Charles University in Prague, Faculty of Science, Department of Organic Chemistry, Hlavova 2030/8, 12843 Prague 2, Czech Republic; Hochschule Zittau/Görlitz (University of Applied Science), Fachgruppe Chemie, Theodor-Körner-Allee 16, 02763 Zittau, Germany.
Hochschule Zittau/Görlitz (University of Applied Science), Fachgruppe Chemie, Theodor-Körner-Allee 16, 02763 Zittau, Germany.
J Colloid Interface Sci. 2017 Jul 15;498:335-342. doi: 10.1016/j.jcis.2017.03.064. Epub 2017 Mar 16.
Mesoporous poly(melamine-formaldehyde) (MF) particles with surface areas of up to 200mg were synthesized by an inverse emulsion polymerization using dodecane and Span80® as continuous phase. The finer details of the shape control (using emulsion techniques) and the porosity control (using silica nanoparticles as hard-template) are discussed. The impact of phase-separation processes on the observable porosity of the 20-200µm sized spherical particles is analysed by gas sorption methods and electron microscopy. The high density of amine and triazine functional groups in the porous MF particles make the material a promising adsorber for heavy metal ions and methylene blue. In a preliminary column experiment, the synthesized material exhibited a total capacity of 2.54mmol/g (≙ 812.4mg/g) for the adsorption of methylene blue.
采用反相乳液聚合，以十二烷和司盘 80®为连续相，合成了比表面积高达 200mg 的介孔聚氰胺-甲醛（MF）颗粒。本文详细讨论了通过乳液技术进行的形状控制（使用乳液技术）和通过二氧化硅纳米颗粒作为硬模板进行的孔隙率控制。通过气体吸附法和电子显微镜分析了相分离过程对 20-200μm 尺寸的球形颗粒可观测孔隙率的影响。多孔 MF 颗粒中胺和三嗪官能团的高密度使该材料成为重金属离子和亚甲基蓝的一种很有前途的吸附剂。在初步的柱实验中，合成的材料对亚甲基蓝的吸附总容量为 2.54mmol/g（≙812.4mg/g）。
