Uniform decoration of UiO-66-NH2 nanooctahedra onto TiO2 electrospun nanofibers for enhancing photocatalytic H2 production based on multi-step interfacial charge transfer

2021 ◽  
Author(s):  
Jie Wang ◽  
Zhen-Gang Sun ◽  
Xiaoyi Jiang ◽  
Qing Yuan ◽  
Da-Peng Dong ◽  
...  

Metal-organic frameworks (MOFs) materials have been extensively incorporated with inorganic semiconductor photocatalysts to improve the photocatalytic activity through an efficient charge transfer process across their hetero-interface. In this work, octahedral...

RSC Advances ◽  
2015 ◽  
Vol 5 (105) ◽  
pp. 86705-86712 ◽  
Author(s):  
Jin Luo ◽  
Xiaosong Zhou ◽  
Jinquan Zhang ◽  
Zhihua Du

The efficient charge transfer at the interfaces of the Ag2CO3/SnS2 composite due to the inner established electric field (E), which effectively facilitated interfacial charge transfer and improved photogenerated electron–hole pairs separation.


Author(s):  
Diana Guerrero-Araque ◽  
David Ramírez-Ortega ◽  
Próspero Acevedo-Peña ◽  
Francisco Tzompantzi ◽  
Héctor A. Calderón ◽  
...  

Author(s):  
Farshad Mirzaei ◽  
Alireza Abbasi ◽  
Somayeh Farhang Dehghan ◽  
Mohammad Reza Pourmand ◽  
Saeideh-Sadat Mortazavi ◽  
...  

2020 ◽  
Vol 528 ◽  
pp. 147053 ◽  
Author(s):  
Siqi Wang ◽  
Fanqi Meng ◽  
Xuejiao Sun ◽  
Mingjun Bao ◽  
Jiawen Ren ◽  
...  

2012 ◽  
Vol 05 (03) ◽  
pp. 1250021 ◽  
Author(s):  
SOUMEN DHARA ◽  
P. K. GIRI

In this work, we investigated the effect of organic CuPc coating on the surface of the ZnO NWs for possible improvement in the photoluminescence, photoconductivity and photoresponse. As a result of surface covering, the UV emission is enhanced by a factor of 7–8 while the green emission is reduced to half. Despite an increase in dark current after the CuPc covering, we obtained a significant improvement in the photocurrent and photoresponse rate. The photocurrent-to-dark current ratio is nearly doubled and the photoresponse process becomes faster for the ZnO/CuPc heterostructure. Improvements in the photoluminescence and photoconductivity for the ZnO/CuPc heterostructure are explained on the basis of modification of surface defects and interfacial charge transfer process.


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