دورية أكاديمية
Cost-effective synthesis of magnetic graphene oxide nanocomposite from waste battery for the removal of arsenic from aqueous solutions: Adsorption mechanism with DFT calculation
| العنوان: | Cost-effective synthesis of magnetic graphene oxide nanocomposite from waste battery for the removal of arsenic from aqueous solutions: Adsorption mechanism with DFT calculation |
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| المؤلفون: | Md. Sanwar Hossain, Sabina Yasmin, Md Humayun Kabir |
| المصدر: | Journal of Saudi Chemical Society, Vol 28, Iss 3, Pp 101873- (2024) |
| بيانات النشر: | Elsevier, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Chemistry |
| مصطلحات موضوعية: | Graphene oxide, Adsorption, Arsenic, Waste battery, Magnetic separation, Density function theory, Chemistry, QD1-999 |
| الوصف: | In this study, magnetic graphene oxide (MGO-Fe3O4) nanocomposite was prepared by co-precipitating of FeCl3.6H2O and FeCl2.4H2O on waste battery-derived graphene oxide and used as an adsorbent for the efficient removal of As(III) from aqueous solutions. The prepared nanocomposite was characterized by Fourier transformed infrared spectroscopy, field emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, zeta potential, and a vibrating sample magnetometer. These characterizations revealed that spare like Fe3O4 nanoparticles (10.5 nm) were decorated on graphene oxide nanosheets and showed excellent saturation magnetization (89.73 emu/g). The adsorption of As(III) by MGO-Fe3O4 was optimized by analyzing various parameters. Experiments showed that 98 % of As(III) was removed at neutral pH in a just 20 min, even though the adsorbent dose was only 0.14 g/L. The adsorption kinetic and isotherm were best fitted with the pseudo-second order kinetic and Frendlich isotherm model. The maximum adsorption capacity (qmax) was found to be 50.2 mg/g at room temperature. Thermodynamic studies showed that the As(III) adsorption process was spontaneous and exothermic in nature. The enhanced adsorption capacity and magnetic properties of MGO-Fe3O4 are crucial in the drinking water treatment process due to the easy magnetic separation of MGO-Fe3O4 from aqueous solution after the adsorption process. Density Functional Theory (DFT) was also used to investigate the interaction between MGO-Fe3O4 and As(III), which further suggested that MGO-Fe3O4 and As(III) mostly interact with each other through surface complexation and hydrogen bonding. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1319-6103 54182972 |
| العلاقة: | http://www.sciencedirect.com/science/article/pii/S1319610324000681Test; https://doaj.org/toc/1319-6103Test |
| DOI: | 10.1016/j.jscs.2024.101873 |
| الوصول الحر: | https://doaj.org/article/f1af43a46bc54182972bf58f01fd0b4cTest |
| رقم الانضمام: | edsdoj.f1af43a46bc54182972bf58f01fd0b4c |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 13196103 54182972 |
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| DOI: | 10.1016/j.jscs.2024.101873 |