Epoxy composites coating with Fe3O4 decorated graphene oxide: Modified bio-inspired surface chemistry, synergistic effect and improved anti-corrosion performance

Zhan, Yingqing; Zhang, Jieming; Wan, Xinyi; Long, Zhihang; He, Shuangjiang; He, Yi

doi:10.1016/j.apsusc.2017.12.095

Cited by 166 publications

(38 citation statements)

References 51 publications

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“…Among many magnetic nanoparticles, magnetic magnetite (Fe 3 O 4 ) nanospheres with unique properties have been widely studied in catalysis, ferrofluids, magnetic storage, separation, target drug delivery, etc. [13][14][15] Specially, magnetite nanospheres as adsorbents have exhibited promising applications in wastewater treatment because of their high surface area, non-toxicity, chemical stability and easy magnetic manipulation. [16][17][18] However, the active adsorption sites will be reduced in water owing to the agglomeration of Fe 3 O 4 , thus reducing their adsorption capacity.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical Fe₃O₄‐derived organic/inorganic hybrids constructed by modified bio‐inspired functionalization: efficient adsorbents for water‐soluble methylene blue and mechanism

Zhan

Zhao

Wan

et al. 2019

J of Chemical Tech & Biotech

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Background The development of efficient and sustainable adsorbents is still a challenge for dye removal in practical applications. Here a method to prepare hierarchical Fe3O4‐derived organic/inorganic hybrid adsorbents for methylene blue removal is demonstrated. Typically, two different structured magnetic nanoparticles were synthesized through solvothermal route and chemical co‐precipitation (named as S‐Fe3O4 and C‐Fe3O4 respectively), which were further functionalized by a novel modified mussel‐inspired method with dopamine (DA) and (3‐aminopropyl)triethoxysilane (KH550), thus obtaining core‐shell Fe3O4/poly(DA + KH550) adsorbents. Results The effects of microstructure, morphology and surface functionalization on the adsorption performance of core‐shell Fe3O4 adsorbents were systematically investigated, thus achieving target structurally optimized core‐shell Fe3O4 adsorbents. Especially, the maximum adsorption capacity of core‐shell S‐Fe3O4/poly(DA + KH550) adsorbent reached 400.00 mg g−1 because of high specific surface area and abundant active adsorption sites. In addition, the adsorption kinetics and adsorption isotherm fitted a pseudo‐second‐order model and Langmuir model respectively. Conclusion The recycling process of adsorbent is sustainable in economy and energy by applying an external permanent magnet. In summary, the high adsorption capacity, easy separation and excellent reusability of S‐Fe3O4/poly(DA + KH550) core‐shell adsorbents make them promising for dye effluent removal. © 2019 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

Hierarchical Fe₃O₄‐derived organic/inorganic hybrids constructed by modified bio‐inspired functionalization: efficient adsorbents for water‐soluble methylene blue and mechanism

Zhan

Zhao

Wan

et al. 2019

J of Chemical Tech & Biotech

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“…In this work, a high flux and stable h‐BN/PEN nanofibrous composite membrane was developed by assembly of modified h‐BN onto the PEN nanofibrous substrate, as shown in Figure . In order to achieve this target, the hydrophilic properties of hexagonal boron nitride nanosheets were improved by dopamine mussel‐inspired modification (h‐BN‐PDA) . Then, the h‐BN‐PDA nanosheets were directly assembled onto a PEN nanofibrous supporting layer through vacuum filtration, which resulted in a skin layer.…”

Section: Introductionmentioning

confidence: 99%

Construction of superhydrophilic/underwater superoleophobic polydopamine‐modified h‐BN/poly(arylene ether nitrile) composite membrane for stable oil‐water emulsions separation

Zhang

Zhan

et al. 2020

Polymers for Advanced Techs

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Oil/water emulsion separation in harsh environments remains a big challenge. Herein, a double layered nanofibrous composite membrane was developed by assembly of polydopamine-modified hexagonal boron nitride (h-BN-PDA) onto a poly(arylene ether nitrile) (PEN) nanofibrous mat. Owing to the synergistic effect of a h-BN-PDA skin layer and a PEN nanofibrous mat supporting layer, as-prepared composite membrane exhibited high thermal stability, corrosion resistance, and superhydrophilic/underwater superoleophobic property. Consequently, the PEN composite membrane showed good antifouling performance and a high rejection ratio (>99.0%) for various oil/water emulsions. After 10 cycles, the separation flux of PEN composite membrane still reached 588.1 L/m 2 h under the operating pressure of 0.04 MPa. Furthermore, the PEN composite membrane could still achieve high separation efficiency and high flux in high-temperature (65 C) and strongly corrosive conditions (pH = 1-13). Therefore, the stable and efficient h-BN-PDA/PEN composite membrane showed potential application for treating oily wastewater in harsh environments. K E Y W O R D S hexagonal boron nitride, oil/water emulsion separation, poly(arylene ether nitrile), stability, superhydrophilic/underwater superoleophobic property 1 | INTRODUCTION Nowadays, the water pollution from oil spills and chemical industries seriously threatens the ecological balance and human health. 1,2Therefore, a variety of methods including gravity separation, 3 centrifugal separation, 4 adsorption separation, 5,6 and biological demulsification 7 are developed for oil/water separation. However, these traditional oil/water treatment technologies have the disadvantages of complicated operation process, low separation efficiency, and secondary pollution. 8 Moreover, they cannot effectively separate oil/water emulsion with a dispersed droplets' size less than 20 μm. 9,10 Recently, membrane separation technology has become a very important technology in the transformation of industrial technology. 11,12 In particular, the electrospun nanofibrous (ENF) membrane is widely applied for oil/water emulsion separation because of its high porosity, high specific surface area, stability, and adjustable function. [13][14][15][16] In order to achieve efficient oil/water separation and overcome the problem of membrane fouling, two kinds of super-wetting membrane materials are constructed: super-hydrophobic/underwater

