Cu2O/TiO2 heterostructure nanotube arrays prepared by an electrodeposition method exhibiting enhanced photocatalytic activity for CO2 reduction to methanol

Junyi Wang; Guangbin Ji; Yousong Liu; M. A. Gondal; Xiaofeng Chang

doi:10.1016/j.catcom.2013.11.011

Cu₂O/TiO₂ heterostructure nanotube arrays prepared by an electrodeposition method exhibiting enhanced photocatalytic activity for CO₂ reduction to methanol

Junyi Wang, Guangbin Ji^*, Yousong Liu, M. A. Gondal, Xiaofeng Chang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

160 Scopus citations

Abstract

Cu₂O/TiO₂ composite nanotube arrays demonstrating enhanced photocatalytic performance were synthesized using an electrodeposition method to impregnate the p-type Cu₂O into the n-type titanium dioxide nanotube arrays (TNTs). The morphological results confirmed that the TNTs are wrapped by the Cu₂O nanoparticles and the UV-Vis absorption spectra showed that the Cu₂O/TNTs display a better ability for visible light absorption compared to the pure TNTs. CO₂ photocatalytic reduction experiments carried out by using Cu₂O/TNT nanocomposites proved that Cu₂O/TNTs exhibit high photocatalytic activity in conversion of CO₂ to methanol, while pure TNT arrays were almost inactive. Furthermore, Cu₂O/TNTs also exhibited augmented activity in degradation of target organic pollutant like acid orange (AO) under visible light irradiation. The ultra enhanced photocatalytic activity noticed by using Cu₂O/TNTs in CO₂ reduction and degradation of organic pollutant could be attributed to the formation of Cu₂O/TiO ₂ heterostructures with higher charge separation efficiency.

Original language	English
Pages (from-to)	17-21
Number of pages	5
Journal	Catalysis Communications
Volume	46
DOIs	https://doi.org/10.1016/j.catcom.2013.11.011
State	Published - 10 Feb 2014

Bibliographical note

Funding Information:
The work is financially supported by the National Natural Science Foundation of China (No. 51172109 ) and Jiangsu province Natural Science Foundation (No. BK2010497 ). Prof. Gondal is thankful to KFUPM for supporting this work under project #RG1011-1/2.

Keywords

CO photocatalytic reduction to methanol
CuO/TiO heterostructures
Degradation of organic pollutants (dyes)
Electrodeposition

ASJC Scopus subject areas

Catalysis
General Chemistry
Process Chemistry and Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.catcom.2013.11.011

Cite this

@article{84a99b5fdf2a4582aa73347a425cf1e5,

title = "Cu2O/TiO2 heterostructure nanotube arrays prepared by an electrodeposition method exhibiting enhanced photocatalytic activity for CO2 reduction to methanol",

abstract = "Cu2O/TiO2 composite nanotube arrays demonstrating enhanced photocatalytic performance were synthesized using an electrodeposition method to impregnate the p-type Cu2O into the n-type titanium dioxide nanotube arrays (TNTs). The morphological results confirmed that the TNTs are wrapped by the Cu2O nanoparticles and the UV-Vis absorption spectra showed that the Cu2O/TNTs display a better ability for visible light absorption compared to the pure TNTs. CO2 photocatalytic reduction experiments carried out by using Cu2O/TNT nanocomposites proved that Cu2O/TNTs exhibit high photocatalytic activity in conversion of CO2 to methanol, while pure TNT arrays were almost inactive. Furthermore, Cu2O/TNTs also exhibited augmented activity in degradation of target organic pollutant like acid orange (AO) under visible light irradiation. The ultra enhanced photocatalytic activity noticed by using Cu2O/TNTs in CO2 reduction and degradation of organic pollutant could be attributed to the formation of Cu2O/TiO 2 heterostructures with higher charge separation efficiency.",

keywords = "CO photocatalytic reduction to methanol, CuO/TiO heterostructures, Degradation of organic pollutants (dyes), Electrodeposition",

