A visible-light driven Bi2S3@ZIF-8 core–shell heterostructure and synergistic photocatalysis mechanism

2018 ◽  
Vol 47 (3) ◽  
pp. 684-692 ◽  
Author(s):  
Yan-Hua Ding ◽  
Xiao-Lei Zhang ◽  
Na Zhang ◽  
Jian-Yong Zhang ◽  
Rui Zhang ◽  
...  

A series of Bi2S3@ZIF-8 core–shell heterostructures has been synthesized using in situ self-assembly, which exhibit enhanced photocatalytic degradation of Rhodamine B under visible-light irradiation, reaching 25.3 times that observed for pristine Bi2S3 and 26.7 times that found for commercial Degussa P25.

RSC Advances ◽  
2014 ◽  
Vol 4 (88) ◽  
pp. 47615-47624 ◽  
Author(s):  
Ping Li ◽  
Chunbo Liu ◽  
Guoling Wu ◽  
Yang Heng ◽  
Shuang Lin ◽  
...  

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.


2015 ◽  
Vol 42 (3) ◽  
pp. 1651-1662 ◽  
Author(s):  
Phattranit Dumrongrojthanath ◽  
Anukorn Phuruangrat ◽  
Patcharanan Junploy ◽  
Somchai Thongtem ◽  
Titipun Thongtem

2013 ◽  
Vol 17 (01n02) ◽  
pp. 135-141 ◽  
Author(s):  
Keishiro Tahara ◽  
Kumiko Mikuriya ◽  
Takahiro Masuko ◽  
Jun-ichi Kikuchi ◽  
Yoshio Hisaeda

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.


RSC Advances ◽  
2014 ◽  
Vol 4 (68) ◽  
pp. 35997-36005 ◽  
Author(s):  
Rajeev C. Chikate ◽  
Brijesh S. Kadu ◽  
Madhura A. Damle

Intercalated CdSe–CTAB–MMT nanocomposites with uniform dispersion of CdSe QD's are fabricated by a facile self-assembly approach that significantly enhances visible light induced photocatalytic degradation of Indigo Carmine.


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