Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 461, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2023.132674
Keywords
Hydrophobic organogel; Adsorption; Gel coating; Wettability; Oil/water separation; Viscosity crude oil spills
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Organogels have shown wide application prospects as adsorbent materials in the field of oil-water separation, with the ability to effectively treat oily wastewater in complex environments and high adsorption capacity and recyclability.
Frequent offshore oil leakage accidents and large quantities of oily-wastewater produced in industry and daily life bring huge challenges to global water purification. The adaptability and stability of organogels as adsorbent materials have shown wide application prospects in the field of oil-water separation. Herein, the organogels displayed stable hydrophobic/lipophilic properties with high absorption ability (1200 wt./wt%), efficient sorption of multiple emulsions (>99.0%), and good reusability. More importantly, the organogels were successfully assembled with 2D/3D substrates to achieve excellent sorption capacity (102.5 g/g) and recycling performance (50 cycles). The gel-carbon black assembled on MS (GCB-MS) sorbent with excellent photothermal conversion performance, and can rapidly heat the surface to 70.4 degrees C under 1.0 sunlight radiation (1.0 kW/m(2)) and achieved an ultra-high sorption capacity of about 103 g/g for viscous crude oil. Meanwhile, the GCB-MS was combined with a pump to build continuous oil spill cleaning equipment to achieve a super-fast cleanup rate of 6.83 g/min. The developed hydrophobic organogels had been expanded unprecedentedly to realize the comprehensive treatment of oily-wastewater in complex environments, including layered oils, emulsions, and viscous crude oil spill, which provided an effective path for the comprehensive treatment of oily wastewater in complex environments.
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