Efficient adsorptive desulfurization by task‐specific porous organic polymers

Abstract

A task-specific mesoporous organic polymer (TSPOP) with unique features like good porosity and rich aromatic phenyl groups was facilely made and utilized as a promising adsorptive desulfurization absorbent for the first time. The material exhibits an efficient saturated adsorption of dibenzothiophene (DBT), as high as 111.1 mg g 21. In addition, the intrinsic mesoporous skeleton of TSPOP gave rise to a facile incorporation of uniform Ag(I) species inside the network which facilitated the uptake of organosulfur compounds. A significantly higher saturated DBT adsorption for Ag(I)-loaded TSPOP reaches 203.7 mg g 21 via a multiple-site interaction. A detailed model study based on the density functional calculation provides a deeper understanding of the origin of this high activity. In addition to the p-p stacking between DBT and phenyl rings, there exists an additional p-complexation adsorption with Ag(I) ions, thus, significantly improving the DBT capture performance.

Experimental and Computational Study of Organic Sulfur Removal Proficiency of (Ni, Cu, Co)‐Doped ZIF‐8 Adsorbents

“…The ability of MOF adsorbents to do interact with the aromatic ring of sulfur‐containing compounds such as dibenzothiophene (DBT) via the π−π stacking interactions and creating π‐complexation are reported to be the main cause of DBT removal by the ADS process . Significantly, the coordinatively unsaturated (open) metal sites are also of the main reasons which made these compounds as good adsorbents due to their Lewis‐acidic characteristics .…”

Nut-like MOF/hydroxylated graphene hybrid materials for adsorptive desulfurization of thiophene

“…4 More importantly, HDS is not suitable for ultra-deep desulfurization due to the high requirements of the operating conditions (high temperature and pressure), extra H 2 consumption and octane number loss. 5 To achieve ultra-deep desulfurization, adsorptive desulfurization (ADS) is considered one of the most promising alternative technologies to HDS with several advantages such as mild operation conditions and low energy consumption. [6][7][8][9][10] To date, various adsorbents such as porous carbon materials [11][12][13] and zeolites 14 have been successfully applied to the ADS eld with good desulfurization performances.…”

Mechanochemically Assisted Synthesis of Ruthenium Clusters Embedded in Mesoporous Carbon for an Efficient Hydrogen Evolution Reaction

“…The Brunauer‐Emmett‐Teller (BET) method was utilized to determine the specific surface area and pore size distributions (PSDs) were calculated using BJH method . t‐plot model was used to determine t‐plot micropore area of the samples . High‐angle annular dark field scanning transmission electron microscopy (HAADF‐STEM), high‐resolution transmission electron microscopy (HRTEM) and energy‐dispersive X‐ray spectrometry (EDX) were performed on a Double Cs Corrector Transmission Electron Microscope (Themis Z).…”

“…[70] t-plot model was used to determine t-plot micropore area of the samples. [71] High-angle annular dark field scanning transmission electron microscopy (HAADF-STEM), high-resolution transmission electron microscopy (HRTEM) and energy-dispersive X-ray spectrometry (EDX) were performed on a Double Cs Corrector Transmission Electron Microscope (Themis Z). The surface element states of the samples were also probed by X-ray photoelectron spectroscopy (XPS) measurements on a Thermo Fisher ESCALAB Xi + spectrometer equipped with an AlÀ Kα (1486.6 eV) as X-ray source, and these data were fitted by the software XPSPEAK41.…”