Fabrication of wheat grain textured TiO2/CuO composite nanofibers for enhanced solar H2 generation and degradation performance

Liangliang Zhu; Minghui Hong; Ghim Wei Ho

doi:10.1016/j.nanoen.2014.09.032

Fabrication of wheat grain textured TiO₂/CuO composite nanofibers for enhanced solar H₂ generation and degradation performance

Liangliang Zhu, Minghui Hong, Ghim Wei Ho

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

173 Scopus citations

Abstract

We report herein a simple, low-cost and scalable fabrication of unique wheat grain-like textured TiO₂/CuO composite nanofibers (NFs) by electrospinning. Unlike conventional surface coupling/loading of co-catalyst nanoparticles, incorporation of copper nanoparticles during the electrospinning of TiO₂ NFs ensures good stability and recyclability due to resistance against nanoparticles leaching. Optimization of electrospun NFs shows that TiO₂/CuO composite NFs with 2.5wt% copper nanoparticles, annealed at 500°C exhibit highly textured structure with enhanced photocatalytic H₂ generation of 16.8 times higher than that of bare TiO₂ NFs. Furthermore, the electrospun TiO₂/CuO composite NFs demonstrate favorable photodegradation activity. The ease of tuning morphology and its heterostructure composite as well as separation and recovery of the fibrous photocatalyst after photoreaction renders immense potential to remedy global environmental and energy issues.

Original language	English
Pages (from-to)	28-37
Number of pages	10
Journal	Nano Energy
Volume	11
DOIs	https://doi.org/10.1016/j.nanoen.2014.09.032
State	Published - 1 Jan 2015
Externally published	Yes

Keywords

Hydrogen
Photocatalyst
Textured nanofibers
TiO/CuO nanocomposite

UN SDGs

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

Access to Document

10.1016/j.nanoen.2014.09.032

Cite this

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title = "Fabrication of wheat grain textured TiO2/CuO composite nanofibers for enhanced solar H2 generation and degradation performance",

abstract = "We report herein a simple, low-cost and scalable fabrication of unique wheat grain-like textured TiO2/CuO composite nanofibers (NFs) by electrospinning. Unlike conventional surface coupling/loading of co-catalyst nanoparticles, incorporation of copper nanoparticles during the electrospinning of TiO2 NFs ensures good stability and recyclability due to resistance against nanoparticles leaching. Optimization of electrospun NFs shows that TiO2/CuO composite NFs with 2.5wt% copper nanoparticles, annealed at 500°C exhibit highly textured structure with enhanced photocatalytic H2 generation of 16.8 times higher than that of bare TiO2 NFs. Furthermore, the electrospun TiO2/CuO composite NFs demonstrate favorable photodegradation activity. The ease of tuning morphology and its heterostructure composite as well as separation and recovery of the fibrous photocatalyst after photoreaction renders immense potential to remedy global environmental and energy issues.",

keywords = "Hydrogen, Photocatalyst, Textured nanofibers, TiO/CuO nanocomposite",

author = "Liangliang Zhu and Minghui Hong and Ho, {Ghim Wei}",

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AU - Zhu, Liangliang

AU - Hong, Minghui

AU - Ho, Ghim Wei

PY - 2015/1/1

Y1 - 2015/1/1

N2 - We report herein a simple, low-cost and scalable fabrication of unique wheat grain-like textured TiO2/CuO composite nanofibers (NFs) by electrospinning. Unlike conventional surface coupling/loading of co-catalyst nanoparticles, incorporation of copper nanoparticles during the electrospinning of TiO2 NFs ensures good stability and recyclability due to resistance against nanoparticles leaching. Optimization of electrospun NFs shows that TiO2/CuO composite NFs with 2.5wt% copper nanoparticles, annealed at 500°C exhibit highly textured structure with enhanced photocatalytic H2 generation of 16.8 times higher than that of bare TiO2 NFs. Furthermore, the electrospun TiO2/CuO composite NFs demonstrate favorable photodegradation activity. The ease of tuning morphology and its heterostructure composite as well as separation and recovery of the fibrous photocatalyst after photoreaction renders immense potential to remedy global environmental and energy issues.

AB - We report herein a simple, low-cost and scalable fabrication of unique wheat grain-like textured TiO2/CuO composite nanofibers (NFs) by electrospinning. Unlike conventional surface coupling/loading of co-catalyst nanoparticles, incorporation of copper nanoparticles during the electrospinning of TiO2 NFs ensures good stability and recyclability due to resistance against nanoparticles leaching. Optimization of electrospun NFs shows that TiO2/CuO composite NFs with 2.5wt% copper nanoparticles, annealed at 500°C exhibit highly textured structure with enhanced photocatalytic H2 generation of 16.8 times higher than that of bare TiO2 NFs. Furthermore, the electrospun TiO2/CuO composite NFs demonstrate favorable photodegradation activity. The ease of tuning morphology and its heterostructure composite as well as separation and recovery of the fibrous photocatalyst after photoreaction renders immense potential to remedy global environmental and energy issues.

KW - Hydrogen

KW - Photocatalyst

KW - Textured nanofibers

KW - TiO/CuO nanocomposite

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