In situ oxidation synthesis of Ag/AgCl core–shell nanowires and their photocatalytic properties

2009 ◽  
pp. 6551 ◽  
Author(s):  
Yingpu Bi ◽  
Jinhua Ye



2015 ◽  
Vol 4 (3) ◽  
pp. 1521-1530 ◽  
Author(s):  
Lingling Sun ◽  
Wei Wu ◽  
Qingyong Tian ◽  
Mei Lei ◽  
Jun Liu ◽  
...  


2016 ◽  
Vol 32 (3) ◽  
pp. 338-342 ◽  
Author(s):  
Jianmin Wang ◽  
Feng Cao ◽  
Ruiping Deng ◽  
Lijian Huang ◽  
Song Li ◽  
...  


2014 ◽  
Vol 40 (7) ◽  
pp. 9293-9301 ◽  
Author(s):  
Teng Zhou ◽  
Yuanguo Xu ◽  
Hui Xu ◽  
Hefei Wang ◽  
Zulin Da ◽  
...  


2005 ◽  
Vol 150 (3) ◽  
pp. 271-277 ◽  
Author(s):  
Yijun Yu ◽  
Bo Che ◽  
Zhihua Si ◽  
Liang Li ◽  
Wei Chen ◽  
...  


2017 ◽  
Vol 110 (21) ◽  
pp. 213103
Author(s):  
Renjie Chen ◽  
Binh-Minh Nguyen ◽  
Wei Tang ◽  
Yang Liu ◽  
Jinkyoung Yoo ◽  
...  


Materials ◽  
2019 ◽  
Vol 12 (7) ◽  
pp. 1106 ◽  
Author(s):  
Yuan-Tse Kao ◽  
Shu-Meng Yang ◽  
Kuo-Chang Lu

In this study, an efficient method to synthesize CuO-CuS core-shell nanowires by two-step annealing process was reported. CuO nanowires were prepared on copper foil via thermal oxidation in a three-zone horizontal tube furnace. To obtain larger surface area for photocatalytic applications, we varied four processing parameters, finding that growth at 550 °C for 3 h with 16 °C/min of the ramping rate under air condition led to CuO nanowires of appropriate aspect ratio and number density. The second step, sulfurization process, was conducted to synthesize CuO-CuS core-shell nanowires by annealing with sulfur powder at 250 °C for 30 min under lower pressure. High-resolution transmission electron microscopy studies show that a 10 nm thick CuS shell formed and the growth mechanism of the nanowire heterostructure has been proposed. With BET, the surface area was measured to be 135.24 m2·g−1. The photocatalytic properties were evaluated by the degradation of methylene blue (MB) under visible light irradiation. As we compared CuO-CuS core-shell nanowires with CuO nanowires, the 4-hour degradation rate was enhanced from 67% to 89%. This could be attributed to more effective separation of photoinduced electron and hole pairs in the CuO-CuS heterostructure. The results demonstrated CuO-CuS core-shell nanowires as a promising photocatalyst for dye degradation in polluted water.



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