Modification of ultrafine silk fibroin powder for efficient oil/water separation

Advanced Powder Technology, Journal Year: 2025, Volume and Issue: 36(3), P. 104817 - 104817

Published: Feb. 8, 2025

Language: Английский

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Preparation and Mechanism of EP-HMTA-SiO2 Nanocomposite Polymer Gel for Enhancing Oil Recovery

Processes, Journal Year: 2025, Volume and Issue: 13(3), P. 596 - 596

Published: Feb. 20, 2025

During oilfield production, organic substances such as asphaltenes and resins present in crude oil are prone to adsorb onto the surfaces of reservoir rocks. This adsorption process can lead conversion hydrophilic rock into more oleophilic interfaces, which turn reduces permeability porosity reservoir, ultimately affecting overall recovery efficiency. Consequently, targeted modification wettability presents a promising strategy for enhancing rates. In this study, polymer layer comprising large molecular side chains hydroxyl groups was synthesized on surface nano-SiO2 enhance thermal stability polymer. Additionally, were employed improve core material reduce interfacial tension. The polymers characterized using techniques FTIR TG, results revealed that modified SiO2 exhibited superior performance reducing both tension contact angle when compared SiO2. Injection 0.4 wt% EP-HMTA-SiO2 solution resulted an increase rates by 16.4% 13.2% medium- low-permeability cores, respectively.

Language: Английский

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In Situ Polymerization of Long Alkyl Chain Functional Groups Enhances the Oil–Water Separation Performance of Porous Organic Polymers

Molecules, Journal Year: 2025, Volume and Issue: 30(9), P. 1925 - 1925

Published: April 26, 2025

The preparation of superhydrophobic functional materials is great significance for applications in oil pollution control. However, the synthesized by traditional post-modification methods usually suffer from problems limited active sites, uneven distribution, and susceptibility surface structure to external factors, which may significantly affect their properties. In this study, porous organic polymer LNU-32 was successfully prepared via situ polymerization with introduction green, low-surface-energy, long-alkyl-chain groups into pores, formed a "brush-like" on pore effectively enhanced its hydrophobicity. material exhibits excellent superhydrophobicity, water contact angle more than 151°. addition, polyester fabric has an oil-water separation efficiency 90%. adsorption capacity dimethicone also reached 7.37 times own weight. study shows that good application potential field separation, especially treatment oily wastewater spills.

Language: Английский

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Impact of SiO₂ doping on the structure and oil–water separation properties of a PVDF membrane: insights from molecular dynamics simulation

RSC Advances, Journal Year: 2024, Volume and Issue: 14(33), P. 23910 - 23920

Published: Jan. 1, 2024

Separation mechanism of SiO 2 -doped PVDF (polyvinylidene fluoride) membrane for oil–water mixtures.

Language: Английский

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Eco-friendly, high-hydrophobic polybutylene succinate foam for oil-water separation

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: unknown, P. 114265 - 114265

Published: Sept. 1, 2024

Language: Английский

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Multifunctional Superhydrophobic Coating Constructed from Rosin-Based Polymer and Nano-Boehmite Particles for Oil-Water Separation, Anti-Icing and Flame Retardancy

Published: Jan. 1, 2024

Language: Английский

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Interfacial modification strategies enhance the non-wettability of bismuth molybdate and its application in solar evaporation and environmental governance

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: unknown, P. 131202 - 131202

Published: Dec. 1, 2024

Language: Английский

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