Facile post-synthesis and photocatalytic activity of N-doped ZnO-SBA-15

Vien Vo; Thu Phuong Tran Thi; Ha Yeong Kim; Sung Jin Kim

doi:10.1016/j.jpcs.2013.11.011

Facile post-synthesis and photocatalytic activity of N-doped ZnO-SBA-15

Vien Vo, Thu Phuong Tran Thi, Ha Yeong Kim, Sung Jin Kim

Department of Chemistry & Nanoscience

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

24 Scopus citations

Abstract

N-doped ZnO-SBA-15 materials (denoted as nN-xZnO-SBA-15, where n is number of urea treatments and x is the weight ratio of ZnO/(ZnO+SBA-15)) were successfully synthesized by a two-step procedure. First, xZnO-SBA-15 was prepared by impregnating SBA-15 with Zn(NO₃)₂, followed by calcinating at 550 C. In the second step, xZnO-SBA-15 was modified n times by doping nitrogen with the assistance of urea. The resulting nN-xZnO-SBA-15 materials prepared with various numbers of urea treatments were characterized by XRD, TEM, SEM, EDS, N₂ adsorption/desorption at 77 K, diffuse reflectance UV-vis, and XPS. The results show that the nN-xZnO-SBA-15 maintains its ordered hexagonal mesostructure and exhibits light absorbance in the visible region. The nN-xZnO-SBA-15 samples were investigated with the photodegradation of methylene blue under visible light, and exhibited significant photocatalytic activity. The kinetics of the reaction obeyed the Langmuir-Hinshelwood model.

Original language	English
Pages (from-to)	403-409
Number of pages	7
Journal	Journal of Physics and Chemistry of Solids
Volume	75
Issue number	3
DOIs	https://doi.org/10.1016/j.jpcs.2013.11.011
State	Published - Mar 2014

Bibliographical note

Funding Information:
Financial support from the National Research Foundation of Korea Grant funded by the Korean Government ( 20110001341 ) and the National Foundation for Science and Technology Development of Viet Nam (NAFOSTED, 104.03.2011.11 ) is gratefully acknowledged.

Keywords

A: Nanostructures
B: Semiconductors
C: Sol-gel growth
D: X-ray diffraction
E: Optical properties

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title = "Facile post-synthesis and photocatalytic activity of N-doped ZnO-SBA-15",

abstract = "N-doped ZnO-SBA-15 materials (denoted as nN-xZnO-SBA-15, where n is number of urea treatments and x is the weight ratio of ZnO/(ZnO+SBA-15)) were successfully synthesized by a two-step procedure. First, xZnO-SBA-15 was prepared by impregnating SBA-15 with Zn(NO3)2, followed by calcinating at 550 C. In the second step, xZnO-SBA-15 was modified n times by doping nitrogen with the assistance of urea. The resulting nN-xZnO-SBA-15 materials prepared with various numbers of urea treatments were characterized by XRD, TEM, SEM, EDS, N2 adsorption/desorption at 77 K, diffuse reflectance UV-vis, and XPS. The results show that the nN-xZnO-SBA-15 maintains its ordered hexagonal mesostructure and exhibits light absorbance in the visible region. The nN-xZnO-SBA-15 samples were investigated with the photodegradation of methylene blue under visible light, and exhibited significant photocatalytic activity. The kinetics of the reaction obeyed the Langmuir-Hinshelwood model.",

keywords = "A: Nanostructures, B: Semiconductors, C: Sol-gel growth, D: X-ray diffraction, E: Optical properties",

author = "Vien Vo and {Tran Thi}, {Thu Phuong} and Kim, {Ha Yeong} and Kim, {Sung Jin}",

note = "Funding Information: Financial support from the National Research Foundation of Korea Grant funded by the Korean Government ( 20110001341 ) and the National Foundation for Science and Technology Development of Viet Nam (NAFOSTED, 104.03.2011.11 ) is gratefully acknowledged.",

year = "2014",

month = mar,

doi = "10.1016/j.jpcs.2013.11.011",

language = "English",

volume = "75",

pages = "403--409",

journal = "Journal of Physics and Chemistry of Solids",

issn = "0022-3697",

publisher = "Elsevier Ltd.",

number = "3",

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TY - JOUR

T1 - Facile post-synthesis and photocatalytic activity of N-doped ZnO-SBA-15

AU - Vo, Vien

AU - Tran Thi, Thu Phuong

AU - Kim, Ha Yeong

AU - Kim, Sung Jin

N1 - Funding Information: Financial support from the National Research Foundation of Korea Grant funded by the Korean Government ( 20110001341 ) and the National Foundation for Science and Technology Development of Viet Nam (NAFOSTED, 104.03.2011.11 ) is gratefully acknowledged.

PY - 2014/3

Y1 - 2014/3

N2 - N-doped ZnO-SBA-15 materials (denoted as nN-xZnO-SBA-15, where n is number of urea treatments and x is the weight ratio of ZnO/(ZnO+SBA-15)) were successfully synthesized by a two-step procedure. First, xZnO-SBA-15 was prepared by impregnating SBA-15 with Zn(NO3)2, followed by calcinating at 550 C. In the second step, xZnO-SBA-15 was modified n times by doping nitrogen with the assistance of urea. The resulting nN-xZnO-SBA-15 materials prepared with various numbers of urea treatments were characterized by XRD, TEM, SEM, EDS, N2 adsorption/desorption at 77 K, diffuse reflectance UV-vis, and XPS. The results show that the nN-xZnO-SBA-15 maintains its ordered hexagonal mesostructure and exhibits light absorbance in the visible region. The nN-xZnO-SBA-15 samples were investigated with the photodegradation of methylene blue under visible light, and exhibited significant photocatalytic activity. The kinetics of the reaction obeyed the Langmuir-Hinshelwood model.

AB - N-doped ZnO-SBA-15 materials (denoted as nN-xZnO-SBA-15, where n is number of urea treatments and x is the weight ratio of ZnO/(ZnO+SBA-15)) were successfully synthesized by a two-step procedure. First, xZnO-SBA-15 was prepared by impregnating SBA-15 with Zn(NO3)2, followed by calcinating at 550 C. In the second step, xZnO-SBA-15 was modified n times by doping nitrogen with the assistance of urea. The resulting nN-xZnO-SBA-15 materials prepared with various numbers of urea treatments were characterized by XRD, TEM, SEM, EDS, N2 adsorption/desorption at 77 K, diffuse reflectance UV-vis, and XPS. The results show that the nN-xZnO-SBA-15 maintains its ordered hexagonal mesostructure and exhibits light absorbance in the visible region. The nN-xZnO-SBA-15 samples were investigated with the photodegradation of methylene blue under visible light, and exhibited significant photocatalytic activity. The kinetics of the reaction obeyed the Langmuir-Hinshelwood model.

KW - A: Nanostructures

KW - B: Semiconductors

KW - C: Sol-gel growth

KW - D: X-ray diffraction

KW - E: Optical properties

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JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 3

ER -

Facile post-synthesis and photocatalytic activity of N-doped ZnO-SBA-15

Abstract

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Keywords

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