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‫جامعة ال م لك ع بدال عزي ز‬
King Abdulaziz University
Document Details
Document Type
Document Title
: Article In Conference
: The adsorption and photcatalytic performance
of nanoscale TiO2 pillared hydrophobic
montmorillonite photocatalysts for toxic
organic pollutants having different
hydrophobicity
The adsorption and photcatalytic performance
of nanoscale TiO2 pillared hydrophobic
montmorillonite photocatalysts for toxic
organic pollutants having different
hydrophobicity
Subject
Document
Language
Abstract
: ‫ءك يم يا‬
: English
: The montmorillonite would become more
hydrophobic and adsorptive to lipophilic
organic pollutants after the inorganic ions
between the interlayer of montmorillonite were
exchanged with various surfactants, and were
frequently employed as an adsorbent of organic
pollutants in water. Moreover, the
montmorillonite would possess excellent
photocatalytic destructing function and good
sediment performance after TiO2 was pillared
into montmorillonite interlays, thus this could
prevent the release of adsorbed pollutants and
enable the adsorbent to be continuously
regenerated in situ by photocatalytic
degradation. In order to investigate the effect of
selective surfactants on the adsorption and
photcatalytic performance, different TiO2
piallared hydrophobic montmorillonite
photocatalysts were originally synthesized by
Sol-gel method at certain ratio of Ti(OC4H9)4
to HCl modified by three different surfactants,
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such as polyvinyl alcohol (PVA), cetyl
trimethyl ammonium bromide (CTMAB) and
Dodecyl benzene sulfonic acid sodium salt
(DBS), respectively. Scanning electron
microscopy (SEM), X-ray diffraction (XRD)
and Energy dispersive spectrum (EDS) were
used to elucidate the texture of prepared
composite catalysts, and BET surface areas and
H2O adsorption isotherms were also measured
to predict the adsorbability to various organic
pollutants. The work originally aim to the
combination of the pre-adsorption and
concentrated effects of aqueous micropollutants onto newly synthesized hydrophobic
TiO2 pillared montmorillonites with the
photocatalytic destruction effect of nanometer
TiO2 pillared in montmorillonite. The prepared
composite photocatalysts should possess high
photocatalytic activity to adsorbed organic
pollutants by utilizing the UV light as
illuminator. And three organic pollutants
having different hydrophobicity, such as methyl
blue, trichlorophenol, and nonylphenol were
selected for the test models in this paper.
: Tenth International Symposium on
Heterogeneous Catalysis
: From : 22/8/1429 AH - To : 26/8/1429 AH
From : 23/8/2008 AD - To : 27/8/2008 AD
: 1429 AH
2008 AD
: Article
: Saturday, February 21, 2009
Researchers
Researcher Name Researcher Name Researcher
Dr
Email
(Arabic)
(English)
Type
Grade
Taicheng An
Taicheng An
Researcher Doctorate
Xuejun Ding
Xuejun Ding
Researcher Doctorate
Guiying Li
Guiying Li
Researcher Doctorate
Hiromi Yamashita Hiromi Yamashita Researcher Doctorate
Shuai Yuan
Shuai Yuan
Researcher Doctorate
Jiamo Fu
Guoying Sheng
Jiamo Fu
Guoying Sheng
Researcher Doctorate
Researcher Doctorate
Files
File Name
18543.pdf
Type
pdf
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