Nitrogen-Containing Functional Groups-Facilitated Acetone Adsorption by ZIF-8-Derived Porous Carbon

作者：Li, Liqing^*; Ma, Xiancheng; Chen, Ruofei; Wang, Chunhao; Lu, Mingming

来源：Materials, 2018, 11(1): 159.

DOI：10.3390/ma11010159

• ZIF-8
• porous carbon
• nitrogen-containing functional groups
• acetone adsorption

Nitrogen-doped porous carbon (ZC) is prepared by modification with ammonia for increasing the specific surface area and surface polarity after carbonization of zeolite imidazole framework-8 (ZIF-8). The structure and properties of these ZCs were characterized by Transmission electron microscopy, X-ray diffraction, N-2 sorption, X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy. Through static adsorption tests of these carbons, the sample obtained at 600 degrees C was selected as an excellent adsorbent, which exhibited an excellent acetone capacity of 417.2 mg g(-1) (25 degrees C) with a very large surface area and high-level nitrogen doping (13.55%). The microporosity, surface area and N-containing groups of the materials, pyrrolic-N, pyridinic-N, and oxidized-N groups in particular, were found to be the determining factors for acetone adsorption by means of molecular simulation with density functional theory. These findings indicate that N-doped microporous carbon materials are potential promising adsorbents for acetone.

• 出版日期2018-1
• 单位中南大学