Photocatalytic reductive defluorination of perfluorooctanoic acid in water under visible light irradiation: the role of electron donor

2020 ◽  
Vol 6 (6) ◽  
pp. 1638-1648 ◽  
Author(s):  
Wanjun Wang ◽  
Yu Chen ◽  
Guiying Li ◽  
Wenquan Gu ◽  
Taicheng An
Keyword(s):  
Visible Light ◽  
Electron Donor ◽  
Visible Light Irradiation ◽  
Perfluorooctanoic Acid ◽  
Light Irradiation ◽  
Visible Light Driven ◽  
Reductive Pathway

Visible light-driven defluorination of PFOA was achieved via a photo-reductive pathway by using Pt–Bi2O4 as a photocatalyst and KI as an electron donor.

Visible light-driven novel g-C3N4/NiFe-LDH composite photocatalyst with enhanced photocatalytic activity towards water oxidation and reduction reaction

2015 ◽  
Vol 3 (36) ◽  
pp. 18622-18635 ◽  
Author(s):  
Susanginee Nayak ◽  
Lagnamayee Mohapatra ◽  
Kulamani Parida
Keyword(s):  
Photocatalytic Activity ◽  
Composite Materials ◽  
Visible Light ◽  
Water Splitting ◽  
Visible Light Irradiation ◽  
Water Oxidation ◽  
Reduction Reaction ◽  
Light Irradiation ◽  
Composite Photocatalyst ◽  
Visible Light Driven

Dispersion of exfoliated CN over the surface of exfoliated LDH composite materials, and its photocatalytic water splitting under visible-light irradiation.

Solvothermal synthesis and visible light-driven photocatalytic degradation for tetracycline of Fe-doped SrTiO3

RSC Advances ◽  
2014 ◽  
Vol 4 (88) ◽  
pp. 47615-47624 ◽  
Author(s):  
Ping Li ◽  
Chunbo Liu ◽  
Guoling Wu ◽  
Yang Heng ◽  
Shuang Lin ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Solvothermal Synthesis ◽  
Solvothermal Method ◽  
Light Irradiation ◽  
Photocatalytic Activities ◽  
Visible Light Driven ◽  
Facile Solvothermal Method

In this paper, Fe-doped SrTiO3 (FSTO) photocatalysts were successfully prepared via a facile solvothermal method, and their photocatalytic activities for degrading tetracycline (TC) under visible light irradiation were examined.

Dehydrogenative 6π Heterocyclization under Visible Light Irradiation and Mechanistic Insights

2021 ◽  
Author(s):  
Zhao Zhang ◽  
Haohua Chen ◽  
Niklas Keller ◽  
Qin Xiong ◽  
Lei Liu ◽  
...  
Keyword(s):  
Transition Metals ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Reaction Proceeds ◽  
Visible Light Driven

A visible-light-driven oxidative 6π heterocycilization for the synthesis of structurally diverse π-conjugated polycyclic 1-aminoisoquinolines has been developed. The reaction proceeds under visible-light or sunshine, obviates photocatalyst and transition-metals, and features...

Visible-light-driven photocatalysis of heterostructure Ag/Bi2WO6 nanocomposites and their photocatalytic degradation of dye under visible light irradiation

2015 ◽  
Vol 42 (3) ◽  
pp. 1651-1662 ◽  
Author(s):  
Phattranit Dumrongrojthanath ◽  
Anukorn Phuruangrat ◽  
Patcharanan Junploy ◽  
Somchai Thongtem ◽  
Titipun Thongtem
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Visible Light Driven

Dechlorination of DDT catalyzed by visible-light-driven system composed of vitamin B12 derivative and Rhodamine B

2013 ◽  
Vol 17 (01n02) ◽  
pp. 135-141 ◽  
Author(s):  
Keishiro Tahara ◽  
Kumiko Mikuriya ◽  
Takahiro Masuko ◽  
Jun-ichi Kikuchi ◽  
Yoshio Hisaeda
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Rhodamine B ◽  
Cobalt Complex ◽  
Light Irradiation ◽  
Vitamin B ◽  
Free Process ◽  
Driven System ◽  
Derivative System ◽  
Visible Light Driven

