Synthesis, structural characterization, and photocatalytic performance of mesoporous W-MCM-48

Dan Zhao; Adrian Rodriguez; Nada M. Dimitrijevic; Tijana Rajh; Ranjit T. Koodali

doi:10.1021/jp105190v

Synthesis, structural characterization, and photocatalytic performance of mesoporous W-MCM-48

Dan Zhao, Adrian Rodriguez, Nada M. Dimitrijevic, Tijana Rajh, Ranjit T. Koodali

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

51 Scopus citations

Abstract

Tungsten-containing mesoporous MCM-48 was synthesized by a rapid and facile room-temperature procedure. The mesoporous structure and the local environment of tungsten species were studied by powder X-ray diffraction, transmission electron microscopy, nitrogen adsorption isotherms, UV-visible diffuse reflectance spectroscopy, and Raman spectrometry. The long-range ordered mesoporous structure of MCM-48 was well preserved after tungsten incorporation. Tungsten oxide species were highly dispersed in the MCM-48 matrix, and no bulk crystalline WO₃ was formed. The as-prepared W-MCM-48 materials show notable photocatalytic activity for hydrogen evolution from a methanol-water mixture under UV irradiation though bulk WO₃ is not active for the reaction. The photocatalytic mechanism was studied by electron spin resonance spectroscopy.

Original language	English (US)
Pages (from-to)	15728-15734
Number of pages	7
Journal	Journal of Physical Chemistry C
Volume	114
Issue number	37
DOIs	https://doi.org/10.1021/jp105190v
State	Published - Sep 23 2010
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Energy
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

Access to Document

10.1021/jp105190v

Cite this

@article{441d7f12379c4a5da8cb0de786054da3,

title = "Synthesis, structural characterization, and photocatalytic performance of mesoporous W-MCM-48",

abstract = "Tungsten-containing mesoporous MCM-48 was synthesized by a rapid and facile room-temperature procedure. The mesoporous structure and the local environment of tungsten species were studied by powder X-ray diffraction, transmission electron microscopy, nitrogen adsorption isotherms, UV-visible diffuse reflectance spectroscopy, and Raman spectrometry. The long-range ordered mesoporous structure of MCM-48 was well preserved after tungsten incorporation. Tungsten oxide species were highly dispersed in the MCM-48 matrix, and no bulk crystalline WO3 was formed. The as-prepared W-MCM-48 materials show notable photocatalytic activity for hydrogen evolution from a methanol-water mixture under UV irradiation though bulk WO3 is not active for the reaction. The photocatalytic mechanism was studied by electron spin resonance spectroscopy.",

author = "Dan Zhao and Adrian Rodriguez and Dimitrijevic, {Nada M.} and Tijana Rajh and Koodali, {Ranjit T.}",

year = "2010",

month = sep,

day = "23",

doi = "10.1021/jp105190v",

language = "English (US)",

volume = "114",

pages = "15728--15734",

journal = "Journal of Physical Chemistry C",

issn = "1932-7447",

publisher = "American Chemical Society",

number = "37",

}

TY - JOUR

T1 - Synthesis, structural characterization, and photocatalytic performance of mesoporous W-MCM-48

AU - Zhao, Dan

AU - Rodriguez, Adrian

AU - Dimitrijevic, Nada M.

AU - Rajh, Tijana

AU - Koodali, Ranjit T.

PY - 2010/9/23

Y1 - 2010/9/23

N2 - Tungsten-containing mesoporous MCM-48 was synthesized by a rapid and facile room-temperature procedure. The mesoporous structure and the local environment of tungsten species were studied by powder X-ray diffraction, transmission electron microscopy, nitrogen adsorption isotherms, UV-visible diffuse reflectance spectroscopy, and Raman spectrometry. The long-range ordered mesoporous structure of MCM-48 was well preserved after tungsten incorporation. Tungsten oxide species were highly dispersed in the MCM-48 matrix, and no bulk crystalline WO3 was formed. The as-prepared W-MCM-48 materials show notable photocatalytic activity for hydrogen evolution from a methanol-water mixture under UV irradiation though bulk WO3 is not active for the reaction. The photocatalytic mechanism was studied by electron spin resonance spectroscopy.

AB - Tungsten-containing mesoporous MCM-48 was synthesized by a rapid and facile room-temperature procedure. The mesoporous structure and the local environment of tungsten species were studied by powder X-ray diffraction, transmission electron microscopy, nitrogen adsorption isotherms, UV-visible diffuse reflectance spectroscopy, and Raman spectrometry. The long-range ordered mesoporous structure of MCM-48 was well preserved after tungsten incorporation. Tungsten oxide species were highly dispersed in the MCM-48 matrix, and no bulk crystalline WO3 was formed. The as-prepared W-MCM-48 materials show notable photocatalytic activity for hydrogen evolution from a methanol-water mixture under UV irradiation though bulk WO3 is not active for the reaction. The photocatalytic mechanism was studied by electron spin resonance spectroscopy.

UR - http://www.scopus.com/inward/record.url?scp=77956867546&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77956867546&partnerID=8YFLogxK

U2 - 10.1021/jp105190v

DO - 10.1021/jp105190v

M3 - Article

AN - SCOPUS:77956867546

SN - 1932-7447

VL - 114

SP - 15728

EP - 15734

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 37

ER -

Synthesis, structural characterization, and photocatalytic performance of mesoporous W-MCM-48

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this