Efficient Separation of Oil/Water by a Biodegradable and Superhydrophobic Composite Based on Loofah and Rice Straw

Membrane filtration is one of the preferred choices for petroleum wastewater disposal due to its simplicity and low energy consumption. In this paper, a biodegradable superhydrophobic membrane based on loofah and rice straw (LF-RS) was prepared and modified with dodecyltriethoxysilane to improve its...

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Bibliographic Details
Published in:Membranes (Basel) 2024-11, Vol.14 (11), p.243
Main Authors: Souare, Mamadou, Dong, Changqing, Xing, Tong, Zhang, Junjiao, Hu, Xiaoying
Format: Article
Language:English
Subjects:
Biodegradability
Biodegradation
Biomass
Cellulose
Cellulose esters
Cellulose nitrate
Chloride
Contact angle
Efficiency
Energy consumption
Environmental impact
Ethanol
Fabrication
Fourier transforms
Hot pressing
Hydrophobic surfaces
Hydrophobicity
loofah
Mechanical properties
Membrane filtration
Membranes
Methylene blue
oil/water separation
Petroleum industry wastewaters
Pollutant removal
Polyvinylidene fluoride
Potassium
Rice straw
Separation
Simulation
Straw
superhydrophobic
Tensile strength
Wastewater
Wastewater disposal
Water
Water purification
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Summary:Membrane filtration is one of the preferred choices for petroleum wastewater disposal due to its simplicity and low energy consumption. In this paper, a biodegradable superhydrophobic membrane based on loofah and rice straw (LF-RS) was prepared and modified with dodecyltriethoxysilane to improve its stability, morphology, and performance. The membrane showed an efficiency of 99.06% for oil/water separation with an average water flux of 2057.37 Lm h and a tensile strength of 11.19 MPa. The tensile strength of the LF-RS membrane was 322.47% higher than that of the PVDF membrane and 126.58% higher than that of the commercially available nitrocellulose membrane. Through molecular simulations, we showed a 96.3% reduction in interaction energy between water and membrane post-modification, which is beneficial for increasing the contact angle and separation performance. This study provides an option for the large-scale, cost-effective fabrication of eco-friendly membranes for pollutant removal.
ISSN:2077-0375
2077-0375
DOI:10.3390/membranes14110243