title: Adsorption of fluoride from aqueous solution by graphene.
abstract: A batch adsorption system was applied to investigate the adsorption of fluoride from aqueous solution by graphene. The adsorption capacities and rates of fluoride onto graphene at different initial pH, contact time, and temperature were evaluated. The experimental results showed that graphene is an excellent fluoride adsorbent with an adsorption capacity of up to 17.65 mg/g at initial fluoride concentration of 25 mg/L and temperature of 298 K. The isotherm analysis indicated that the adsorption data can be well described by Langmuir isotherm model. Thermodynamic studies revealed that the adsorption reaction was a spontaneous and endothermic process.
authors.affiliation: Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao University, 308 Ningxia Road, Qingdao 266071, China. liyanhui@tsinghua.org.cn
authors.forename: Yanhui
authors.initials: Y
authors.lastname: Li
authors.forename: Pan
authors.initials: P
authors.lastname: Zhang
authors.forename: Qiuju
authors.initials: Q
authors.lastname: Du
authors.forename: Xianjia
authors.initials: X
authors.lastname: Peng
authors.forename: Tonghao
authors.initials: T
authors.lastname: Liu
authors.forename: Zonghua
authors.initials: Z
authors.lastname: Wang
authors.forename: Yanzhi
authors.initials: Y
authors.lastname: Xia
authors.forename: Wei
authors.initials: W
authors.lastname: Zhang
authors.forename: Kunlin
authors.initials: K
authors.lastname: Wang
authors.forename: Hongwei
authors.initials: H
authors.lastname: Zhu
authors.forename: Dehai
authors.initials: D
authors.lastname: Wu