Self-Assembled Gold Nanoparticle–Mixed Metal Oxide Nanocomposites for Self-Sensitized Dye Degradation under Visible Light Irradiation

Langmuir ◽  
2012 ◽  
Vol 28 (50) ◽  
pp. 17530-17536 ◽  
Author(s):  
Seungho Cho ◽  
Ji-Wook Jang ◽  
Sekyu Hwang ◽  
Jae Sung Lee ◽  
Sungjee Kim
Keyword(s):  
Metal Oxide ◽  
Visible Light ◽  
Gold Nanoparticle ◽  
Visible Light Irradiation ◽  
Dye Degradation ◽  
Light Irradiation ◽  
Mixed Metal Oxide ◽  
Mixed Metal ◽  
Self Assembled

Photocatalytic Degradation of Methylene Blue over Co-Ag3VO4 under Visible Light Irradiation

2011 ◽  
Vol 335-336 ◽  
pp. 1385-1390 ◽  
Author(s):  
Shuo Wiei Zhao ◽  
Hui Xu ◽  
Hua Ming Li ◽  
Yuan Guo Xu
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Absorption Edge ◽  
Diffuse Reflectance Spectroscopy ◽  
Dye Degradation ◽  
Light Irradiation ◽  
Experimental Conditions ◽  
X Ray

In order to improve the photocatalytic activity, Co was successfully loaded into Ag3VO4 by using impregnation process. The samples were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), energy-dispersive X-ray spectroscopy (EDS) and diffuse reflectance spectroscopy (DRS). The XRD and SEM–EDS analyses revealed that Co ion was dispersed on Ag3VO4. The DRS results indicated that the absorption edge of the Co–Ag3VO4 catalyst shifted to longer wavelength. The enhanced photocatalytic activity of Co–Ag3VO4 for Methylene Blue(MB) dye degradation under visible light irradiation was due to its wider absorption edge and higher separation rate of photo-generated electron and holes. In the experimental conditions, it is demonstrated that the MB was effectively degraded by more than 95% within 40 min when the Co–Ag3VO4 catalyst was calcined at 300°C with 1 wt.% Co content.

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.

scholarly journals Concurrent Photocatalytic Hydrogen Generation and Dye Degradation Using MIL-125-NH2 under Visible Light Irradiation

2018 ◽  
Vol 28 (52) ◽  
pp. 1806368 ◽  
Author(s):  
Stavroula Kampouri ◽  
Tu N. Nguyen ◽  
Mariana Spodaryk ◽  
Robert G. Palgrave ◽  
Andreas Züttel ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Hydrogen Generation ◽  
Dye Degradation ◽  
Light Irradiation ◽  
Photocatalytic Hydrogen Generation
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