Engineering Poly(Methyl Methacrylate)/Fe₂O₃ Hollow Nanospheres Composite Prepared in Microemulsion System As a Recyclable Adsorbent for Removal of Benzothiophene

Abstract

In this work, we aim to introduce a novel type of PMMA/Fe 2 O 3 hollow nanospheres composite, covering both its synthesis by a microemulsion method that can be grouped into a soft templating category and its niche application. PMMA/Fe 2 O 3 hollow nanospheres composite was fabricated by using a cmbination of O/W microemulsion to prepare polypyrrole (PPy) core and W/O microemulsion to decorate a PMMA shell containing Fe 2 O 3 nanoparticles. At the end, the PPy core was removed with several washing to produce hollow nanospheres composite. The prepared PMMA/ Fe 2 O 3 nanocomposite was characterized with Fourier transform infrared spectrometer (FT-IR), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), transmission electron microscope (TEM), high resolution TEM (HR-TEM), Brunauer−Emmett−Teller (BET), and vibrating sample magnetometer (VSM) analysis. The removal of benzothiophene from an oil model by using the prepared nanocomposite as an absorbent was studied. The obtained results showed that the nanocomposite has good adsorption capacity and also enough magnetic property for simple magnetic recovery with stability after several runs.

Recent Advances and Challenges in Developing Technological Methods Assisting Oxidative Desulfurization of Liquid Fuels: A Review

“…Magnetic Field-Assisted Oxidative Desulfurization. Magnetic nanoparticles (MNPs), because of their outstanding properties that included high magnetic susceptibility, high saturation magnetization, superparamagnetic qualities, low toxicity, and biocompatibility, 175 have been researched in different fields, such as wastewater treatment, 176 cancer therapy, 177 biosensors, 178 medicine, 179 and so on. The magnetic nanoparticles are fabricated from pure metals (Ni, Co, Fe, and some rare earth metals) or a mixture of metals and polymers.…”

Polymer‐based nanocomposites fabricated by microemulsion method

“…Another novel hollow sphere nanocomposite of Fe 2 O 3 /PMMA was also prepared by ME method and applied for removal of benzothiophene from a fuel model. [ 98 ] In this unique procedure the hollow sphere nanocomposite fabricated by combination of O/W ME to prepare PPy core and W/O ME to create a shell of PMMA containing Fe 2 O 3 nanoparticles. Finally the PPy core was removed by washing to produce hollow sphere structure.…”

“…I G U R E 5 Procedure (A) W/O ME system to prepare of iron oxide nanoparticles and procedure (B) O/W ME to prepare PPy nanospheres. Sample (A) stabilized Fe 2 O 3 nanoparticles with AOT surfactant in W/O ME, (B) PPy-containing CTAB micelle, (C) PPy@poly(methyl methacrylate)/Fe 2 O 3 (PPy@PMMA/Fe 2 O 3 ) core-shell nanocomposite before PPy core removal and (D) poly(methyl methacrylate)/Fe 2 O 3 (PMMA/Fe 2 O 3 ) hollow nanospheres[98] …”

Critical Review on Synthetic Routes and Catalytic Applications of Hollow Nanomaterials

“…Hollow porous titaniacould be synthesized through zeolitic imidazolate frameworks and Cu−Ni bimetallic organic frameworks as template employed to form hollow CuO@NiO spheres. [125] Natural Materials as Hard Templates:…”