Highly visible-light absorbing black TiO2 nanocrystals synthesized by sol-gel method and subsequent heat treatment in low partial pressure H2

Ming Chung Wu; I. Chun Chang; Kai Chi Hsiao; Wei Kang Huang

doi:10.1016/j.jtice.2016.02.026

Highly visible-light absorbing black TiO₂ nanocrystals synthesized by sol-gel method and subsequent heat treatment in low partial pressure H₂

Ming Chung Wu^*
, I. Chun Chang
, Kai Chi Hsiao
, Wei Kang Huang

^*此作品的通信作者

化工與材料工程學系(含學碩博士班及碩士在職專班)

Chang Gung University

研究成果: 期刊稿件 › 文章 › 同行評審

24 引文斯高帕斯（Scopus）

摘要

We present here a novel method for producing highly visible-light absorbing black TiO₂ nanocrystals by combining sol-gel synthesis and subsequent heat treatment in low partial pressure H₂. The synthesized black TiO₂ nanocrystals with trivalent titanium, oxygen vacancies and structural defects show a significantly lowered optical bandgap in reference to white TiO₂. Photodegradation of methyl orange under visible light irradiation indicates the synthesized black TiO₂ is superior to the commercial TiO₂-P25. The developed process is simple, cost-effective, safe and allows producing a series of visible spectrum active catalysts without the need for metal doping or decoration.

原文	英語
頁（從 - 到）	430-435
頁數	6
期刊	Journal of the Taiwan Institute of Chemical Engineers
卷	63
DOIs	https://doi.org/10.1016/j.jtice.2016.02.026
出版狀態	已出版 - 01 06 2016

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Publisher Copyright:
© 2016 Taiwan Institute of Chemical Engineers.

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10.1016/j.jtice.2016.02.026

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Link to publication in Scopus

引用此

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title = "Highly visible-light absorbing black TiO2 nanocrystals synthesized by sol-gel method and subsequent heat treatment in low partial pressure H2",

abstract = "We present here a novel method for producing highly visible-light absorbing black TiO2 nanocrystals by combining sol-gel synthesis and subsequent heat treatment in low partial pressure H2. The synthesized black TiO2 nanocrystals with trivalent titanium, oxygen vacancies and structural defects show a significantly lowered optical bandgap in reference to white TiO2. Photodegradation of methyl orange under visible light irradiation indicates the synthesized black TiO2 is superior to the commercial TiO2-P25. The developed process is simple, cost-effective, safe and allows producing a series of visible spectrum active catalysts without the need for metal doping or decoration.",

keywords = "Nanostructures, Photocatalyst, Photodegradation, TiO",

author = "Wu, \{Ming Chung\} and Chang, \{I. Chun\} and Hsiao, \{Kai Chi\} and Huang, \{Wei Kang\}",

note = "Publisher Copyright: {\textcopyright} 2016 Taiwan Institute of Chemical Engineers.",

year = "2016",

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day = "1",

doi = "10.1016/j.jtice.2016.02.026",

language = "英语",

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TY - JOUR

T1 - Highly visible-light absorbing black TiO2 nanocrystals synthesized by sol-gel method and subsequent heat treatment in low partial pressure H2

AU - Wu, Ming Chung

AU - Chang, I. Chun

AU - Hsiao, Kai Chi

AU - Huang, Wei Kang

PY - 2016/6/1

Y1 - 2016/6/1

N2 - We present here a novel method for producing highly visible-light absorbing black TiO2 nanocrystals by combining sol-gel synthesis and subsequent heat treatment in low partial pressure H2. The synthesized black TiO2 nanocrystals with trivalent titanium, oxygen vacancies and structural defects show a significantly lowered optical bandgap in reference to white TiO2. Photodegradation of methyl orange under visible light irradiation indicates the synthesized black TiO2 is superior to the commercial TiO2-P25. The developed process is simple, cost-effective, safe and allows producing a series of visible spectrum active catalysts without the need for metal doping or decoration.

AB - We present here a novel method for producing highly visible-light absorbing black TiO2 nanocrystals by combining sol-gel synthesis and subsequent heat treatment in low partial pressure H2. The synthesized black TiO2 nanocrystals with trivalent titanium, oxygen vacancies and structural defects show a significantly lowered optical bandgap in reference to white TiO2. Photodegradation of methyl orange under visible light irradiation indicates the synthesized black TiO2 is superior to the commercial TiO2-P25. The developed process is simple, cost-effective, safe and allows producing a series of visible spectrum active catalysts without the need for metal doping or decoration.

KW - Nanostructures

KW - Photocatalyst

KW - Photodegradation

KW - TiO

UR - https://www.scopus.com/pages/publications/84961943460

U2 - 10.1016/j.jtice.2016.02.026

DO - 10.1016/j.jtice.2016.02.026

M3 - 文章

AN - SCOPUS:84961943460

SN - 1876-1070

VL - 63

SP - 430

EP - 435

JO - Journal of the Taiwan Institute of Chemical Engineers

JF - Journal of the Taiwan Institute of Chemical Engineers

ER -

Highly visible-light absorbing black TiO2 nanocrystals synthesized by sol-gel method and subsequent heat treatment in low partial pressure H2

摘要

文獻附註

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Highly visible-light absorbing black TiO₂ nanocrystals synthesized by sol-gel method and subsequent heat treatment in low partial pressure H₂