title: Biosorption of Methylene Blue onto spent corncob substrate: kinetics, equilibrium and thermodynamic studies.
abstract: This study focuses on the possible use of the spent corncob substrate (SCS), an agricultural waste used after the cultivation of white rot fungus Pleurotus ostreatus, to adsorb Methylene Blue (MB) from aqueous solutions. A batch adsorption study was carried out with variable solution pH, adsorption time, temperature and initial MB concentration. It was found that MB uptake was favorable at pH ranging from 4.0 to 12.0 and the equilibrium adsorption capacity can be reached promptly within about 180 min. The biosorption data were also calculated by the pseudo-second-order kinetic model and Langmuir isotherm model. Thermodynamic parameters show that the adsorption is a spontaneous and endothermic process. The study highlighted a new pathway to develop potential low-cost biosorbent for the removal of dye pollutants from wastewater.
authors: School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, PR China.
authors: Qi
authors: Q
authors: Zhou
authors: W Q
authors: WQ
authors: Gong
authors: Y B
authors: YB
authors: Li
authors: S H
authors: SH
authors: Chen
authors: D J
authors: DJ
authors: Yang
authors: C P
authors: CP
authors: Bai
authors: X F
authors: XF
authors: Liu
authors: N
authors: N
authors: Xu
mesh_terms: D000327:Adsorption; D000383:Agriculture; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008751:Methylene Blue / Q000737:chemistry / Q000302:isolation & purification*; D012996:Solutions; D013056:Spectrophotometry, Ultraviolet; D013816:Thermodynamics; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods*; D003313:Zea mays / Q000737:chemistry*
chemical_list: D012996:Solutions; D014874:Water Pollutants, Chemical; D008751:Methylene Blue