A one-pot method for the preparation of graphene–Bi2MoO6 hybrid photocatalysts that are responsive to visible-light and have excellent photocatalytic activity in the degradation of organic pollutants

Carbon ◽  
2012 ◽  
Vol 50 (14) ◽  
pp. 5256-5264 ◽  
Author(s):  
Peifang Wang ◽  
Yanhui Ao ◽  
Chao Wang ◽  
Jun Hou ◽  
Jin Qian
NANO ◽  
2016 ◽  
Vol 11 (05) ◽  
pp. 1650054 ◽  
Author(s):  
Bin Zeng ◽  
Yang Yin

CuS hexagonal nanosheet/graphene was fabricated by a facile one-pot microwave-thermal method. The samples possess excellent photocatalytic activity for degradation of organic pollutant under visible light. The high photocatalytic activity was attributed to the deposition of CuS hexagonal nanosheet onto graphene. CuS nanosheet serves as a transporter which efficiently inhibits the recombination of the photo-induced charge carriers in the nanocomposites. The developed method demonstrates a facile approach towards the synthesis of two-dimensional semiconductor-graphene nanocomposites with excellent photocatalytic performance under visible light.


2016 ◽  
Vol 45 (3) ◽  
pp. 1160-1165 ◽  
Author(s):  
Yu Huang ◽  
Jun Chen ◽  
Wei Zou ◽  
Linxing Zhang ◽  
Lei Hu ◽  
...  

TiO2/CdS porous hollow microspheres have been one-pot rapidly synthesized and exhibit an excellent photocatalytic activity of 996 μmol h−1 under visible light.


2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Longfeng Li ◽  
Jing Zhang ◽  
Xianliang Fu ◽  
Peipei Xiao ◽  
Maolin Zhang ◽  
...  

A facile ball milling-assisted solid-state reaction method was developed to synthesize Ag-Cu2O/graphene oxide (GO) nanocomposites. In the resultant complex heterostructures, Ag nanocrystals were mainly deposited on the surface of Cu2O, while Ag-Cu2O composites were anchored onto GO sheets. The resultant Ag-Cu2O/GO nanocomposites exhibited excellent photocatalytic activity with 90% of methyl orange (MO) dye degradation efficiency after 60 min of visible-light irradiation, which was much higher than that of either Cu2O or Ag-Cu2O. This study opens a new avenue to fabricate visible-light-responsive photocatalyst with high performance for environmental pollution purification.


2016 ◽  
Vol 69 (1) ◽  
pp. 119 ◽  
Author(s):  
Li Lin ◽  
Ya Wang ◽  
Manhong Huang ◽  
Donghui Chen

Three-dimensional (3D) BiOBr/BiOI hierarchical microspheres were successfully fabricated on the surface of fly ash cenospheres (FACs) via a facile one-pot solvothermal method for the first time. The as-prepared samples were characterized by XRD, SEM, energy-dispersive X-ray spectroscopy, UV–visible diffuse reflectance spectroscopy, and high-resolution transmission electron microscopy. The results indicated that the loaded hierarchical microspheres exhibited a uniform distribution, and some aggregation was observed. These well-dispersed hierarchical microspheres were composed of 2D nanosheets, which possess heterojunction structures. Based on the photodegradation tests examining the removal of rhodamine B from water under visible light irradiation (λ > 420 nm), the photocatalytic activity of BiOB/BiOI/FACs was superior to that of BiOBr/FACs and BiOI/FACs. A proposed mechanism for the enhanced photocatalytic activity displayed by BiOB/BiOI/FACs is discussed.


2017 ◽  
Vol 46 (37) ◽  
pp. 12675-12682 ◽  
Author(s):  
Taotao Lv ◽  
Di Li ◽  
Yuanzhi Hong ◽  
Bifu Luo ◽  
Dongbo Xu ◽  
...  

The development of Z-scheme heterojunction photocatalytic systems is a promising strategy to produce hydrogen and for pollutant degradation.


RSC Advances ◽  
2017 ◽  
Vol 7 (46) ◽  
pp. 28797-28801 ◽  
Author(s):  
W. X. Liao ◽  
X. L. Zhao ◽  
T. S. Wang

A new type of Bi-based p-type semiconductor, Bi7.38Cr0.62O12+x, has a strong photoelectric response until 647.4 nm and an excellent photocatalytic activity for decomposition and O2 production.


Sign in / Sign up

Export Citation Format

Share Document