A One-Pot Hydrothermal Synthesis of Eu/BiVO4 Enhanced Visible-Light-Driven Photocatalyst for Degradation of Tetracycline

2020 ◽  
Vol 20 (5) ◽  
pp. 3053-3059 ◽  
Author(s):  
Zhenzhao Pei ◽  
Heng Jia ◽  
Yulong Zhang ◽  
Pei Wang ◽  
Yabao Liu ◽  
...  

Eu/BiVO4 photocatalyst was synthesized by a facile one-step hydrothermal method. The structures and morphologies of Eu/BiVO4 photocatalysts were investigated by XRD, SEM and FT-IR and their photocatalytic activity was evaluated by the degradation of tetracycline hydrochloride (TCH) under the visible light irradiation. From the photocatalytic activity test, 1% Eu/BiVO4 displayed more superior photodegradation efficiency with 91.4% degradation efficiency of TCH in 150 min by contrast with 77.3% degradation rate of pure BiVO4. The mechanism has been explored that h+ is the primary active species, and ·OH is a secondary active substance in the photocatalytic process.

Nanomaterials ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 697 ◽  
Author(s):  
Jun Yang ◽  
Taiping Xie ◽  
Chenglun Liu ◽  
Longjun Xu

Dy-doped BiOCl powder photocatalyst was synthesized A one–step coprecipitation method. The incorporation of Dy3+ replaced partial Bi3+ in BiOCl crystal lattice system. For Rhodamine B (RhB) under visible light irradiation, 2% Dy doped BiOCl possessed highly efficient photocatalytic activity and photodegradation efficiency. The photodegradation ratio of RhB could reach 97.3% after only 30 min of photocatalytic reaction; this was more than relative investigations have reported in the last two years. The main reason was that the 4f electron shell of Dy in the BiOCl crystal lattice system can generate a special electronic shell structure that facilitated the transfer of electron from valance band to conduction band and separation of the photoinduced charge carrier. Apart from material preparation, this research is expected to provide important references for RhB photodegradation in practical applications.


2015 ◽  
Vol 17 (44) ◽  
pp. 29479-29482 ◽  
Author(s):  
Linli Tang ◽  
Yuhang Du ◽  
Chuncai Kong ◽  
Shaodong Sun ◽  
Zhimao Yang

Novel Cu2O cubes with exposed {110} facets have been prepared. When evaluated for the photocatalytic performances, the etched Cu2O manifest higher photocatalytic activity than that of the normal Cu2O cubes.


2017 ◽  
Vol 41 (9) ◽  
pp. 3432-3442 ◽  
Author(s):  
Mega Joy ◽  
A. Peer Mohamed ◽  
K. G. K. Warrier ◽  
U. S. Hareesh

The MoS2/ZnS binary heterojunctions obtained by a facile one-step hydrothermal route is competent to retrench the forbidden energy gap by creating sulfur vacancies. The tailoring of the lattice parameters of sulfides for interfacial charge transfer through the heterojunctions enhanced photocatalytic activity.


Author(s):  
M. Shamshi Hassan

CoTiO3-TiO2 composite nanofibrous photocatalysts were synthesized by means of the one-step electrospinning method. The samples were characterized by a range of different methods (XRD, SEM, EPMA, FT-IR, UV-DRS, and TEM). Photocatalytic activity was performed for the degradation of rhodamine 6G under visible light. The results showed that CoTiO3-TiO2 composite photocatalysts were successfully synthesized. The average sizes of the diameters of the composite nanofibers were found to be 300 to 400 nm. The UV–Vis diffuse reflectance spectra of the CoTiO3-TiO2 composite showed an absorption wavelength, in the visible light region, having a band gap energy value of 2.21 eV. The CoTiO3-TiO2 composite showed higher photocatalytic efficiency than that of pristine TiO2; which can be attributed to the heterojunctional interaction between CoTiO3 and TiO2.


RSC Advances ◽  
2018 ◽  
Vol 8 (14) ◽  
pp. 7518-7522 ◽  
Author(s):  
YuanYou Wang ◽  
SuoJin Chen ◽  
DangQin Jin ◽  
AiQin Gong ◽  
XueJiao Xu ◽  
...  

Active carbon/BiOI microspheres have promising applications as an efficient visible-light photocatalyst for the treatment of Cr(vi)-polluted water.


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