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.

Visible Light Response of ZrO2 by Nitriding and its Photocatalytic Activity

2007 ◽  
Vol 544-545 ◽  
pp. 163-166
Author(s):  
Takahiro Mishima ◽  
Motohide Matsuda ◽  
Michihiro Miyake
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Uv Irradiation ◽  
Visible Light Irradiation ◽  
Water Oxidation ◽  
Light Response ◽  
Light Irradiation ◽  
Visible Light Response ◽  
H2 Formation

A novel Zr2ON2 catalyst was successfully prepared by nitriding ZrO2, which has a potential enough for H2 formation by the reduction of water under UV irradiation. It was found that the Zr2ON2 had a stable photocatalytic activity for water oxidation and reduction in the presence of sacrificial reagents (methanol or Ag+) under visible light irradiation (λ < 500 nm).

scholarly journals Photocurrent generation from visible light irradiation of covalent polyoxometalate–porphyrin copolymers

2021 ◽  
Vol 368 ◽  
pp. 137635
Author(s):  
Zhaohui Huo ◽  
Yiming Liang ◽  
Shu Yang ◽  
Dejin Zang ◽  
Rana Farha ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Photocurrent Generation

scholarly journals Adsorption and Photocatalytic Kinetics of Visible-Light Response N-Doped TiO2Nanocatalyst for Indoor Acetaldehyde Removal under Dark and Light Conditions

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Yu-Hao Lin ◽  
Chih-Huang Weng ◽  
Jing-Hua Tzeng ◽  
Yao-Tung Lin
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Response ◽  
Reaction Scheme ◽  
Light Irradiation ◽  
Light Conditions ◽  
Volatile Organic ◽  
Langmuir Isotherm Model ◽  
Pseudo Second Order ◽  
Kinetics Of

Understanding the removal nature of the indoor volatile organic compounds under realistic environment conditions would give clear guidance for the development of air purification devices. The study investigated the removal of indoor acetaldehyde using visible-light-responsive N-doped TiO2(N-TiO2) photocatalyst under visible-light irradiation (light) and in the absence of light (dark). The adsorption kinetics of acetaldehyde onto N-TiO2followed a pseudo-second-order model. The magnitude of acetaldehyde adsorption is proportional to temperature, and the results were fitted to the Langmuir isotherm model. Moreover, the effect of initial acetaldehyde concentration and visible-light intensity on the photooxidation of acetaldehyde was well described by the Langmuir-Hinshelwood model. Results show that the mesoporous N-TiO2catalyst had a high ability to absorb acetaldehyde in the dark condition, and then acetaldehyde was subsequently photooxidized under visible-light irradiation. The adsorption capacity was found to increase with decreasing temperature. The negative value ofΔG° and the positive value ofΔS° indicate that the adsorption of acetaldehyde onto N-TiO2was a spontaneous process. Finally, a reaction scheme for removal process of indoor acetaldehyde by N-TiO2was proposed.

Metallic nanoparticle-on-mirror: Multiple-band light harvesting and efficient photocurrent generation under visible light irradiation

Nano Energy ◽  
2021 ◽  
Vol 90 ◽  
pp. 106609
Author(s):  
Alexander B. Tesler ◽  
Takumi Sannomiya ◽  
Seyedsina Hejazi ◽  
Reza Mohammadi ◽  
Nicolas Vogel ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Harvesting ◽  
Light Irradiation ◽  
Metallic Nanoparticle ◽  
Photocurrent Generation ◽  
Multiple Band

Preparation and characterization of polypyrrole/TiO2 nanocomposite and its photocatalytic activity under visible light irradiation

2009 ◽  
Vol 24 (8) ◽  
pp. 2547-2554 ◽  
Author(s):  
Shengying Li ◽  
Mingkai Chen ◽  
Lijun He ◽  
Fei Xu ◽  
Guohu Zhao
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Response ◽  
Light Irradiation ◽  
Force Microscopy ◽  
Atomic Force ◽  
Transmission Electron ◽  
Degussa P25

A simple and convenient method for preparing visible light response photocatalyst polypyrrole/TiO2 (PPy/TiO2) nanocomposite was developed. The products were characterized by x-ray diffraction, transmission electron microscopy, atomic force microscopy, ultraviolet-visible, and Fourier transform infrared techniques. The results indicated that the nanohybrid was composed of anatase TiO2 and PPy and exhibited an enhanced visible light-capturing ability. Average diameters of TiO2 and PPy/TiO2 were 18 and 35 nm, respectively. The photocatalytic activity of the nanocomposite was evaluated by the degradation of methyl orange under visible light irradiation. In the presence of PPy/TiO2 nanocomposite, the degradation efficiency of methyl orange of 95.54% could be obtained under visible light irradiation within 120 min. The apparent rate constant was 2.19 × 10−2, which was better than that Degussa P25 nano-TiO2. The sensitization mechanism of PPy/TiO2 photocatalyst was discussed briefly.

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