title: Adsorption of an azo dye in an aqueous solution using hydroxyl-terminated polybutadiene (HTPB).
abstract: This paper reports an investigation into the effect of a number of operating factors on the removal of Acid Blue 92 (AB92) from an aqueous solution using hydroxyl-terminated polybutadiene (HTPB) as an adsorbent. The optimum values of adsorbent dose and pH were found to be 35mgL(-1) and 6, respectively. Temperature showed a significant effect, with maximum dye removal being observed at 45°C. Stirring the solution during the treatment process resulted in significant removal improvement. The Langmuir adsorption model was used to quantify the amount of AB92 adsorbed on the surface of HTPB. FT-IR spectrometry results for HTPB, AB92, and HTPB-AB92 verified the efficiency of the treatment. Further, the adsorbent was characterized using SEM and H NMR techniques.
authors.affiliation: Department of Environmental Research, Institute for Color Science and Technology, P.O. Box 16765-654, Tehran, Iran. olya-me@icrc.ac.ir
authors.forename: Mohammad Ebrahim
authors.initials: ME
authors.lastname: Olya
authors.forename: Azam
authors.initials: A
authors.lastname: Pirkarami
authors.forename: Mohammad
authors.initials: M
authors.lastname: Mirzaie
mesh_terms: D000327:Adsorption; D001391:Azo Compounds / Q000737:chemistry*; D002070:Butadienes / Q000737:chemistry*; D020724:Elastomers / Q000737:chemistry*; D017665:Hydroxyl Radical / Q000737:chemistry; D007700:Kinetics; D008956:Models, Chemical; D009281:Naphthalenes / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000379:methods*
chemical_list: C555957:Acid Blue 92; D001391:Azo Compounds; D002070:Butadienes; D020724:Elastomers; D009281:Naphthalenes; D014874:Water Pollutants, Chemical; D017665:Hydroxyl Radical; C028834:polybutadiene