Modulation and Improvement on Separation of Photoinduced Charge Carriers in CdS−Metal Nanoheterostructures

2009 ◽  
Vol 113 (40) ◽  
pp. 17342-17346 ◽  
Author(s):  
Wei-Yun Cheng ◽  
Wei-Ta Chen ◽  
Yung-Jung Hsu ◽  
Shih-Yuan Lu
1999 ◽  
Vol 59 (12) ◽  
pp. 8019-8025 ◽  
Author(s):  
V. Dyakonov ◽  
G. Zoriniants ◽  
M. Scharber ◽  
C. J. Brabec ◽  
R. A. J. Janssen ◽  
...  

2020 ◽  
Vol 11 ◽  
pp. 407-416 ◽  
Author(s):  
Changqiang Yu ◽  
Min Wen ◽  
Zhen Tong ◽  
Shuhua Li ◽  
Yanhong Yin ◽  
...  

Photocatalysis is considered to be a green and promising technology for transforming organic contaminants into nontoxic products. In this work, a CuO/tourmaline composite with zero-dimensional/two-dimensional (0D/2D) CuO architecture was successfully obtained via a facile hydrothermal process, and its photocatalytic activity was evaluated by the degradation of methylene blue (MB). Surface element valence state and molecular vibration characterization revealed that CuO chemically interacted with tourmaline via Si–O–Cu bonds. The specific surface area of the CuO/tourmaline composite (23.60 m2 g−1) was larger than that of the pristine CuO sample (3.41 m2 g−1). The CuO/tourmaline composite exhibited excellent photocatalytic activity for the degradation of MB, which was ascribed to the increase in the quantity of the adsorption-photoreactive sites and the efficient utilization of the photoinduced charge carriers. This study provides a facile strategy for the construction of 0D/2D CuO structures and the design of tourmaline-based functional composite photocatalysts for the treatment of organic contaminants in water.


2020 ◽  
Author(s):  
Changqiang Yu ◽  
Min Wen ◽  
Zhen Tong ◽  
Shuhua Li ◽  
Yanhong Yin ◽  
...  

    Photocatalysis is considered to be a green and promising technology for transforming organic contaminants into nontoxic products. In this work, the CuO/tourmaline composite with zero-dimensional/two-dimensional (0D/2D) CuO architecture was obtained via a facile hydrothermal process. CuO chemically interacted with tourmaline via Si-O-Cu bond. The specific surface area of the CuO/tourmaline composite (23.60 m2 g-1) was larger than that of pristine CuO (3.41 m2 g-1). Three predominant reactive species of superoxide radical (O2 •-), hydroxyl radical (•OH), and h+ were generated by the CuO/tourmaline composite aqueous suspension system under light irradiation. The CuO/tourmaline composite exhibited excellent photocatalytic capacity for the decomposition of organic pollutants, which was ascribed to the increase in the quantity of adsorption-photoreactive sites and the efficient utilization of photoinduced charge carriers benefited from tourmaline. This study offered a facile strategy for the construction of 0D/2D CuO structure and the design of tourmaline-based functional composite photocatalysts for the treatment of organic contaminants in waster.


2010 ◽  
Vol 97 (3) ◽  
pp. 033309 ◽  
Author(s):  
Yana Vaynzof ◽  
Dinesh Kabra ◽  
Lihong Zhao ◽  
Peter K. H. Ho ◽  
Andrew T.-S. Wee ◽  
...  

2007 ◽  
Vol 75 (19) ◽  
Author(s):  
Mattijs Koeberg ◽  
Euan Hendry ◽  
Juleon M. Schins ◽  
Hendrik A. van Laarhoven ◽  
Cees F. J. Flipse ◽  
...  

ACS Catalysis ◽  
2021 ◽  
pp. 12931-12939
Author(s):  
Qiuyan Shen ◽  
Tianyi Xu ◽  
Gui-lin Zhuang ◽  
Yuan Zhuang ◽  
Liming Sun ◽  
...  

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