Development of highly hydrophobic and superoleophilic fluoro organothiol-coated carbonized melamine sponge/rGO composite absorbent material for the efficient and selective absorption of oily substances from aqueous environments

Duman O., Dıker C., Tunç S.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, cilt.9, sa.2, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 9 Sayı: 2
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1016/j.jece.2021.105093
  • Dergi Adı: JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, CAB Abstracts, Chemical Abstracts Core, Compendex, INSPEC, Veterinary Science Database
  • Anahtar Kelimeler: Hydrophobic absorbent material, Oily pollutant and organic solvent, Selective separation, Oil/water emulsion, OIL/WATER SEPARATION, ORGANIC-SOLVENTS, GRAPHENE OXIDE, PVDF MEMBRANE, WATER, AEROGEL, FACILE, FABRICATION, ROBUST, FOAM
  • Akdeniz Üniversitesi Adresli: Evet

Özet

The removal of various oils, petroleum products and organic solvents from water has a great importance for environmental protection. In this study, highly hydrophobic and superoleophilic fluoro organothiol-coated carbonized melamine sponge/rGO composite absorbent material (CMS/rGO/PFDT) material was prepared as a new absorbent for the cleanup of oil spills and selective separation of oil-water mixtures. The results of contact angle, scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and Raman measurements proved that the preparation of new absorbent material was successfully performed. CMS/ rGO/PFDT displayed excellent hydrophobicity with a high-water contact angle of 143.2 degrees. and superoleophilicity with an oil-contact angle of 0 degrees. This absorbent was unsinkable in water and could absorb the hydrophobic organic contaminants up to 55 times of its own weight. CMS/rGO/PFDT could effectively and selectively absorb the oily substances from olive oil-water and gasoline-water emulsions and achieved the continuous oil-water separation with the assistance of a vacuum pump. The developed CMS/rGO/PFDT material may be a potential absorbent in the absorptive removal of oily substances and organic solvents from oily wastewater and in the separation of oil-water mixture.