化工进展2017，Vol.36Issue(1)：299-304,6.DOI:10.16085/j.issn.1000-6613.2017.01.038
ZIF-8基多孔碳的制备及吸附性能
Preparation and adsorption properties of ZIF-8 based porous carbon
摘要
Abstract
ZIF-8 was calcined in nitrogen,and the calcined samples were characterized by XRD,FESEM, BET,and HRTEM. The adsorption and photocatalytic properties of the calcined samples were tested through the removal of methylene blue. The results showed that the structure and morphology of ZIF-8 were maintained when the calcination temperature was less than 500℃. When the temperature reached 600℃, ZIF-8 began to decompose,the Zn in the structure changed to ZnO,and the complex ZnO@C was formed. Unfortunately,the photocatalytic activity of ZnO@C was not high,because the formed ZnO was covered by C,which reduced tits contact with methylene blue molecules. With the further increase of the temperature, porous carbon of graphite structure was formed. The higher the calcination temperature,the more the particles’ agglomeration and blocks of large particle size were formed by the aggregation of nano-sized particles. The increase of calcination temperature also led to the increases of specific surface area and the number of mesoporous and large pores of the calcined samples. The methylene blue removal experiments showed that the removal efficiency was significantly increased with the increase of carbonization temperature. The removal efficiency of porous carbon formed by carbonization at 1000℃ was better than that of commercial activated carbon,which is mainly because the former had the surface area and larger pore size.关键词
ZIF-8/热解/多孔碳/制备/亚甲基蓝/吸附Key words
ZIF-8/pyrolysis/porous carbon/preparation/methylene blue/adsorption分类
化学化工引用本文复制引用
王春宇,张晶,张青云,徐炳乾,杜艳..ZIF-8基多孔碳的制备及吸附性能[J].化工进展,2017,36(1):299-304,6.基金项目
江苏省自然科学基金项目（BK20130920）。 （）
