Facile synthesis of ultra-small monodisperse ceria nanocrystals at room temperature and their catalytic activity under visible light

2010 ◽  
Vol 20 (12) ◽  
pp. 2381 ◽  
Author(s):  
Yatendra S. Chaudhary ◽  
Snigdha Panigrahi ◽  
Simantini Nayak ◽  
Biswarup Satpati ◽  
Sarama Bhattacharjee ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Visible Light ◽  
Room Temperature ◽  
Facile Synthesis

Facile synthesis of poly(N-vinyl pyrrolidone) block copolymers with “more-activated” monomers by using photoinduced successive RAFT polymerization

2020 ◽  
Vol 11 (12) ◽  
pp. 2080-2088
Author(s):  
Yingjie Wang ◽  
Mengqi Wang ◽  
Liangjiu Bai ◽  
Lifen Zhang ◽  
Zhenping Cheng ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Visible Light ◽  
Room Temperature ◽  
Raft Polymerization ◽  
Vinyl Pyrrolidone ◽  
Facile Synthesis ◽  
Polymerization Method

Well-defined PNVP block copolymers with more-activated monomers were synthesized by a single RAFT polymerization method under irradiation with visible light at room temperature.

scholarly journals A facile synthesis of phenazine and quinoxaline (new 1,4-benzo diazine) derivatives using magnesium sulfate heptahydrate as a catalyst

2011 ◽  
Vol 76 (9) ◽  
pp. 1191-1198 ◽  
Author(s):  
Bahador Karami ◽  
Saeed Khodabakhshi
Keyword(s):  
Catalytic Activity ◽  
Magnesium Sulfate ◽  
Room Temperature ◽  
Facile Synthesis ◽  
Dicarbonyl Compounds ◽  
Sulfate Heptahydrate ◽  
Quinoxaline Derivatives ◽  
Work Up ◽  
Derivatives Of

Convenient and simple procedures for the synthesis of phenazine and quinoxaline derivatives were developed via a reaction of ophenylenediamines and 1,2-dicarbonyl compounds. In addition, the synthesis of two new derivatives of 1,4-benzo diazine derivatives and the catalytic activity of magnesium sulfate heptahydrate (MgSO4?7H2O) in the room temperature condensation of o-phenylenediamines and 1,2- dicarbonyl compounds in ethanol as solvent are reported. This method has many appealing attributes, such as excellent yields, short reactions times, and simple work-up procedures.

The Catalytic Activity of TiO2 Toward a Multicomponent Reaction Depends on its Morphology, Mechanoactivation and Presence of Visible Light

2020 ◽  
Vol 1 (1) ◽  
pp. 37-42
Author(s):  
Subramanian Thirumeni ◽  
Choumini Balasanthiran ◽  
Grigoriy Sereda
Keyword(s):  
Catalytic Activity ◽  
Visible Light ◽  
Tio2 Nanoparticles ◽  
Multicomponent Reaction ◽  
Multicomponent Reactions ◽  
Room Temperature ◽  
Light Condition ◽  
Ambient Light ◽  
Multicomponent Synthesis ◽  
Ambient Light Condition

Aims: Test the hypothesis that the catalytic activity of TiO2 nanoparticles towards a liquidphase or mechanoactivated multicomponent reaction can be tuned by visible light and the shape of nanoparticles. Background: Catalytic multicomponent reactions have been proven to be excellent synthetic approaches to a series of biologically relevant compounds including 2-amino-4H-benzo[b]pyrans. However, the potential photocatalytic activity and structural diversity of nanostructured catalysts remained underutilized in the design of new catalytic systems. Objective: Harness the photocatalytic potential and diverse morphology of TiO2 particles as catalysts for the liquid phase and mechanoactivated multicomponent organic reactions. Results: Catalytic activity of TiO2 nanoparticles towards multicomponent synthesis of 2-amino-4Hbenzo[ b]pyrans is increased by visible light. The nanorod-shaped TiO2 nanoparticles have shown substantially higher catalytic activity towards mechanoactivated multicomponent synthesis of 2- amino-4H-benzo[b]pyrans than their spherically-shaped counterparts. Conclusion: : An efficient methodology for the synthesis of 2-amino-4H-benzo[b]pyrans under ambient light condition has been developed using TiO2 nanorods (high aspect ratio anatase nanocrystals) as photocatalyst. This simple method furnished the corresponding terahydrobenzopyrans in high yields via three component reaction of aldehyde, malononitrile, and dimidone under solvent free reaction conditions at room temperature. The reaction takes 8-10 min at room temperature under ambient light condition and the catalyst can be reused multiple times. Utilization of light and the nanorod morphology of the catalyst through mechanoactivation has been applied for the -first time to the synthetic technique of multicomponent reactions. The synthetic procedures for 2-amino-4Hbenzo[ b]pyrans have been improved.

