Titania-pillared molybdenum oxide as a new nanoporous photocatalyst

Joo Hee Kang; Hyun Jung Yeo; Jong Hwa Jeong; Seung Min Paek; Jin Ho Choy

doi:10.1016/j.jpcs.2012.01.021

Titania-pillared molybdenum oxide as a new nanoporous photocatalyst

Joo Hee Kang, Hyun Jung Yeo, Jong Hwa Jeong, Seung Min Paek, Jin Ho Choy

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

Abstract

New nanoporous TiO ₂-MoO ₃ hybrids have been successfully synthesized via an exfoliation and reassembling method. According to the X-ray diffraction (XRD) pattern and transmission electron microscopy (TEM) analysis, quantum-sized titania nanoparticles with an average size of 1 nm were intercalated into the interlayer spaces of layered MoO ₃. Such a regularity of pillars results in a remarkable enhancement of the specific surface area, as confirmed by nitrogen adsorption-desorption measurements. The Langmuir specific surface area (210 m ² g ^-1) of TiO ₂-pillared MoO ₃ hybrid has been determined to be considerably larger than that (10 m ² g ^-1) of the self-restacked MoO ₃. It is evident that adequate intercalation of TiO ₂ nanoparticles into a MoO ₃ lattice gives rise to a highly nanoporous structure. The photocatalytic activity of the present nanoporous hybrid is much superior to that of layered molybdenum oxide alone in terms of the degradation of organic pollutant.

Original language	English
Pages (from-to)	1469-1472
Number of pages	4
Journal	Journal of Physics and Chemistry of Solids
Volume	73
Issue number	12
DOIs	https://doi.org/10.1016/j.jpcs.2012.01.021
State	Published - Dec 2012

Keywords

A. Inorganic compounds
A. Nanostructures
B. Chemical synthesis
C. Electron microscopy
C. X-ray diffraction

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10.1016/j.jpcs.2012.01.021

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title = "Titania-pillared molybdenum oxide as a new nanoporous photocatalyst",

abstract = "New nanoporous TiO 2-MoO 3 hybrids have been successfully synthesized via an exfoliation and reassembling method. According to the X-ray diffraction (XRD) pattern and transmission electron microscopy (TEM) analysis, quantum-sized titania nanoparticles with an average size of 1 nm were intercalated into the interlayer spaces of layered MoO 3. Such a regularity of pillars results in a remarkable enhancement of the specific surface area, as confirmed by nitrogen adsorption-desorption measurements. The Langmuir specific surface area (210 m 2 g -1) of TiO 2-pillared MoO 3 hybrid has been determined to be considerably larger than that (10 m 2 g -1) of the self-restacked MoO 3. It is evident that adequate intercalation of TiO 2 nanoparticles into a MoO 3 lattice gives rise to a highly nanoporous structure. The photocatalytic activity of the present nanoporous hybrid is much superior to that of layered molybdenum oxide alone in terms of the degradation of organic pollutant.",

keywords = "A. Inorganic compounds, A. Nanostructures, B. Chemical synthesis, C. Electron microscopy, C. X-ray diffraction",

author = "Kang, {Joo Hee} and Yeo, {Hyun Jung} and Jeong, {Jong Hwa} and Paek, {Seung Min} and Choy, {Jin Ho}",

year = "2012",

month = dec,

doi = "10.1016/j.jpcs.2012.01.021",

language = "English",

volume = "73",

pages = "1469--1472",

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

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T1 - Titania-pillared molybdenum oxide as a new nanoporous photocatalyst

AU - Kang, Joo Hee

AU - Yeo, Hyun Jung

AU - Jeong, Jong Hwa

AU - Paek, Seung Min

AU - Choy, Jin Ho

PY - 2012/12

Y1 - 2012/12

N2 - New nanoporous TiO 2-MoO 3 hybrids have been successfully synthesized via an exfoliation and reassembling method. According to the X-ray diffraction (XRD) pattern and transmission electron microscopy (TEM) analysis, quantum-sized titania nanoparticles with an average size of 1 nm were intercalated into the interlayer spaces of layered MoO 3. Such a regularity of pillars results in a remarkable enhancement of the specific surface area, as confirmed by nitrogen adsorption-desorption measurements. The Langmuir specific surface area (210 m 2 g -1) of TiO 2-pillared MoO 3 hybrid has been determined to be considerably larger than that (10 m 2 g -1) of the self-restacked MoO 3. It is evident that adequate intercalation of TiO 2 nanoparticles into a MoO 3 lattice gives rise to a highly nanoporous structure. The photocatalytic activity of the present nanoporous hybrid is much superior to that of layered molybdenum oxide alone in terms of the degradation of organic pollutant.

AB - New nanoporous TiO 2-MoO 3 hybrids have been successfully synthesized via an exfoliation and reassembling method. According to the X-ray diffraction (XRD) pattern and transmission electron microscopy (TEM) analysis, quantum-sized titania nanoparticles with an average size of 1 nm were intercalated into the interlayer spaces of layered MoO 3. Such a regularity of pillars results in a remarkable enhancement of the specific surface area, as confirmed by nitrogen adsorption-desorption measurements. The Langmuir specific surface area (210 m 2 g -1) of TiO 2-pillared MoO 3 hybrid has been determined to be considerably larger than that (10 m 2 g -1) of the self-restacked MoO 3. It is evident that adequate intercalation of TiO 2 nanoparticles into a MoO 3 lattice gives rise to a highly nanoporous structure. The photocatalytic activity of the present nanoporous hybrid is much superior to that of layered molybdenum oxide alone in terms of the degradation of organic pollutant.

KW - A. Inorganic compounds

KW - A. Nanostructures

KW - B. Chemical synthesis

KW - C. Electron microscopy

KW - C. X-ray diffraction

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VL - 73

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EP - 1472

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 12

ER -

Titania-pillared molybdenum oxide as a new nanoporous photocatalyst

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