scholarly journals Facile Solvothermal Synthesis of BiOCl/ZnO Heterostructures with Enhanced Photocatalytic Activity

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Yong-Fang Li ◽  
Ming Zhang ◽  
Dan-Lu Guo ◽  
Fei-Xia He ◽  
Ying-Zhu Li ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Ethylene Glycol ◽  
Uv Irradiation ◽  
Rhodamine B ◽  
Zno Nanoparticles ◽  
Solvothermal Synthesis ◽  
Solvothermal Method ◽  
Mixed Solvents ◽  
Photocatalytic Mechanism

Well-defined nanosheet-assembled (BiOCl)x(ZnO)1−xnanoflowers were synthesized by a solvothermal method. It was found that ZnO nanoparticles were anchored on the flower-like BiOCl nanostructures, as demonstrated by varying the initial compositions of the Bi precursor and the volume ratios of mixed solvents (ethylene glycol to water). The as-prepared (BiOCl)0.6(ZnO)0.4nanocomposites showed enhanced photocatalytic activity toward rhodamine B degradation under ultraviolet (UV) irradiation. And the photocatalytic mechanism was discussed in detail.

Solvothermal Synthesis and Photocatalysis of SnO2 Nanocrystal Microspheres

2011 ◽  
Vol 412 ◽  
pp. 40-43 ◽  
Author(s):  
Hui Liu ◽  
Xiao Nan Dong ◽  
Guang Jun Li ◽  
Xiao Feng Wang ◽  
Zhen Feng Zhu
Keyword(s):  
Photocatalytic Activity ◽  
Ethylene Glycol ◽  
Rhodamine B ◽  
Solvothermal Synthesis ◽  
Degradation Rate ◽  
Photocatalytic Property ◽  
Poly Ethylene Glycol ◽  
Ft Ir ◽  
Poly Ethylene ◽  
High Degradation Rate

Quasi-monodispersed SnO2nanocrystal microspheres were successfully fabricated by a solvothermal route with the assistance of poly (ethylene glycol) (PEG, Mn=6000) template. The as-prepared SnO2microspheres were well characterized by XRD, SEM, TEM, and FT-IR. The photocatalytic activity for Rh B on the SnO2microspheres was also investigated under UV irradiation. The experimental results show that the quasi-monodispersed SnO2microspheres with diameter about 1.3µm are self-assembled by large quantity of crystallites less than 10 nm. The SnO2microspheres have a good photocatalytic property, as evidenced by the result that over 95% of the Rh B decomposed over the SnO2nanocrystal microspheres within 180 min. The high degradation rate of rhodamine B (Rh B) on the as-synthesized SnO2nanocrystal microspheres can be attributed to the small size of crystals.

scholarly journals SOLVOTHERMAL SYNTHESIS OF BI2WO6 AND ITS PHOTOCATALYTIC ACTIVITY UNDER VISIBLE LIGHT IRRADIATION

2018 ◽  
Vol 54 (4B) ◽  
pp. 42
Author(s):  
Trinh Duy Nguyen
Keyword(s):  
Absorption Spectrum ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Solvothermal Synthesis ◽  
Solvothermal Method ◽  
Visible Region ◽  
High Photocatalytic Activity ◽  
Light Irradiation ◽  
Different Temperatures

Flower-like Bi2WO6 were successfully synthesized using the solvothermal method at different temperatures and characterized by XRD, FE-SEM, and DRS. We also investigated the photocatalytic activity of Bi2WO6 for the decomposition of rhodamine B under visible light irradiation. From XRD and SEM results, the reaction temperature has significant effects on the morphologies of the samples. From DRS results, Bi2WO6 samples displayed the absorption spectrum up to the visible region and then they showed the high photocatalytic activity under visible light irradiation, as a comparison with TiO2-P25.

