pretreated at different temperatures seems to have a detrimental effect on photocatalytic activity as compared with that of untreated H-TiO2. Further investigations reveal that H-TiO2 treated at high temperature can cause the formation of less photoactive rutile phase and agglomeration that leads to the inhibition of their photocatalytic activity.

Original languageEnglish
Pages (from-to)77-82
Number of pages6
JournalMicro and Nano Letters
Volume13
Issue number1
DOIs
Publication statusPublished - 1 Jan 2018

Fingerprint

titanium oxides
Titanium dioxide
Remazol black B
Photocatalysis
Photodegradation
Temperature
Hydrogenation
temperature
Structural properties
Agglomeration
agglomeration
Gases
rutile
hydrogenation
titanium dioxide
causes
gases

ASJC Scopus subject areas

  • Bioengineering
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Effects of various hydrogenated temperatures on photocatalytic activity of mesoporous titanium dioxide. / Soo, Chan Wai; Lai, Chin Wei; Pan, Guan Ting; Yang, Thomas Chung Kuang; Lee, Kian Mun; Usop, Muhammad Rahimi; Juan, Joon Ching.

In: Micro and Nano Letters, Vol. 13, No. 1, 01.01.2018, p. 77-82.

Research output: Contribution to journalArticle

Soo, Chan Wai ; Lai, Chin Wei ; Pan, Guan Ting ; Yang, Thomas Chung Kuang ; Lee, Kian Mun ; Usop, Muhammad Rahimi ; Juan, Joon Ching. / Effects of various hydrogenated temperatures on photocatalytic activity of mesoporous titanium dioxide. In: Micro and Nano Letters. 2018 ; Vol. 13, No. 1. pp. 77-82.
@article{714d422f6d5045bfa162635d716f0228,
title = "Effects of various hydrogenated temperatures on photocatalytic activity of mesoporous titanium dioxide",
abstract = "Hydrogenated titanium dioxide (H-TiO2) has drawn much research attention in the photocatalysis society since it has significantly improved solar absorption and enhanced photocatalytic activity. Nevertheless, the key factor that leads to the enhanced photocatalytic performance of H-TiO2 is still debatable. To clarify this issue, the structural properties of H-TiO2 and its effects on photogenerated charges are investigated. Mesoporous H-TiO2 was subjected to different hydrogenation temperatures rate under the flow of purified H2 gas and its photocatalytic activities are evaluated by reactive black 5 photodegradation. The H-TiO2 pretreated at different temperatures seems to have a detrimental effect on photocatalytic activity as compared with that of untreated H-TiO2. Further investigations reveal that H-TiO2 treated at high temperature can cause the formation of less photoactive rutile phase and agglomeration that leads to the inhibition of their photocatalytic activity.",
author = "Soo, {Chan Wai} and Lai, {Chin Wei} and Pan, {Guan Ting} and Yang, {Thomas Chung Kuang} and Lee, {Kian Mun} and Usop, {Muhammad Rahimi} and Juan, {Joon Ching}",
year = "2018",
month = "1",
day = "1",
doi = "10.1049/mnl.2017.0238",
language = "English",
volume = "13",
pages = "77--82",
journal = "Micro and Nano Letters",
issn = "1750-0443",
publisher = "Institution of Engineering and Technology",
number = "1",

}

TY - JOUR

T1 - Effects of various hydrogenated temperatures on photocatalytic activity of mesoporous titanium dioxide

AU - Soo, Chan Wai

AU - Lai, Chin Wei

AU - Pan, Guan Ting

AU - Yang, Thomas Chung Kuang

AU - Lee, Kian Mun

AU - Usop, Muhammad Rahimi

AU - Juan, Joon Ching

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Hydrogenated titanium dioxide (H-TiO2) has drawn much research attention in the photocatalysis society since it has significantly improved solar absorption and enhanced photocatalytic activity. Nevertheless, the key factor that leads to the enhanced photocatalytic performance of H-TiO2 is still debatable. To clarify this issue, the structural properties of H-TiO2 and its effects on photogenerated charges are investigated. Mesoporous H-TiO2 was subjected to different hydrogenation temperatures rate under the flow of purified H2 gas and its photocatalytic activities are evaluated by reactive black 5 photodegradation. The H-TiO2 pretreated at different temperatures seems to have a detrimental effect on photocatalytic activity as compared with that of untreated H-TiO2. Further investigations reveal that H-TiO2 treated at high temperature can cause the formation of less photoactive rutile phase and agglomeration that leads to the inhibition of their photocatalytic activity.

AB - Hydrogenated titanium dioxide (H-TiO2) has drawn much research attention in the photocatalysis society since it has significantly improved solar absorption and enhanced photocatalytic activity. Nevertheless, the key factor that leads to the enhanced photocatalytic performance of H-TiO2 is still debatable. To clarify this issue, the structural properties of H-TiO2 and its effects on photogenerated charges are investigated. Mesoporous H-TiO2 was subjected to different hydrogenation temperatures rate under the flow of purified H2 gas and its photocatalytic activities are evaluated by reactive black 5 photodegradation. The H-TiO2 pretreated at different temperatures seems to have a detrimental effect on photocatalytic activity as compared with that of untreated H-TiO2. Further investigations reveal that H-TiO2 treated at high temperature can cause the formation of less photoactive rutile phase and agglomeration that leads to the inhibition of their photocatalytic activity.

UR - http://www.scopus.com/inward/record.url?scp=85040722981&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85040722981&partnerID=8YFLogxK

U2 - 10.1049/mnl.2017.0238

DO - 10.1049/mnl.2017.0238

M3 - Article

VL - 13

SP - 77

EP - 82

JO - Micro and Nano Letters

JF - Micro and Nano Letters

SN - 1750-0443

IS - 1

ER -