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المؤلفAl-Saad K.
المؤلفIssa A.A.
المؤلفIdoudi S.
المؤلفShomar B.
المؤلفAl-Ghouti M.A.
المؤلفAl-Hashimi N.
المؤلفEl-Azazy M.
تاريخ الإتاحة2022-05-31T19:01:15Z
تاريخ النشر2020
اسم المنشورMolecules
المصدرScopus
المعرّفhttp://dx.doi.org/10.3390/molecules25204827
معرّف المصادر الموحدhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85093666200&doi=http://dx.doi.org/10.3390%2fmolecules25204827&partnerID=40&md5=53be61eb0765329bf33dab82245c1612
معرّف المصادر الموحدhttp://hdl.handle.net/10576/31779
الملخصIn the current study, a smart approach for synthesizing trimethyl ethoxysilane–decorated magnetic-core silica-nanoparticles (TMS-mcSNPs) and its effectiveness as nanosorbents have been exploited. While the magnetite core was synthesized using the modified Mössbauer method, Stöber method was employed to coat the magnetic particles. The objective of this work is to maximize the magnetic properties and to minimize both particle size (PS) and particle size distribution (PSD). Using a full factorial design (2k-FFD), the influences of four factors on the coating process was assessed by optimizing the three responses (magnetic properties, PS, and PSD). These four factors were: (1) concentration of tetraethyl-orthosilicate (TEOS); (2) concentration of ammonia; (3) dose of magnetite (Fe3O4); and (4) addition mode. Magnetic properties were calculated as the attraction weight. Scanning electron microscopy (SEM) was used to determine PS, and standard deviation (±SD) was calculated to determine the PSD. Composite desirability function (D) was used to consolidate the multiple responses into a single performance characteristic. Pareto chart of standardized effects together with analysis of variance (ANOVA) at 95.0 confidence interval (CI) were used to determine statistically significant variable(s). Trimethyl ethoxysilane–functionalized mcSNPs were further applied as nanosorbents for magnetic solid phase extraction (TMS-MSPE) of organophosphorus and carbamate pesticides.
اللغةen
الناشرMDPI AG
الموضوعFull factorial design (FFD)
Magnetic nanocomposites
Magnetic solid phase extraction
Multiple responses
Pesticide removal
Trimethyl-functionalized
العنوانSmart Synthesis of Trimethyl Ethoxysilane (TMS) Functionalized Core–Shell Magnetic Nanosorbents Fe3O4@SiO2: Process Optimization and Application for Extraction of Pesticides
النوعArticle
رقم العدد20
رقم المجلد25
dc.accessType Abstract Only


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