title: Synthesis of high surface area, mesoporous MgO nanosheets with excellent adsorption capability for Ni(II) via a distillation treating.
abstract: Hexagonal mesoporous MgO nanosheets with a side length of 250 nm and specific surface area of 181.692 m(2)/g were fabricated by a three-step process. Firstly, MgO powders were obtained by sintered Mg5(OH)2(CO3)4⋅4H2O, which was synthesized by a wet precipitation process using ammonium hydrogen carbonate as precipitants. Secondly, the above-MgO were distilled 2 h in a three-necked bottle with condenser device. Lastly, we annealed the distilled-MgO at 500-800 °C to form mesoporous MgO nanosheets. We found the pore size distribution and the thicknesses of nanosheets were determined by the distillation process in step 2 and annealed temperature in step 3. By optimizing the experimental parameters, the mesoporous dis-MgO annealed at 600 °C displayed uniform hexagonal structure with the largest pore volume (0.875 cm(3)/g) and highest BET surface area (181.692 m(2)/g), as well as the maximum adsorption capability of 1684.25 mg/g for Ni(II).
authors.affiliation: Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China. Electronic address: fengjing@hrbeu.edu.cn.
authors.forename: Jing
authors.initials: J
authors.lastname: Feng
authors.affiliation: Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China.
authors.forename: Linyi
authors.initials: L
authors.lastname: Zou
authors.affiliation: Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China.
authors.forename: Yuting
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China.
authors.forename: Bowen
authors.initials: B
authors.lastname: Li
authors.affiliation: Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China.
authors.forename: Xiaofeng
authors.initials: X
authors.lastname: He
authors.affiliation: Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China. Electronic address: fanzhj666@163.com.
authors.forename: Zhuangjun
authors.initials: Z
authors.lastname: Fan
authors.affiliation: Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China.
authors.forename: Yueming
authors.initials: Y
authors.lastname: Ren
authors.affiliation: Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China.
authors.forename: Yanzhuo
authors.initials: Y
authors.lastname: Lv
authors.affiliation: Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China.
authors.forename: Milin
authors.initials: M
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China.
authors.forename: Dan
authors.initials: D
authors.lastname: Chen
keywords: Adsorption; Distillation process; High surface area; Mesoporous; MgO nanosheets; Ni(II)