Physicochemical and Adsorption Characteristics of Divinylbenzene-co-Triethoxyvinylsilane Microspheres as Materials for the Removal of Organic Compounds.

Alicja Bosacka,Małgorzata Wasilewska,Anna Derylo-Marczewska,Małgorzata Zienkiewicz-Strzalka,Beata Podkościelna

doi:10.3390/molecules26082396

Alicja Bosacka, Małgorzata Wasilewska + Show 3 more

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https://doi.org/10.3390/molecules26082396

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Abstract

In this work, organic-inorganic materials with spherical shape consisting of divinylbenzene (DVB) and triethoxyvinylsilane (TEVS) were synthesized and investigated by different complementary techniques. The obtained microspheres may be applied as sorbent systems for the purification of organic compounds from water. The hybrid microspheres combine the properties of the constituents depending on the morphologies and interfacial bonding. In this work, the influence of the molar ratio composition of crosslinked monomer (DVB) and silane coupling agent (TEVS) (DVB:TEVS molar ratios: 1:2, 1:1 and 2:1) on the morphology and quality of organic-inorganic materials have been examined. The materials were analysed using small angle X-ray scattering (SAXS) analysis, low-temperature nitrogen sorption, scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) to provide information on their structural and surface properties. Moreover, thermal analysis was performed to characterize the thermal stability of the studied materials and the adsorbent-adsorbate interactions, while adsorption kinetic studies proved the utility of the synthesized adsorbents for water and wastewater treatment.

Highlights

The development of industry and technology has contributed to the increase in demand for materials with well-defined characteristics and combining several features of different solids in one type of structure [1,2,3]
The effect of the proportions of reacting TEVS and DVB components on the properties of the newly synthesized materials was investigated via scanning electron microscopy (SEM) and further correlated and developed by small angle X-ray scattering (SAXS) and nitrogen adsorption/desorption analysis
It was found that the copolymerization of divinylbenzene with triethoxyvinylsilane by the suspension polymerization method led to obtaining well-defined polymericinorganic microspheres

Summary

Introduction

The development of industry and technology has contributed to the increase in demand for materials with well-defined characteristics and combining several features of different solids in one type of structure [1,2,3]. Organic-inorganic materials based on a polymer matrix are some of the most frequently obtained types of hybrid systems because of their ease of synthesis and further modification [7,8]. Polymers have many desirable physical properties including tensile strength, modulus, toughness, or viscoelasticity. Because of their worse mechanical and thermal properties in comparison to metals or ceramics, numerous polymers have restricted use in engineering applications [9,10]. The mechanical and thermal properties of polymers can be improved by combining them in organic-inorganic systems. The inorganic component provides the mechanical and thermal stability and usually leads to many other desired chemical and physical properties of the hybrid materials [11,12,13,14,15]

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