N, B, Si-tridoped mesoporous TiO2 with high surface area and excellent visible-light photocatalytic activity

2010 ◽  
Vol 36 (4) ◽  
pp. 349-359 ◽  
Author(s):  
Chenxu He ◽  
Baozhu Tian ◽  
Jinlong Zhang
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Mesoporous Tio2 ◽  
Visible Light Photocatalytic Activity ◽  
Visible Light Photocatalytic

Sol-Gel Synthesis of N-Doped Mesoporous TiO2 with High Crystallinity and High Visible Light Photocatalytic Activity

2012 ◽  
Vol 217-219 ◽  
pp. 857-861 ◽  
Author(s):  
Xiao Ling Guo ◽  
Xiang Dong Wang ◽  
Feng He
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Surface Area ◽  
Anatase Phase ◽  
High Surface ◽  
Sol Gel ◽  
High Surface Area ◽  
Weight Ratio ◽  
Mesoporous Tio2 ◽  
Vis Spectroscopy

N-doped mesoporous TiO2 with high surface area and crystallinity were synthesized by sol-gel method using polyacrylamide (PAM) and polyethylene glycol (PEG) as the complex templates. The resulting materials were characterized by XRD, TEM, N2 adsorption-desorption, and UV-Vis spectroscopy. It is found that when the weight ratio of PAM and PEG is 1:4, the sample, prepared at 600 °C in nitrogen and at 500 °C in air, is anatase phase and has high surface area and crystallinity. The particle size and pore size of the sample are about 10 nm and 17 nm respectively. Compared with that of the undoped mesoporous TiO2, the absorption band edges of N-doped samples exhibit an evident red-shift. The results of the photocatalytic degradation of methyl orange (MO) show that N-doped sample appears to have higher photocatalytic activity under visible light than undoped sample.

scholarly journals The synthesis of a BiOClxBr1−x nanostructure photocatalyst with high surface area for the enhanced visible-light photocatalytic reduction of Cr(vi)

RSC Advances ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 4763-4771 ◽  
Author(s):  
Muhammad Bilal Hussain ◽  
Malik Saddam Khan ◽  
Herman Maloko Loussala ◽  
Muhammad Sohail Bashir
Keyword(s):  
Visible Light ◽  
Surface Area ◽  
Room Temperature ◽  
High Surface ◽  
High Surface Area ◽  
Photocatalytic Reduction ◽  
Synthetic Process ◽  
Visible Light Photocatalytic

Cr(vi) reduction is performed by BiOCl0.8Br0.2 composite produced via a facile in situ synthetic process at room temperature while making use of PVP (Mw = 10 000).

scholarly journals Synthesis of a high-surface area V2O5/TiO2–SiO2 catalyst and its application in the visible light photocatalytic degradation of methylene blue

RSC Advances ◽  
2019 ◽  
Vol 9 (42) ◽  
pp. 24368-24376 ◽  
Author(s):  
Ajay Kumar Adepu ◽  
Srinath Goskula ◽  
Suman Chirra ◽  
Suresh Siliveri ◽  
Sripal Reddy Gujjula ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Bet Surface Area ◽  
Titanium Silicate ◽  
Ft Ir ◽  
Synthesized Materials ◽  
Visible Light Photocatalytic

In the present study, we synthesized several high-surface area V2O5/TiO2–SiO2 catalysts (vanado titanium silicate, VTS). The synthesized materials are characterized by PXRD, FE-SEM/EDAX, TEM, BET-surface area, FT-IR, UV-Vis, XPS, fluorescence and photocatalytic studies.

Effect of Co-Doped La3+/Halogen on Visible Light Photocatalytic Activity of TiO2

2011 ◽  
Vol 239-242 ◽  
pp. 1923-1928
Author(s):  
Qian Lin Chen ◽  
Yuan Wang ◽  
Chun Yan Zhong ◽  
Yu Guo
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Visible Light ◽  
Surface Area ◽  
Visible Light Photocatalytic Activity ◽  
Co Doping ◽  
Hydrolysis Method ◽  
Degradation Ratio ◽  
Co Doped ◽  
Visible Light Photocatalytic

La3+/halogen (F-, Cl-and Br-) co-doped TiO2was synthesized by alkoxide hydrolysis method. The prepared La3+/halogen TiO2photocatalysts with anatase phases and rutile phases were characterized with XRD, EDS, TEM and surface area analytic technology. Methyl orange was used as model pollutants to evaluate its visible light photocatalytic activity. The results showed that the co-doping of La3+and halogen ions improved the surface area of TiO2. Compared with 450°C and 650°C, La3+/Cl-and La3+/Br-co-doped TiO2calcined at 550°C exhibited much higher photocatalytic activity. The optimal doping ratio of La3+/F-, La3+/Cl-and La3+/Br-was 0.4, 0.6, and 0.5 ((wt%)/(wt%)), respectively. Moreover, the degradation ratio of methyl orange on La3+/halogen co-doped TiO2with the optimal ratio were all higher than the maximum degradation ratio on La3+, F-, Cl-and Br-doped TiO2prepared by the same method.

scholarly journals Synergistic Effects of B/N Doping on the Visible‐Light Photocatalytic Activity of Mesoporous TiO2

2008 ◽  
Vol 47 (29) ◽  
pp. 5277-5277 ◽  
Author(s):  
Gang Liu ◽  
Yanning Zhao ◽  
Chenghua Sun ◽  
Feng Li ◽  
Gao Qing Lu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Synergistic Effects ◽  
Mesoporous Tio2 ◽  
Visible Light Photocatalytic Activity ◽  
N Doping ◽  
Visible Light Photocatalytic

Novel core–shell structured BiVO4 hollow spheres with an ultra-high surface area as visible-light-driven catalyst

CrystEngComm ◽  
2014 ◽  
Vol 16 (27) ◽  
pp. 6059-6065 ◽  
Author(s):  
Yang Lu ◽  
Yong-Song Luo ◽  
Hong-Mei Xiao ◽  
Shao-Yun Fu
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Surface Area ◽  
High Surface ◽  
Hollow Spheres ◽  
High Surface Area ◽  
Core Shell ◽  
Hydrothermal Route ◽  
Excellent Photocatalytic Activity ◽  
Visible Light Driven

Novel core–shell-structured BiVO4 hollow spheres synthesized via a simple hydrothermal route exhibit an excellent photocatalytic activity.

Fabrication of Fe2TiO5/TiO2 nanoheterostructures with enhanced visible-light photocatalytic activity

RSC Advances ◽  
2016 ◽  
Vol 6 (51) ◽  
pp. 45343-45348 ◽  
Author(s):  
Zirui Lou ◽  
Yaguang Li ◽  
Hui Song ◽  
Zhizhen Ye ◽  
Liping Zhu
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Uniform Distribution ◽  
Surface Area ◽  
Shell Thickness ◽  
Hollow Nanospheres ◽  
Visible Light Photocatalytic Activity ◽  
Photocatalytic Activities ◽  
Visible Light Photocatalytic

In this work, we have fabricated Fe2TiO5/TiO2 heterostructures hollow nanospheres with 10 nm scale shell thickness, 220 m2 g−1 surface area and uniform distribution. Their visible photocatalytic activities for degrading pollutant are greatly enhanced.

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