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One-Pot Synthesis of Amine-Functionalized Nano-Silica via Sol-Gel Assisted by Reverse Micelle Microemulsion for Environmental Application
| Content Provider | MDPI |
|---|---|
| Author | Enshirah, Da’Na Al-Arjan, Wafa Shamsan Al-Saeed, Sukainah El-Aassar, Mohamed Ramadan |
| Copyright Year | 2022 |
| Description | Amine modified nano-silica was prepared via a one-pot route and under very mild conditions in water in oil microemulsion with a non-ionic surfactant to study the effect of changing the amount of N-[3-(Trimethoxysilyl)propyl]ethylenediamine (DA) added to the synthesis mixture on the characteristics of the obtained nanocomposite such as morphology, crystallinity, surface charge, particle size, surface area, and accordingly the effect of all of these factors on the efficiency of the nanocomposite for the removal of heavy metal ions, namely zinc, from aqueous solutions. XRD, SEM, TGA, BET, DLS, FTIR, and $pH_{0}$ analysis were performed for samples and the results showed a strong effect for the amount of DA added to the synthesis mixture on the characteristics of the obtained nanocomposites. It was found that increasing the amount of DA added to the synthesis mixture increased the $pH_{0}$, hydrodynamic particle size obtained by dynamic light scattering analysis, and the particle size obtained by SEM. Sample prepared without the addition of DA (SNP) and the samples prepared with 1.5 mL of DA (SNP-1.5DA) showed a better adsorption performance compared to the samples prepared with 0.5 and 1.0 mL of DA (SNP-0.5DA and SNP-1.0DA, respectively). The main factor affecting the adsorption efficiency was found to be the available surface area for each nanocomposite, which was directly related to the degree of crystallinity as obtained by XRD analysis. |
| Starting Page | 947 |
| e-ISSN | 20794991 |
| DOI | 10.3390/nano12060947 |
| Journal | Nanomaterials |
| Issue Number | 6 |
| Volume Number | 12 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-03-13 |
| Access Restriction | Open |
| Subject Keyword | Nanomaterials Spectroscopy Nanocomposite Microemulsion Heavy Metals Reverse Micelle Nano-silica One-pot Synthesis |
| Content Type | Text |
| Resource Type | Article |
