scholarly journals Advancement of Sol-Gel–Prepared TiO2 Photocatalyst

2017 ◽  
Author(s):  
Robabeh Bashiri ◽  
Norani Muti Mohamed ◽  
Chong Fai Kait
Keyword(s):  
Sol Gel ◽  
Tio2 Photocatalyst

The sol-gel synthesis and photocatalytic activity of Gd-SiO2-TiO2 photocatalyst

2019 ◽  
Vol 733 ◽  
pp. 136676 ◽  
Author(s):  
Hongwei Feng ◽  
Hui Xu ◽  
Hongtu Feng ◽  
Ying Gao ◽  
Xinyuan Jin
Keyword(s):  
Photocatalytic Activity ◽  
Sol Gel ◽  
Tio2 Photocatalyst ◽  
Sol Gel Synthesis

Degradation of Pharmaceutical Pollutants under UV Light using TiO2 Nanomaterial Synthesized through Reverse Micelle Nanodomains

2021 ◽  
pp. 87-110
Keyword(s):  
Wastewater Treatment ◽  
Reverse Micelle ◽  
Uv Light ◽  
Sol Gel ◽  
Bet Surface Area ◽  
Tio2 Photocatalyst ◽  
Gel Method ◽  
Sol Gel Method ◽  
Treatment Techniques ◽  
Pharmaceutical Pollutants

Controlling water pollution are huge challenges throughout the world especially concerning pharmaceutical pollutants. Common practices at industrial wastewater treatment facilities need to be upgraded with advanced wastewater treatment techniques. TiO2 based photocatalytic processes have shown great potential for removal of these aqueous pharmaceutical pollutants. Reverse micelle based modified sol-gel method is utilized for the synthesis of TiO2 nanomaterial. Generated reverse micelle nanodomains have controlled size and particle size distribution (PSD) of synthesized TiO2 nanomaterial, as revealed by SEM and DLS analysis. Thermal behaviour of synthesized sample is characterized by TGA analysis. TiO2 photocatalyst is also characterized through XRD, BET surface area, and UV-Vis spectroscopy. TiO2 photocatalyst is used for degradation of three model pharmaceutical pollutants viz. Levofloxacin hemihydrate (LFX), Metronidazole (MNZ) and Ketorolac tromethamine (KRL) under a UV light source. Reverse micelle mediated modified sol-gel method synthesized TiO2 nanomaterial has shown excellent photocatalytical performance, where degradation efficiency of LFX, KRL and MNZ were found to be 99.6%, 98% and 91.4% respectively within a little as 60 minutes.

scholarly journals Visible Light Photocatalytic Activity of Thin Film Coated on Polycarbonate Surface with N- and Ni-Codoped TiO2 Photocatalyst

Catalysts ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1237
Author(s):  
Byung-Geon Park ◽  
Chang-Ho Lee ◽  
Kyong-Hwan Chung
Keyword(s):  
Thin Film ◽  
Visible Light ◽  
Pathogenic Bacteria ◽  
Sol Gel ◽  
Photocatalytic Reaction ◽  
Tio2 Photocatalyst ◽  
E Coli ◽  
Amorphous Tio2 ◽  
Visible Light Photocatalytic ◽  
Decomposition Properties

N- and Ni-coated TiO2 (NNT) were prepared by a facile sol-gel method as a photosensitive photocatalyst to visible light. NNT sol was used to coat the surface of an LED lamp cap and body made of polycarbonate with a thin NNT film. The coated thin film was dried in an oven at 130 °C. This NNT thin film had an amorphous TiO2 structure and absorbed 600 nm of visible light. The decomposition properties of formaldehyde on the NNT photocatalyst after irradiation with visible light were investigated. The LED lamp was irradiated with visible light at 500–620 nm and 6 W. Formaldehyde was decomposed by a photocatalytic reaction by visible light irradiation on the NNT-coated polycarbonate surface. Escherichia coli (E. coli), Staphylococcus aureus, and Pseudomonas aeruginosa were also used to examine the sterilizing properties of pathogenic bacteria using an LED lamp kit. The pathogenic bacteria on the NNT-coated polycarbonate surface were sterilized by irradiation with visible light.

