Fullerene C70–TiO2 hybrids with enhanced photocatalytic activity under visible light irradiation

2015 ◽  
Vol 3 (42) ◽  
pp. 21090-21098 ◽  
Author(s):  
Shengyao Wang ◽  
Changwei Liu ◽  
Ke Dai ◽  
Peng Cai ◽  
Hao Chen ◽  
...  

Longer-lived photo-generated charge carriers and efficient visible light adsorption give rise to excellent visible-light-driven photoactivity of C70–TiO2 hybrids.

2015 ◽  
Vol 3 (36) ◽  
pp. 18622-18635 ◽  
Author(s):  
Susanginee Nayak ◽  
Lagnamayee Mohapatra ◽  
Kulamani Parida

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


2021 ◽  
pp. 2150334
Author(s):  
Yi-Feng Chai ◽  
Zhong-Hua Zhu ◽  
Ming-Wei Liu ◽  
Jing Zeng ◽  
Gui-Fang Huang ◽  
...  

Development photoinduced photocatalysts is a significant approach to improve photocatalytic activity and stability. Herein, we successfully prepared Zn[Formula: see text]Cd[Formula: see text]S/CeO2 composites by a facile method. It is found that the Zn[Formula: see text]Cd[Formula: see text]S/CeO2 composites show significant enhancement in photocatalytic activity for methyl orange (MO) degradation under visible and UV light irradiation. The degradation efficiency reaches up to 3.7 times higher than that of pure CeO2 under visible light irradiation. Moreover, the Zn[Formula: see text]Cd[Formula: see text]S/CeO2 samples have almost no loss of photocatalytic activity after five recycles, indicating good photocatalytic stability of the samples. The attractive photocatalytic activity of the Zn[Formula: see text]Cd[Formula: see text]S/CeO2 samples could be attributed to the robust charge carriers transfer and separation.


2015 ◽  
Vol 3 (19) ◽  
pp. 10360-10367 ◽  
Author(s):  
Tianli Wu ◽  
Shijian Chen ◽  
Dingke Zhang ◽  
Junke Hou

In this work, semimetallic MoP2 nanoparticles are discovered as a new photocatalyst to efficiently degenerate methyl orange and produce H2 from water under visible light irradiation.


Author(s):  
Shu Chin Lee ◽  
Wee Shern Chew ◽  
Hendrik O. Lintang ◽  
Leny Yuliati

Carbon nitride is a material of interest for photocatalytic reactions due to its catalytic and visible light absorption properties. However, the photocatalytic activity is still low. Hence, modifications must be carried out to improve the photocatalytic activity of carbon nitride. In this work, a series of gallium oxide/carbon nitride composites with various gallium to carbon ratios (Ga/C = 1-50 mol%) was prepared by impregnation method for removal of cyclohexane under visible light irradiation for the first time. The successful preparation of gallium oxide/carbon nitride composites was supported by several characterization techniques. X-ray diffraction (XRD) patterns and diffuse reflectance UV-visible (DR UV-vis) spectra revealed that the increased Ga/C ratio resulted in the increased formation of Ga2O3. Furthermore, all the prepared composite samples also showed visible light absorption up to about 430 nm. In the photocatalytic removal of cyclohexane under 6 h of visible light irradiation, sample with low loading of 1 mol% Ga/C improved the photocatalytic activity of carbon nitride for two times. The high activity obtained on the gallium oxide (1 mol%)/carbon nitride composite clearly suggested the presence of synergic effect between small amount of gallium oxide and carbon nitride when they were combined. This study showed that a visible light-driven gallium oxide/carbon nitride composite could be prepared by impregnating a small amount of gallium oxide on carbon nitride and the composite is a potential photocatalyst for removal of cyclohexane under visible light irradiation.  


RSC Advances ◽  
2017 ◽  
Vol 7 (67) ◽  
pp. 42398-42406 ◽  
Author(s):  
Yuzhen Bu ◽  
Junli Xu ◽  
Yawen Li ◽  
Qian Liu ◽  
Xia Zhang

The suitable modification of MoS2 with 3D hierarchical BiOI could improve the separation efficiency of photogenerated charge carriers.


2017 ◽  
Vol 41 (20) ◽  
pp. 11722-11730 ◽  
Author(s):  
Satheesh Rajamohan ◽  
Vignesh Kumaravel ◽  
Rajarajan Muthuramalingam ◽  
Suganthi Ayyadurai ◽  
Ahmed Abdel-Wahab ◽  
...  

Photo-generated charge carriers are effectively separated on a magnetic nano-composite (Fe3O4–Ag2WO4) surface under visible light irradiation.


2015 ◽  
Vol 3 (7) ◽  
pp. 3935-3943 ◽  
Author(s):  
Dongfang Hou ◽  
Xianluo Hu ◽  
Wingkei Ho ◽  
Pei Hu ◽  
Yunhui Huang

Porous Cr-doped SrTiO3 nanotubes by electrospinning exhibit enhanced photocatalytic activity for removal of azo dye and NO under visible-light irradiation.


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