Impregnation versus Bulk Synthesis: How the Synthetic Route Affects the Photocatalytic Efficiency of Nb/Ta:N Codoped TiO2 Nanomaterials

2015 ◽  
Vol 119 (42) ◽  
pp. 24104-24115 ◽  
Author(s):  
Luca Rimoldi ◽  
Claudia Ambrosi ◽  
Giovanni Di Liberto ◽  
Leonardo Lo Presti ◽  
Michele Ceotto ◽  
...  
Keyword(s):  
Photocatalytic Efficiency ◽  
Synthetic Route ◽  
Codoped Tio2 ◽  
Tio2 Nanomaterials

Facile synthesis of hierarchically meso/nanoporous s- and c-codoped TiO2 and its high photocatalytic efficiency in H2 generation

2013 ◽  
Vol 129 ◽  
pp. 294-300 ◽  
Author(s):  
Hongwei Bai ◽  
Keith Shan Yao Kwan ◽  
Zhaoyang Liu ◽  
Xiaoxiao Song ◽  
Siew Siang Lee ◽  
...  
Keyword(s):  
Photocatalytic Efficiency ◽  
Facile Synthesis ◽  
Codoped Tio2 ◽  
H2 Generation

scholarly journals Characterization of Co2+- and Fe3+-Codoped TiO2 Nanomaterials for Photocatalytic Degradation of Organic Pollutants under Visible Light Irradiation

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Nguyen Thi Tuyet Mai ◽  
Nguyen Kim Nga ◽  
Dang Thi Minh Hue ◽  
Ta Ngoc Dung ◽  
Huynh Dang Chinh ◽  
...  
Keyword(s):  
Optical Absorption ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Organic Pollutants ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Diffraction Field ◽  
X Ray ◽  
Codoped Tio2 ◽  
Tio2 Nanomaterials

In this study, TiO2 nanomaterials were prepared using a solvothermal method and codoped with Co2+ and Fe3+ ions for the photocatalytic degradation of organic pollutants under visible light. The physicochemical properties of the obtained materials were studied by powder X-ray diffraction, field emission electron scanning microscopy, energy-dispersive X-ray spectroscopy, and nitrogen adsorption isotherms. Optical absorption was characterized by UV-vis absorption spectroscopy. The photocatalytic activities of the prepared materials were evaluated through methylene blue (MB) degradation under visible light irradiation. Results showed the excellent performance of MB degradation investigated on TiO2 samples codoped with Co2+ and Fe3+ in comparison with undoped and Co2+-doped TiO2 samples. The codoped TiO2 samples degraded 85%–90% of MB after 120 min, whereas all the prepared TiO2 samples were composed of pure anatase phase and had a spherical-like shape and mean crystalline size ranging from 6.2 nm to 7.8 determined by Scherrer’s equation. The optical absorption of the TiO2 codoped with Co2+ and Fe3+ was significantly enhanced toward the visible light region. The pseudo-second-order kinetic model fits well for the degradation of MB on as-prepared TiO2 codoped with Co2+ and Fe3+.

A General Convergent Strategy for the Synthesis of Tetrasubstituted Furan Fatty Acids (FuFAs)

2019 ◽  
Author(s):  
Yamin Wang ◽  
Gareth Pritchard ◽  
Marc Kimber
Keyword(s):  
Fatty Acids ◽  
Spectral Data ◽  
Synthetic Route ◽  
Furan Fatty Acids

Synthetic route for the synthesis of tetrasubstituted furan fatty acids; including experimental details, characterisation, and spectral data of all intermediates.

Palladium-Catalyzed Asymmetric Annulation Between Aryl Iodides and Racemic Epoxides Using a Chiral Norbornene Cocatalyst

2018 ◽  
Author(s):  
Guangbin Dong ◽  
Renhe Li
Keyword(s):  
Isopropyl Ester ◽  
Synthetic Route ◽  
Initial Development ◽  
Aryl Iodides ◽  
Palladium Catalyzed

Herein, we describe our initial development of an asymmetric Pd-catalyzed annulation between aryl iodides and racemic epoxides for synthesis of 2,3-dihydrobenzofurans using a chiral norbornene cocatalyst. A series of enantiopure ester-, amide- and imide-substituted norbornenes have been prepared with a reliable synthetic route. Promising enantioselectivity (42-45% ee) has been observed using the isopropyl ester-substituted norbornene (N1*) and the amide-substituted norbornene (N7*).

Synthesis and Biological Properties of some New Lead Sulphonamide and Carboxamide Scaffolds Bearing Coumarin Moiety (Mini Review)

2020 ◽  
Vol 20 ◽  
Author(s):  
Cosmas Chinweike Eze ◽  
Mercy Amarachukwu Ezeokonkwo ◽  
Benjamin Ebere Ezema ◽  
Abraham Efeturi Onoabedje ◽  
David Izuchukwu Ugwu
Keyword(s):  
Biological Properties ◽  
Therapeutic Agents ◽  
Amide Group ◽  
Pharmacological Properties ◽  
Important Class ◽  
Synthetic Route ◽  
Therapeutic Activities

: Coumarin, sulphonamide and amide scaffolds exhibit diverse pharmacological features and constitute an important class of therapeutic agents. In this review, we have discussed the synthesis, biological properties, and SAR of coumarins containing sulphonamide or amide group in the last seven years. Many reviews on the therapeutic activities of coumarins, sulphonamides, and amides have been published, hence the authors focused on coumarin-linked sulphonamide or amide scaffolds. The review provides information on the synthetic route to new coumarins containing sulphonamide or amide groups with improved pharmacological properties.

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