Design of macroporous TiO2 thin film photocatalysts with enhanced photofunctional properties

2011 ◽  
Vol 4 (4) ◽  
pp. 1411 ◽  
Author(s):  
Takashi Kamegawa ◽  
Norihiko Suzuki ◽  
Hiromi Yamashita
Keyword(s):  
Thin Film ◽  
Tio2 Thin Film

Pengaruh Pendopingan Karbon Terhadap Struktur Kristal dan Morfologi TIO2

2019 ◽  
Vol 2 (2) ◽  
Author(s):  
Frastica Deswardani ◽  
Helga Dwi Fahyuan ◽  
Rimawanto Gultom ◽  
Eif Sparzinanda
Keyword(s):  
Thin Film ◽  
Crystal Structure ◽  
Grain Size ◽  
Tio2 Thin Film ◽  
Crystal Size ◽  
Diffraction Peak ◽  
Carbon Doping ◽  
Tio2 Anatase ◽  
Spray Method ◽  
Carbon Analysis

Telah dilakukan penelitian mengenai pengaruh konsentrasi doping karbon pada lapisan tipis TiO2 yang ditumbuhkan dengan metode spray terhadap struktur kristal dan morfologi TiO2. Hasil karakterisasi SEM menunjukkan bahwa penambahan doping karbon dapat meningkatkan ukuran butir. Lapisan TiO2 doping karbon 8% diperoleh ukuran butir terbesar adalah 1.35 μm, sedangkan ukuran tekecilnya adalah 0.45 μm. Sementara itu, untuk lapisan tipis TiO2 didoping karbon 15% memiliki ukuran butir terbesar yaitu 1.76 μm dan terkecil 0.9 μm. Hasil XRD menunjukkan seluruh puncak difraksi lapisan tipis TiO2 dengan doping karbon 8% dan 15% merupakan TiO2 anatase. Ukuran kristal lapisan TiO2 didoping karbon 8% diperoleh sebesar 638,08 Å dan untuk pendopingan 15% karbon ukuran kristal lapisan tipis TiO2 adalah 638,09 Å, hal ini menunjukkan ukuran kristal kedua sampel tidak mengalami perubahan yang signifikan.   TiO2 thin film with carbon doping has been successfully grown by spray method. The research on the effect of carbon doping on crystal structure and morfology of TiO2 has been prepared by varying carbon concentration (8% and 15% carbon). Analysis of SEM showed that the addition of carbon may increase the grain size. Thin film of TiO2 doped carbon 8% has the largest grain size 1.35 μm, while the smallest grain size is 0.45 μm. Meanwhile, for thin film TiO2 doped carbon 15% has the largest grain size 1.76 μm and smallest 0.9 μm. The XRD results showed the entire diffraction peak of thin film TiO2 doped carbon 8% and 15% were TiO2 anatase. The crystal size of thin film TiO2 doped carbon 8% was obtained at 638.08 Å and for thin film TiO2 doped carbon 15% the crystalline size of TiO2 thin film was 638.09 Å, this shows that the crystal size of both samples did not change significantly.    

Detoxification of Aflatoxin B1 in Peanut Oil by Iodine Doped Supported TiO2 Thin Film Under Ultraviolet Light Irradiation

2018 ◽  
Vol 15 (2) ◽  
pp. 188-196 ◽  
Author(s):  
Chengpeng Xu ◽  
Shengying Ye ◽  
Xiaolei Cui ◽  
Quan Zhang ◽  
Yan Liang
Keyword(s):  
Thin Film ◽  
Photocatalytic Degradation ◽  
Aflatoxin B1 ◽  
Tio2 Thin Film ◽  
Sol Gel ◽  
Glass Tube ◽  
Iodine Concentration ◽  
Peanut Oil ◽  
Pseudo First Order Reaction ◽  
Supported Tio2

Background: Improper storage and raw materials make peanut oil susceptible to Aflatoxin B1 (AFB1). The semiconductor TiO2 photocatalysis technology is an effective technology which is widely used in sewage treatment, environmental protection and so on. Moreover, the photocatalytic efficiency can be improved by doping I. Method: The experiment is divided into two parts. In the first part, supported TiO2 thin film (STF) was prepared on the quartz glass tube (QGT) by the sol-gel and calcination method and the supported iodine doped supported TiO2 thin film (I-STF) was synthesized using potassium iodate solution. In the second part, the photocatalytic degradation of AFB1 was performed in a self-made photocatalytic reactor. The AFB1 was detected by ELISA kit. Results: The photocatalytic degradation of AFB1 has been proven to follow pseudo first-order reaction kinetics well (R2 > 0.95). The maximum degradation rate of 81.96%, which was reached at the optimum iodine concentration of 0.1mol/L, was 11.38% higher than that with undoped STF. The doping of iodine reduces the band-gap of TiO2, thereby increasing the photocatalytic response range. The proportion of Ti4+ in I-STF has decreased, which means that Ti4+ are replaced by I. The I-STF prepared at iodine concentration of 0.1mol/L has good photocatalytic properties.

