Adsorptive removal of oil spill from sea water surface using magnetic wood sawdust as a novel nano-composite synthesized via microwave approach

Abstract

Water pollution by oil is a serious environmental problem. Developing new generation of benign adsorbents satisfying several criteria required for real practical application is of great need. This work introduces an effort in this direction, by utilizing a facile synthesis of wood sawdust coated magnetite nanoparticles functionalized stearic acid (WSD@Fe 3 O 4 NPs/SA) as a novel nano composite along with its precursor WSD@Fe 3 O 4 NPs. SA was covalently bonded to the precursor by amide bond formation via the interaction with the silylating agent 3-aminopropyltrimethoxysilane (3-APTS). This mode of binding is more stronger than the conventional ester bond. Fourier transform infrared (FT-IR), X-ray powder diffraction (XRD), Scanning electron microscope (SEM) and Transmittance electron microscope (TEM) were employed for characterization and follow up the synthesis process. Application of the newly synthesized magnetic nano composite adsorbent under optimized parameters of contact time (min) and composite dosage (g) reveal high removal capacity values (g/g) evaluated to be 28.32 g/g, 5 min and 0.1 g for used motor oil removal and 41.22 g/g, 10 min and 0.1 g for crude oil. The high removal efficiency exhibited by WSD@Fe 3 O 4 NPs/SA was mainly argued to the long hydrocarbon chain of SA moiety and additional (CH 2 ) 3 groups incorporated 3-ATPS. Moreover, Analysis of the oil adsorption experimental equilibrium data were well fitted with Freundlish model with correlation coefficients r 2 = 0.9788 and 0.9896 for used motor oil and crude oil, respectively. The kinetic data were correlated using two kinetic models and the results were in harmony with pseudo-second order.

Aquananotechnology: oriented-sawdust waste valorization into magnetic nanocellulosic particles for Synozol Red K-HL sorption prospect

“…Thus, water molecules loaded with dye could be bonded onto the composite, and then, the dye molecules are exchangeable. The significance of cellulosic composite in improving the adsorption uptake is in accordance with previous reports investigated by Shaheen and Emam (2018) and Soliman et al (2020).…”

“…Fe 3 O 4 nanoparticles were mixed with the cellulosicbased SWD prepared material in various wt% proportions from the blend of SWD/magnetite in a proportion marked as SF-1:1, SF-2:1, SF-3:1, SF-5:1 and SF-1:2. Afterwards, the prepared mixture are grinded by mortar of agate then retained in a glass petri dish where it is wetted with drops of distilled water prior to exposed to domestic microwave oven (5 min, 200 watts) to attain a homogeneous brownish colour composite as previously detailed in the literature (Soliman et al 2020). The graphical illustration of the preparation and treatment steps is given in the schematic of Fig.…”

“…However, up to now, adsorption is still signified as a simple and effective technology for eliminating synthetic dyes from aqueous matrix once appropriate adsorbents are applied. Examples of the technique are including dye removal (Ashour et al 2014;Oyewo et al 2020;Thabet et al 2021b; Tony 2021a), heavy metals elimination (Abdou et al 2018;Li et al 2011), oil uptake (Soliman et al 2020;Tony and Lin 2020b;Tony et al 2015) and organic compounds (Tony and Lin 2020a; Yin et al 2020). Hence, researchers' attempts for finding cost-efficient with high yield uptake materials, as adsorbents are still their research burdens.…”

Oil Spill Sorber Based on Extrinsically Magnetizable Porous Geopolymer

“…Polyurethane resins modified with magnetic particles, on the other hand, can remove 10 g of oil from the water per gram of the composite [ 41 ]. Another composite prepared with magnetic wood sawdust presented an oil removal efficiency of 28 g/g [ 42 ]. In turn, a magnetic nanostructured graphene composite was produced for oil removal, and the results showed that the oil removal capability was equal to 53 g/g [ 43 ].…”

Crude oil exploration in Africa: socio-economic implications, environmental impacts, and mitigation strategies

“…Wong et al ( 2020 ) also reported the ability of magnetic graphene oxide composites to serve as demulsifiers in crude oil removal. Wood sawdust-coated magnetite nanoparticles functionalized with stearic acid were demonstrated to effectively remove oil from seawater by adsorption (Soliman et al 2020 ), while Kamgar et al ( 2020 ) functionalized sawdust with Iron oxide nanoparticles also recorded efficient crude oil removal from aqueous solution.…”