Journal
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
Volume 18, Issue 2, Pages 67-74Publisher
SPRINGER
DOI: 10.1007/s10450-011-9381-z
Keywords
Photocatalysis; Adsorption; Activated Carbon; Titanium dioxide; Bifunctional carbon
Categories
Funding
- Distinguished Young Scientist Foundation of Heilongjiang Province [JC200801]
- National Natural Science Foundation of China [30771692]
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Bifunctional activated carbons (AC) with the abilities of both photocatalysis and adsorption were fabricated via the sol-gel route combined with hydrothermal treatment and N-2 reactivation method. TiO2 was located mainly at the entrance of the surface macropores of AC. Under UV light irradiation, efficient removal of phenol was realized by combination of adsorption and photocatalytic degradation for the obtained bifunctional materials. In insufficient light or dark, phenol removal occurred mainly through adsorption. The prepared bifunctional carbon with a mass ratio of 50 TiO2 per AC ratio exhibited high efficiency for phenol removal. The total phenol removal capacity of 50TiO(2)/AC was almost 5 times of that of pure AC and 6 times of that pure TiO2 after 10 cycles. The prepared bifunctional carbons possess the advantages of high pollutant removal capability and good recyclability, making them promising for the efficient treatment of lightly polluted aqueous solutions.
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