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Facile Fabrication of Magnetic Poly(Vinyl Alcohol)/Activated Carbon Composite Gel for Adsorptive Removal of Dyes
| Content Provider | MDPI |
|---|---|
| Author | Wen, Tao Huang, Baotao Zhou, Li |
| Copyright Year | 2022 |
| Description | Activated carbon (AC) has been widely utilized for the adsorption of pollutants from water. However, it is difficult to recycle the AC after adsorption. In this paper, we report a facile one-pot approach to fabricate magnetic poly(vinyl alcohol)/AC composite gel (mPVA/AC CG) by dropwise addition of an aqueous mixture of PVA, AC and iron ions into the ammonia solution. The obtained mPVA/AC CG after freeze-drying shows porous microstructure and favorable magnetic properties. The utilization of mPVA/AC CG for adsorptive removal of methylene blue (MB) and methyl orange (MO) dyes from water was investigated. The mPVA/AC CG not only exhibited good adsorption performance for both MB and MO dyes but also could be readily recycled using a magnet after adsorption. The adsorption process was well described by the pseudo-second-order kinetic model and the Langmuir isotherm model. Considering the simple fabrication process, good adsorption performance and favorable magnetic separation capability, this work provides a viable strategy for combining the features of AC and magnetic gel for fabrication of applicable magnetic adsorbent. |
| Starting Page | 55 |
| e-ISSN | 2504477X |
| DOI | 10.3390/jcs6020055 |
| Journal | Journal of Composites Science |
| Issue Number | 2 |
| Volume Number | 6 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-02-11 |
| Access Restriction | Open |
| Subject Keyword | Journal of Composites Science Environmental Engineering Environmental Sciences Magnetic Gel Activated Carbon Adsorption Dye Methylene Blue Methyl Orange |
| Content Type | Text |
| Resource Type | Article |
