التفاصيل البيبلوغرافية
| العنوان: |
Adsorption of Cationic Dyes on a Magnetic 3D Spongin Scaffold with Nano-Sized Fe3O4 Cores |
| المؤلفون: |
Maryam Akbari, Hessam Jafari, Mojtaba Rostami, Gholam Reza Mahdavinia, Ali Sobhani nasab, Dmitry Tsurkan, Iaroslav Petrenko, Mohammad Reza Ganjali, Mehdi Rahimi-Nasrabadi, Hermann Ehrlich |
| المصدر: |
Marine Drugs, Vol 19, Iss 9, p 512 (2021) |
| بيانات النشر: |
MDPI AG, 2021. |
| سنة النشر: |
2021 |
| المجموعة: |
LCC:Biology (General) |
| مصطلحات موضوعية: |
marine biopolymers, 3D spongin scaffold, Fe3O4 nanoparticles, methylene blue, crystal violet, adsorption mechanism, Biology (General), QH301-705.5 |
| الوصف: |
The renewable, proteinaceous, marine biopolymer spongin is yet the focus of modern research. The preparation of a magnetic three-dimensional (3D) spongin scaffold with nano-sized Fe3O4 cores is reported here for the first time. The formation of this magnetic spongin–Fe3O4 composite was characterized by X-ray diffraction (XRD), thermogravimetric analysis (TGA), differential thermal analysis (DTA) (TGA-DTA), vibrating sample magnetometer (VSM), Fourier-transform infrared spectroscopy (FTIR), and zeta potential analyses. Field emission scanning electron microscopy (FE-SEM) confirmed the formation of well-dispersed spherical nanoparticles tightly bound to the spongin scaffold. The magnetic spongin–Fe3O4 composite showed significant removal efficiency for two cationic dyes (i.e., crystal violet (CV) and methylene blue (MB)). Adsorption experiments revealed that the prepared material is a fast, high-capacity (77 mg/g), yet selective adsorbent for MB. This behavior was attributed to the creation of strong electrostatic interactions between the spongin–Fe3O4 and MB or CV, which was reflected by adsorption mechanism evaluations. The adsorption of MB and CV was found to be a function of pH, with maximum removal performance being observed over a wide pH range (pH = 5.5–11). In this work, we combined Fe3O4 nanoparticles and spongin scaffold properties into one unique composite, named magnetic spongin scaffold, in our attempt to create a sustainable absorbent for organic wastewater treatment. The appropriative mechanism of adsorption of the cationic dyes on a magnetic 3D spongin scaffold is proposed. Removal of organic dyes and other contaminants is essential to ensure healthy water and prevent various diseases. On the other hand, in many cases, dyes are used as models to demonstrate the adsorption properties of nanostructures. Due to the good absorption properties of magnetic spongin, it can be proposed as a green and uncomplicated adsorbent for the removal of different organic contaminants and, furthermore, as a carrier in drug delivery applications. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
1660-3397 |
| Relation: |
https://www.mdpi.com/1660-3397/19/9/512; https://doaj.org/toc/1660-3397 |
| DOI: |
10.3390/md19090512 |
| URL الوصول: |
https://doaj.org/article/ca1a6651d4ea40ccb125c5fa080256ff |
| رقم الانضمام: |
edsdoj.1a6651d4ea40ccb125c5fa080256ff |
| قاعدة البيانات: |
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