Facile preparation of ZnO nanosheets and its photocatalytic activity in the degradation of rhodamine B dye under UV irradiation

2016 ◽  
Vol 12 (6) ◽  
pp. 784-788 ◽  
Author(s):  
Rizwan Khan ◽  
Sudarsan Raj ◽  
Jin Hyeon Yun ◽  
Yeon-Tae Yu ◽  
Joo In Lee ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Uv Irradiation ◽  
Rhodamine B ◽  
Zno Nanosheets ◽  
Facile Preparation ◽  
Rhodamine B Dye

Solvothermal Synthesis of WO3 Photocatalysts and their Enhanced Activity

2011 ◽  
Vol 485 ◽  
pp. 283-286
Author(s):  
Yuji Kondo ◽  
Shinobu Fujihara
Keyword(s):  
Titanium Dioxide ◽  
Photocatalytic Activity ◽  
Specific Surface ◽  
Tungsten Trioxide ◽  
Solvothermal Synthesis ◽  
Solvothermal Method ◽  
Spherical Particles ◽  
Hierarchical Architecture ◽  
Surface Areas ◽  
Specific Surface Areas

Tungsten trioxide (WO3) is known as a visible light responsive photocatalyst, but its photocatalytic activity is relatively low, as compared to that of anatase titanium dioxide (TiO2). To enhance the activity, high specific surface areas are necessary. In this study, WO3particles with a hierarchical architecture, which was assemblies of spherical particles 20 – 30 nm in diameter, were synthesized by the solvothermal method. The hierarchical WO3particles had high specific surface areas and their photocatalytic activity was found to be 2.5 times higher than that of the commercial WO3.

High Photocatalytic Activity of Oliver-Like BiVO4 for Rhodamine B Degradation under Visible Light Irradiation

2018 ◽  
Vol 876 ◽  
pp. 52-56 ◽  
Author(s):  
Huu Vinh Nguyen ◽  
Tran Van Thuan ◽  
Sy Trung Do ◽  
Duy Trinh Nguyen ◽  
Dai Viet Nguyen Vo ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Ethylene Glycol ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Rhodamine B ◽  
Mixed Solvent ◽  
Hydrothermal Process ◽  
Monomethyl Ether ◽  
High Specific Surface Area ◽  
Light Irradiation

We report the facial synthesis of BiVO4crystals with different morphologies by the solvothermal and hydrothermal process. The phase structure and morphology as-synthesized samples were characterized by XRD, FE-SEM, and UV-vis DRS spectroscopy. We also investigated the photocatalytic activity of BiVO4for the decomposition of rhodamine B (RhB) under visible light irradiation. The results showed that oliver-like BiVO4was obtained when using the mixed solvent of ethylene glycol and water while starflower-like BiVO4was obtained using the mixed solvent of ethylene glycol monomethyl ether and water. The hydrothermal evolution process the BiVO4product with a rod-like morphology. Oliver-like BiVO4with pure monoclinic scheelite phase and high specific surface area exhibits efficient photodegradation of RhB (k = 7.82x10-3min-1).

Solvothermal Synthesis of TiO2 Hollow Microsphere and Its Photocatalytic Properties

2011 ◽  
Vol 356-360 ◽  
pp. 345-348
Author(s):  
Jin Guo Wang ◽  
Jian Zhu ◽  
Xi Li ◽  
He Xing Li
Keyword(s):  
Photocatalytic Activity ◽  
Solvothermal Synthesis ◽  
Solvothermal Method ◽  
Uv Light ◽  
Hollow Structure ◽  
Hollow Microsphere ◽  
Hollow Microspheres ◽  
Photocatalytic Properties ◽  
Multiple Reflections ◽  
Facile Solvothermal Method

TiO2hollow microspheres were synthesized by a facile solvothermal method. The prepared samples were characterized by the XRD, SEM, TEM, BET and UV-vis. The results showed that the TiO2hollow microspheres offered an enhanced photocatalytic activity due to the multiple reflections of the UV light within the inner hollow structure.

Photocatalytic Activity of Bi 2 O 3 Enhanced by the Addition of Ce 3+ /Ce 4+ Synthesized by Ethylene Glycol‐assisted Solvothermal Method

2020 ◽  
Vol 5 (19) ◽  
pp. 5799-5808
Author(s):  
Ting Li ◽  
Shanyu Quan ◽  
Xuefeng Shi ◽  
Cong Liu ◽  
Linmei Yang
Keyword(s):  
Photocatalytic Activity ◽  
Ethylene Glycol ◽  
Solvothermal Method
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