title: Starch/polyaniline nanocomposite for enhanced removal of reactive dyes from synthetic effluent.
abstract: Starch/polyaniline nanocomposite was synthesized by chemical oxidative polymerization of aniline and was subsequently analyzed for dye removal from aqueous solution. Batch experiment results showed that nanocomposite removed 99% of Reactive Black 5, 98% of Reactive Violet 4, and decolorized 87% of dye bath effluent. The Toth isotherm model better described single component equilibrium adsorption, whereas the modified Freundlich model showed satisfactory fit for dye bath. In kinetic modeling, single system followed pseudo-second-order and dye bath followed the modified pseudo-first-order model. Fourier transform infrared spectroscopy pattern of the nanocomposite showed the participation of aromatic, amino, hydroxyl, and carboxyl groups. The results indicate that starch/polyaniline nanocomposite can be used as an effective adsorbent for removal of dyes from textile effluents.
authors.affiliation: Department of Chemistry, Periyar University, Salem 636011, Tamil Nadu, India.
authors.forename: V
authors.initials: V
authors.lastname: Janaki
authors.forename: K
authors.initials: K
authors.lastname: Vijayaraghavan
authors.forename: Byung-Taek
authors.initials: BT
authors.lastname: Oh
authors.forename: Kui-Jae
authors.initials: KJ
authors.lastname: Lee
authors.forename: K
authors.initials: K
authors.lastname: Muthuchelian
authors.forename: A K
authors.initials: AK
authors.lastname: Ramasamy
authors.forename: Seralathan
authors.initials: S
authors.lastname: Kamala-Kannan
mesh_terms: D000327:Adsorption; D000814:Aniline Compounds / Q000737:chemistry*; D004396:Coloring Agents / Q000302:isolation & purification*; D007700:Kinetics; D053761:Nanocomposites / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013213:Starch / Q000737:chemistry*; D013816:Thermodynamics; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000379:methods*; D014961:X-Ray Diffraction
chemical_list: D000814:Aniline Compounds; D004396:Coloring Agents; D014874:Water Pollutants, Chemical; C416807:polyaniline; D013213:Starch