ie0c00203_si_001.pdf (181.57 kB)
Enhanced Dibenzothiophene Capture with Multimetal–Organic Frameworks in the Presence of Benzene and Octane
journal contribution
posted on 2020-03-31, 16:34 authored by Yuan Gao, Jiafei Wu, Xiaoqin Xiong, Na Yan, Na Ma, Wei DaiTo enhance dibenzothiophene (DBT)
capture performance, we innovatively
synthesized a series of novel multimetal–organic frameworks
(MMOFs) by the incorporation of Ag+, Cu2+, Zn2+, and Ni2+ within one structure. Those novel desulfurizers
have been fully characterized and their structural changes further
compared in terms of nitrogen adsorption–desorption, powder
X-ray diffraction, scanning electron microscopy, Fourier transform
infrared spectroscopy, inductively coupled plasma, X-ray photoelectron
spectroscopy, and so forth. The DBT capture properties with as-synthesized
MMOFs in different simulated fuels were evaluated through a series
of batch tests. All further investigations demonstrated that the Ag/Zn/Ni/Cu-BTC
exhibited a remarkably high sulfur capacity attributed to the associative
effects of π-complexation and acid–base interaction.
Additionally, based on sieving and inertia mechanisms, this adsorbent
possessed an extremely high affinity for DBT capture in the presence
of benzene and octane. Especially, the Ag/Zn/Ni/Cu-BTC could sustain
an outstanding desulfurization property after the fifth cycle. Our
study opens up a new perspective for the design of desirable MMOF
materials, promoting their potential development in the aspects of
adsorption desulfurization.