Visible light driven photocatalytic degradation of fluoroquinolone levofloxacin drug using Ag2O/TiO2 quantum dots: a mechanistic study and degradation pathway

2017 ◽  
Vol 41 (20) ◽  
pp. 12079-12090 ◽  
Author(s):  
Amandeep Kaur ◽  
Deepak B. Salunke ◽  
Ahmad Umar ◽  
Surinder Kumar Mehta ◽  
A. S. K. Sinha ◽  
...  

Ag2O/TiO2 QDs exhibited a photocatalytic activity of 81% for the degradation of levofloxacin under visible light, which is higher than those of commercially available catalysts.

2019 ◽  
Vol 1 (5) ◽  
pp. 1864-1879 ◽  
Author(s):  
Priti Mishra ◽  
Arjun Behera ◽  
Debasmita Kandi ◽  
Kulamani Parida

Fabrication of a novel NFO@P–CN nanocomposite for the photocatalytic degradation of phenol and evolution of H2 through a Z-scheme mechanism.


2020 ◽  
Vol 8 (26) ◽  
pp. 13142-13149 ◽  
Author(s):  
Ping-Yen Hsieh ◽  
Tatsuya Kameyama ◽  
Takayuki Takiyama ◽  
Ko Masuoka ◽  
Takahisa Yamamoto ◽  
...  

Alloyed ZnSe–AgInSe2 quantum dots were used as a photocatalyst for H2 production, showing an apparent quantum yield of 3.4% at 600 nm.


RSC Advances ◽  
2014 ◽  
Vol 4 (58) ◽  
pp. 30605-30609 ◽  
Author(s):  
Fengying Zheng ◽  
Zhenhua Wang ◽  
Jie Chen ◽  
ShunXing Li

A new efficient and stable visible light driven photocatalyst, carbon quantum dots (CQDs)-surface modified P25 nanocomposite, was successfully prepared by chemical adsorption of CQDs onto the surface of TiO2 nanoparticles and then used for water treatment.


RSC Advances ◽  
2017 ◽  
Vol 7 (74) ◽  
pp. 46823-46831 ◽  
Author(s):  
Jie Liu ◽  
Liquan Jing ◽  
Guofang Gao ◽  
Yuanguo Xu ◽  
Meng Xie ◽  
...  

A highly efficient visible-light-driven composite photocatalyst of Ag2S quantum dots coupled to hexagonal SnS2 exhibited considerably increased photocatalytic activity for MO and Cr(vi) removal.


2021 ◽  
Author(s):  
Rui Zhang ◽  
ziyin chen ◽  
Chen Zhao ◽  
Kunlin Zeng ◽  
Lu Cai ◽  
...  

Abstract A novel binary BiSI/Ag2CO3 photocatalyst with excellent visible light-driven photocatalytic performance was prepared. The products were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS) and electrochemical impedance spectroscopy (EIS). The photocatalytic activity of the samples were evaluated by photocatalytic degradation of rhodamine B(RhB) under the irradiation of visible light. The results showed that the BiSI improves the photocatalytic activity of BiSI/Ag2CO3. Moreover, when the mass ratio of BiSI in BiSI/Ag2CO3 composites was 40%, the as-prepared BiSI/Ag2CO3 composite exhibited the best photocatalytic activity for degrading RhB. Finally, the possible mechanism for photodegradation over the BiSI/Ag2CO3 composites is also proposed.


CrystEngComm ◽  
2021 ◽  
Author(s):  
Bolin Zhu ◽  
Xuefei Li ◽  
Yue Wang ◽  
Na Liu ◽  
Ye Tian ◽  
...  

Highly efficient semiconductor photocatalysis technology is widely used for water purification. Herein, we prepared carbon quantum dots (CQDs)/graphitic carbon nitride (g-C3N4) on carbon cloth (CC). After the addition of CQDs,...


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