scholarly journals Cu(ii) vitamin C tunes photocatalytic activity of TiO2 nanoparticles for visible light-driven aerobic oxidation of benzylic alcohols

RSC Advances ◽  
2020 ◽  
Vol 10 (20) ◽  
pp. 12053-12059
Author(s):  
Narges Pourmorteza ◽  
Maasoumeh Jafarpour ◽  
Fahimeh Feizpour ◽  
Abdolreza Rezaeifard
Keyword(s):  
Photocatalytic Activity ◽  
Vitamin C ◽  
Visible Light ◽  
Tio2 Nanoparticles ◽  
Molecular Oxygen ◽  
Aerobic Oxidation ◽  
Free Condition ◽  
Benzylic Alcohols ◽  
Solvent Free Condition ◽  
Visible Light Driven

The combination of TiO2-AA-Cu(ii) nanoparticles with TEMPO and molecular oxygen (air) afforded an active catalytic system for the selective oxidation of diverse set of benzylic alcohols under solvent-free condition.

A synergistic effect of a cobalt Schiff base complex and TiO2 nanoparticles on aerobic olefin epoxidation

RSC Advances ◽  
2016 ◽  
Vol 6 (82) ◽  
pp. 79085-79089 ◽  
Author(s):  
Maasoumeh Jafarpour ◽  
Hossein Kargar ◽  
Abdolreza Rezaeifard
Keyword(s):  
Photocatalytic Activity ◽  
Schiff Base ◽  
Synergistic Effect ◽  
Visible Light ◽  
Tio2 Nanoparticles ◽  
Aerobic Oxidation ◽  
Schiff Base Complex ◽  
Reducing Agent ◽  
Base Complex ◽  
Visible Light Photocatalytic

A cobalt Schiff base complex and TiO2 nanoparticles exhibited a synergistic effect on the visible-light photocatalytic activity in the aerobic oxidation of various olefins in the absence of reducing agent.

Enhanced visible-light-driven photoactivities of single-walled carbon nanotubes coated with N doped TiO2 nanoparticles

RSC Advances ◽  
2015 ◽  
Vol 5 (37) ◽  
pp. 28973-28979 ◽  
Author(s):  
Tianyu Gao ◽  
Guocheng Sun ◽  
Feiyue Cheng ◽  
Ke Dai ◽  
Hao Chen ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Tio2 Nanoparticles ◽  
Single Walled Carbon Nanotubes ◽  
Doped Tio2 ◽  
Single Walled Carbon ◽  
Visible Light Driven ◽  
N Doping ◽  
Walled Carbon Nanotubes

Synergetic effects of SWCNT modification and N doping generate superior visible-light-induced photocatalytic activity of SWCNT–N/TiO2 to MWCNT–N/TiO2 and DWCNT–N/TiO2.

Bi2WO6: A highly chemoselective visible light photocatalyst toward aerobic oxidation of benzylic alcohols in water

RSC Advances ◽  
2014 ◽  
Vol 4 (6) ◽  
pp. 2904-2910 ◽  
Author(s):  
Yanhui Zhang ◽  
Yi-Jun Xu
Keyword(s):  
Sustainable Development ◽  
Green Chemistry ◽  
Visible Light ◽  
Aerobic Oxidation ◽  
Organic Transformations ◽  
Visible Light Photocatalyst ◽  
Benzylic Alcohols ◽  
Visible Light Driven

The visible-light-driven flower-like Bi2WO6 photocatalyst toward “green” chemistry oriented selective organic transformations in water is an essential pathway to sustainable development.

scholarly journals Synthesis of Superior Visible-Light-Driven Nanophotocatalyst Using High Surface Area TiO2 Nanoparticles Decorated with CuxO Particles

Catalysts ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 872
Author(s):  
Nezar H. Khdary ◽  
Waleed S. Alkhuraiji ◽  
Tamil S. Sakthivel ◽  
Duaa N. Khdary ◽  
Mohamed Abdel Salam ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Tio2 Nanoparticles ◽  
Surface Area ◽  
Organic Pollutants ◽  
High Surface ◽  
High Surface Area ◽  
Chemically Modified ◽  
Hydroxyl Free Radical ◽  
Visible Light Driven

This work provides an alternate unique simple methodology to design and synthesize chemically modified nanophotocatalyst based on high surface area TiO2 nanoparticles that can be used efficiently for the photodegradation of organic pollutants under normal visible light rather than complicated UV irradiation. In this study, dual visible light and UV-driven nanophotocatalysts were synthesized via wet chemistry procedures using high surface area TiO2 nanoparticles functionalized with (3-Aminopropyl) trimethoxysilane and attached chemically to the CuXO to improve the charge separation and maintain the non-charge recombination. The successful modification of the TiO2 nanoparticles and the formation of the TiO2-NH2-CuxO nanophotocatalyst were confirmed using different characterization techniques, and the results revealed the synthesis of high surface area TiO2 nanoparticles, and their chemical modification with an amino group and further decoration with copper to produce TiO2-NH2-CuxO nanophotocatalyst. The photocatalytic activity of TiO2 and TiO2-NH2-CuxO nanophotocatalyst were evaluated using methylene blue (MB) dye; as an example of organic pollutants. The resulting TiO2-NH2-CuxO nanophotocatalyst exhibited superior photocatalytic activity for the degradation of MB dye under visible light irradiation, due to the reduction in the energy bandgap. The degradation of the MB dye using the TiO2-NH2-CuxO nanophotocatalyst was investigated using LC-MS, and the results revealed that the hydroxyl free radical is mainly responsible for the cleavage and the degradation of the MB dye.

Oxygen-vacancy modified TiO2 nanoparticles as enhanced visible-light driven photocatalysts by wrapping and chemically bonding with graphite-like carbon

RSC Advances ◽  
2016 ◽  
Vol 6 (13) ◽  
pp. 10887-10894 ◽  
Author(s):  
Xiuqi Qin ◽  
Fang He ◽  
Lixia Chen ◽  
Yuhuan Meng ◽  
Jing Liu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Oxygen Vacancy ◽  
Visible Light ◽  
Tio2 Nanoparticles ◽  
Composite Photocatalyst ◽  
Carbon Compounds ◽  
Visible Light Driven

In this work, an effective composite photocatalyst (TC800) was prepared which exhibits higher photocatalytic activity under visible light than previously reported TiO2/non-graphene carbon compounds.

scholarly journals Rodlike AgI/Ag2Mo2O7 Heterojunctions with Enhanced Visible-Light-Driven Photocatalytic Activity

ACS Omega ◽  
2019 ◽  
Vol 4 (5) ◽  
pp. 7919-7930 ◽  
Author(s):  
Zhongyi Jiao ◽  
Zhendong Liu ◽  
Zhen Ma
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Driven

BiOCl ultrathin nanosheets modified with Fe3+ for enhanced visible light driven photocatalytic activity

2021 ◽  
Vol 411 ◽  
pp. 113211
Author(s):  
R. Rameshbabu ◽  
Gina Pecchi ◽  
Eduardo J. Delgado ◽  
R.V. Mangalaraja ◽  
M. Sathish
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Ultrathin Nanosheets ◽  
Visible Light Driven
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