title: Microwave-enhanced synthesis of magnetic porous covalent triazine-based framework composites for fast separation of organic dye from aqueous solution.
abstract: A novel type of magnetic porous carbonaceous polymeric material, CTF/Fe(2)O(3) composite (CTF = covalent triazine-based framework), has been synthesized by a facile microwave-enhanced high-temperature ionothermal method. By selecting ZnCl(2) as a reaction medium and the Lewis acid catalyst, and choosing FeCl(3)·6H(2)O as an iron oxide precursor, a series of CTF/Fe(2)O(3) composites with different γ-Fe(2)O(3) contents has been prepared in 60 min. The resulting samples were characterized by the X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), vibration sample magnetometer (VSM), and N(2) sorption-desorption isotherms. The obtained CTF/Fe(2)O(3) composites exhibit high surface areas (930-1149 m(2) g(-1)), and their saturation magnetizations at 300 K vary from 1.1 to 5.9 emu g(-1), depending respectively on different Fe(2)O(3) contents (6.43-12.43 wt%) in the CTF/Fe(2)O(3) composites. The CTF/Fe(2)O(3) composites were applied to remove organic dye from aqueous solution by selecting methyl orange as a model molecule, and both high adsorption capacity (291 mg g(-1), corresponding to 0.889 mmol g(-1)) and fast adsorption kinetics (k(ads) = 4.31 m(2) mg(-1) min(-1)) were observed.
authors.affiliation: Laboratory of Advanced Porous Materials, School of Chemistry and Chemical Engineering, Anhui University, 3rd Feixi Road, Hefei 230039, Anhui Province, China.
authors.forename: Wang
authors.initials: W
authors.lastname: Zhang
authors.forename: Fei
authors.initials: F
authors.lastname: Liang
authors.forename: Cun
authors.initials: C
authors.lastname: Li
authors.forename: Ling-Guang
authors.initials: LG
authors.lastname: Qiu
authors.forename: Yu-Peng
authors.initials: YP
authors.lastname: Yuan
authors.forename: Fu-Min
authors.initials: FM
authors.lastname: Peng
authors.forename: Xia
authors.initials: X
authors.lastname: Jiang
authors.forename: An-Jian
authors.initials: AJ
authors.lastname: Xie
authors.forename: Yu-Hua
authors.initials: YH
authors.lastname: Shen
authors.forename: Jun-Fa
authors.initials: JF
authors.lastname: Zhu
mesh_terms: D000327:Adsorption; D000465:Algorithms; D001391:Azo Compounds / Q000737:chemistry; D002712:Chlorides / Q000737:chemistry; D004396:Coloring Agents / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry; D006358:Hot Temperature; D007202:Indicators and Reagents; D007700:Kinetics; D008280:Magnetics; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D008872:Microwaves; D009930:Organic Chemicals / Q000737:chemistry*; D056951:Photoelectron Spectroscopy; D016062:Porosity; D012996:Solutions; D013055:Spectrophotometry, Infrared; D013816:Thermodynamics; D014227:Triazines / Q000737:chemistry*; D014867:Water; D014961:X-Ray Diffraction; D017967:Zinc Compounds / Q000737:chemistry
chemical_list: D001391:Azo Compounds; D002712:Chlorides; D004396:Coloring Agents; D005290:Ferric Compounds; D007202:Indicators and Reagents; D009930:Organic Chemicals; D012996:Solutions; D014227:Triazines; D017967:Zinc Compounds; D014867:Water; C000499:ferric oxide; C100258:methyl orange; C016837:zinc chloride