Facile hydrothermal synthesis and improved photocatalytic activities of Zn2+ doped Bi2MoO6 nanosheets

RSC Advances ◽  
2016 ◽  
Vol 6 (38) ◽  
pp. 32349-32357 ◽  
Author(s):  
Xiang-Biao Zhang ◽  
Lei Zhang ◽  
Jin-Song Hu ◽  
Xin-Hua Huang

A novel sheet-like Zn2+ doped Bi2MoO6 photocatalyst with excellent UV-visible-light induced photocatalytic ability was successfully fabricated through a facile hydrothermal synthesis strategy.

2014 ◽  
Vol 608 ◽  
pp. 147-152
Author(s):  
Ryusuke Akita ◽  
Qiang Dong ◽  
Shu Yin ◽  
Tsugio Sato

Cr and La-codoped SrTiO3nanoparticles were successfully prepared by a microwave-assisted hydrothermal synthesis. The products were characterized by XRD, TEM, BET specific surface area, and UV-Vis absorption spectra. The photocatalytic activity was determined by deNOxability under irradiation of a 450 W high-pressure mercury lamp. The products could absorb the visible light and showed high photocatalytic ability for the decomposition of NOxgas. All samples showed the photocatalytic activities superior to that of commercial titania (Degussa P25) in both UV and visible light regions.


2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Honghui Teng ◽  
Shukun Xu ◽  
Dandan Sun ◽  
Ying Zhang

Fe-doped TiO2nanotubes (Fe-TNTs) have been prepared by ultrasonic-assisted hydrothermal method. The structure and composition of the as-prepared TiO2nanotubes were characterized by transmission electron microscopy, X-ray diffraction, and UV-Visible absorption spectroscopy. Their photocatalytic activities were evaluated by the degradation of MO under visible light. The UV-visible absorption spectra of the Fe-TNT showed a red shift and an enhancement of the absorption in the visible region compared to the pure TNT. The Fe-TNTs were provided with good photocatalytic activities and photostability and under visible light irradiation, and the optimum molar ratio of Ti : Fe was found to be 100 : 1 in our experiments.


RSC Advances ◽  
2016 ◽  
Vol 6 (44) ◽  
pp. 38252-38262 ◽  
Author(s):  
Vidhu Malik ◽  
Meenakshi Pokhriyal ◽  
S. Uma

Uniform rectangular plates of the mineral, beyerite (CaBi2O2(CO3)2) belonging to the “sillen” family have been successfully synthesized and is used in fabricating the composite photocatalyst BiOI/CaBi2O2(CO3)2.


2015 ◽  
Vol 7 (3) ◽  
pp. 479-488 ◽  
Author(s):  
Xiaowei Wang ◽  
Wenxia Liu ◽  
Xingqi Wang ◽  
Dehai Yu ◽  
Hong Liu

2014 ◽  
Vol 955-959 ◽  
pp. 2267-2275 ◽  
Author(s):  
Rong Liu ◽  
Shi Duo Zhao ◽  
Xue Lin

Ba0.6Mg0.4TiO3 (BMT) particles with different morphologies were synthesized through hydrothermal method and their optical and photocatalytic properties were investigated. Their crystal structure and microstructures were characterized using X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). XRD patterns demonstrate that the as-prepared samples are tetragonal structure. FESEM shows that BMT crystals can be fabricated in different morphologies by simply manipulating the reaction parameters of hydrothermal process. The UV-visible diffuse reflectance spectra (UV-vis DRS) reveal that the band gaps of BMT photocatalysts are about 2.37 - 2.51 eV. The as-prepared BMT photocatalysts exhibite higher photocatalytic activities in the degradation of methyl orange (MO) under visible light irradiation (λ > 420 nm) compared with traditional N-doped TiO2 (N-TiO2) and pure BaTiO3 (BTO). The high photocatalytic performance of BMT photocatalysts could be attributed to the recombination restraint of the e-/h+ pairs resulting from doping of Mg2+ ions. The influence of morphologies upon the photocatalytic properties of BMT was studied. Furthermore, BMT nanowires reveal the highest photocatalytic activity. Up to 94.0% MO is decolorized after visible light irradiation for 360 min.


2020 ◽  
Vol 44 (5) ◽  
pp. 1888-1904 ◽  
Author(s):  
T. N. Ravishankar ◽  
M. de O. Vaz ◽  
S. R. Teixeira

Effective and low-cost CuO/TiO2 nanocomposites were prepared at room temperature by a surfactant-assisted sol–gel method for photocatalytic activities under UV-visible and visible light irradiations.


Sign in / Sign up

Export Citation Format

Share Document