Adsorption and photocatalytic degradation of bisphenol A using TiO2 and its separation by submerged hollowfiber ultrafiltration membrane.
This study evaluates the adsorption ability of bisphenol A (BPA) on titanium dioxide (TiO2) and its effect on the photocatalysis by advanced oxidation process using UV radiation and TiO2 photocatalyst. Degradation of BPA was also evaluated for the system without adsorption prior to photocatalytic reaction. The separation of TiO2 from BPA solution treated by pilot-scale photocatalytic reactor (capacity 0.16 m3) was studied using submerged ultrafiltration (UF) membrane. It was found that although adsorption capacity of BPA was not high, adsorption played an important role in improving the efficiency of photocatalysis. On the other hand, during the separation of TiO2 particles from aqueous suspension, the permeate flux of the membrane was strongly affected by transmembrane pressure and TiO2 dose. The permeate turbidity was decreased below 1 NTU.
Lee
Jae-Wook
JW
Department of Chemistry Engineer, Seonam University, Namwon 590-711, Korea.
Kwon
Tae-Ouk
TO
Thiruvenkatachari
Ramesh
R
Moon
Il-Shik
IS
D000327:Adsorption; D001559:Benzhydryl Compounds; D002384:Catalysis; D008567:Membranes, Artificial; D010636:Phenols / Q000737:chemistry*; D010777:Photochemistry; D014025:Titanium / Q000737:chemistry*; D014462:Ultrafiltration / Q000295:instrumentation*; D000098826:Bisphenol A Compounds
D001559:Benzhydryl Compounds; D008567:Membranes, Artificial; D010636:Phenols; D014025:Titanium; C009495:titanium dioxide; C006780:bisphenol A; D000098826:Bisphenol A Compounds