title: Adsorption behaviors of methyl orange dye on nitrogen-doped mesoporous carbon materials.
abstract: A series of nitrogen-doped mesoporous carbon materials (NMC) with different nitrogen contents (from 9.1 to 11.3 wt.%) were prepared using urea and ammonia as economical nitrogen resources by sol-gel method. The NMC materials possessed high surface areas (from 659 m(2)/g to 912 m(2)/g) as well as large number of oxygen-containing and nitrogen-containing groups. The adsorption behaviors of NMC materials for anionic dye methyl orange (MO) were investigated, which are fit excellent for the Langmuir isothermal adsorption equation. All the materials exhibited high adsorption capacity for MO at room temperature. Their adsorption capacity can be adjusted by changing the nitrogen contents in NMC materials. Moreover, treating the NMC material at higher temperature can significantly improve the adsorption capacity for MO. According to the results of characterization, the main features of NMC materials, like large pore size and abundant basic nitrogen-containing groups on the surface, should be related to the excellent adsorption property for MO.
authors.affiliation: Key Laboratory of Surface and Interface Chemistry of Jilin Province, College of Chemistry, Jilin University, Changchun 130021, PR China.
authors.forename: He
authors.initials: H
authors.lastname: Li
authors.affiliation: State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming Institute of Precious Metals, Kunming 650106, PR China.
authors.forename: Nihong
authors.initials: N
authors.lastname: An
authors.affiliation: Key Laboratory of Surface and Interface Chemistry of Jilin Province, College of Chemistry, Jilin University, Changchun 130021, PR China.
authors.forename: Gang
authors.initials: G
authors.lastname: Liu
authors.affiliation: Key Laboratory of Groundwater Resources and Environment, Ministry of Education, College of Environment and Resources, Jilin University, Changchun 130021, PR China.
authors.forename: Jialu
authors.initials: J
authors.lastname: Li
authors.affiliation: Key Laboratory of Groundwater Resources and Environment, Ministry of Education, College of Environment and Resources, Jilin University, Changchun 130021, PR China.
authors.forename: Na
authors.initials: N
authors.lastname: Liu
authors.affiliation: Key Laboratory of Surface and Interface Chemistry of Jilin Province, College of Chemistry, Jilin University, Changchun 130021, PR China.
authors.forename: Mingjun
authors.initials: M
authors.lastname: Jia
authors.affiliation: Key Laboratory of Surface and Interface Chemistry of Jilin Province, College of Chemistry, Jilin University, Changchun 130021, PR China.
authors.forename: Wenxiang
authors.initials: W
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Surface and Interface Chemistry of Jilin Province, College of Chemistry, Jilin University, Changchun 130021, PR China; Key Laboratory of Groundwater Resources and Environment, Ministry of Education, College of Environment and Resources, Jilin University, Changchun 130021, PR China. Electronic address: yuanxl@jlu.edu.cn.
authors.forename: Xiaoling
authors.initials: X
authors.lastname: Yuan
keywords: Adsorption; Carbon; Mesopore; Methyl orange; Nitrogen-doped