Design of visible-light-response core–shell Fe2O3/CuBi2O4 heterojunctions with enhanced photocatalytic activity towards the degradation of tetracycline: Z-scheme photocatalytic mechanism insight

2018 ◽  
Vol 5 (12) ◽  
pp. 3148-3154 ◽  
Author(s):  
Ming-yang Li ◽  
Yu-bin Tang ◽  
Wei-long Shi ◽  
Fang-yan Chen ◽  
Yu Shi ◽  
...  

Core–shell Fe2O3/CuBi2O4 heterojunction photocatalysts with enhanced photocatalytic activity were fabricated through one-step hydrothermal method.

2009 ◽  
Vol 25 (08) ◽  
pp. 1555-1560
Author(s):  
LI Chang-Yu ◽  
◽  
◽  
LIU Shou-Xin ◽  
MA Yue

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Juan Zhou ◽  
Guohui Tian ◽  
Yajie Chen ◽  
Yunhan Shi ◽  
Chungui Tian ◽  
...  

Abstract Core/shell heterostructure composite has great potential applications in photocatalytic field because the introduction of core can remarkably improve charge transport and enhance the electron-hole separation. Herein, hierarchical Bi2S3/In2S3 core/shell structured microspheres were prepared via a simple one-pot hydrothermal process based on different growth rate of the two kinds of sulphides. The results showed that, the as-prepared hierarchical Bi2S3/In2S3 core/shell heterostructure exhibits significant visible light photocatalytic activity for degradation of 2, 4-dichlorophenol. The introduction of Bi2S3 core can not only improve charge transport and enhance the electron-hole separation, but also broaden the visible light response. The hierarchical porous folwer-like shell of In2S3 could increase the specific surface area and remarkably enhanced the chemical stability of Bi2S3 against oxidation.


2014 ◽  
Vol 92 (1) ◽  
pp. 71-75 ◽  
Author(s):  
Zongbao Li ◽  
Wang Xia ◽  
Lichao Jia

The electronic and optical properties of pure, C-doped, (C, F)-codoped, (C, N)-codoped, and (C, N, F)-codoped anatase TiO2 are investigated by using density functional theory (DFT). The results indicate that elemental doping creates a much more efficient and stable photocatalyst than pristine, which narrows the band gap of TiO2 and realizes its visible light response activity. With the incorporation of F into (C, N)-codoped TiO2, strong visible light absorption and photocatalytic activity are further increased. It also verifies the reliability of our calculations for good agreement with the experimental results in the optical absorption of (C, N)-codoped and (C, N, F)-codoped.


2013 ◽  
Vol 39 (4) ◽  
pp. 4651-4656 ◽  
Author(s):  
Yuxia Sun ◽  
Xiangyu Xiong ◽  
Zhao Xia ◽  
Hongri Liu ◽  
Yong Zhou ◽  
...  

2018 ◽  
Vol 217 ◽  
pp. 296-299 ◽  
Author(s):  
Zhifang Tong ◽  
Lingling He ◽  
Chunguang Ren ◽  
Zhonghua Wang ◽  
Zonglin Jiang

RSC Advances ◽  
2019 ◽  
Vol 9 (26) ◽  
pp. 15084-15091 ◽  
Author(s):  
Cheng He ◽  
Linkai Peng ◽  
Linzhe Lv ◽  
Yang Cao ◽  
Jinchun Tu ◽  
...  

Carbon dots (CDs) were grown in situ on secondary anodized TiO2 nanotube arrays (TiO2 NTAs) via a hydrothermal method.


2015 ◽  
Vol 39 (9) ◽  
pp. 7153-7163 ◽  
Author(s):  
Bilal Masood Pirzada ◽  
Owais Mehraj ◽  
Niyaz A. Mir ◽  
Mohammad Zain Khan ◽  
Suhail Sabir

The BiOBr/Cd(OH)2 heterojunction formation decreased the charge recombination phenomenally and imparted significant visible light response.


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