Large scale preparing carbon nanotube/zinc oxide hybrid and its application for highly reusable photocatalyst

Kai Dai; Graham Dawson; Song Yang; Zheng Chen; Luhua Lu

doi:10.1016/j.cej.2012.03.008

Large scale preparing carbon nanotube/zinc oxide hybrid and its application for highly reusable photocatalyst

Kai Dai^*, Graham Dawson, Song Yang, Zheng Chen, Luhua Lu

^*Corresponding author for this work

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

129 Citations (Scopus)

Abstract

Multi-walled carbon nanotube (MWCNT)/zinc oxide (ZnO) hybrid were large scale synthesized by the reflux method in ethylene glycol with the aid of polyvinylpolypyrrolidone (PVP). The MWCNT/ZnO hybrid was characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy spectra (EDS), X-ray photoelectron spectra (XPS), X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM), which have indicated uniform hybrid structure of 18. nm diameter ZnO coating on MWCNT surface. The photocatalytic performance of ZnO nanoparticles and the MWCNT/ZnO hybrid were investigated by removal of methylene blue. Consistent with the shift of its UV-vis diffuse reflectance spectroscopy (DRS) to shorter wavelengths, the heterostructure of MWCNT/ZnO hybrid induces an improvement in photocatalytic performance. The stability of the hybrid was characterized through cyclic photocatalytic test. Results indicated no observable performance degradation for MWCNT/ZnO photocatalyst even after ten recycles.

Original language	English
Pages (from-to)	571-578
Number of pages	8
Journal	Chemical Engineering Journal
Volume	191
DOIs	https://doi.org/10.1016/j.cej.2012.03.008
Publication status	Published - 15 May 2012
Externally published	Yes

Keywords

Activity
Carbon nanotube/ZnO
Characterization
Photocatalyst
Preparation

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10.1016/j.cej.2012.03.008

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title = "Large scale preparing carbon nanotube/zinc oxide hybrid and its application for highly reusable photocatalyst",

abstract = "Multi-walled carbon nanotube (MWCNT)/zinc oxide (ZnO) hybrid were large scale synthesized by the reflux method in ethylene glycol with the aid of polyvinylpolypyrrolidone (PVP). The MWCNT/ZnO hybrid was characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy spectra (EDS), X-ray photoelectron spectra (XPS), X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM), which have indicated uniform hybrid structure of 18. nm diameter ZnO coating on MWCNT surface. The photocatalytic performance of ZnO nanoparticles and the MWCNT/ZnO hybrid were investigated by removal of methylene blue. Consistent with the shift of its UV-vis diffuse reflectance spectroscopy (DRS) to shorter wavelengths, the heterostructure of MWCNT/ZnO hybrid induces an improvement in photocatalytic performance. The stability of the hybrid was characterized through cyclic photocatalytic test. Results indicated no observable performance degradation for MWCNT/ZnO photocatalyst even after ten recycles.",

keywords = "Activity, Carbon nanotube/ZnO, Characterization, Photocatalyst, Preparation",

author = "Kai Dai and Graham Dawson and Song Yang and Zheng Chen and Luhua Lu",

note = "Funding Information: This work was supported by the National Natural Science Foundation of China ( 20803051 ), the key Foundation of Educational Commission of Anhui Province ( KJ2012A250 ), the Youth Foundation of Huaibei Normal University ( 700432 ), the Huaibei Science and Technology Development Funds ( 20110305 ) and the Natural Science Foundation of Jiangsu Province ( BK2010258 ).",

year = "2012",

month = may,

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doi = "10.1016/j.cej.2012.03.008",

language = "English",

volume = "191",

pages = "571--578",

journal = "Chemical Engineering Journal",

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T1 - Large scale preparing carbon nanotube/zinc oxide hybrid and its application for highly reusable photocatalyst

AU - Dai, Kai

AU - Dawson, Graham

AU - Yang, Song

AU - Chen, Zheng

AU - Lu, Luhua

N1 - Funding Information: This work was supported by the National Natural Science Foundation of China ( 20803051 ), the key Foundation of Educational Commission of Anhui Province ( KJ2012A250 ), the Youth Foundation of Huaibei Normal University ( 700432 ), the Huaibei Science and Technology Development Funds ( 20110305 ) and the Natural Science Foundation of Jiangsu Province ( BK2010258 ).

PY - 2012/5/15

Y1 - 2012/5/15

N2 - Multi-walled carbon nanotube (MWCNT)/zinc oxide (ZnO) hybrid were large scale synthesized by the reflux method in ethylene glycol with the aid of polyvinylpolypyrrolidone (PVP). The MWCNT/ZnO hybrid was characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy spectra (EDS), X-ray photoelectron spectra (XPS), X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM), which have indicated uniform hybrid structure of 18. nm diameter ZnO coating on MWCNT surface. The photocatalytic performance of ZnO nanoparticles and the MWCNT/ZnO hybrid were investigated by removal of methylene blue. Consistent with the shift of its UV-vis diffuse reflectance spectroscopy (DRS) to shorter wavelengths, the heterostructure of MWCNT/ZnO hybrid induces an improvement in photocatalytic performance. The stability of the hybrid was characterized through cyclic photocatalytic test. Results indicated no observable performance degradation for MWCNT/ZnO photocatalyst even after ten recycles.

AB - Multi-walled carbon nanotube (MWCNT)/zinc oxide (ZnO) hybrid were large scale synthesized by the reflux method in ethylene glycol with the aid of polyvinylpolypyrrolidone (PVP). The MWCNT/ZnO hybrid was characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy spectra (EDS), X-ray photoelectron spectra (XPS), X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM), which have indicated uniform hybrid structure of 18. nm diameter ZnO coating on MWCNT surface. The photocatalytic performance of ZnO nanoparticles and the MWCNT/ZnO hybrid were investigated by removal of methylene blue. Consistent with the shift of its UV-vis diffuse reflectance spectroscopy (DRS) to shorter wavelengths, the heterostructure of MWCNT/ZnO hybrid induces an improvement in photocatalytic performance. The stability of the hybrid was characterized through cyclic photocatalytic test. Results indicated no observable performance degradation for MWCNT/ZnO photocatalyst even after ten recycles.

KW - Activity

KW - Carbon nanotube/ZnO

KW - Characterization

KW - Photocatalyst

KW - Preparation

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ER -

Large scale preparing carbon nanotube/zinc oxide hybrid and its application for highly reusable photocatalyst

Abstract

Keywords

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