Formation of New Structures and Their Synergistic Effects in Boron and Nitrogen Codoped TiO2 for Enhancement of Photocatalytic Performance

2011 ◽  
Vol 115 (16) ◽  
pp. 7858-7865 ◽  
Author(s):  
Ming-Yang Xing ◽  
Wei-Kun Li ◽  
Yong-Mei Wu ◽  
Jin-Long Zhang ◽  
Xue-Qing Gong
2014 ◽  
Vol 2 (33) ◽  
pp. 13565-13570 ◽  
Author(s):  
Yingying Fan ◽  
Dongxue Han ◽  
Bin Cai ◽  
Weiguang Ma ◽  
Mohsin Javed ◽  
...  

An improved photocatalytic performance of Ce/S–TiO2/SGE based on the synergistic effects of Ce- and S-codoping and the composite action between TiO2 NPs and SGE.


2017 ◽  
Vol 121 (12) ◽  
pp. 6662-6673 ◽  
Author(s):  
Ganeshraja Ayyakannu Sundaram ◽  
Minghui Yang ◽  
Kiyoshi Nomura ◽  
Suresh Maniarasu ◽  
Ganapathy Veerappan ◽  
...  

RSC Advances ◽  
2017 ◽  
Vol 7 (25) ◽  
pp. 15513-15520 ◽  
Author(s):  
Minggui Wang ◽  
Jie Han ◽  
Yimin Hu ◽  
Rong Guo

Mesoporous C, N-codoped TiO2 (C/N-TiO2) hybrid shells incorporated with graphite carbon were synthesized. Catalytic results indicated that C and N codoping could remarkably improve the photocatalytic performance of TiO2.


2009 ◽  
Vol 79-82 ◽  
pp. 2127-2130 ◽  
Author(s):  
Song Tao Gu ◽  
Xin Wang ◽  
Qiang Liu ◽  
Hao Quan Liu ◽  
Gui Jun Jiang ◽  
...  

A visible-light-active nitrogen and gadolinium codoped TiO2 catalyst was synthesized by the sol-gel route. For comparison, Gd-doped sample, N-doped sample, and pure titania were prepared through the same method, without adding the corresponding dopants. The as-prepared photocatalysts were characterized by X-ray diffraction (XRD) and Uv-vis spectra. The results showed that the codoped photocatalyst exhibited a smaller size than the undoped titania. The transformation from anatase to rutile was suppressed by doping with N and Gd atoms. Furthermore, the absorbance spectra of N, Gd-codoped TiO2 exhibited a significant red shift to the visible region. The photocatalytic activity of N, Gd-codoped TiO2 was evaluated by photodegradation of methyl orange under visible light irradiation. This codoped sample exhibited enhanced photocatalytic activity compared to N-doped TiO2, Gd-doped TiO2, and pure TiO2. The improvement of the photocatalytic activity was ascribed to the synergistic effects of the N and Gd co-doping.


Catalysts ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1284
Author(s):  
Yin Peng ◽  
Haozhi Qian ◽  
Nannan Zhao ◽  
Yuan Li

A novel 1D/2D Bi2O2CO3–BiOI heterojunction photocatalyst with high-quality interfaces was synthesized through a hydrothermal method by using Bi2O2CO3 nanorods and KI as raw materials. Two-dimensional (2D) BiOI nanosheets uniformly and vertically grow on the 1D porous Bi2O2CO3 rods. Bi2O2CO3–BiOI heterojunctions exhibit better photocatalytic activity than pure Bi2O2CO3 nanorods and BiOI nanosheets. Cr(VI) (30 mg/L), MO (20 mg/L) and BPA (20 mg/L) can be completely degraded in 8–15 min. The superior photocatalytic performance of 1D/2D Bi2O2CO3–BiOI heterojunction is ascribed to the synergistic effects: (a) vertical 2D on 1D multidimensional structure; (b) the formation of the Bi2O2CO3–BiOI p–n heterojunction; (c) high-quality interfaces between Bi2O2CO3 and BiOI.


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