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

scholarly journals A hierarchical Ca/TiO2/NH2-MIL-125 nanocomposite photocatalyst for solar visible light induced photodegradation of organic dye pollutants in water

RSC Advances ◽  
2020 ◽  
Vol 10 (50) ◽  
pp. 29808-29820 ◽  
Author(s):  
Najmeh Ahmadpour ◽  
Mohammad Hossein Sayadi ◽  
Shahin Homaeigohar
Keyword(s):  
Methyl Orange ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Rhodamine B ◽  
Organic Dye ◽  
Light Irradiation ◽  
Dye Pollutants ◽  
First Time

In this study, for the first time, the Ca/TiO2/NH2-MIL-125 nanocomposite photocatalyst was synthesized for the purpose of photodegradation of Methyl Orange (MO) and Rhodamine B (RhB) dyes under visible light irradiation.

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.

Visible-Light Photosensitized Aryl and Alkyl Decarboxylative Carbon-Heteroatom and Carbon-Carbon Bond Formations

2019 ◽  
Author(s):  
Tuhin Patra ◽  
Satobhisha Mukherjee ◽  
Jiajia Ma ◽  
Felix Strieth-Kalthoff ◽  
Frank Glorius
Keyword(s):  
Energy Transfer ◽  
Visible Light ◽  
Alkyl Radical ◽  
General Strategy ◽  
Alkyl Radicals ◽  
Bond Forming ◽  
Radical Trapping ◽  
Carbon Carbon Bond ◽  
Radical Generation ◽  
Trapping Agent

<sub>A general strategy to access both aryl and alkyl radicals by photosensitized decarboxylation of the corresponding carboxylic acids esters has been developed. An energy transfer mediated homolysis of unsymmetrical sigma-bonds for a concerted fragmentation/decarboxylation process is involved. As a result, an independent aryl/alkyl radical generation step enables a series of key C-X and C-C bond forming reactions by simply changing the radical trapping agent.</sub>

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,...

New Avenues in Radical Trifluoromethylselenylation with ­Trifluoromethyl Tolueneselenosulfonate

Synlett ◽  
2018 ◽  
Vol 30 (07) ◽  
pp. 777-782 ◽  
Author(s):  
Clément Ghiazza ◽  
Cyrille Monnereau ◽  
Lhoussain Khrouz ◽  
Maurice Médebielle ◽  
Thierry Billard ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Transition Metal ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Diazonium Salts ◽  
Metal Free ◽  
Luminescence Measurement ◽  
Stable Reagent ◽  
Shelf Stable

We demonstrated that the shelf-stable reagent trifluoromethyl tolueneselenosulfonate can be involved in radical trifluoromethylselenylation. Upon visible-light irradiation, the homolysis of the reagent could take place at room temperature. This finding is explored for unprecedented C(sp2)–SeCF3 and C(sp3)–SeCF3 processes under transition-metal-free conditions. Mechanistic investigations, including cyclic voltammetry, luminescence measurement, and EPR studies, allowed the proposal of plausible mechanisms.1 Introduction.2 Reactivity of Reagent I with Diazonium Salts3 Reactivity of Reagent I with Alkenes and Alkynes4 Conclusion

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