title: Application of novel copolymer-TiO(2) membranes for some textile dyes adsorptive removal from aqueous solution and photocatalytic decolorization.
abstract: Novel low density polyethylene-grafted-poly(4-vinylpyridine-co-acrylamide) (LDPE-g-P(4-VP/AAm)) films were prepared by means of gamma-radiation-induced graft copolymerization as support for photocatalytic application. Nanometer-sized TiO(2) particles were immobilized to the grafted LDPE via dip coating technique. The efficiency of immobilized photocatalyst is tested on two target pollutants (textile azo dyes: Remazol red RB-133 (RR RB 133) and reactive blue 2 (RB2)). The efficient photocatalytic ability as reflected in determined photobleaching rate of both dyes was observed and is comparable to that for the non-supported TiO(2) used in a typical slurry photoreactor. The LDPE-g-(4-VP/AAm) copolymers supported TiO(2) photocatalyst has the practical advantages of easy separation and removal from the polluted environment. It could be a viable technique for the safe disposal of textile wastewater into the water streams.
authors.affiliation: Nano-Photochemistry and Solarchemistry Lab, Department of Chemistry, Faculty of Science, Ain Shams University, Abbassia, Cairo, Egypt.
authors.forename: Amr A
authors.initials: AA
authors.lastname: Essawy
authors.forename: A El-Hag
authors.initials: Ael-H
authors.lastname: Ali
authors.forename: M S A
authors.initials: MS
authors.lastname: Abdel-Mottaleb
mesh_terms: D000327:Adsorption; D002384:Catalysis; D004396:Coloring Agents / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D008567:Membranes, Artificial; D015394:Molecular Structure; D053758:Nanoparticles; D010777:Photochemistry; D011108:Polymers / Q000737:chemistry*; D013783:Textile Industry; D014025:Titanium / Q000737:chemistry*; D014865:Waste Disposal, Fluid / Q000379:methods*; D018508:Water Purification / Q000379:methods
chemical_list: D004396:Coloring Agents; D008567:Membranes, Artificial; D011108:Polymers; C009495:titanium dioxide; D014025:Titanium