Preparation and characterization of Cu2O/TiO2 nanotube for photocatalytic system

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  • Department of Chemical Engineering,Northeast Petroleum University,Daqing 163318

Online published: 2020-12-07

Abstract

The defects of titanium dioxide(TiO2) nanotubes,including the wider band gap and higher photogenerated electron-hole recombination rate,limit the utilization rate of photogenerated electrons.Therefore,the photocatalytic activity of nanotubes can be effectively improved by modification with semiconductors.Cu2O loaded TiO2 nanomaterials were prepared by drip-calcination method.A series of Cu2O/TiO2 nanotubes were prepared by changing the concentration of NaOH in the precursor solution.The characterizations shown that TiO2 nanotubes prepared by anodic oxidation possessed regular structure,and the micro-structure was not destroyed after modification.However,with the increase of loading amount,Cu2O particles on the surface of TiO2 nanotubes accumulated,the photogenerated current density increased firstly and then decreased with the increase of Cu2O loading amount.When the concentration of NaOH was 0.2mol/L,the photo-generated current density reached a maximum value (0.6mA/cm2).When the concentration of NaOH was 0.3mol/L,the Cu2O/TiO2 nanotubes had the best degradation effect on Rh B.

Cite this article

Chen Qihui, Wang Xueqin . Preparation and characterization of Cu2O/TiO2 nanotube for photocatalytic system[J]. New Chemical Materials, 2020 , 48(11) : 112 -116 . DOI: 10.19817/j.cnki.issn 1006-3536.2020.11.025

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