2018
DOI: 10.15587/2312-8372.2018.140355
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Preparation of porous silica nanocomposites from montmorillonite using sol-gel approach

Abstract: Об'єктом дослiдження є монтморилонiт, який завдяки своїм властивостям i будовi проявляє високi сорбцiйнi характеристики. Однак суттєвою перешкодою його використання в промислових технологiях водоочищення є схильнiсть монтморилонiту самочинно диспергуватись в водних розчинах на елементарнi структурнi пакети i утворювати стiйкi зависi. Це призводить до виникнення складнощiв при роздiленнi твердої i рiдкої фаз пiсля проведення процесу сорбцiї. Авторами був використаний золь-гель метод синтезу нанокомпозитних мате… Show more

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“…Mixing ethanol with water modulates the water solubility, density, and viscosity, as well as the stability of polymers, drugs, and proteins by modifying hydrophobic interactions . However, Mt exhibits less swelling and poor dispersibility in ethanol and ethanol/water mixtures due to the low strength of the interaction between the dispersion medium and the Mt particles. , Moreover, ethanol has lower polarity, lower dielectric and weaker hydrogen bonding compared with water, which together hinder the solvent from entering the interlayer of Mt and thereby affects the solvation of any molecules within the interlayer of Mt . The arrangements of Mt layers into long flexible arrangements of overlapping face–face associations (band-type networks) were shown to contract to form thicker particle aggregates as the ethanol content in ethanol/water increased. , Pujala et al.…”
Section: Introductionmentioning
confidence: 99%
“…Mixing ethanol with water modulates the water solubility, density, and viscosity, as well as the stability of polymers, drugs, and proteins by modifying hydrophobic interactions . However, Mt exhibits less swelling and poor dispersibility in ethanol and ethanol/water mixtures due to the low strength of the interaction between the dispersion medium and the Mt particles. , Moreover, ethanol has lower polarity, lower dielectric and weaker hydrogen bonding compared with water, which together hinder the solvent from entering the interlayer of Mt and thereby affects the solvation of any molecules within the interlayer of Mt . The arrangements of Mt layers into long flexible arrangements of overlapping face–face associations (band-type networks) were shown to contract to form thicker particle aggregates as the ethanol content in ethanol/water increased. , Pujala et al.…”
Section: Introductionmentioning
confidence: 99%