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Preparation of Special Wettability Quartz Sand Filter Media and Its Synchronous Oil/Water Mixture Separation and Dye Adsorption
| Content Provider | MDPI |
|---|---|
| Author | Yinglong, Che Hanyue, Guo Tingting, Zhang Bigui, Wei |
| Copyright Year | 2022 |
| Description | To efficiently and synchronously separate oil/water mixture and adsorbed dyes, corn-cob-covered quartz sand (CCQS) filter media with underwater superoleophobic qualities and underoil extremely hydrophobic qualities were fabricated by grafting a corn cob onto the surface of quartz sand using the dip-coating technique. Due to the introduction of more hydrogen bonds on the quartz surface and the construction of a rough structure, the underwater oil contact angles and underoil water contact angles of the CCQS were 150.3~154.6° and 132.2°~154.6°, respectively. A separator for oil/water separation was devised, and the CCQS-filled separator could synchronously separate the oil/water mixture and adsorb malachite green. The separation efficiency of the oil/water mixture was over 99.93%, the removal rate of MG was 99.73%, and the adsorption capacity was 7.28 mg/g. The CCQS could keep its wettability steady under challenging environmental circumstances. Therefore, the study offered a novel concept for the successful oil/water mixture separation, while synchronously adsorbing dye. |
| Starting Page | 9860 |
| e-ISSN | 20711050 |
| DOI | 10.3390/su14169860 |
| Journal | Sustainability |
| Issue Number | 16 |
| Volume Number | 14 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-08-10 |
| Access Restriction | Open |
| Subject Keyword | Sustainability Petroleum Engineering Quartz Sand Filter Media Underwater Superoleophobic Extremely Hydrophobic Underoil Dye Adsorption Oil/water Separation |
| Content Type | Text |
| Resource Type | Article |