author = "Junyi Wang and Guangbin Ji and Yousong Liu and Gondal, \{M. A.\} and Xiaofeng Chang",

note = "Funding Information: The work is financially supported by the National Natural Science Foundation of China (No. 51172109 ) and Jiangsu province Natural Science Foundation (No. BK2010497 ). Prof. Gondal is thankful to KFUPM for supporting this work under project \#RG1011-1/2. ",

year = "2014",

month = feb,

day = "10",

doi = "10.1016/j.catcom.2013.11.011",

language = "English",

volume = "46",

pages = "17--21",

journal = "Catalysis Communications",

issn = "1566-7367",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Cu2O/TiO2 heterostructure nanotube arrays prepared by an electrodeposition method exhibiting enhanced photocatalytic activity for CO2 reduction to methanol

AU - Wang, Junyi

AU - Ji, Guangbin

AU - Liu, Yousong

AU - Gondal, M. A.

AU - Chang, Xiaofeng

N1 - Funding Information: The work is financially supported by the National Natural Science Foundation of China (No. 51172109 ) and Jiangsu province Natural Science Foundation (No. BK2010497 ). Prof. Gondal is thankful to KFUPM for supporting this work under project #RG1011-1/2.

PY - 2014/2/10

Y1 - 2014/2/10

N2 - Cu2O/TiO2 composite nanotube arrays demonstrating enhanced photocatalytic performance were synthesized using an electrodeposition method to impregnate the p-type Cu2O into the n-type titanium dioxide nanotube arrays (TNTs). The morphological results confirmed that the TNTs are wrapped by the Cu2O nanoparticles and the UV-Vis absorption spectra showed that the Cu2O/TNTs display a better ability for visible light absorption compared to the pure TNTs. CO2 photocatalytic reduction experiments carried out by using Cu2O/TNT nanocomposites proved that Cu2O/TNTs exhibit high photocatalytic activity in conversion of CO2 to methanol, while pure TNT arrays were almost inactive. Furthermore, Cu2O/TNTs also exhibited augmented activity in degradation of target organic pollutant like acid orange (AO) under visible light irradiation. The ultra enhanced photocatalytic activity noticed by using Cu2O/TNTs in CO2 reduction and degradation of organic pollutant could be attributed to the formation of Cu2O/TiO 2 heterostructures with higher charge separation efficiency.

AB - Cu2O/TiO2 composite nanotube arrays demonstrating enhanced photocatalytic performance were synthesized using an electrodeposition method to impregnate the p-type Cu2O into the n-type titanium dioxide nanotube arrays (TNTs). The morphological results confirmed that the TNTs are wrapped by the Cu2O nanoparticles and the UV-Vis absorption spectra showed that the Cu2O/TNTs display a better ability for visible light absorption compared to the pure TNTs. CO2 photocatalytic reduction experiments carried out by using Cu2O/TNT nanocomposites proved that Cu2O/TNTs exhibit high photocatalytic activity in conversion of CO2 to methanol, while pure TNT arrays were almost inactive. Furthermore, Cu2O/TNTs also exhibited augmented activity in degradation of target organic pollutant like acid orange (AO) under visible light irradiation. The ultra enhanced photocatalytic activity noticed by using Cu2O/TNTs in CO2 reduction and degradation of organic pollutant could be attributed to the formation of Cu2O/TiO 2 heterostructures with higher charge separation efficiency.

KW - CO photocatalytic reduction to methanol

KW - CuO/TiO heterostructures

KW - Degradation of organic pollutants (dyes)

KW - Electrodeposition

UR - https://www.scopus.com/pages/publications/84890090824

U2 - 10.1016/j.catcom.2013.11.011

DO - 10.1016/j.catcom.2013.11.011

M3 - Article

AN - SCOPUS:84890090824

SN - 1566-7367

VL - 46

SP - 17

EP - 21

JO - Catalysis Communications

JF - Catalysis Communications

ER -