title: Solid-solid grinding/templating route to magnetically separable nitrogen-doped mesoporous carbon for the removal of Cu(2+) ions.
abstract: N-doped ordered mesoporous carbon materials (NOMC) with 2D hexagonal symmetry structure were synthesized via a facile solid-solid grinding/templating route, in which the ionic liquids (ILs) of 1-cyanoethyl-3-methylimidazolium chloride and SBA-15 were employed as the precursor and hard template, respectively. The as-synthesized NOMC features with a uniform mesoporous size (3.5nm), ropes-like morphology (0.4-1μm in length) and high surface area (803m(2)/g). The quantitative analysis revealed the nitrogen content on the surface of NOMC is 5.5at%. Magnetic iron nanoparticles were successfully embedded into the carbon matrix by introducing iron chloride to the mixture of SBA-15 and ILs during the synthesis process. The NOMC-Fe composite possessed superior adsorption capacity of Cu(2+) ions (23.6mg/g). Kinetic and isothermal analysis demonstrated the strong interactions between Cu(2+) ion and the adsorbent. Furthermore, the composite was magnetically separable from solution under an external magnetic field and thus displayed a superior reusability in the recycling test.
authors: College of chemical and pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China. Electronic address: chen_ab@163.com.
authors: Aibing
authors: A
authors: Chen
authors: College of chemical and pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China.
authors: Yifeng
authors: Y
authors: Yu
authors: College of chemical and pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China.
authors: Yue
authors: Y
authors: Zhang
authors: College of chemical and pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China.
authors: Tingting
authors: T
authors: Xing
authors: College of chemical and pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China.
authors: Yanyan
authors: Y
authors: Wang
authors: Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China. Electronic address: zhangyexin@nimte.ac.cn.
authors: Yexin
authors: Y
authors: Zhang
authors: Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
authors: Jian
authors: J
authors: Zhang
mesh_terms: D000327:Adsorption; D002244:Carbon / Q000737:chemistry*; D003300:Copper / Q000737:chemistry / Q000302:isolation & purification*; D008280:Magnetics; D008855:Microscopy, Electron, Scanning; D009584:Nitrogen / Q000737:chemistry*; D016062:Porosity; D013816:Thermodynamics; D014961:X-Ray Diffraction
chemical_list: D002244:Carbon; D003300:Copper; D009584:Nitrogen
keywords: Cu(2+) adsorption; Grinding; Mesoporous carbon; Nitrogen-doped