Sonochemical synthesis of magnetic responsive Fe3O4@TMU-17-NH2 composite as sorbent for highly efficient ultrasonic-assisted denitrogenation of fossil fuel

Abstract

In this work, a novel magnetic responsive composite was fabricated by encapsulation of FeO nanoparticles into an amino-functionalized MOF (TMU-17-NH) under ultrasound irradiation. The prepared materials were characterized by several techniques such as elemental analyses, PXRD, FT-IR, N adsorption, TGA and ICP. This composite has been applied to the adsorptive removal of nitrogen-contain compounds in model liquid fuel. The prepared composite demonstrates very good performance for the removal of NCCs. The maximum adsorption capacity of IND and QUI over prepared composite calculated 375.93 and 310.18mg·g at 25°C, respectively. The composite material is magnetically separable and reusable for several times.

Magnetic composites Fe 3 O 4 @SiO 2 @PILs as sorbents for efficient denitrogenation of fuel oil

“…The possible mechanism (Fig. 8) is assumed that H + from the ionisation of HSO 4 − anions ILs can attack lone pair of electrons of N in the quinoline molecule to form charged ions to accelerate the transfer of quinoline from oil phase into aqueous phase, which agrees to the denitrification mechanism of H 2 PO 4 − anion imidazolium-based ILs in the literature [22,23,30]. On the other hand, the π-π interactions between quinoline and PILs may also…”

“…Sun and co-workers [29] prepared magnetic HKUST-1/Fe 3 O 4 composites to remove the N-compounds in fuel, which showed that the adsorbents had a high adsorptive capacity of 0.89 mmol/g N in indole. Afzalinia and his colleagues [30] synthesised Fe 3 O 4 @TMU-17-NH 2 as sorbent for highly efficient ultrasonic-assisted denitrogenation of fossil fuel. The maximum adsorption capacity of the synthesised composite to indole and quinoline is calculated by 375.93 and 310.18 mg/g at 25°C, respectively.…”

Deep Denitrogenation of Model Diesel Fuel Using Ni‐doped Mesoporous Carbon: Synthesis Route and Adsorption Study

“…However, since indole is neutral in nature, acid‐base interaction mechanisms were not acceptable. So, possible mechanisms for adsorption of indole over the adsorbents are van der Waals interaction (owing to simple pore filling), H‐bonding (between H atom of the pyrrolic NH group in the indole structure and hydroxyl group of the sorbents), and π‐complexation (which relies on an interaction between the π‐electrons of the aromatic rings and nickel (II) cations) [11,30] …”

“…Furthermore, HDN, compared with hydrodesulfurization (HDS), is an inefficient and kinetically slow multistep process since needed the destruction of cyclic rings of NCCs, and also NH 3 produced during the HDN process is poisonous to the hydrotreating catalyst [27–29] . To overcome HDN's failures, the adsorptive denitrogenation (ADN) process has been considered as one of the most promising methods due to the economical and mild technical conditions [3,30] . To this purpose, various adsorbents, including carbon porous materials, [31,32] metal‐organic frameworks (MOFs), [33,34] zeolites, [35] ion exchange resins, [36] metal oxides, [37,38] mesoporous silica, [39,40] Ni‐based adsorbents, etc., [41,42] have been applied for adsorptive elimination of NCCs.…”

Fe3O4@MOF Magnetic Nanocomposites: Synthesis and Applications

“…In 2017, Mirzaie and colleagues prepared a magnetic composite through the encapsulation of Fe 3 O 4 NPs into an amino‐functionalized MOF (TMU‐17‐NH 2 ) under ultrasound irradiation . Due to the presence of MNPs and MOF in this composite, they could achieve easy separation and high adsorbing capacity.…”