Synthesis and photophysical behaviour of tantalum and titanium phthalocyanines in the presence of gold nanoparticles: Photocatalysis towards the oxidation of cyclohexene

Vongani P. Chauke; Yasin Arslanoglu; Tebello Nyokong

doi:10.1016/j.jphotochem.2011.04.020

Synthesis and photophysical behaviour of tantalum and titanium phthalocyanines in the presence of gold nanoparticles: Photocatalysis towards the oxidation of cyclohexene

Vongani P. Chauke
, Yasin Arslanoglu
, Tebello Nyokong^*

^*Bu çalışma için yazışmadan sorumlu yazar

Temel Bilimler Bölümü

Rhodes University

Araştırma çıktısı: Dergi yayını › Makale › Hakem

14 Atıf (Scopus)

Özet

We report on the synthesis of 2,(3)- (peripheral) and 1,(4)- (non-peripheral) (2-mercaptopyridine)phthalocyanine complexes of titanium (IV) oxide (5 and 6 respectively), and tantalum (III) hydroxide (7, peripheral only), their photochemical and photophysical parameters and the photocatalytic oxidation of cyclohexene in the presence of gold nanoparticles (AuNPs). The singlet oxygen quantum yield values increased in the presence of AuNPs, for complexes 5 and 6. The percentage conversion values for cyclohexene using 5, 6 and 7 were 27%, 20% and 14%, respectively. These values increased considerably in the presence of AuNPs, except complex for 7. The products obtained include cyclohexene oxide, 2-cyclohexen-1-ol, 2-cyclohexene-1-one and 1,2-cyclohexanediol. Low values of singlet oxygen quantum yields favour the formation of 1,2-cyclohexanediol.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	38-46
Sayfa sayısı	9
Dergi	Journal of Photochemistry and Photobiology A: Chemistry
Hacim	221
Basın numarası	1
DOI'lar	https://doi.org/10.1016/j.jphotochem.2011.04.020
Yayın durumu	Yayınlandı - 10 Haz 2011

Finansman

This work was supported by the Department of Science and Technology (DST) and National Research Foundation (NRF) of South Africa through DST/NRF South African Research Chairs Initiative for Professor of Medicinal Chemistry and Nanotechnology and Rhodes University.

Finansörler
National Research Foundation
Rhodes University
Department of Science and Technology, Ministry of Science and Technology, India

Belgeye Erişim

10.1016/j.jphotochem.2011.04.020

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

@article{243c2b4fc7004b0797a84b44aa3a5c58,

title = "Synthesis and photophysical behaviour of tantalum and titanium phthalocyanines in the presence of gold nanoparticles: Photocatalysis towards the oxidation of cyclohexene",

abstract = "We report on the synthesis of 2,(3)- (peripheral) and 1,(4)- (non-peripheral) (2-mercaptopyridine)phthalocyanine complexes of titanium (IV) oxide (5 and 6 respectively), and tantalum (III) hydroxide (7, peripheral only), their photochemical and photophysical parameters and the photocatalytic oxidation of cyclohexene in the presence of gold nanoparticles (AuNPs). The singlet oxygen quantum yield values increased in the presence of AuNPs, for complexes 5 and 6. The percentage conversion values for cyclohexene using 5, 6 and 7 were 27\%, 20\% and 14\%, respectively. These values increased considerably in the presence of AuNPs, except complex for 7. The products obtained include cyclohexene oxide, 2-cyclohexen-1-ol, 2-cyclohexene-1-one and 1,2-cyclohexanediol. Low values of singlet oxygen quantum yields favour the formation of 1,2-cyclohexanediol.",

keywords = "Cyclohexene, Gold nanoparticles, Photocatalysis, Photodegradation, Phthalocyanines, Singlet oxygen quantum yield, Tantalum, Titanium, Triplet lifetimes, Triplet quantum yields",

