Open AccessActivation of ordered mesoporous carbon nitride prepared via soft-template for CO2 adsorption
Author(s) -
Van-Dung Nguyen,
Nguyen Huy Ngoc,
Tuyet-Mai Tran-Thuy,
Hoa-Hung Lam,
Quang-Long Nguyen
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/947/1/012034
Subject(s) - mesoporous material , materials science , adsorption , carbon fibers , specific surface area , fourier transform infrared spectroscopy , nitrogen , chemical engineering , desorption , bet theory , nuclear chemistry , analytical chemistry (journal) , chemistry , chromatography , organic chemistry , catalysis , composite number , composite material , engineering
A mesoporous carbon nitride material (MCN) was nanocasted by using a soft-template of triblock surfactant Pluronic F127, a carbon resource from resol and dicyandiamide (DCDA) as a nitrogen precursor. The obtained MCN was activated to improve its porous channel (AMCN). A reference sample of mesoporous carbon (MC) material was also prepared in the same protocol without DCDA. The tunable mesostructures (p6m symmetry) was proved by X-ray diffraction, transmission electron microscopy images and nitrogen adsorption-desorption isotherms. Fourier transformation infrared spectroscopy and energy dispersive X-ray spectroscopy presented about 3.1 wt% of doped-nitrogen in the obtained MCN. In comparison to the MC, a significant increase of BET surface area (333 m 2 /g for MC, 414 m 2 /g for MCN and 951 m 2 /g for AMCN) and an enlargement of pore volume (0.23 cm 3 /g for MC, 0.25 cm 3 /g for MCN and 0.33 cm 3 /g for AMCN), which contributed to a noticeable enhancement of the room temperature CO 2 uptake from 1.8 mmol/g (for MC) to 3.7 mmol/g (for MCN) and 4.1 mmol/g (for AMCN). This work emphasized that the assistance of DCDA and further activation resulted in enlargement of both pore volume and BET surface area promising a feasible application of MCN and AMCN in adsorption technology.