Nonmetal–metal–semiconductor-promoted P/Ag/Ag2O/Ag3PO4/TiO2 photocatalyst with superior photocatalytic activity and stability

2015 ◽  
Vol 3 (34) ◽  
pp. 17858-17865 ◽  
Author(s):  
Xiaohong Hu ◽  
Qi Zhu ◽  
Xinlong Wang ◽  
Naoki Kawazoe ◽  
Yingnan Yang
Keyword(s):  
Photocatalytic Activity ◽  
Sol Gel ◽  
Light Irradiation ◽  
Solar Light ◽  
Tio2 Photocatalyst ◽  
Photocatalytic Ability ◽  
Composite Photocatalyst ◽  
Gel Method ◽  
Simulated Solar Light ◽  
Solar Light Irradiation

P/Ag/Ag2O/Ag3PO4/TiO2 composite photocatalyst has been successfully prepared by a sol–gel method. It shows highly enhanced photocatalytic ability and stability under simulated solar light irradiation.

The Effect of Boron Content on Properties of B-TiO2 Photocatalyst Prepared by Sol-gel Method

2013 ◽  
Vol 16 (2) ◽  
Author(s):  
Wenjie Zhang ◽  
Tingting Hu ◽  
Bo Yang ◽  
Peng Sun ◽  
Hongbo He
Keyword(s):  
Boron Content ◽  
Sol Gel ◽  
Tio2 Photocatalyst ◽  
Gel Method ◽  
Sol Gel Method

AbstractB-TiO

scholarly journals THE EFFECT OF SOL-GEL TEMPERATURE AND SOLVENT POLYETHYLENE GLYCOL (PEG) IN ZnO- TiO2 PHOTOCATALYST ACT AS DEGRADER OF TEXTILE DYEING LIQUID WASTE

2016 ◽  
Vol 10 (2) ◽  
pp. 149
Author(s):  
Tanti Haryati ◽  
Novita Andarini ◽  
Siti Mardhiyah
Keyword(s):  
Crystal Structure ◽  
Photocatalytic Activity ◽  
Polyethylene Glycol ◽  
Uv Light ◽  
Sol Gel ◽  
Liquid Waste ◽  
Synthesis Temperature ◽  
Tio2 Photocatalyst ◽  
Textile Dyeing ◽  
Gel Temperature

<p>The use of TiO<sub>2</sub>  powder  as photocatalyst still provides some disadvantages such as the difficulties in regenerate ion, the low adsorption and turbulence . These problems can be overcomed by providing the photocatalyst as a composite of ZnO-TiO2. This research aims to  investigate  the  effect  of  composition  of  solvent  and  temperatureof  synthesis  on  the quality  and  photocatalytic  activity  of  ZnO-TiO2  which  was  prepared  by  sol-gel  method. The  photocatalytic  activity  was  determined  by  applying  the  composite  in  degradation  of Procion  Red  MX-8B  under  irradition  of  UV  light  for  24  hours.  The  procion  red concentration after degradation was determined by UV-Vis spectrophotometer. Meanwhile the effect of synt hesis temperature on crystal structure  of composite  was studied by XRD. The results show that the composite which was prepared by PEG 1500 at 1:4 of moles ratio and at 70  °C of  synthesis temperature has  highest degradation  percentage,  i.e. 55.375 % and photocataltic activity of 3.561 x 10<sup>-7</sup>mg/cm<sup>2</sup>s.</p>

scholarly journals Pengaruh Laju Penginjeksian Doping Sulfur terhadap Aktivitas Fotokatalis Nanotitania Menggunakan Metode Sol Gel

2019 ◽  
Vol 7 (2) ◽  
pp. 223-230
Author(s):  
Delfi Oktavia Amrani ◽  
◽  
Posman Manurung ◽  
Pulung Karo Karo ◽  
◽  
...  
Keyword(s):  
Sol Gel ◽  
Tween 80 ◽  
Titanium Isopropoxide ◽  
Injection Rate ◽  
Raw Material ◽  
Tio2 Photocatalyst ◽  
Sulfur Doping ◽  
Injection Pump ◽  
Transmission Electron ◽  
Doped Titania

Synthesis of sulfur doped titania (S-TiO2) was carried out through sol-gel method. Titanium isopropoxide (TTIP), tween-80, isopropanol and sulfuric acid (H2SO4) as a source of sulfur doping were used as raw material. The aimed of this research is to study the effect of the rate of sulfur doping injection by using an injection pump toward S-TiO2 photocatalyst activity. Four sulfur doping samples were prepared with rate injection of 4 ml/30; 4 ml/60; 4 ml/90 and 4 ml/120 minutes respectively. Titania powder was calcined at temperatur of 450 oC for 5 hours. The sintered samples were tested for photodegradation of remazol yellow under UV irradiation. Physical characteristics were analyzed using transmission electron microscopy (TEM) and UV-Vis Spectrophotometer. The result of the UV-Vis spectrophotometer showed that sample with an injection rate of 4 ml/30 minutes showed higer photocatalyst activity with the particle size is (7,1 nm ± 1,9 nm)

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