Thermal and plasma synthesis of metal oxide nanoparticles from MOFs with SERS characterization

Bing Han Li; Tsung Han Yu; Cheng Yu Weng; Chung Chun Yang; Chia Her Lin; Szetsen Lee

doi:10.1016/j.vibspec.2016.03.015

Thermal and plasma synthesis of metal oxide nanoparticles from MOFs with SERS characterization

Bing Han Li, Tsung Han Yu, Cheng Yu Weng, Chung Chun Yang, Chia Her Lin^*, Szetsen Lee

^*Corresponding author for this work

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

8 Citations (Scopus)

Abstract

Aluminum oxide (Al₂O₃) and chromium oxide (Cr₂O₃) nanoparticles were synthesized by thermolysis of metal-organic frameworks (MOFs). Further O₂ plasma treatment is required to obtain high crystalline quality metal oxides. The composition and morphology of metal oxide nanoparticles were confirmed by powder X-ray diffraction and scanning electron microscopy characterization, respectively. The quality of synthesized metal oxides was also examined by observing the surface-enhanced Raman scattering (SERS) spectra of methyl orange adsorbed on Al₂O₃ and Cr₂O₃. The observed SERS effect can be ascribed to charge-transfer (CT) resonance effect between methyl orange and metal oxide surfaces. UV-vis absorption spectra and DFT calculations of metal oxide- methyl orange complexes have confirmed that the observed SRS effect is due to CT resonance between the metal oxide nanoparticles and the adsorbed methyl orange molecules.

Original language	English
Pages (from-to)	146-152
Number of pages	7
Journal	Vibrational Spectroscopy
Volume	84
DOIs	https://doi.org/10.1016/j.vibspec.2016.03.015
Publication status	Published - 2016 May 1
Externally published	Yes

Keywords

Aluminum oxide
Chromium oxide
DFT
PXRD
SERS

ASJC Scopus subject areas

Spectroscopy

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10.1016/j.vibspec.2016.03.015

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@article{5863f3410e08411bb732f4053666843a,

title = "Thermal and plasma synthesis of metal oxide nanoparticles from MOFs with SERS characterization",

abstract = "Aluminum oxide (Al2O3) and chromium oxide (Cr2O3) nanoparticles were synthesized by thermolysis of metal-organic frameworks (MOFs). Further O2 plasma treatment is required to obtain high crystalline quality metal oxides. The composition and morphology of metal oxide nanoparticles were confirmed by powder X-ray diffraction and scanning electron microscopy characterization, respectively. The quality of synthesized metal oxides was also examined by observing the surface-enhanced Raman scattering (SERS) spectra of methyl orange adsorbed on Al2O3 and Cr2O3. The observed SERS effect can be ascribed to charge-transfer (CT) resonance effect between methyl orange and metal oxide surfaces. UV-vis absorption spectra and DFT calculations of metal oxide- methyl orange complexes have confirmed that the observed SRS effect is due to CT resonance between the metal oxide nanoparticles and the adsorbed methyl orange molecules.",

keywords = "Aluminum oxide, Chromium oxide, DFT, PXRD, SERS",

author = "Li, {Bing Han} and Yu, {Tsung Han} and Weng, {Cheng Yu} and Yang, {Chung Chun} and Lin, {Chia Her} and Szetsen Lee",

note = "Funding Information: This work was supported by the Ministry of Science and Technology of Taiwan (NSC 100-2738-M-033-001-MY3, NSC 100-2632-M-033-001-MY3, MOST 103-2632-M-033-001-MY3, and MOST 103-2113-M-033-003). Publisher Copyright: {\textcopyright} 2016 Elsevier B.V. All rights reserved.",

year = "2016",

month = may,

day = "1",

doi = "10.1016/j.vibspec.2016.03.015",

language = "English",

volume = "84",

pages = "146--152",

journal = "Vibrational Spectroscopy",

issn = "0924-2031",

publisher = "Elsevier",

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TY - JOUR

T1 - Thermal and plasma synthesis of metal oxide nanoparticles from MOFs with SERS characterization

AU - Li, Bing Han

AU - Yu, Tsung Han

AU - Weng, Cheng Yu

AU - Yang, Chung Chun

AU - Lin, Chia Her

AU - Lee, Szetsen

N1 - Funding Information: This work was supported by the Ministry of Science and Technology of Taiwan (NSC 100-2738-M-033-001-MY3, NSC 100-2632-M-033-001-MY3, MOST 103-2632-M-033-001-MY3, and MOST 103-2113-M-033-003). Publisher Copyright: © 2016 Elsevier B.V. All rights reserved.

PY - 2016/5/1

Y1 - 2016/5/1

N2 - Aluminum oxide (Al2O3) and chromium oxide (Cr2O3) nanoparticles were synthesized by thermolysis of metal-organic frameworks (MOFs). Further O2 plasma treatment is required to obtain high crystalline quality metal oxides. The composition and morphology of metal oxide nanoparticles were confirmed by powder X-ray diffraction and scanning electron microscopy characterization, respectively. The quality of synthesized metal oxides was also examined by observing the surface-enhanced Raman scattering (SERS) spectra of methyl orange adsorbed on Al2O3 and Cr2O3. The observed SERS effect can be ascribed to charge-transfer (CT) resonance effect between methyl orange and metal oxide surfaces. UV-vis absorption spectra and DFT calculations of metal oxide- methyl orange complexes have confirmed that the observed SRS effect is due to CT resonance between the metal oxide nanoparticles and the adsorbed methyl orange molecules.

AB - Aluminum oxide (Al2O3) and chromium oxide (Cr2O3) nanoparticles were synthesized by thermolysis of metal-organic frameworks (MOFs). Further O2 plasma treatment is required to obtain high crystalline quality metal oxides. The composition and morphology of metal oxide nanoparticles were confirmed by powder X-ray diffraction and scanning electron microscopy characterization, respectively. The quality of synthesized metal oxides was also examined by observing the surface-enhanced Raman scattering (SERS) spectra of methyl orange adsorbed on Al2O3 and Cr2O3. The observed SERS effect can be ascribed to charge-transfer (CT) resonance effect between methyl orange and metal oxide surfaces. UV-vis absorption spectra and DFT calculations of metal oxide- methyl orange complexes have confirmed that the observed SRS effect is due to CT resonance between the metal oxide nanoparticles and the adsorbed methyl orange molecules.

KW - Aluminum oxide

KW - Chromium oxide

KW - DFT

KW - PXRD

KW - SERS

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DO - 10.1016/j.vibspec.2016.03.015

M3 - Article

AN - SCOPUS:84962028298

SN - 0924-2031

VL - 84

SP - 146

EP - 152

JO - Vibrational Spectroscopy

JF - Vibrational Spectroscopy

ER -

Thermal and plasma synthesis of metal oxide nanoparticles from MOFs with SERS characterization

Abstract

Keywords

ASJC Scopus subject areas

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