Photosensitizer-Free Synthesis of β-Keto Sulfones via Visible-Light-Induced Oxysulfonylation of Alkenes with Sulfonic Acids

2021 ◽  
Author(s):  
Zhen Peng ◽  
Yun-Yun Hong ◽  
Sha Peng ◽  
Xiang-Qin Xu ◽  
Shan-Shan Tang ◽  
...  
Keyword(s):  
Visible Light ◽  
Ambient Temperature ◽  
Sulfonic Acids ◽  
Environment Friendly

An practical and environment-friendly methodology for the construction of β-ketosulfones through visible-light induced direct oxysulfonylation of alkenes with sulfonic acids at ambient temperature under open-air conditions was developed. Most importantly,...

scholarly journals Cotton fibres functionalized with plasmonic nanoparticles to promote the destruction of harmful molecules: an overview

2019 ◽  
Vol 8 (1) ◽  
pp. 671-680 ◽  
Author(s):  
Sami Boufi ◽  
Soraa Bouattour ◽  
Ana Maria Ferraria ◽  
Luís Filipe Vieira Ferreira ◽  
Ana Maria Botelho do Rego ◽  
...  
Keyword(s):  
Visible Light ◽  
Organic Dyes ◽  
Chemical Warfare Agents ◽  
Noble Metal Nanoparticles ◽  
Environment Friendly ◽  
Dimethyl Methylphosphonate ◽  
Cotton Fibres ◽  
Warfare Agents ◽  
Kinetics Of

AbstractSelf-decontaminating cotton fabrics were designed, produced and characterized aiming at the decomposition of harmful molecules namely chemical warfare agents (CWAs) by photocatalysis under day light or indoor illumination. This was achieved through the creation of a hybrid organic-inorganic nanostructured textile composed of a thin layer of TiO2 nanoparticles (NPs) generated in situ and chemically immobilised on the cellulose chains of cotton fibres. TiO2 NPs were converted into anatase by a hydrothermal procedure at low temperature around 100°C. The fabrics covered with TiO2 nanoparticles were examined in terms of their chemical composition, morphology, crystallinity, ageing, robustness and photocatalytic properties. In the whole preparation of the photocatalytic fabrics, only environment-friendly solvents (water or alcohol) were used. One of the important achievements in this work was providing fabrics with suitable photocatalytic activity under visible light. This was reached through plasmonic photocatalysis by generating noble metal nanoparticles (Au, Ag) and/ or their halides (AgBr, AgCl) neighbouring or topping the TiO2 NPs in the fabrics. The kinetics of degradation of the different systems were analysed and proved that the resulting fabrics could efficiently decompose, under visible light, organic dyes and dimethyl methylphosphonate (DMMP), a CWA simulant.Graphical abstract

Visible light induced fast synthesis of protein–polymer conjugates: controllable polymerization and protein activity

2014 ◽  
Vol 50 (49) ◽  
pp. 6506-6508 ◽  
Author(s):  
Xin Li ◽  
Lei Wang ◽  
Gaojian Chen ◽  
David M. Haddleton ◽  
Hong Chen
Keyword(s):  
Visible Light ◽  
Ambient Temperature ◽  
Raft Polymerization ◽  
Protein Activity ◽  
Polymer Conjugates ◽  
Protein Polymer ◽  
Novel Method ◽  
Fast Synthesis

Visible light induced fast and controllable RAFT polymerization from protein as a novel method for preparing protein–polymer conjugates at ambient temperature.

Visible-Light-Induced Living Radical Polymerization (LRP) Mediated by (salen)Co(II)/TPO at Ambient Temperature

2015 ◽  
Vol 48 (15) ◽  
pp. 5132-5139 ◽  
Author(s):  
Yaguang Zhao ◽  
Shuailin Zhang ◽  
Zhenqiang Wu ◽  
Xu Liu ◽  
Xianyuan Zhao ◽  
...  
Keyword(s):  
Visible Light ◽  
Ambient Temperature ◽  
Radical Polymerization ◽  
Living Radical Polymerization

Macroporous TiO2encapsulated Au@Pd bimetal nanoparticles for the photocatalytic oxidation of alcohols in water under visible-light

RSC Advances ◽  
2016 ◽  
Vol 6 (109) ◽  
pp. 107233-107238 ◽  
Author(s):  
Xiaohui Wang ◽  
Dahu Baiyila ◽  
Xiaotian Li
Keyword(s):  
Catalytic Activity ◽  
Visible Light ◽  
Ambient Temperature ◽  
Visible Light Irradiation ◽  
Photocatalytic Oxidation ◽  
Aerobic Oxidation ◽  
Light Irradiation ◽  
Oxidizing Agent ◽  
Oxidation Of Alcohols

A novel macroporous photocatalyst Au@Pd@TiO2has been reported and showed excellent catalytic activity and stability in the aerobic oxidation of alcohols in water at ambient temperature when using air as the oxidizing agent under visible light irradiation.

Free Radical Polymerization Initiated and Controlled by Visible Light Photocatalysis at Ambient Temperature

2011 ◽  
Vol 44 (19) ◽  
pp. 7594-7599 ◽  
Author(s):  
Guan Zhang ◽  
In Young Song ◽  
Kyo Han Ahn ◽  
Taiho Park ◽  
Wonyong Choi
Keyword(s):  
Free Radical ◽  
Visible Light ◽  
Ambient Temperature ◽  
Radical Polymerization ◽  
Free Radical Polymerization ◽  
Visible Light Photocatalysis
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