scholarly journals Facile synthesis of mesoporous titanium dioxide doped by Ag-coated graphene with enhanced visible-light photocatalytic performance for methylene blue degradation

RSC Advances ◽  
2017 ◽  
Vol 7 (41) ◽  
pp. 25314-25324 ◽  
Author(s):  
Lin Xiao ◽  
Li Youji ◽  
Chen Feitai ◽  
Xu Peng ◽  
Li Ming
Keyword(s):  
Methylene Blue ◽  
Titanium Dioxide ◽  
Visible Light ◽  
Photocatalytic Performance ◽  
Solvothermal Method ◽  
Sol Gel ◽  
Facile Synthesis ◽  
Methylene Blue Degradation ◽  
Visible Light Driven ◽  
Visible Light Photocatalytic

A highly efficient and elaborately structured visible-light-driven catalyst composed of mesoporous TiO2 (MT) doped with Ag+-coated graphene (MT-Ag/GR) has been successfully fabricated by a sol–gel and solvothermal method.

Hydrothermal formation of N/Ti3+ codoped multiphasic (brookite–anatase–rutile) TiO2 heterojunctions with enhanced visible light driven photocatalytic performance

2017 ◽  
Vol 46 (45) ◽  
pp. 15727-15735 ◽  
Author(s):  
Mingxuan Sun ◽  
Yuanyuan Kong ◽  
Yalin Fang ◽  
Swati Sood ◽  
Yuan Yao ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Performance ◽  
Rutile Tio2 ◽  
Visible Light Photocatalytic Activity ◽  
Visible Light Driven ◽  
Visible Light Photocatalytic

Multiphasic TiO2 heterojunctions codoped with N and Ti3+ were fabricated and their enhanced visible light photocatalytic activity for the degradation of methylene blue was demonstrated.

Adsorption and visible-light photocatalytic performance of a graphene derivative for methylene blue degradation

2020 ◽  
Vol 14 ◽  
pp. 100373
Author(s):  
Willian H. Ferreira ◽  
Leonardo G.A. Silva ◽  
Barbara C.S. Pereira ◽  
Rodrigo F. Gouvêa ◽  
Cristina T. Andrade
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Photocatalytic Performance ◽  
Methylene Blue Degradation ◽  
Visible Light Photocatalytic

scholarly journals Synthesis of TiO2/g-C3N4 material for visble light driven photocatalytic degradation of methylene blue

2020 ◽  
Vol 9 (3) ◽  
pp. 21-26
Author(s):  
Hoa Dang Thi Ngoc ◽  
Tu Nguyen Thi Thanh
Keyword(s):  
Methylene Blue ◽  
Titanium Dioxide ◽  
Visible Light ◽  
Diffuse Reflectance Spectroscopy ◽  
Pure Tio2 ◽  
X Ray Diffraction ◽  
Methylene Blue Degradation ◽  
Light Region ◽  
Visible Light Driven ◽  
Kinetics Of

In this study, an efficient strategy for the synthesis of solvent titanium dioxide and titanium dioxide/graphitic carbon nitride (TiO2/g-C3N4) heterostructure photocatalyst was applied to fabricate a kind of visible-light-driven photocatalyst. The obtained samples were  characterised  by  means of  X-ray diffraction, infrared spectroscopy, ultraviolet–visible spectroscopy, ultraviolet-visible diffuse reflectance spectroscopy and photoluminescence. The heterostructure shows higher absorption edge towards harvesting more solar energy compared with pure TiO2 and pure g-C3N4 respectively. The  photocatalytic  behaviour  under  visible light  and  kinetics of  the TiO2/g-C3N4 catalyst via methylene blue degradation were addressed. The results showed that the introduction of solvent titanium dioxide  into g-C3N4 enhanced  the  photocatalytic activity in  the  visible  light region.  TiO2/g-C3N4 is  potential  visible  light  driven photocatalyst  for  the  organic substances degradation in aqueous solutions.

