Novel photocatalytic applications of sub-nanometer gold particles for environmental liquid and gas phase reactions

Shen Zhao; Girish Ramakrishnan; Dong Su; Robert Rieger; Antonius Koller; Alexander Orlov

doi:10.1016/j.apcatb.2011.03.026

Novel photocatalytic applications of sub-nanometer gold particles for environmental liquid and gas phase reactions

Shen Zhao
, Girish Ramakrishnan
, Dong Su
, Robert Rieger
, Antonius Koller
, Alexander Orlov

Materials Science and Engineering

Stony Brook University

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

21 Scopus citations

Abstract

Ultra small sub-1nm gold nanoparticles were synthesized, characterized and deposited on TiO₂ support. They exhibited a remarkable photocatalytic activity for both liquid and gas phase oxidation reactions, which have a significant potential for environmental applications. The NO₂ conversion on such catalysts was 6 times higher as compared to that of unmodified catalysts. This is the first ever application of such small clusters for environmental photocatalysis. The presence of sub-1nm clusters was confirmed by TEM, MALDI-TOF MS and UV-vis spectroscopy. This work also included the novel use of modified DRIFT spectroscopy for photocatalytic testing as well improvement of known Au clusters synthesis procedures.

Original language	English
Pages (from-to)	239-244
Number of pages	6
Journal	Applied Catalysis B: Environmental
Volume	104
Issue number	3-4
DOIs	https://doi.org/10.1016/j.apcatb.2011.03.026
State	Published - May 18 2011

Keywords

DRIFTS
Gold nanoparticles
Phenol degradation
Photocatalysis
TiO2

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10.1016/j.apcatb.2011.03.026

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title = "Novel photocatalytic applications of sub-nanometer gold particles for environmental liquid and gas phase reactions",

abstract = "Ultra small sub-1nm gold nanoparticles were synthesized, characterized and deposited on TiO2 support. They exhibited a remarkable photocatalytic activity for both liquid and gas phase oxidation reactions, which have a significant potential for environmental applications. The NO2 conversion on such catalysts was 6 times higher as compared to that of unmodified catalysts. This is the first ever application of such small clusters for environmental photocatalysis. The presence of sub-1nm clusters was confirmed by TEM, MALDI-TOF MS and UV-vis spectroscopy. This work also included the novel use of modified DRIFT spectroscopy for photocatalytic testing as well improvement of known Au clusters synthesis procedures.",

keywords = "DRIFTS, Gold nanoparticles, Phenol degradation, Photocatalysis, TiO2",

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AU - Zhao, Shen

AU - Ramakrishnan, Girish

AU - Su, Dong

AU - Rieger, Robert

AU - Koller, Antonius

AU - Orlov, Alexander

PY - 2011/5/18

Y1 - 2011/5/18

N2 - Ultra small sub-1nm gold nanoparticles were synthesized, characterized and deposited on TiO2 support. They exhibited a remarkable photocatalytic activity for both liquid and gas phase oxidation reactions, which have a significant potential for environmental applications. The NO2 conversion on such catalysts was 6 times higher as compared to that of unmodified catalysts. This is the first ever application of such small clusters for environmental photocatalysis. The presence of sub-1nm clusters was confirmed by TEM, MALDI-TOF MS and UV-vis spectroscopy. This work also included the novel use of modified DRIFT spectroscopy for photocatalytic testing as well improvement of known Au clusters synthesis procedures.

AB - Ultra small sub-1nm gold nanoparticles were synthesized, characterized and deposited on TiO2 support. They exhibited a remarkable photocatalytic activity for both liquid and gas phase oxidation reactions, which have a significant potential for environmental applications. The NO2 conversion on such catalysts was 6 times higher as compared to that of unmodified catalysts. This is the first ever application of such small clusters for environmental photocatalysis. The presence of sub-1nm clusters was confirmed by TEM, MALDI-TOF MS and UV-vis spectroscopy. This work also included the novel use of modified DRIFT spectroscopy for photocatalytic testing as well improvement of known Au clusters synthesis procedures.

KW - DRIFTS

KW - Gold nanoparticles

KW - Phenol degradation

KW - Photocatalysis

KW - TiO2

UR - https://www.scopus.com/pages/publications/79955473035

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DO - 10.1016/j.apcatb.2011.03.026

M3 - Article

SN - 0926-3373

VL - 104

SP - 239

EP - 244

JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

IS - 3-4

ER -

Novel photocatalytic applications of sub-nanometer gold particles for environmental liquid and gas phase reactions

Abstract

Keywords

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