title: Trimesic acid coated alumina: an efficient multi-cyclic adsorbent for toxic Cu(II).
abstract: Biodegradable and eco-friendly organic acid, benzene-1,3,5-tri-carboxylic acid (trimesic acid), coated on commercial basic alumina, was used as adsorbent to remove toxic Cu(II) ion from aqueous solution. Adsorbent preparation was optimized and was characterized by SEM, EDX, FT-IR, and powder XRD pattern. Effect of various regulating parameters like reaction pH, adsorbent dose and initial Cu(II) concentration was studied in detail. Adsorption isotherms followed the Langmuir isotherm model and adsorption was thermodynamically favourable. Maximum adsorption capacity (Qm) for Cu(II) ion has been achieved as 10.80 mg/g. Detail kinetic study revealed that it followed second-order rate. Desorption of Cu(II) ion and re-usability of the adsorbent was also studied.
authors.affiliation: Centre for the Environment, Indian Institute of Technology Guwahati, Assam-781039, India.
authors.forename: Bedabrata
authors.initials: B
authors.lastname: Saha
authors.forename: Saswati
authors.initials: S
authors.lastname: Chakraborty
authors.forename: Gopal
authors.initials: G
authors.lastname: Das
mesh_terms: D000327:Adsorption; D000537:Aluminum Oxide / Q000737:chemistry*; D003300:Copper / Q000302:isolation & purification*; D006863:Hydrogen-Ion Concentration; D008855:Microscopy, Electron, Scanning; D013696:Temperature; D013816:Thermodynamics; D014233:Tricarboxylic Acids / Q000737:chemistry; D014877:Water Pollution, Chemical; D018508:Water Purification / Q000379:methods*; D014961:X-Ray Diffraction
chemical_list: D014233:Tricarboxylic Acids; D003300:Copper; D000537:Aluminum Oxide; C069849:trimesic acid