Facile synthesis of composite g-C3N4/WO3: a nontoxic photocatalyst with excellent catalytic activity under visible light

RSC Advances ◽  
2013 ◽  
Vol 3 (33) ◽  
pp. 13646 ◽  
Author(s):  
Yipeng Zang ◽  
Liping Li ◽  
Ying Zuo ◽  
Haifeng Lin ◽  
Guangshe Li ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Visible Light ◽  
Facile Synthesis

Magnetic, recyclable PtyCo1−y/Ti3C2X2 (X = O, F) catalyst: a facile synthesis and enhanced catalytic activity for hydrogen generation from the hydrolysis of ammonia borane

2017 ◽  
Vol 41 (7) ◽  
pp. 2793-2799 ◽  
Author(s):  
Guangyin Fan ◽  
Xiaojing Li ◽  
Yuling Ma ◽  
Yun Zhang ◽  
Jiangtao Wu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Room Temperature ◽  
Hydrogen Generation ◽  
Ammonia Borane ◽  
Catalytic Performance ◽  
Facile Synthesis ◽  
Hydrolysis Of ◽  
Excellent Catalytic Performance ◽  
Magnetic Recyclable

Magnetic recyclable PtyCo1−y/Ti3C2X2 (X = O, F) catalyst exhibits excellent catalytic performance for the hydrolysis of AB at room temperature.

Facile synthesis of Z-scheme Ag2CO3/Ag/AgBr ternary heterostructured nanorods with improved photostability and photoactivity

2015 ◽  
Vol 3 (10) ◽  
pp. 5474-5481 ◽  
Author(s):  
Jingjing Li ◽  
Yunlong Xie ◽  
Yijun Zhong ◽  
Yong Hu
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Anion Exchange ◽  
Room Temperature ◽  
Chemical Compositions ◽  
Facile Synthesis ◽  
Reaction Route ◽  
One Dimensional ◽  
Enhanced Photostability

We demonstrated a facile reaction route, visible-light induced reduction followed by an anion exchange, to prepare one-dimensional (1D) Z-scheme Ag2CO3/Ag/AgBr ternary heterostructured nanorods (HNRs) with tunable chemical compositions at room temperature. The as-obtained 1D Ag2CO3/Ag/AgBr HNRs exhibit significantly enhanced photostability and photocatalytic activity.

Facile synthesis of dimeric BODIPY and its catalytic activity for sulfide oxidation under visible light

RSC Advances ◽  
2014 ◽  
Vol 4 (28) ◽  
pp. 14786-14790 ◽  
Author(s):  
Liang Wang ◽  
Jing Cao ◽  
Jian-wei Wang ◽  
Qun Chen ◽  
Ai-jun Cui ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Visible Light ◽  
Sulfide Oxidation ◽  
Facile Synthesis

An efficient and green dimeric BODIPY-catalyzed sulfide oxidation under visible light is described.

ChemInform Abstract: Facile Synthesis of Dimeric BODIPY and Its Catalytic Activity for Sulfide Oxidation under Visible Light.

ChemInform ◽  
2014 ◽  
Vol 45 (47) ◽  
pp. no-no
Author(s):  
Liang Wang ◽  
Jing Cao ◽  
Jian-wei Wang ◽  
Qun Chen ◽  
Ai-jun Cui ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Visible Light ◽  
Sulfide Oxidation ◽  
Facile Synthesis
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