Mo-doped, Cr-Doped, and Mo–Cr codoped TiO2 thin-film photocatalysts by comparative sol-gel spin coating and ion implantation

2021 ◽  
Vol 46 (24) ◽  
pp. 12961-12980
Author(s):  
Amanda Chen ◽  
Wen-Fan Chen ◽  
Tina Majidi ◽  
Bernadette Pudadera ◽  
Armand Atanacio ◽  
...  
Keyword(s):  
Thin Film ◽  
Ion Implantation ◽  
Spin Coating ◽  
Tio2 Thin Film ◽  
Sol Gel ◽  
Codoped Tio2

Plasmonic and non-plasmonic contributions on photocatalytic activity of Au-TiO2 thin film under mixed UV–visible light

2020 ◽  
Vol 389 ◽  
pp. 125613 ◽  
Author(s):  
Salih Veziroglu ◽  
Marie Ullrich ◽  
Majid Hussain ◽  
Jonas Drewes ◽  
Josiah Shondo ◽  
...  
Keyword(s):  
Thin Film ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Tio2 Thin Film ◽  
Uv Visible

Facile synthesis of mesoporous TiO2 film templated by block copolymer for photocatalytic applications

2021 ◽  
Author(s):  
Olufemi Olatidoye ◽  
Daria Thomas ◽  
Bishnu Bastakoti
Keyword(s):  
Thin Film ◽  
Block Copolymer ◽  
Ethylene Oxide ◽  
Tio2 Thin Film ◽  
Polymeric Micelles ◽  
Polymeric Micelle ◽  
Mesoporous Tio2 ◽  
Facile Synthesis ◽  
Vinyl Pyridine ◽  
Photocatalytic Applications

A facile synthesis of a mesoporous TiO2 thin film is reported using poly(styrene-2-vinyl pyridine-ethylene oxide) polymeric micelle as a synthetic template. As the Ti precursor strongly binds with polymeric micelles...

Photocatalytic water splitting using Pt-loaded visible light-responsive TiO2 thin film photocatalysts

2007 ◽  
Vol 120 (2) ◽  
pp. 133-138 ◽  
Author(s):  
Masaaki Kitano ◽  
Masato Takeuchi ◽  
Masaya Matsuoka ◽  
John M. Thomas ◽  
Masakazu Anpo
Keyword(s):  
Thin Film ◽  
Visible Light ◽  
Water Splitting ◽  
Tio2 Thin Film ◽  
Photocatalytic Water Splitting

scholarly journals UV-assisted room-temperature chemiresistive NO2 sensor based on TiO2 thin film

2015 ◽  
Vol 653 ◽  
pp. 255-259 ◽  
Author(s):  
Ting Xie ◽  
Nichole Sullivan ◽  
Kristen Steffens ◽  
Baomei Wen ◽  
Guannan Liu ◽  
...  
Keyword(s):  
Thin Film ◽  
Room Temperature ◽  
Tio2 Thin Film ◽  
No2 Sensor

Nanoporous TiO2 thin film based conductometric H2 sensor

2009 ◽  
Vol 518 (4) ◽  
pp. 1294-1298 ◽  
Author(s):  
A.Z. Sadek ◽  
J.G. Partridge ◽  
D.G. McCulloch ◽  
Y.X. Li ◽  
X.F. Yu ◽  
...  
Keyword(s):  
Thin Film ◽  
Tio2 Thin Film ◽  
H2 Sensor

An efficient TiO2 thin-film photocatalyst: photocatalytic properties in gas-phase acetaldehyde degradation

1996 ◽  
Vol 98 (1-2) ◽  
pp. 79-86 ◽  
Author(s):  
Iis Sopyan ◽  
Mitsuru Watanabe ◽  
Sadao Murasawa ◽  
Kazuhito Hashimoto ◽  
Akira Fujishima
Keyword(s):  
Thin Film ◽  
Gas Phase ◽  
Tio2 Thin Film ◽  
Photocatalytic Properties ◽  
Acetaldehyde Degradation ◽  
Tio2 Thin Film Photocatalyst

Comparison of heteroepitaxial YBa2Cu3O7−δ and TiO2 thin film growth

1997 ◽  
Vol 174 (1-4) ◽  
pp. 398-408 ◽  
Author(s):  
A. Roshko ◽  
F.J.B. Stork ◽  
D.A. Rudman ◽  
D.J. Aldrich ◽  
P.A.Morris Hotsenpiller
Keyword(s):  
Thin Film ◽  
Tio2 Thin Film ◽  
Film Growth ◽  
Thin Film Growth
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