title: The removal of reactive black 5 from aqueous solutions by cotton seed shell.
abstract: This study investigated the removal of Reactive Black 5 (RB5) textile dye from aqueous solutions using cotton (Gossypium hirsutum) seed shell (CSS) as low cost adsorbents. The data were described according to the Freundlich and Langmuir isotherm models. Of these, the Langmuir model provided the best fit for the experimental data. The highest measured adsorption density was 12.19 mg/g at pH 2. An equilibrium adsorption rate of RB5 by CSS (q(e) = 11.879 mg/g) was observed at 30 minutes. In order to evaluate the adsorption kinetic mechanisms, pseudo first and second order rate kinetic models and an intraparticle diffusion model were applied, with the pseudo second order model providing an excellent fit for the data.
authors: Department of Environmental Engineering, Harran University, Osmanbey Campus, 63000 Sanliurfa, Turkey. denizucar@harran.edu.tr
authors: Deniz
authors: D
authors: Uçar
authors: Bülent
authors: B
authors: Armağan
mesh_terms: D000327:Adsorption; D003368:Gossypium / Q000737:chemistry*; D008956:Models, Chemical; D015394:Molecular Structure; D009282:Naphthalenesulfonates / Q000737:chemistry / Q000302:isolation & purification*; D012639:Seeds / Q000737:chemistry; D012996:Solutions; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods*
chemical_list: D009282:Naphthalenesulfonates; D012996:Solutions; D014874:Water Pollutants, Chemical; C063421:Remazol black B