Novel Superhydrophobic Sand and Polyurethane Sponge Coated with Silica/Modified Asphaltene Nanoparticles for Rapid Oil Spill Cleanup

Atta, Ayman M.; Abdullah, Mahmood M. S.; Al‐Lohedan, Hamad A.; Saber, Osama

doi:10.3390/nano9020187

Cited by 21 publications

(14 citation statements)

References 43 publications

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“…Nanooxides such as fumed silica (nanosilica) are important industrial materials used in both unmodified [ 1 , 2 , 3 , 4 , 5 ] and modified functionalized [ 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ] states. Various silanes and siloxanes are widely used to modify silica particles [ 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 ]. Modified silica materials with alkyl chains are more appropriate to prepare various composites with polymers as compared with unmodified silica materials [ 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

Surface Chemistry of Nanohybrids with Fumed Silica Functionalized by Polydimethylsiloxane/Dimethyl Carbonate Studied Using 1H, 13C, and 29Si Solid-State NMR Spectroscopy

et al. 2021

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The investigation of molecular interactions between a silica surface and organic/inorganic polymers is crucial for deeper understanding of the dominant mechanisms of surface functionalization. In this work, attachment of various depolymerized polydimethylsiloxanes (PDMS) of different chain lengths, affected by dimethyl carbonate (DMC), to silica nanoparticles pretreated at different temperatures has been studied using 29Si, 1H, and 13C solid-state NMR spectroscopy. The results show that grafting of different modifier blends onto a preheated silica surface depends strongly on the specific surface area (SSA) linked to the silica nanoparticle size distributions affecting all textural characteristics. The pretreatment at 400 °C results in a greater degree of the modification of (i) A-150 (SSA = 150 m2/g) by PDMS-10/DMC and PDMS‑1000/DMC blends; (ii) A‑200 by PDMS-10/DMC and PDMS-100/DMC blends; and (iii) A-300 by PDMS-100/DMC and PDMS-1000/DMC blends. The spectral features observed using solid-state NMR spectroscopy suggest that the main surface products of the reactions of various depolymerized PDMS with pretreated nanosilica particles are the (CH3)3SiO-[(CH3)2SiO-]x fragments. The reactions occur with the siloxane bond breakage by DMC and replacing surface hydroxyls. Changes in the chemical shifts and line widths, as shown by solid-state NMR, provide novel information on the whole structure of functionalized nanosilica particles. This study highlights the major role of solid-state NMR spectroscopy for comprehensive characterization of functionalized solid surfaces.

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Section: Introductionmentioning

confidence: 99%

Surface Chemistry of Nanohybrids with Fumed Silica Functionalized by Polydimethylsiloxane/Dimethyl Carbonate Studied Using 1H, 13C, and 29Si Solid-State NMR Spectroscopy

et al. 2021

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“…Marine oil spills can diffuse extensively the sea surface within several hours, leading to very serious consequences [5]. Billions of dollars are spent preventing pollution, but risk cannot be completely eliminated [6]. Technologies that can detect and monitor oil spills are, therefore, very important for rapid emergency response and contamination control.…”

Section: Introductionmentioning

confidence: 99%

Oil Spill Monitoring of Shipborne Radar Image Features Using SVM and Local Adaptive Threshold

Wang

Cui

et al. 2020

Algorithms

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In the case of marine accidents, monitoring marine oil spills can provide an important basis for identifying liabilities and assessing the damage. Shipborne radar can ensure large-scale, real-time monitoring, in all weather, with high-resolution. It therefore has the potential for broad applications in oil spill monitoring. Considering the original gray-scale image from the shipborne radar acquired in the case of the Dalian 7.16 oil spill accident, a complete oil spill detection method is proposed. Firstly, the co-frequency interferences and speckles in the original image are eliminated by preprocessing. Secondly, the wave information is classified using a support vector machine (SVM), and the effective wave monitoring area is generated according to the gray distribution matrix. Finally, oil spills are detected by a local adaptive threshold and displayed on an electronic chart based on geographic information system (GIS). The results show that the SVM can extract the effective wave information from the original shipborne radar image, and the local adaptive threshold method has strong applicability for oil film segmentation. This method can provide a technical basis for real-time cleaning and liability determination in oil spill accidents.

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“…At the same time, due to their structural features, they can be used to obtain a large amount of valuable materials. Nowadays, it is known that ion exchangers, sorbents, catalysts and various carbon materials can be obtained based on asphaltenes [1][2][3][4][5][6]. Asphaltenes are also actively used for filling polymers and obtaining various composites [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Polyolefin Composition Materials Filled with Oil Asphaltenes and their Functionalized Derivatives

Borisova¹,

Yakubov²,

Minzagirova³

et al. 2020

Journal of Siberian Federal University. Chemistry

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In this work, composite materials based on LLDPE and asphaltenes, their functionalized derivatives, and an industrial residue of solvent deasphalting of tar were investigated. Physicomechanical, thermal and electret properties of composite materials were studied. The behavior of the compositions during melting and crystallization was studied by DSC, and crystallinity degree was calculated. The dispersion of oil fillers in a polymer matrix was investigated using SEM

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Novel Superhydrophobic Sand and Polyurethane Sponge Coated with Silica/Modified Asphaltene Nanoparticles for Rapid Oil Spill Cleanup

Cited by 21 publications

References 43 publications

Surface Chemistry of Nanohybrids with Fumed Silica Functionalized by Polydimethylsiloxane/Dimethyl Carbonate Studied Using 1H, 13C, and 29Si Solid-State NMR Spectroscopy

Surface Chemistry of Nanohybrids with Fumed Silica Functionalized by Polydimethylsiloxane/Dimethyl Carbonate Studied Using 1H, 13C, and 29Si Solid-State NMR Spectroscopy

Oil Spill Monitoring of Shipborne Radar Image Features Using SVM and Local Adaptive Threshold

Polyolefin Composition Materials Filled with Oil Asphaltenes and their Functionalized Derivatives

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