Superhydrophilic Graphene-Loaded TiO2 Thin Film for Self-Cleaning Applications

2012 ◽  
Vol 5 (1) ◽  
pp. 207-212 ◽  
Author(s):  
Srinivasan Anandan ◽  
Tata Narasinga Rao ◽  
Marappan Sathish ◽  
Dinesh Rangappa ◽  
Itaru Honma ◽  
...  
Keyword(s):  
Thin Film ◽  
Tio2 Thin Film ◽  
Self Cleaning

Coated Hydrophilic Thin Film on Glasses Using Freeze Drying-Assisted Sol-Gel Technique for Self-Cleaning Building Materials

2010 ◽  
Vol 150-151 ◽  
pp. 1484-1487 ◽  
Author(s):  
Tao Lin ◽  
Xiang Chao Zhang
Keyword(s):  
Thin Film ◽  
Tio2 Film ◽  
Freeze Drying ◽  
Building Materials ◽  
Tio2 Thin Film ◽  
Sol Gel ◽  
Contact Angles ◽  
Ito Glass ◽  
Gel Technique ◽  
Self Cleaning

Titanium dioxide thin film has been successfully synthesized deposited on ITO glass substrates by the sol–gel dip-coating method using freeze drying technique. The precursor and TiO2 film were characterized using XRD, AFM and UV-vis absorption spectra analysis technologies. The XRD result demonstrates that the TiO2 film is well crystallized and consists of anatase phase only with (101) plane. The morphology of the nanoparticles of TiO2 thin film is spherical shape with grain size of 30.1 nm in average diameter and the surface of the TiO2 film is smooth. There is a strong wide UV absorption band around 387 nm and the calculated band gap (Eg) value of the TiO2 thin film is about 3.18 eV. The water contact angles for the thin film was only about 12°. The freeze drying-assisted sol-gel technique offers a novel process route in treating hydrophilic glasses for self-cleaning building materials and would be widely application for building energy saving.

Self-cleaning property of graphene oxide/TiO2 thin film

2019 ◽  
Author(s):  
Azliza Azani ◽  
Dewi Suriyani Che Halin ◽  
Kamrosni Abdul Razak ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
Mohd Arif Anuar Mohd Salleh ◽  
...  
Keyword(s):  
Thin Film ◽  
Graphene Oxide ◽  
Tio2 Thin Film ◽  
Self Cleaning

scholarly journals Analysis of sol aging effects on self-cleaning properties of TiO2 thin film

2021 ◽  
Vol 8 (10) ◽  
pp. 105502
Author(s):  
V T Lukong ◽  
K O Ukoba ◽  
T C Jen
Keyword(s):  
Thin Film ◽  
Tio2 Thin Film ◽  
Aging Effects ◽  
Self Cleaning

scholarly journals Fabrication of Hydrophobic Indonesia Bamboo Modified by Octa Fluoro 1-Pentanol (OFP) Based on TiO2 Thin Film for Self-cleaning Application

2018 ◽  
Vol 7 (2) ◽  
pp. 148-158 ◽  
Author(s):  
Diana Vanda Wellia ◽  
◽  
Arifah Mustaqimah ◽  
Wulandari Wulandari ◽  
◽  
...  
Keyword(s):  
Thin Film ◽  
Tio2 Thin Film ◽  
Self Cleaning

scholarly journals Recent graphene oxide/TiO2 thin film based on self-cleaning application

2019 ◽  
Vol 572 ◽  
pp. 012079 ◽  
Author(s):  
A Azani ◽  
D S Che Halin ◽  
K A Razak ◽  
M M A B Abdullah ◽  
M A A M Salleh ◽  
...  
Keyword(s):  
Thin Film ◽  
Graphene Oxide ◽  
Tio2 Thin Film ◽  
Self Cleaning

Synthesis and Self-Cleaning Property of TiO2 Thin Film Doping with Fe3+, Al3+, Ce3+ Ions

2020 ◽  
Vol 20 (7) ◽  
pp. 4084-4091
Author(s):  
Chun Han ◽  
Lei Zhao ◽  
Manying Zhang ◽  
Lin Pan ◽  
Zhifeng Liu
Keyword(s):  
Thin Film ◽  
Contact Angle ◽  
Water Contact Angle ◽  
Tio2 Thin Film ◽  
Sol Gel ◽  
Molar Ratio ◽  
Water Contact ◽  
Cleaning Performance ◽  
Photogenerated Electrons ◽  
Self Cleaning

Enhancing the response to visible light and inhibiting recombination of photogenerated electrons and holes is a key point for strongly improved self-cleaning performances of TiO2 self-cleaning films. In this work, TiO2 thin film doping with three different ions (Fe3+, Al3+, Ce3+) on glass substrate respectively by sol–gel method to explore the effect of ions on self-cleaning performance of TiO2 thin films. All the prepared samples are characterized by XRD, SEM, UV-Vis and water contact angle tester. Moreover, the self-cleaning mechanism of doping TiO2 thin film is discussed. The water contact angle of TiO2 thin film doping with 9% Fe (molar ratio), 5% Ce and 5% Al are reach at 0°, respectively. In comparison with the water contact angle of pure TiO2 thin film (2.5°), TiO2 thin film doping with metal ions exhibit better self-cleaning property.

Self-cleaning glass coated with Fe3+-TiO2 thin film

2004 ◽  
Vol 11 (2) ◽  
pp. 124-127 ◽  
Author(s):  
An-xian Lu ◽  
Na Lin ◽  
Xue Li ◽  
Chang-you Tan
Keyword(s):  
Thin Film ◽  
Tio2 Thin Film ◽  
Self Cleaning

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.

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
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