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“…Over the year prodigious scale of effort has been made to augment the barrier performance and corrosion protection efficiency of the epoxy coatings through the incorporation of various additives and/or anticorrosive pigments . The nanostructure filler such as Fe 2 O 3 , ZnO, TiO 2 , and CuO have been widely used to improve the anti‐corrosion performance of epoxy composites coating .…”

Section: Introductionmentioning

confidence: 99%

“…Though, the alluring properties have imputed graphene as a prominent filler, but the intricacy in ensuring mono or a few layers subsist of graphene layer in polymer matrix has impeded its complete transfer of those properties. Decoration of inorganic nanoparticles over graphene structure has been one of the approaches to restrain the graphene layers from being restacked . Among the inorganic nanoparticles, magnetic Fe 3 O 4 has been profusely explored for being less toxic, easy to prepare, low cost and excellent anticorrosive properties.…”

Section: Introductionmentioning

confidence: 99%

“…Among the inorganic nanoparticles, magnetic Fe 3 O 4 has been profusely explored for being less toxic, easy to prepare, low cost and excellent anticorrosive properties. Moreover, as compared with other inorganic nanoparticles, Fe 3 O 4 being the product of steel corrosion is considered to have some positive advantages for augmenting the anticorrosion performance of epoxy based coating . Although, seminal success has been accomplished with this strategy of decorating inorganic nanoparticles over graphene surface for anti‐corrosion application, still there exists some loophole to address.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Fe₃O₄‐Decorated N‐Doped Reduced Graphene Oxide Nanohybrid on the Anticorrosion Performance of Epoxy Composite Coating

et al. 2019

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The present study explores the synergistic effect of Fe 3 O 4 and heteroatom doped reduced graphene oxide (rGO) nanohybrid on anti-corrosion performance of epoxy composite coating. In this connection, Fe 3 O 4 nanoparticles were decorated over nitrogen doped rGO (Fe 3 O 4 -NRG) and characterized by Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy, X-ray diffraction (XRD), X-ray Photoelectron spectroscopy (XPS), and Thermogravimetric analysis (TGA). This approach to modulating the surface properties of graphene and hence the interaction with polymer matrix were quite distinct from traditional surface functionlization or decoration in a sense that the doped nitrogen atom facilitate the growth of Fe 3 O 4 particles and at the same time augmented the interaction of rGO with polymer matrix. The prepared nanohybrid was dispersed in epoxy matrix through mechanical mixing and coated over mild steel surface via spin coating technique. The potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) study revealed superior anti-corrosion performance of Fe 3 O 4 -NRG/epoxy coating in 3.5 wt% NaCl solution. The corrosion inhibition was found to improve by ∼ 98.5% with 0.5 wt% loading of Fe 3 O 4 -NRG. We believe that this simple solvent free approach to prepare composite coating can be exploit for practical application and thus deserves special attention..

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Epoxy composites coating with Fe3O4 decorated graphene oxide: Modified bio-inspired surface chemistry, synergistic effect and improved anti-corrosion performance

Cited by 166 publications

References 51 publications

Hierarchical Fe₃O₄‐derived organic/inorganic hybrids constructed by modified bio‐inspired functionalization: efficient adsorbents for water‐soluble methylene blue and mechanism

Hierarchical Fe₃O₄‐derived organic/inorganic hybrids constructed by modified bio‐inspired functionalization: efficient adsorbents for water‐soluble methylene blue and mechanism

Construction of superhydrophilic/underwater superoleophobic polydopamine‐modified h‐BN/poly(arylene ether nitrile) composite membrane for stable oil‐water emulsions separation

Effect of Fe₃O₄‐Decorated N‐Doped Reduced Graphene Oxide Nanohybrid on the Anticorrosion Performance of Epoxy Composite Coating

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Epoxy composites coating with Fe3O4 decorated graphene oxide: Modified bio-inspired surface chemistry, synergistic effect and improved anti-corrosion performance

Cited by 166 publications

References 51 publications

Hierarchical Fe3O4‐derived organic/inorganic hybrids constructed by modified bio‐inspired functionalization: efficient adsorbents for water‐soluble methylene blue and mechanism

Hierarchical Fe3O4‐derived organic/inorganic hybrids constructed by modified bio‐inspired functionalization: efficient adsorbents for water‐soluble methylene blue and mechanism

Construction of superhydrophilic/underwater superoleophobic polydopamine‐modified h‐BN/poly(arylene ether nitrile) composite membrane for stable oil‐water emulsions separation

Effect of Fe3O4‐Decorated N‐Doped Reduced Graphene Oxide Nanohybrid on the Anticorrosion Performance of Epoxy Composite Coating

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Hierarchical Fe₃O₄‐derived organic/inorganic hybrids constructed by modified bio‐inspired functionalization: efficient adsorbents for water‐soluble methylene blue and mechanism

Hierarchical Fe₃O₄‐derived organic/inorganic hybrids constructed by modified bio‐inspired functionalization: efficient adsorbents for water‐soluble methylene blue and mechanism

Effect of Fe₃O₄‐Decorated N‐Doped Reduced Graphene Oxide Nanohybrid on the Anticorrosion Performance of Epoxy Composite Coating