One-pot hydrothermal synthesis of ZnO-reduced graphene oxide composites using Zn powders for enhanced photocatalysis

Zn powder was successfully utilized as a reducing agent and a precursor of ZnO for one-pot synthesis of reduced graphene oxide (rGO)–ZnO photocatalysts. Two rGO–ZnO composites were synthesized with or without a surfactant, cetyltrimethyl ammonium bromide (CTAB). The structural, morphological, and ph...

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Main Authors: Liu, Shizhen, Sun, Hongqi, Suvorova, A., Wang, Shaobin
Format: Journal Article
Published: Elsevier BV 2013
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/36917
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author Liu, Shizhen
Sun, Hongqi
Suvorova, A.
Wang, Shaobin
author_facet Liu, Shizhen
Sun, Hongqi
Suvorova, A.
Wang, Shaobin
author_sort Liu, Shizhen
building Curtin Institutional Repository
collection Online Access
description Zn powder was successfully utilized as a reducing agent and a precursor of ZnO for one-pot synthesis of reduced graphene oxide (rGO)–ZnO photocatalysts. Two rGO–ZnO composites were synthesized with or without a surfactant, cetyltrimethyl ammonium bromide (CTAB). The structural, morphological, and photochemical properties of the samples were thoroughly investigated by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), N2 adsorption/desorption, UV–vis diffuse reflectance (UV–vis DRS), thermogravimetric-differential thermal analysis (TG-DTA), and Raman spectroscopy. Zn powder could effectively reduce GO to graphene and be transformed to ZnO with the assistance of the surfactant.The surfactant was found to influence the properties of rGO–ZnO. rGO–ZnO photocatalysts could decompose methylene blue under UV–vis illumination and exhibited higher activities than pristine ZnO. The coexistence of GO–rGO would be more favorable to photocatalysis.
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spelling curtin-20.500.11937-369172019-02-19T05:35:35Z One-pot hydrothermal synthesis of ZnO-reduced graphene oxide composites using Zn powders for enhanced photocatalysis Liu, Shizhen Sun, Hongqi Suvorova, A. Wang, Shaobin Photocatalysis Methylene blue Zno Reduced graphene oxide Zn powder was successfully utilized as a reducing agent and a precursor of ZnO for one-pot synthesis of reduced graphene oxide (rGO)–ZnO photocatalysts. Two rGO–ZnO composites were synthesized with or without a surfactant, cetyltrimethyl ammonium bromide (CTAB). The structural, morphological, and photochemical properties of the samples were thoroughly investigated by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), N2 adsorption/desorption, UV–vis diffuse reflectance (UV–vis DRS), thermogravimetric-differential thermal analysis (TG-DTA), and Raman spectroscopy. Zn powder could effectively reduce GO to graphene and be transformed to ZnO with the assistance of the surfactant.The surfactant was found to influence the properties of rGO–ZnO. rGO–ZnO photocatalysts could decompose methylene blue under UV–vis illumination and exhibited higher activities than pristine ZnO. The coexistence of GO–rGO would be more favorable to photocatalysis. 2013 Journal Article http://hdl.handle.net/20.500.11937/36917 10.1016/j.cej.2013.06.063 Elsevier BV fulltext
spellingShingle Photocatalysis
Methylene blue
Zno
Reduced graphene oxide
Liu, Shizhen
Sun, Hongqi
Suvorova, A.
Wang, Shaobin
One-pot hydrothermal synthesis of ZnO-reduced graphene oxide composites using Zn powders for enhanced photocatalysis
title One-pot hydrothermal synthesis of ZnO-reduced graphene oxide composites using Zn powders for enhanced photocatalysis
title_full One-pot hydrothermal synthesis of ZnO-reduced graphene oxide composites using Zn powders for enhanced photocatalysis
title_fullStr One-pot hydrothermal synthesis of ZnO-reduced graphene oxide composites using Zn powders for enhanced photocatalysis
title_full_unstemmed One-pot hydrothermal synthesis of ZnO-reduced graphene oxide composites using Zn powders for enhanced photocatalysis
title_short One-pot hydrothermal synthesis of ZnO-reduced graphene oxide composites using Zn powders for enhanced photocatalysis
title_sort one-pot hydrothermal synthesis of zno-reduced graphene oxide composites using zn powders for enhanced photocatalysis
topic Photocatalysis
Methylene blue
Zno
Reduced graphene oxide
url http://hdl.handle.net/20.500.11937/36917