Phosphorescence Detection of the Singlet Molecular Oxygen Generated by Visible-light Irradiation on Gold-nanoparticle-deposited TiO2 Photocatalysts

2012 ◽  
Vol 41 (12) ◽  
pp. 1591-1593 ◽  
Author(s):  
Hironobu Saito ◽  
Yoshio Nosaka
Keyword(s):  
Visible Light ◽  
Gold Nanoparticle ◽  
Molecular Oxygen ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Singlet Molecular Oxygen ◽  
Tio2 Photocatalysts

scholarly journals Enhanced visible light response of a WO3 photoelectrode with an immobilized fibrous gold nanoparticle assembly using an amyloid-β peptide

RSC Advances ◽  
2017 ◽  
Vol 7 (2) ◽  
pp. 1089-1092 ◽  
Author(s):  
Akira Onoda ◽  
Hirofumi Harada ◽  
Taro Uematsu ◽  
Susumu Kuwabata ◽  
Ryo Yamanaka ◽  
...  
Keyword(s):  
Visible Light ◽  
Gold Nanoparticle ◽  
Visible Light Irradiation ◽  
Amyloid Β ◽  
Light Response ◽  
Light Irradiation ◽  
Amyloid Β Peptide ◽  
Aβ Peptide ◽  
Photocurrent Generation ◽  
Visible Light Response

A WO3 photoelectrode immobilizing a fibrous gold nanoparticle (AuNP) assembly using an amyloid-β (Aβ) peptide exhibits enhanced photocurrent generation upon visible light irradiation.

Enhanced photoactivity of CuPp-TiO2 photocatalysts under visible light irradiation

2010 ◽  
Vol 257 (3) ◽  
pp. 795-801 ◽  
Author(s):  
Xiang-fei Lü ◽  
Jun Li ◽  
Chen Wang ◽  
Ming-yue Duan ◽  
Yun Luo ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Tio2 Photocatalysts

Visible light-promoted copper catalyzed regioselective acetamidation of terminal alkynes by arylamines

2020 ◽  
Vol 22 (4) ◽  
pp. 1164-1170 ◽  
Author(s):  
V. Kishore Kumar Pampana ◽  
Arunachalam Sagadevan ◽  
Ayyakkannu Ragupathi ◽  
Kuo Chu Hwang
Keyword(s):  
Visible Light ◽  
Molecular Oxygen ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Light Irradiation ◽  
Terminal Alkynes

Herein, we describe a copper photoredox catalyzed synthesis of acetamide via regioselective C–N coupling of arylamines with terminal alkynes using molecular oxygen (O2) as an oxidant at room temperature under visible light irradiation (47 examples).

Photopolymerization of OCDMA Dimetacrylate Initiated by 3,5-Di-tert-Butyl-o- Quinone and its Bis-O-Benzoquinone

2020 ◽  
Vol 869 ◽  
pp. 129-134
Author(s):  
Elnara Zhiganshina ◽  
Maxim Arsenyev ◽  
Alexey Konev ◽  
Yuri Chechet ◽  
Sergey Chesnokov
Keyword(s):  
Visible Light ◽  
Kinetic Parameters ◽  
Molecular Oxygen ◽  
Visible Light Irradiation ◽  
High Stability ◽  
Spectral Characteristics ◽  
Argon Atmosphere ◽  
Light Irradiation ◽  
Long Time

The reactivity of 3,5-di-tert-butyl-o-benzoquinone and its bis-o-benzoquinone derivative in photoreduction reaction and polymerization of dimethacrylate (OCDMA) (in bulk and in the presence of 1-butanol) with using of them as photoinitiators under visible light irradiation under argon atmosphere or air were investigated. It was found that the kinetic parameters of the bis-o-quinone photoreactions have low sensitive to the presence of molecular oxygen. The high stability of the spectral characteristics of resulting polymers based on bis-o-quinones compositions for the long time was established.

Effect of Water/Acetonitrile Ratio on Dye-Sensitized Photocatalytic H2 Evolution under Visible Light Irradiation

2004 ◽  
Vol 127 (3) ◽  
pp. 413-416 ◽  
Author(s):  
Ryu Abe ◽  
Kazuhiro Sayama ◽  
Hideki Sugihara
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Energy Gap ◽  
Light Irradiation ◽  
Acetonitrile Solution ◽  
H2 Evolution ◽  
Tio2 Photocatalysts ◽  
Dye Sensitized ◽  
Highest Occupied Molecular Orbital ◽  
Splitting System

H 2 production in a water-acetonitrile solution containing iodide as an electron donor was investigated over dye-sensitized Pt∕TiO2 photocatalysts under visible light irradiation, as a potential water-splitting system based on an iodide redox mediator. The rates of H2 evolution decreased with increasing proportion of water in the solutions, because of a decrease in the energy gap between the redox potential of I3−∕I− and the highest occupied molecular orbital levels of the dyes, which decreases the efficiency of electron transfer from I− to dye.

Metal chlorides-catalyzed selective oxidation of cyclohexane by molecular oxygen under visible light irradiation

2012 ◽  
Vol 286 ◽  
pp. 6-12 ◽  
Author(s):  
Wenfeng Wu ◽  
Xiangling He ◽  
Zaihui Fu ◽  
Yachun Liu ◽  
Yanlong Wang ◽  
...  
Keyword(s):  
Visible Light ◽  
Molecular Oxygen ◽  
Selective Oxidation ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Metal Chlorides

Dye-Sensitized Photocatalyst System for Water Splitting Into H2 and O2 Under Visible Light Irradiation

Solar Energy ◽  
2004 ◽  
Author(s):  
Ryu Abe ◽  
Kazuhiro Sayama ◽  
Hironori Arakawa
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Visible Light Irradiation ◽  
Energy Gap ◽  
H2 Production ◽  
Light Irradiation ◽  
Mixed Solution ◽  
Tio2 Photocatalysts ◽  
Dye Sensitized ◽  
Splitting System

H2 production from a water-acetonitrile mixed solution containing iodide electron donor was investigated over dye-sensitized Pt/TiO2 photocatalysts under visible light irradiation, as a part of water splitting system using iodide redox mediator. The rates of H2 evolution were decreased with the increase of the water ratio in the mixed solutions, because of the decrease in energy gap between the redox potential of I3−/I− and the HOMO levels of the dyes, which lowing the efficiency of electron transfer from I− to dye.

Metal-Free Epoxidation of Alkenes with Molecular Oxygen and Benzaldehyde under Visible Light Irradiation

Synlett ◽  
2009 ◽  
Vol 2009 (18) ◽  
pp. 3024-3026 ◽  
Author(s):  
Akichika Itoh ◽  
Norihiro Tada ◽  
Hiroaki Okubo ◽  
Tsuyoshi Miura
Keyword(s):  
Visible Light ◽  
Molecular Oxygen ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Metal Free ◽  
Epoxidation Of Alkenes
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