Enhanced visible light photocatalytic activity and hydrogen evolution through novel heterostructure AgI-FG-TiO2 nanocomposites

Kefayat Ullah; Arif Ullah; Ali Aldalbahi; Jin Do Chung; Won Chun Oh

doi:10.1016/j.molcata.2015.09.024

Enhanced visible light photocatalytic activity and hydrogen evolution through novel heterostructure AgI-FG-TiO₂ nanocomposites

Kefayat Ullah, Arif Ullah, Ali Aldalbahi, Jin Do Chung, Won Chun Oh^*

^*Corresponding author for this work

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

15 Citations (Scopus)

Abstract

We report ternary AgI-FG-TiO₂ nanocomposites prepared through fast microwave technique. In this study we introduced a novel chemical vapor deposition (CVD) approach to functionalize powder graphene oxide (GO). The functionalize graphene (FG) sheets were then used for the attachment of AgI and TiO₂ nanoparticles to form a ternary composites. The prepared composites were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), Raman spectroscopic analysis, X-ray diffraction (XRD), UV-vis absorbance spectra and UV-vis diffuse reflectance spectra (DRS). The photocatalytic activity for hydrogen evolution was greatly affected by the introduction of FG and ternary component in the system.

Original language	English
Pages (from-to)	242-252
Number of pages	11
Journal	Journal of Molecular Catalysis A: Chemical
Volume	410
DOIs	https://doi.org/10.1016/j.molcata.2015.09.024
Publication status	Published - 15 Dec 2015
Externally published	Yes

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10.1016/j.molcata.2015.09.024

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title = "Enhanced visible light photocatalytic activity and hydrogen evolution through novel heterostructure AgI-FG-TiO2 nanocomposites",

abstract = "We report ternary AgI-FG-TiO2 nanocomposites prepared through fast microwave technique. In this study we introduced a novel chemical vapor deposition (CVD) approach to functionalize powder graphene oxide (GO). The functionalize graphene (FG) sheets were then used for the attachment of AgI and TiO2 nanoparticles to form a ternary composites. The prepared composites were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), Raman spectroscopic analysis, X-ray diffraction (XRD), UV-vis absorbance spectra and UV-vis diffuse reflectance spectra (DRS). The photocatalytic activity for hydrogen evolution was greatly affected by the introduction of FG and ternary component in the system.",

keywords = "Graphene, Hydrogen evolution, Nanocomposites, Photocatalyst, Raman",

author = "Kefayat Ullah and Arif Ullah and Ali Aldalbahi and Chung, \{Jin Do\} and Oh, \{Won Chun\}",

year = "2015",

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day = "15",

doi = "10.1016/j.molcata.2015.09.024",

language = "English",

volume = "410",

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journal = "Journal of Molecular Catalysis A: Chemical",

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publisher = "Elsevier B.V.",

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T1 - Enhanced visible light photocatalytic activity and hydrogen evolution through novel heterostructure AgI-FG-TiO2 nanocomposites

AU - Ullah, Kefayat

AU - Ullah, Arif

AU - Aldalbahi, Ali

AU - Chung, Jin Do

AU - Oh, Won Chun

PY - 2015/12/15

Y1 - 2015/12/15

N2 - We report ternary AgI-FG-TiO2 nanocomposites prepared through fast microwave technique. In this study we introduced a novel chemical vapor deposition (CVD) approach to functionalize powder graphene oxide (GO). The functionalize graphene (FG) sheets were then used for the attachment of AgI and TiO2 nanoparticles to form a ternary composites. The prepared composites were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), Raman spectroscopic analysis, X-ray diffraction (XRD), UV-vis absorbance spectra and UV-vis diffuse reflectance spectra (DRS). The photocatalytic activity for hydrogen evolution was greatly affected by the introduction of FG and ternary component in the system.

AB - We report ternary AgI-FG-TiO2 nanocomposites prepared through fast microwave technique. In this study we introduced a novel chemical vapor deposition (CVD) approach to functionalize powder graphene oxide (GO). The functionalize graphene (FG) sheets were then used for the attachment of AgI and TiO2 nanoparticles to form a ternary composites. The prepared composites were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), Raman spectroscopic analysis, X-ray diffraction (XRD), UV-vis absorbance spectra and UV-vis diffuse reflectance spectra (DRS). The photocatalytic activity for hydrogen evolution was greatly affected by the introduction of FG and ternary component in the system.

KW - Graphene

KW - Hydrogen evolution

KW - Nanocomposites

KW - Photocatalyst

KW - Raman

UR - https://www.scopus.com/pages/publications/84944063306

U2 - 10.1016/j.molcata.2015.09.024

DO - 10.1016/j.molcata.2015.09.024

M3 - Article

SN - 1381-1169

VL - 410

SP - 242

EP - 252

JO - Journal of Molecular Catalysis A: Chemical

JF - Journal of Molecular Catalysis A: Chemical

ER -

Enhanced visible light photocatalytic activity and hydrogen evolution through novel heterostructure AgI-FG-TiO₂ nanocomposites

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