Synthesis of Bi2MoO6/BiOI Composites for Visible Light Driven Photocatalytic Degradation of Methylene Blue

2021 ◽  
Vol 13 (4) ◽  
pp. 545-549
Author(s):  
You Zhang ◽  
Ning Xie ◽  
Lu Zhang ◽  
Fenghuang Wu ◽  
Zifei Xie ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Photocatalytic Performance ◽  
Solvothermal Method ◽  
Photocatalytic Efficiency ◽  
Photogenerated Electrons ◽  
Visible Light Driven ◽  
Photocatalytic Performances

Bi2MoO6/BiOI composites were synthesized by solvothermal method and photocatalytic performances were evaluated by degrading methylene blue (MB). Experiment results show that Bi2MoO6/0.5BiOI has the best photocatalytic efficiency for eliminating 92% MB in 2 h under the excitation of visible light. Such superior photocatalytic performance is due to the significantly enhanced ability to absorb visible light and separated efficiency of photogenerated electrons and holes.

Visible-Light Driven FeS2 Nanosized Photocatalysts Prepared by Solvothermal Method

2012 ◽  
Vol 486 ◽  
pp. 55-59 ◽  
Author(s):  
He Sun ◽  
Pei Song Tang
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Solvothermal Method ◽  
Raw Materials ◽  
Band Gap Energy ◽  
Methylene Blue Solution ◽  
Gap Energy ◽  
Visible Light Driven ◽  
Blue Solution ◽  
Visible Light Photocatalytic

The FeS2 was synthesized using S powder, FeCl24H2O and PVP as main raw materials by solvothermal method. The FeS2 product was characterized by XRD, SEM, DRS and TG-DTA. The results show that FeS2 is the cube structure, particle size about 90 nm, band gap energy Eg=1.9 eV. Consequently, FeS2 nanoparticles show high visible-light photocatalytic activity for decomposition of methylene blue, which degradation rate of 10mg/L methylene blue solution can reach to 95% for 90 min under visible-light irradiation.

Photodegradation of Methylene Blue over Cr Doped TiO2 and Cr Doped TiO2 Supported TUD-1 Photocatalysts

2015 ◽  
Vol 1109 ◽  
pp. 424-428 ◽  
Author(s):  
Yee Khai Ooi ◽  
Leny Yuliati ◽  
Siew Ling Lee
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Performance ◽  
Sol Gel ◽  
Xrd Analysis ◽  
Wet Impregnation ◽  
Visible Light Driven ◽  
Synthesized Materials ◽  
Highly Porous

A series of visible light driven photocatalysts of Cr-doped TiO2 and Cr-doped TiO2 supported on TUD-1 have been successfully synthesized via surfactant-free sol-gel method followed by wet impregnation procedure. XRD analysis revealed that both anatase and rutile phases existed in Cr-doped TiO2 samples. After loading onto TUD-1, both Ti and Cr were incorporated in the highly porous siliceous matrix. As observed, more tetrahedrally coordinated Ti species was formed in Cr-doped TiO2 after supporting onto TUD-1. The photocatalytic performance of the synthesized materials was tested in the photodegradation of Methylene Blue under visible light irradiation. Results showed that 2.5 mol% Cr dopant gave the highest photocatytic activity to TiO2 in dye photodegradation. Besides, all the 2.5Cr-TiO2 supported on TUD-1 materials had higher photocatalytic activity than that of 2.5Cr-TiO2. Among the materials prepared, 2.5Cr-TiO2/30TUD-1 appeared as the most superior photocatalyst which gave the highest dye photodegradation of 75%.

Facile and sustainable synthesis of carbon-doped ZnO nanostructures towards the superior visible light photocatalytic performance

2017 ◽  
Vol 41 (17) ◽  
pp. 9314-9320 ◽  
Author(s):  
Sajid Ali Ansari ◽  
S. G. Ansari ◽  
H. Foaud ◽  
Moo Hwan Cho
Keyword(s):  
Visible Light ◽  
Photocatalytic Performance ◽  
Zno Nanostructures ◽  
Photoelectrochemical Performance ◽  
Carbon Doped ◽  
Visible Light Driven ◽  
Doped Zno ◽  
Visible Light Photocatalytic

Design of carbon doped ZnO nanostructures towards enhanced visible light driven photocatalytic and photoelectrochemical performance.

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