The visible-light-driven dechlorination of 1,1-bis(4-chlorophenyl)-2,2,2-trichloroethane (DDT) was carried out in the presence of a hydrophobic vitamin B12 , heptamethyl cobyrinate perchlorate and Rhodamine B . DDT was successfully dechlorinated to form 1,1-bis(4-chlorophenyl)-2,2-dichloroethane (DDD) as the mono-dechlorinated product upon visible light irradiation with a tungsten lamp (λ > 440 nm). Upon prolonged visible light irradiation to DDT, DDMU (1-chloro-2,2-bis(4-chlorophenyl)ethylene), DDMS (1-chloro-2,2-bis(4-chlorophenyl)ethane) and DCS (trans-4,4′-dichlorostilbene) were obtained as the di- and tri-dechlorinated products. The use of the photostable organic sensitizer enabled prolonged photocatalysis via a noble-metal-free process. The vitamin B12 derivative was replaced by an imine/oxime-type cobalt complex although the cobalt complex system showed a lower catalytic activity than the B12 derivative system. The dechlorination mechanism in the B12 -Rhodamin B system was investigated by various methods such as UV-vis absorption and fluorescence quenching.

The effect of molecular structure and fluorination on the properties of pyrene-benzothiadiazole-based conjugated polymers for visible-light-driven hydrogen evolution

2018 ◽  
Vol 9 (35) ◽  
pp. 4468-4475 ◽  
Author(s):  
Chang Cheng ◽  
Xunchang Wang ◽  
Yaoyao Lin ◽  
Luying He ◽  
Jia-Xing Jiang ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Visible Light ◽  
Conjugated Polymers ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Evolution Rate ◽  
Fluorinated Polymer ◽  
Hydrogen Evolution Rate ◽  
Visible Light Driven

The linear non-fluorinated polymer L-PyBT exhibited an impressive hydrogen evolution rate up to 83.7 μmol h−1 under visible light irradiation.

Role of Ag3PO4 and Fe3O4 on the photocatalytic performance of magnetic Ag3PO4/ZnO/Fe3O4 nanocomposite under visible light irradiation

Solar Energy ◽  
2018 ◽  
Vol 166 ◽  
pp. 308-316 ◽  
Author(s):  
Nuray Güy ◽  
Keziban Atacan ◽  
Ertuğrul Karaca ◽  
Mahmut Özacar
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Light Irradiation

Role of platinum-like tungsten carbide as cocatalyst of CdS photocatalyst for hydrogen production under visible light irradiation

2008 ◽  
Vol 346 (1-2) ◽  
pp. 149-154 ◽  
Author(s):  
Jum Suk Jang ◽  
Dong Jin Ham ◽  
Narayanan Lakshminarasimhan ◽  
Won yong Choi ◽  
Jae Sung Lee
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Tungsten Carbide ◽  
Visible Light Irradiation ◽  
Light Irradiation

N-Loaded TiO2 for Photocatalytic Degradation of Methyl Orange under Visible Light Irradiation

2012 ◽  
Vol 622-623 ◽  
pp. 883-888
Author(s):  
Natkritta Boonprakob ◽  
Natda Wetchakun ◽  
Sukon Phanichphant ◽  
Jun Chen ◽  
Burapat Inceesungvorn
Keyword(s):  
Methyl Orange ◽  
Visible Light ◽  
Band Gap ◽  
Visible Light Irradiation ◽  
Sol Gel ◽  
Band Gap Energy ◽  
Light Irradiation ◽  
Gap Energy ◽  
Visible Light Driven ◽  
Degradation Of Methyl Orange

Nitrogen-loaded TiO2(N-loaded TiO2), a visible-light driven catalyst, was successfully synthesized by the modified sol-gel method. Physical characterizations of the as-prepared catalysts have been performed by using X-ray diffraction (XRD), Diffuse reflectance UVvisspectroscopy(DRUVvis), Raman spectroscopyand BETspecific surface areain order to obtain structure-activity relationship. Results from Raman spectroscopy clearly suggested that N atoms were incorporated into the TiO2crystal lattice as evidenced by the vibrational peak of TiN in TiO2-xNx.DR UVvis results also suggested that the nitrogen dopant might be responsible for narrowing the TiO2band gap energy, thus resulting in a shift towards the visiblelight region. Photocatalytic activity of N-loaded TiO2evaluated through the degradation of methyl orange (MO)under visible light irradiation (l> 400 nm) indicated that all N-loaded photocatalysts exhibited significantly higher activities than the unloaded TiO2and Degussa P25 TiO2. According to the results from DR UV-vis, XRD and BET studies, the enhanced photoactivity observed from N-loaded samples might be due to a decrease in TiO2band gap energy and/or changes in chemical and physical properties of the materials upon loading with nitrogen.

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