Preparation of Special Wettability Quartz Sand Filter Media and Its Synchronous Oil/Water Mixture Separation and Dye Adsorption

To efficiently and synchronously separate oil/water mixture adsorbed dyes, corn-cob-covered quartz sand (CCQS) filter media with underwater superoleophobic qualities underoil extremely hydrophobic were fabricated by grafting a corn cob onto the surface of using dip-coating technique. Due to introduction more hydrogen bonds on construction rough structure, oil contact angles water CCQS 150.3~154.6° 132.2°~154.6°, respectively. A separator for separation was devised, CCQS-filled could adsorb malachite green. The efficiency over 99.93%, removal rate MG 99.73%, adsorption capacity 7.28 mg/g. keep its wettability steady under challenging environmental circumstances. Therefore, study offered novel concept successful separation, while adsorbing dye.