Removal of Oil From Water Surface by Novel Composite NSM‐g‐P(MMA‐co‐BA) Super Oil‐Absorption Resin

Abstract

NSM‐g‐P(MMA‐co‐BA) resin with super oil‐absorbent capability was prepared by grafting co‐polymerization using Nitraria seeds meal as filler, methyl‐meth‐acrylate (MMA) and butyl‐acrylate (BA) as monomers, N,N′‐methylene‐bis‐acrylamide (MBA) as crosslinker and peroxide‐benzoyl (BPO) as initiator. The structure of obtained products was analyzed using Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM), respectively. The oil absorbency, reusability, oil‐retention capacity, thermodynamics, and the removal of oil from the surface of 0.9 wt% NaCl solutions were examined further. The results showed that NSM‐g‐P(MMA‐co‐BA) can absorb lubrication up to 29.6 times of its weight, 24.3 times for colza oil, 22.7 times for diesel, and 21 times for gasoline. The exhausted NSM‐g‐P(MMA‐co‐BA) can be recollected and recovered through extraction or drying approach. More importantly, the oil sorption capacity of recovered NSM‐g‐P(MMA‐co‐BA) only has a slight decline after six sorption cycles. The thermodynamic studies indicated that adsorption procedure with complex physical and chemical sorption is spontaneous and exothermic. In general, the present composite resins have exhibited potential applications in cleanup of oil spills because of their good hydrophobicity, lipophilicity, and excellent network structure. Also, the findings of this study might provide a convenient and economic method for fast and selective removal of oil from surface of wastewater. POLYM. COMPOS., 39:1051–1063, 2018. © 2016 Society of Plastics Engineers

An oil-absorbing resin with a simple polymerization system with benzyl methacrylate as a functional monomer

“…The R 2 of the first-order sorption process showed a tiny gap with second-order sorption. Nonetheless, because of the limitation of the first-order sorption model, it was more suitable for describing the uncomplicated physical absorption or chemical absorption [ 41 ]. The sorption mechanism in the initial stage of PAMs was dominated by van der Waals forces and capillary dint, and the molecular diffusion dominated the sorption process [ 42 , 43 ].…”

Oil spills adsorption and cleanup by polymeric materials: A review

“…Hai et al 127 reported a novel polymer composite resin material to treat oil spills. They attempted to synthesize a lipophilic composite resin by grafting copolymerization of methyl methacrylate and butyl acrylate on the surface of nitraria seeds meal (NSM), an important economic crop belonging to the zygophyllaceous (Figure 17A).…”

“…(B) Oil absorbency of NSM‐ g ‐P(MMA‐ co ‐BA) resin in mixture of 0.9 wt% NaCl solutions and oil as a function of immersion time. (C) Removal of colza oil from 1 wt% NaCl solution using NSM‐ g ‐(PMMA‐co‐BA) Reprinted with copyright permission from Wiley online library 127 …”

Fabrication of three‐dimensional porous superhydrophobic composites for immiscible and emulsified oil/water mixture separation

“…[3][4][5] Materials with special wettability have been developed based on bionic strategies and can separate oil/water mixtures via filtration. [6][7][8][9][10][11][12][13][14][15][16] In addition to immiscible oil/water mixtures, the separation of oil/water emulsions is also challenging, especially surfactantstabilized emulsions. [17][18][19] This is because the emulsion droplets with the action of surfactant exhibit high stability and complex structure, which makes it difficult to achieve effective aggregation of emulsion droplets.…”