Multi-energies assisted and all-weather recovery of crude oil by superhydrophobic melamine sponge

Guan, Yi; Wang, Zhining; Bao, Mutai; Chen, Xiuping; Dong, Limei; Shen, Yun; Li, Yiming

doi:10.1016/j.jhazmat.2022.130131

Cited by 41 publications

(12 citation statements)

References 55 publications

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“…Generally, porous materials combined with heating methods and specific wettability are considered the most effective strategy. 57,58 In this section, the strategies of improving the adsorption performance and separation selectivity to realize the efficient separation of highly viscous crude oil/water mixtures will be comprehensively and systematically reviewed. Specifically, through regulating the surface wettability performance, the selectivity and efficient separation of highly viscous crude oil/water mixtures by adsorption materials are realized, such as SHB/SOL and SHL/UWSOB adsorbent materials.…”

Section: Adsorption Separation For Highly Viscous Crude Oil/water Mix...mentioning

confidence: 99%

Advances in special wettable materials for adsorption separation of high-viscosity crude oil/water mixtures

et al. 2023

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Section: Adsorption Separation For Highly Viscous Crude Oil/water Mix...mentioning

confidence: 99%

Advances in special wettable materials for adsorption separation of high-viscosity crude oil/water mixtures

et al. 2023

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“…Crude oil is a kind of indispensable resource for the sustainable development of human society . However, with the rapid development of global economy, the watery oil generated from industrial production processes and accidental oil spills cause severe economic losses. , In the past half century, many techniques have been developed for separating various oil–water mixtures, such as oil skimming, emulsion breaking, , adsorption, , etc. However, due to the high stability and tiny size (<20 μm in diameter) of the droplets, effective treatment of oil–water emulsions still remains a great challenge .…”

Section: Introductionmentioning

confidence: 99%

Joule Heating-Assisted Crude Oil Purification by a Poly(pyrrole)-Modified Microfibril Cellulose Membrane

Chen,

Zhang,

Guan

et al. 2024

ACS Appl. Mater. Interfaces

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Using membrane materials to purify viscous watery oil from industrial production processes and accidental oil spills is of great importance but still challenging. Based on the excellent electrical conductivity and electric-thermal conversion of poly(pyrrole) (PPy), a hydrophobic PPy-modified micro-fibrillated cellulose membrane (P-CP) was successfully prepared. The size of the P-CP membrane can be customized to meet specific requirements. In this research, the membrane diameter is capable of reaching 24 cm. By applying a voltage ranging from 0 to 12 V, the surface temperature of the P-CP membrane can be elevated to roughly 120 °C. After 10 cycles of heating and cooling under 12 V voltage, the electric-thermal curves, surface hydrophobicity, and pore structure of P-CP membrane can remain stable, which suggests remarkable electric-thermal stability and reliability despite prolonged operation. The P-CP membrane shows good linearity between voltage and current (R 2 = 0.997) and easy temperature control from room temperature to ∼120 °C at low supply voltage (0−12 V). Under the condition of 12 V power supply and selfgravity, the separation flux of the P-CP membrane for water-in-oil (W/O) emulsions (kerosene, diesel) is 2−3 times higher than that at room temperature, and the separation efficiency is also improved. Importantly, the P-CP membrane shows excellent separation performance for high viscosity water-in-crude oil emulsions, with a separation flux of 40 L m −2 h −1 by gravity. Compared to the situation without electricity, the separation flux of water-in-crude oil emulsion has increased four-fold. The joule heating of the P-CP membrane expands its service time and application scenarios, demonstrating its great application prospects in actual viscous oil− water emulsion separation.

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“…The advancement of material civilization is inseparable from the fossil energy production, industrial manufacturing, engineering construction, home decoration, and other related sectors. − At the same time, there are also some problems such as marine oil pollution resulting from oil leakage from tankers or vessels, improper discharge of oily wastewater in industrial and daily activities, − as well as corrosion of metallic materials, − which not only cause significant economic losses and pose potential risks to people’s lives but also inflict substantial damage on the environment and greatly affected the Earth’s ecosystem. ,,− Therefore, it is significant to seek effective methods for the efficient separation of oil–water mixtures and improvement of anticorrosion of metals.…”

Section: Introductionmentioning

confidence: 99%

Facile and Rapid Fabrication of (trifluoropropyl) Silsesquioxanes/Ethyl Cyanoacrylate-Based Hybrid Superhydrophobic Coatings for Oil–Water Separation and Metal Anticorrosion

Zhang,

Ge,

Liu

2024

ACS Appl. Eng. Mater.

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In this paper, fluorosilsesquioxanes (F-SQs) were first synthesized by hydrolysis condensation of (3,3,3-trifluoropropyl) trimethoxysilane. Then, F-SQs were blended with ethyl cyanoacrylate (ECA) to prepare a hybrid matrix material that was coated on the surface of sponge or copper foil to rapidly form hydrophobic coatings by anionic polymerization of ECA, which were environmentally friendly, efficient, and low cost. The resulting low surface energy materials could be used for oil−water separation and metal corrosion protection. The structure composition and properties characterization of the surface of coated polyurethane (PU) sponges and copper foils were analyzed by Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray photoelectron spectroscopy, water contact angle, and electrochemical tests. Coated PU sponges with excellent mechanical and chemical stability exhibit superhydrophobic properties and can efficiently separate oil and water mixtures with an efficiency over 99%. Compared with bare copper foil, the coated copper foil exhibited lower corrosion current (I corr ) and higher impedance modulus (|Z| 0.01 Hz ) after immersing in a 3.5 wt % NaCl solution for 24 h, offering excellent anticorrosion properties. Moreover, when the exposure time of the coating in salt solution was extended to 21 days, the |Z| 0.01 Hz of the coating remained approximately 10 times higher than that of the Cu matrix, demonstrating exceptional long-term corrosion resistance. This simple and environmentally friendly route to fabricate hydrophobic materials makes it possible for large-scale oil−water separation and metal corrosion protection.

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Multi-energies assisted and all-weather recovery of crude oil by superhydrophobic melamine sponge

Cited by 41 publications

References 55 publications

Advances in special wettable materials for adsorption separation of high-viscosity crude oil/water mixtures

Advances in special wettable materials for adsorption separation of high-viscosity crude oil/water mixtures

Joule Heating-Assisted Crude Oil Purification by a Poly(pyrrole)-Modified Microfibril Cellulose Membrane

Facile and Rapid Fabrication of (trifluoropropyl) Silsesquioxanes/Ethyl Cyanoacrylate-Based Hybrid Superhydrophobic Coatings for Oil–Water Separation and Metal Anticorrosion

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