Sulfur copolymer nanowires with enhanced visible-light photoresponse

2014 ◽  
Vol 50 (76) ◽  
pp. 11208-11210 ◽  
Author(s):  
Sifei Zhuo ◽  
Yi Huang ◽  
Cuibo Liu ◽  
Huan Wang ◽  
Bin Zhang

Sulfur copolymer nanowires have been reported for the first time as highly stable visible-light-active photocatalysts for photoelectrochemical water splitting depending on their size and sulfur content. The as-prepared sulfur copolymer nanowires can serve as a sulfur source and templates to create metal sulfide/copolymer heterocatalysts.

2019 ◽  
Vol 7 (16) ◽  
pp. 9537-9541 ◽  
Author(s):  
Yaqiong Wang ◽  
Matyas Daboczi ◽  
Camilo A. Mesa ◽  
Sinclair Ryley Ratnasingham ◽  
Ji-Seon Kim ◽  
...  

Photoelectrocatalytic water oxidation is reported for Bi2Fe4O9 for the first time with a faradaic efficiency of 82%.


Author(s):  
Xin Zou ◽  
Xueyang Han ◽  
Chengxiong Wang ◽  
Yunkun Zhao ◽  
Chun Du ◽  
...  

Ta3N5 is regarded as a promising candidate material with adequate visible light absorption and band structure for photoelectrochemical water splitting. However, the performance of Ta3N5 is severely limited by the...


2017 ◽  
Vol 198 ◽  
pp. 397-407 ◽  
Author(s):  
Tomoaki Takayama ◽  
Ko Sato ◽  
Takehiro Fujimura ◽  
Yuki Kojima ◽  
Akihide Iwase ◽  
...  

CuGaS2, (AgInS2)x–(ZnS)2−2x, Ag2ZnGeS4, Ni- or Pb-doped ZnS, (ZnS)0.9–(CuCl)0.1, and ZnGa0.5In1.5S4 showed activities for CO2 reduction to form CO and/or HCOOH in an aqueous solution containing K2SO3 and Na2S as electron donors under visible light irradiation. Among them, CuGaS2 and Ni-doped ZnS photocatalysts showed relatively high activities for CO and HCOOH formation, respectively. CuGaS2 was applied in a powdered Z-scheme system combining with reduced graphene oxide (RGO)-incorporated TiO2 as an O2-evolving photocatalyst. The powdered Z-scheme system produced CO from CO2 in addition to H2 and O2 due to water splitting. Oxygen evolution with an almost stoichiometric amount indicates that water was consumed as an electron donor in the Z-schematic CO2 reduction. Thus, we successfully demonstrated CO2 reduction of artificial photosynthesis using a simple Z-scheme system in which two kinds of photocatalyst powders (CuGaS2 and an RGO–TiO2 composite) were only dispersed in water under 1 atm of CO2.


2017 ◽  
Vol 19 (20) ◽  
pp. 4785-4791 ◽  
Author(s):  
Pengfei Sun ◽  
Daoshan Yang ◽  
Wei Wei ◽  
Min Jiang ◽  
Zuli Wang ◽  
...  

The direct use of sulfinic acids as an odorless sulfur source to construct hetroaryl sulfides through a photoredox process has been realized at room temperature for the first time.


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