Visible light assisted activation of peroxymonosulfate by bimetallic MOF based heterojunction MIL-53(Fe/Co)/CeO2 for Atrazine degradation: pivotal roles of dual redox cycle for reactive species generation

2021 ◽  
pp. 133069
Author(s):  
Debashis Roy ◽  
Sudarsan Neogi ◽  
Sirshendu De
Keyword(s):  
Visible Light ◽  
Reactive Species ◽  
Redox Cycle ◽  
Atrazine Degradation

scholarly journals A novel Nb2O5/Bi2WO6 heterojunction photocatalytic oxidative desulfurization catalyst with high visible light-induced photocatalytic activity

RSC Advances ◽  
2017 ◽  
Vol 7 (81) ◽  
pp. 51046-51054 ◽  
Author(s):  
Jing Wu ◽  
Jian Li ◽  
Jin Liu ◽  
Jin Bai ◽  
Lina Yang
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Oxidative Desulfurization ◽  
Reactive Species ◽  
Superoxide Radicals

A novel Nb2O5/Bi2WO6 heterojunction catalyst was synthesized and applied in PODS of DBT. It shows higher activity than pure Nb2O5 and Bi2WO6 in visible light induced PODS of DBT, in which holes and superoxide radicals are the main reactive species.

Facile synthesis of oxygen defective yolk–shell BiO2−x for visible-light-driven photocatalytic inactivation of Escherichia coli

2018 ◽  
Vol 6 (12) ◽  
pp. 4997-5005 ◽  
Author(s):  
Hongli Sun ◽  
Ho Yin Yip ◽  
Zhifeng Jiang ◽  
Liqun Ye ◽  
Irene M. C. Lo ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Visible Light ◽  
Light Absorption ◽  
Solvothermal Method ◽  
Reactive Species ◽  
Bacterial Cells ◽  
Facile Synthesis ◽  
Photocatalytic Inactivation ◽  
Visible Light Driven ◽  
Facile Solvothermal Method

Oxygen deficient yolk–shell BiO2−x microspheres prepared by facile solvothermal method showed great inactivation ability toward Escherichia coli, due to its enhanced light absorption ability and separation ability of photoinduced carriers. Reactive species O2− and H2O2 guaranteed this prominent oxidation ability toward bacterial cells.

Highly-Visible-Light Photocatalytic Performance Derived from a Lanthanide Self-Redox Cycle in Ln2O3/BiVO4 (Ln: Sm, Eu, Tb) Redox Heterojunction

2016 ◽  
Vol 120 (34) ◽  
pp. 19242-19251 ◽  
Author(s):  
Shaonan Gu ◽  
Wenjun Li ◽  
Yongzhong Bian ◽  
Fangzhi Wang ◽  
Hongda Li ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Performance ◽  
Redox Cycle ◽  
Visible Light Photocatalytic

Visible light photoredox-controlled reactions of N-radicals and radical ions

2016 ◽  
Vol 45 (8) ◽  
pp. 2044-2056 ◽  
Author(s):  
Jia-Rong Chen ◽  
Xiao-Qiang Hu ◽  
Liang-Qiu Lu ◽  
Wen-Jing Xiao
Keyword(s):  
Visible Light ◽  
Reactive Species ◽  
Important Class ◽  
Radical Ions

Radicals are an important class of versatile and highly reactive species.

Positive effect of Fe3+ ions on Bi2WO6, Bi2MoO6 and BiVO4 photocatalysis for phenol oxidation under visible light

2019 ◽  
Vol 9 (16) ◽  
pp. 4413-4421 ◽  
Author(s):  
Xubo Huang ◽  
Jianjun Zhao ◽  
Xianqiang Xiong ◽  
Shengwei Liu ◽  
Yiming Xu
Keyword(s):  
Visible Light ◽  
Catalyst Activity ◽  
Reactive Species ◽  
Phenol Oxidation ◽  
Slow Process ◽  
Simple Addition ◽  
Positive Effect

Catalyst activity is notably enhanced on simple addition of Fe3+ ions. The reaction is fast initially and then becomes slow, but the formation of reactive species is accelerated even in the slow process.

Ag3PO4 nanoparticle decorated on SiO2 spheres for efficient visible light photocatalysis

2015 ◽  
Vol 39 (12) ◽  
pp. 9242-9248 ◽  
Author(s):  
Manu Sharma ◽  
Kasinath Ojha ◽  
Aparna Ganguly ◽  
Ashok K. Ganguli
Keyword(s):  
Visible Light ◽  
Reactive Species ◽  
Light Irradiation ◽  
Visible Light Photocatalysis ◽  
Sio2 Spheres

Light irradiation on Ag3PO4 decorated SiO2 generates three reactive species (˙OH, O2−˙, and hole) leading to efficient photocatalysis.

scholarly journals Neodymium-DopedTiO2with Anatase and Brookite Two Phases: Mechanism for Photocatalytic Activity Enhancement under Visible Light and the Role of Electron

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Douga Nassoko ◽  
Yan-Fang Li ◽  
Jia-Lin Li ◽  
Xi Li ◽  
Ying Yu
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Photoelectron Spectroscopy ◽  
Diffuse Reflectance Spectroscopy ◽  
Organic Pollutant ◽  
Sol Gel ◽  
Reactive Species ◽  
X Ray ◽  
Photogenerated Electrons

Titanium dioxide (TiO2) doped with neodymium (Nd), one rare earth element, has been synthesized by a sol-gel method for the photocatalytic degradation of rhodamine-B under visible light. The prepared samples are characterized by X-ray diffractometer, Raman spectroscopy, UV-Vis diffuse reflectance spectroscopy, X-ray photoelectron spectroscopy, and Brunauer-Emmett-Teller measurement. The results indicate that the prepared samples have anatase and brookite phases. Additionally, Nd as Nd3+may enter into the lattice ofTiO2and the presence of Nd3+substantially enhances the photocatalytic activity ofTiO2under visible light. In order to further explore the mechanism of photocatalytic degradation of organic pollutant, photoluminescence spectrometer and scavenger addition method have been employed. It is found that hydroxide radicals produced by Nd-dopedTiO2under visible light are one of reactive species for Rh-B degradation and photogenerated electrons are mainly responsible for the formation of the reactive species.

Visible light activity of BaFe1-xCuxO3-δ as photocatalyst for atrazine degradation

2018 ◽  
Vol 163 ◽  
pp. 620-628 ◽  
Author(s):  
Tarek S. Jamil ◽  
H.A. Abbas ◽  
Rabab A. Nasr ◽  
Rose-Noëlle Vannier
Keyword(s):  
Visible Light ◽  
Light Activity ◽  
Atrazine Degradation
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