author = "Chauke, \{Vongani P.\} and Yasin Arslanoglu and Tebello Nyokong",

year = "2011",

month = jun,

day = "10",

doi = "10.1016/j.jphotochem.2011.04.020",

language = "English",

volume = "221",

pages = "38--46",

journal = "Journal of Photochemistry and Photobiology A: Chemistry",

issn = "1010-6030",

publisher = "Elsevier B.V.",

number = "1",

}

Synthesis and photophysical behaviour of tantalum and titanium phthalocyanines in the presence of gold nanoparticles: Photocatalysis towards the oxidation of cyclohexene. / Chauke, Vongani P.; Arslanoglu, Yasin; Nyokong, Tebello.
In: Journal of Photochemistry and Photobiology A: Chemistry, Hac. 221, No. 1, 10.06.2011, p. 38-46.

Araştırma çıktısı: Dergi yayını › Makale › Hakem

TY - JOUR

T1 - Synthesis and photophysical behaviour of tantalum and titanium phthalocyanines in the presence of gold nanoparticles

T2 - Photocatalysis towards the oxidation of cyclohexene

AU - Chauke, Vongani P.

AU - Arslanoglu, Yasin

AU - Nyokong, Tebello

PY - 2011/6/10

Y1 - 2011/6/10

N2 - We report on the synthesis of 2,(3)- (peripheral) and 1,(4)- (non-peripheral) (2-mercaptopyridine)phthalocyanine complexes of titanium (IV) oxide (5 and 6 respectively), and tantalum (III) hydroxide (7, peripheral only), their photochemical and photophysical parameters and the photocatalytic oxidation of cyclohexene in the presence of gold nanoparticles (AuNPs). The singlet oxygen quantum yield values increased in the presence of AuNPs, for complexes 5 and 6. The percentage conversion values for cyclohexene using 5, 6 and 7 were 27%, 20% and 14%, respectively. These values increased considerably in the presence of AuNPs, except complex for 7. The products obtained include cyclohexene oxide, 2-cyclohexen-1-ol, 2-cyclohexene-1-one and 1,2-cyclohexanediol. Low values of singlet oxygen quantum yields favour the formation of 1,2-cyclohexanediol.

AB - We report on the synthesis of 2,(3)- (peripheral) and 1,(4)- (non-peripheral) (2-mercaptopyridine)phthalocyanine complexes of titanium (IV) oxide (5 and 6 respectively), and tantalum (III) hydroxide (7, peripheral only), their photochemical and photophysical parameters and the photocatalytic oxidation of cyclohexene in the presence of gold nanoparticles (AuNPs). The singlet oxygen quantum yield values increased in the presence of AuNPs, for complexes 5 and 6. The percentage conversion values for cyclohexene using 5, 6 and 7 were 27%, 20% and 14%, respectively. These values increased considerably in the presence of AuNPs, except complex for 7. The products obtained include cyclohexene oxide, 2-cyclohexen-1-ol, 2-cyclohexene-1-one and 1,2-cyclohexanediol. Low values of singlet oxygen quantum yields favour the formation of 1,2-cyclohexanediol.

KW - Cyclohexene

KW - Gold nanoparticles

KW - Photocatalysis

KW - Photodegradation

KW - Phthalocyanines

KW - Singlet oxygen quantum yield

KW - Tantalum

KW - Titanium

KW - Triplet lifetimes

KW - Triplet quantum yields

UR - https://www.scopus.com/pages/publications/79958147280

U2 - 10.1016/j.jphotochem.2011.04.020

DO - 10.1016/j.jphotochem.2011.04.020

M3 - Article

AN - SCOPUS:79958147280

SN - 1010-6030

VL - 221

SP - 38

EP - 46

JO - Journal of Photochemistry and Photobiology A: Chemistry

JF - Journal of Photochemistry and Photobiology A: Chemistry

IS - 1

ER -

Synthesis and photophysical behaviour of tantalum and titanium phthalocyanines in the presence of gold nanoparticles: Photocatalysis towards the oxidation of cyclohexene

Özet

Finansman

Belgeye Erişim

Diğer Dosyalar ve Linkler

Parmak izi

Alıntı Yap