Attachment of a Hydrophobically Modified Biopolymer at the Oil–Water Interface in the Treatment of Oil Spills

2013 ◽  
Vol 5 (9) ◽  
pp. 3572-3580 ◽  
Author(s):  
Pradeep Venkataraman ◽  
Jingjian Tang ◽  
Etham Frenkel ◽  
Gary L. McPherson ◽  
Jibao He ◽  
...  
Keyword(s):  
Oil Spills ◽  
Water Interface ◽  
Hydrophobically Modified ◽  
Oil Water

Hydrophobically modified sodium humate surfactant: Ultra-low interfacial tension at the oil/water interface

2012 ◽  
Vol 259 ◽  
pp. 774-779 ◽  
Author(s):  
Jianmei Zhang ◽  
Gang Li ◽  
Fang Yang ◽  
Nian Xu ◽  
Hongxian Fan ◽  
...  
Keyword(s):  
Interfacial Tension ◽  
Water Interface ◽  
Sodium Humate ◽  
Hydrophobically Modified ◽  
Low Interfacial Tension ◽  
Oil Water

scholarly journals Hydrophobically Modified Associating Polyacrylamide Solutions: Relaxation Processes and Dilational Properties at the Oil-Water Interface

2004 ◽  
Vol 37 (18) ◽  
pp. 7064-7064 ◽  
Author(s):  
Yi-Yang Wang ◽  
Yu-Hua Dai ◽  
Lu Zhang ◽  
Lan Luo ◽  
Yan-Ping Chu ◽  
...  
Keyword(s):  
Relaxation Processes ◽  
Water Interface ◽  
Hydrophobically Modified ◽  
Oil Water

Hydrophobically Modified Associating Polyacrylamide Solutions:  Relaxation Processes and Dilational Properties at the Oil−Water Interface

2004 ◽  
Vol 37 (8) ◽  
pp. 2930-2937 ◽  
Author(s):  
Yi-Yang Wang ◽  
Yu-Hua Dai ◽  
Lu Zhang ◽  
Lan Luo ◽  
Yan-Ping Chu ◽  
...  
Keyword(s):  
Relaxation Processes ◽  
Water Interface ◽  
Hydrophobically Modified ◽  
Oil Water

Shear interfacial viscoelasticity of native and hydrophobically modified xanthan at oil/water interface

2016 ◽  
Vol 61 ◽  
pp. 887-894 ◽  
Author(s):  
Audrey N. Roy ◽  
Lazhar Benyahia ◽  
Michel Grisel ◽  
Frederic Renou
Keyword(s):  
Water Interface ◽  
Hydrophobically Modified ◽  
Oil Water

Porous materials from cellulose nanocrystal and mxene surfactants at the oil/water interface

2020 ◽  
Author(s):  
Bingqing qian ◽  
Haiqiao Wang ◽  
Dong Wang ◽  
Hao-Bin Zhang ◽  
Jessica Wu ◽  
...  
Keyword(s):  
Porous Materials ◽  
Cellulose Nanocrystal ◽  
Water Interface ◽  
Oil Water

Controlling porosity and density of nanocellulose aerogels for superhydrophobic light materials

TAPPI Journal ◽  
2018 ◽  
Vol 17 (03) ◽  
pp. 145-153 ◽  
Author(s):  
Chengua Yu ◽  
Feng Wang ◽  
Shiyu Fu ◽  
Lucian Lucia
Keyword(s):  
Contact Angle ◽  
Freeze Drying ◽  
Engine Oil ◽  
High Porosity ◽  
Water Mixture ◽  
Waste Engine Oil ◽  
Hydrophobically Modified ◽  
Static Contact ◽  
Oil Water ◽  
Hydrophobic Material

A very low-density oil-absorbing hydrophobic material was fabricated from cellulose nanofiber aerogels–coated silane substances. Nanocellulose aerogels (NCA) superabsorbents were prepared by freeze drying cellulose nanofibril dispersions at 0.2%, 0.5%, 0.8%, 1.0%, and 1.5% w/w. The NCA were hydrophobically modified with methyltrimethoxysilane. The surface morphology and wettability were characterized by scanning electron microscopy and static contact angle. The aerogels displayed an ultralow density (2.0–16.7 mg·cm-3), high porosity (99.9%–98.9%), and superhydrophobicity as evidenced by the contact angle of ~150° that enabled the aerogels to effectively absorb oil from an oil/water mixture. The absorption capacities of hydrophobic nanocellulose aerogels for waste engine oil and olive oil could be up to 140 g·g-1 and 179.1 g·g-1, respectively.

Polarizability and nonpolarizability of oil-water interfaces with relevance to a.c. impendance measurements

1991 ◽  
Vol 56 (1) ◽  
pp. 112-129 ◽  
Author(s):  
Takashi Kakiuchi ◽  
Mitsugi Senda
Keyword(s):  
Charge Transfer ◽  
Numerical Calculation ◽  
Supporting Electrolyte ◽  
Water Interface ◽  
Migration Effect ◽  
Ac Current ◽  
Stationary Interface ◽  
Oil Water ◽  
Anion Transfer

We have estimated the degree of polarizability of a polarized oil-water interface used as a working interface and that of the nonpolarizability of a nonpolarized interface used as a reference oil-water interface from the numerical calculation of dc and ac current vs potential behavior at both interfaces. Theoretical equations of dc and ac currents for simultaneous cation and anion transfer of supporting electrolytes have been derived for the planar stationary interface for reversible and quasi-reversible cases. In the derivation, the migration effect and the coupling of the cation and anion transfer have been incorporated. The transfer of ions constituting a supporting electrolyte contributes to the total admittance of the interface even in the region where the interface may be considered as polarized in dc sense, as pointed out first by Samec et al. (J. Electroanal. Chem. 126, 121 (1981)). Moreover, the reference oil-water interface is not ideally reversible, so that the contribution from this interface to the measured admittance cannot be negligible, unless the area of the reference oil-water interface is much larger than that of the working oil-water interface. The effect of non-ideality of the reference oil-water interface on the determination of double layer capacitances and kinetic parameters of charge transfer at the working oil-water interface has been estimated.

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