title: [Removal Congo Red from Aqueous Solution Using Poly (AM-co-DVB)].
abstract: Poly(AM-co-DVB) was synthesized by acrylamide(AM) and divinylbenzene(DVB) via the crosslinking reaction. The microscope structure and thermal stability of Poly(AM-co-DVB) were characterized by FT-IR, SEM and TG. Congo red (CR) was used to measure the adsorptive capacity of Poly (AM-co-DVB). The effects of initial pH, contact time and temperature on the adsorption of CR on Poly (AM-co-DVB) were investigated in this work. The kinetics, equilibrium, and thermodynamics of the adsorption process were also discussed. The results showed that the maximum adsorption capacities were 319.1 mg x g(-1) at pH = 7.25 and contact time = 3 h. The adsorption kinetics was well fitted by a pseudo-second-order model and the adsorption isotherms agreed well with the Langmuir model. The adsorption process was spontaneous process. Above all, the adsorption capacity of Poly (AM-co-DVB) on Congo red is significant.
authors.forename: Luan-luan
authors.initials: LL
authors.lastname: Zhang
authors.forename: Yun-wen
authors.initials: YW
authors.lastname: Liao
authors.forename: He-jun
authors.initials: HJ
authors.lastname: Gao
authors.forename: Zhong-zhi
authors.initials: ZZ
authors.lastname: Wang
authors.forename: Chao
authors.initials: C
authors.lastname: Shuai
mesh_terms: D000178:Acrylamides / Q000737:chemistry*; D000327:Adsorption; D003224:Congo Red / Q000302:isolation & purification*; D007700:Kinetics; D017550:Spectroscopy, Fourier Transform Infrared; D013696:Temperature; D013816:Thermodynamics; D014753:Vinyl Compounds / Q000737:chemistry*
chemical_list: D000178:Acrylamides; D014753:Vinyl Compounds; D003224:Congo Red; C004985:divinyl benzene