Reduced graphene oxide/ZnO nanohybrids: Metallic Zn powder induced one-step synthesis for enhanced photocurrent and photocatalytic response

Na Song; Huiqing Fan; Hailin Tian

doi:10.1016/j.apsusc.2015.06.062

Reduced graphene oxide/ZnO nanohybrids: Metallic Zn powder induced one-step synthesis for enhanced photocurrent and photocatalytic response

Na Song
, Huiqing Fan
, Hailin Tian

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

74 Scopus citations

Abstract

Reduced graphene oxide hybridized hierarchical ZnO nanorods (RGO/ZnO) were fabricated through thermal treatment of aqueous solution containing metallic Zn powder, Zn(NO ₃ ) ₂ ·6H ₂ O, graphene oxide (GO), and NaOH at 110 °C. This one-spot, additives-free method successfully made metallic Zn powder a reducing agent of GO, a precursor of ZnO, and also a morphology controller of RGO/ZnO. RGO/ZnO nanohybrids with 4 wt-% of RGO displayed optimal photocurrent and photocatalytic response under UV irradiation with 10 times and 2.2 times that of pure ZnO nanoflowers, respectively. Strong coupling and electronic interaction between GO and ZnO were verified by using XPS measurement and photoelectrochemical technique. The combination of supreme absorption (of UV light and dye), suppressed photogenerated carriers recombination, and decreased solid interlayer resistance of nanohybrids contributed to their superior photochemical properties.

Original language	English
Pages (from-to)	580-587
Number of pages	8
Journal	Applied Surface Science
Volume	353
DOIs	https://doi.org/10.1016/j.apsusc.2015.06.062
State	Published - 30 Oct 2015

Keywords

Electronic interaction
Hierarchical ZnO nanorods
Photocatalytic
Reduced graphene oxide

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10.1016/j.apsusc.2015.06.062

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@article{d9c777c3aead4efd8b359bf4528e6927,

title = "Reduced graphene oxide/ZnO nanohybrids: Metallic Zn powder induced one-step synthesis for enhanced photocurrent and photocatalytic response",

abstract = " Reduced graphene oxide hybridized hierarchical ZnO nanorods (RGO/ZnO) were fabricated through thermal treatment of aqueous solution containing metallic Zn powder, Zn(NO 3 ) 2 ·6H 2 O, graphene oxide (GO), and NaOH at 110 °C. This one-spot, additives-free method successfully made metallic Zn powder a reducing agent of GO, a precursor of ZnO, and also a morphology controller of RGO/ZnO. RGO/ZnO nanohybrids with 4 wt-\% of RGO displayed optimal photocurrent and photocatalytic response under UV irradiation with 10 times and 2.2 times that of pure ZnO nanoflowers, respectively. Strong coupling and electronic interaction between GO and ZnO were verified by using XPS measurement and photoelectrochemical technique. The combination of supreme absorption (of UV light and dye), suppressed photogenerated carriers recombination, and decreased solid interlayer resistance of nanohybrids contributed to their superior photochemical properties.",

keywords = "Electronic interaction, Hierarchical ZnO nanorods, Photocatalytic, Reduced graphene oxide",

author = "Na Song and Huiqing Fan and Hailin Tian",

year = "2015",

month = oct,

day = "30",

doi = "10.1016/j.apsusc.2015.06.062",

language = "英语",

volume = "353",

pages = "580--587",

journal = "Applied Surface Science",

issn = "0169-4332",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Reduced graphene oxide/ZnO nanohybrids

T2 - Metallic Zn powder induced one-step synthesis for enhanced photocurrent and photocatalytic response

AU - Song, Na

AU - Fan, Huiqing

AU - Tian, Hailin

PY - 2015/10/30

Y1 - 2015/10/30

N2 - Reduced graphene oxide hybridized hierarchical ZnO nanorods (RGO/ZnO) were fabricated through thermal treatment of aqueous solution containing metallic Zn powder, Zn(NO 3 ) 2 ·6H 2 O, graphene oxide (GO), and NaOH at 110 °C. This one-spot, additives-free method successfully made metallic Zn powder a reducing agent of GO, a precursor of ZnO, and also a morphology controller of RGO/ZnO. RGO/ZnO nanohybrids with 4 wt-% of RGO displayed optimal photocurrent and photocatalytic response under UV irradiation with 10 times and 2.2 times that of pure ZnO nanoflowers, respectively. Strong coupling and electronic interaction between GO and ZnO were verified by using XPS measurement and photoelectrochemical technique. The combination of supreme absorption (of UV light and dye), suppressed photogenerated carriers recombination, and decreased solid interlayer resistance of nanohybrids contributed to their superior photochemical properties.

AB - Reduced graphene oxide hybridized hierarchical ZnO nanorods (RGO/ZnO) were fabricated through thermal treatment of aqueous solution containing metallic Zn powder, Zn(NO 3 ) 2 ·6H 2 O, graphene oxide (GO), and NaOH at 110 °C. This one-spot, additives-free method successfully made metallic Zn powder a reducing agent of GO, a precursor of ZnO, and also a morphology controller of RGO/ZnO. RGO/ZnO nanohybrids with 4 wt-% of RGO displayed optimal photocurrent and photocatalytic response under UV irradiation with 10 times and 2.2 times that of pure ZnO nanoflowers, respectively. Strong coupling and electronic interaction between GO and ZnO were verified by using XPS measurement and photoelectrochemical technique. The combination of supreme absorption (of UV light and dye), suppressed photogenerated carriers recombination, and decreased solid interlayer resistance of nanohybrids contributed to their superior photochemical properties.

KW - Electronic interaction

KW - Hierarchical ZnO nanorods

KW - Photocatalytic

KW - Reduced graphene oxide

UR - https://www.scopus.com/pages/publications/84941964385

U2 - 10.1016/j.apsusc.2015.06.062

DO - 10.1016/j.apsusc.2015.06.062

M3 - 文章

AN - SCOPUS:84941964385

SN - 0169-4332

VL - 353

SP - 580

EP - 587

JO - Applied Surface Science

JF - Applied Surface Science

ER -

Reduced graphene oxide/ZnO nanohybrids: Metallic Zn powder induced one-step synthesis for enhanced photocurrent and photocatalytic response

Abstract

Keywords

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