TY - JOUR
T1 - Microwave-assisted synthesis of well-shaped UiO-66-NH2 with high CO2 adsorption capacity
AU - Huang, Aisheng
AU - Wan, Linlin
AU - Caro, Jürgen
N1 - Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2018/2
Y1 - 2018/2
N2 - In a detailed study, the influence of microwave irradiation, synthesis time and temperature, addition of acetic acid (HAc) as a modulator on the morphology, crystallinity and stability of UiO-66-NH2 is investigated to develop a reliable and reproducible strategy for the preparation of well-shaped UiO-66-NH2. The UiO-66-NH2 were characterized by powder X-ray diffraction (PXRD), field emission scanning electron microscopy (FESEM), thermogravimetric analysis (TGA), and gas adsorption. It is found that well-shaped UiO-66-NH2 with a high CO2 adsorption capacity can be synthesized in a short time by microwave heating. The UiO-66-NH2 crystals synthesized by microwave heating are of high quality and show a superior CO2 adsorption capacity (5.8 mmol/g at 273k and 1 bar) due to the strong interactions between the −NH2 group and CO2. The CO2/N2 selectivity of the obtained UiO-66-NH2 at 298 K and 1 bar is 66, which is much higher than that of the pristine UiO-66 of 17.8.
AB - In a detailed study, the influence of microwave irradiation, synthesis time and temperature, addition of acetic acid (HAc) as a modulator on the morphology, crystallinity and stability of UiO-66-NH2 is investigated to develop a reliable and reproducible strategy for the preparation of well-shaped UiO-66-NH2. The UiO-66-NH2 were characterized by powder X-ray diffraction (PXRD), field emission scanning electron microscopy (FESEM), thermogravimetric analysis (TGA), and gas adsorption. It is found that well-shaped UiO-66-NH2 with a high CO2 adsorption capacity can be synthesized in a short time by microwave heating. The UiO-66-NH2 crystals synthesized by microwave heating are of high quality and show a superior CO2 adsorption capacity (5.8 mmol/g at 273k and 1 bar) due to the strong interactions between the −NH2 group and CO2. The CO2/N2 selectivity of the obtained UiO-66-NH2 at 298 K and 1 bar is 66, which is much higher than that of the pristine UiO-66 of 17.8.
KW - CO capture
KW - CO/N separation
KW - Metal-organic frameworks
KW - Microwave-assisted synthesis
KW - UiO-66-NH
UR - https://www.scopus.com/pages/publications/85034766927
U2 - 10.1016/j.materresbull.2017.10.038
DO - 10.1016/j.materresbull.2017.10.038
M3 - 文章
AN - SCOPUS:85034766927
SN - 0025-5408
VL - 98
SP - 308
EP - 313
JO - Materials Research Bulletin
JF - Materials Research Bulletin
ER -