Polyimides as metal-free catalysts for organic dye degradation in the presence peroxymonosulfate under visible light irradiation

RSC Advances ◽  
2015 ◽  
Vol 5 (119) ◽  
pp. 98231-98240 ◽  
Author(s):  
Yufang Tao ◽  
Mingyu Wei ◽  
Dongsheng Xia ◽  
Aihua Xu ◽  
Xiaoxia Li
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Organic Dyes ◽  
Dye Degradation ◽  
Organic Dye ◽  
Light Irradiation ◽  
Metal Free ◽  
Organic Dye Degradation

Polyimide was demonstrated as a stable metal-free photocatalyst to activate peroxymonosulfate with visible light for the degradation of organic dyes.

Metal-free activation of peroxymonosulfate by g-C3N4 under visible light irradiation for the degradation of organic dyes

RSC Advances ◽  
2015 ◽  
Vol 5 (55) ◽  
pp. 44128-44136 ◽  
Author(s):  
Yufang Tao ◽  
Qian Ni ◽  
Mingyu Wei ◽  
Dongsheng Xia ◽  
Xiaoxia Li ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Organic Dyes ◽  
Light Irradiation ◽  
Metal Free

g-C3N4 was demonstrated as a stable metal-free photocatalyst to activate peroxymonosulfate under visible light irradiation for the degradation of organic dyes.

Linking Melem with Conjugated Schiff-Base Bond to Boost Photocatalytic Efficiency of Carbon Nitride for Overall Water Splitting

Nanoscale ◽  
2021 ◽  
Author(s):  
Hu Liu ◽  
Mengqi Shen ◽  
Peng Zhou ◽  
Zhi Guo ◽  
Xinyang Liu ◽  
...  
Keyword(s):  
Schiff Base ◽  
Visible Light ◽  
Water Splitting ◽  
Visible Light Irradiation ◽  
Carbon Nitride ◽  
Light Irradiation ◽  
Graphitic Carbon Nitride ◽  
Photocatalytic Efficiency ◽  
Metal Free ◽  
Overall Water Splitting

Developing an efficient single component photocatalyst for overall water splitting under visible-light irradiation is extremely challenging. Herein, we report a metal-free graphitic carbon nitride (g-CxN4)-based nanosheet photocatalyst (x = 3.2,...

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.

Aqueous-Medium Carbon–Carbon Bond-Forming Radical Reactions Catalyzed by Excited Rhodamine B as a Metal-Free Organic Dye under Visible Light Irradiation

2016 ◽  
Vol 81 (16) ◽  
pp. 7217-7229 ◽  
Author(s):  
Eito Yoshioka ◽  
Shigeru Kohtani ◽  
Takahisa Jichu ◽  
Takuya Fukazawa ◽  
Toyokazu Nagai ◽  
...  
Keyword(s):  
Visible Light ◽  
Aqueous Medium ◽  
Visible Light Irradiation ◽  
Rhodamine B ◽  
Organic Dye ◽  
Radical Reactions ◽  
Medium Carbon ◽  
Metal Free ◽  
Bond Forming ◽  
Carbon Carbon Bond
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