منابع مشابه
Carbon-modified TiO2 for photocatalysis
Here we present a method to produce TiO2 nanocrystals coated by thin layer of graphitic carbon. The coating process was prepared via chemical vapor deposition (CVD) with acetylene used as a carbon feedstock with TiO2 used as a substrate. Different temperatures (400°C and 500°C) and times (10, 20, and 60 s) of reaction were explored. The prepared nanocomposites were investigated by means of tran...
متن کاملTiO2 photocatalysis
It is known that TiO2 exhibits good photocatalytic properties which could be used in various commercial applications such as water and air purification or photo-induced biodegradation of microbes. TiO2 occurs in nature in the form of three crystal polymorphs: anatase, brookite and rutile. For photocatalytic applications only anatase and rutile are of interest, however anatase shows greater phot...
متن کاملSelenium-modified TiO2 and its impact on photocatalysis.
This work describes the preparation of a selenium-modified TiO(2) photocatalyst and a preliminary evaluation of its photocatalytic activity. Se-TiO(2) displayed greater visible absorption than undoped TiO(2) and was still capable of degrading quinoline at a slightly faster rate than undoped TiO(2) under UV light. Se-TiO(2) was also able to degrade organic molecules under purely visible light by...
متن کاملTiO2 Photocatalysis and Diamond Electrode
This paper presents a simple process for making tellurium (Te) nanoand microtubes of widely varying dimensions with the multiscale processing (MSP) technique. In this process, the Te metal was placed in a borosilicate glass reaction vessel and a fuse quartz substrate was added. Th vessel was evacuated and seal d unde vacuum with a torch. Then, the vessel was heated under a temperatur gradient w...
متن کاملCombination of Adsorption on Activated Carbon and Oxidative Photocatalysis on TiO2 for Gaseous Toluene Remediation
The influence of activated carbon on the activity of TiO2 in toluene photooxidation was studied to verify the efficiency of both materials working ensemble. Results showed that surface pH and more strongly the surface area of activated carbon influence the TiO2 photoactivity. Results suggest that toluene adsorbed on carbon diffuses to TiO2 where photooxidation takes place. In conclusion, TiO2-a...
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ژورنال
عنوان ژورنال: Nanoscale Research Letters
سال: 2012
ISSN: 1556-276X
DOI: 10.1186/1556-276x-7-235