Bioinspired polydopamine particles-assisted construction of superhydrophobic surfaces for oil/water separation

Shang, Bin; Wang, Yanbing; Peng, Bo; Deng, Ziwei

doi:10.1016/j.jcis.2016.07.081

Cited by 105 publications

(62 citation statements)

References 51 publications

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“…The separation efficiency was calculated by the passage of 30 mL of various solvents through these membranes under gravity and their comparison with the passage of distilled water (Figure ). The absorption behavior was monitored with toluene as an organic solvent tinted with Sudan Blue‐III dye . The PEGDA‐derived membrane exhibited the highest contact angle among the membranes; hence, it showed the best efficiency among all of the organic solvents, in particular, those with CHCl 3 ; this resulted in 100% passage within 30 min.…”

Section: Resultsmentioning

confidence: 99%

“…The absorption behavior was monitored with toluene as an organic solvent tinted with Sudan Blue-III dye. 25,26 The PEGDA-derived membrane exhibited the highest contact angle among the membranes; hence, it showed the best efficiency among all of the organic solvents, in particular, those with CHCl 3 ; this resulted in 100% passage within 30 min. The passages of toluene and n-hexane were also checked and were found to be faster than in both the HEA-PEGDA-and HEMA-PEGDA-derived membranes, as shown in Figure 6, whereas no water passage was observed, even after 50 min.…”

Section: Membrane Permeabilitymentioning

confidence: 99%

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Template‐assisted hydrophobic porous silica membrane: A purifier sieve for organic solvents

Maitlo

Ali

Shehzad

et al. 2017

J of Applied Polymer Sci

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Self‐supporting, interconnected, porous inorganic (silicon/carbon) membranes were obtained by the calcination of composite membranes at 900 °C with a porous polymer template obtained by binary‐phase solid‐state photopolymerization at −60 °C with acrylate monomers followed by chemical vapor deposition. The physicochemical properties of all of the membranes were characterized by scanning electron microscopy, energy‐dispersive spectroscopy (EDS), Fourier transform infrared (FTIR) spectroscopy, X‐ray powder diffraction (XRD), thermogravimetric analysis (TGA), and the measurement of water contact angles, water uptake, and percentage of porosity. The membranes showed contact angles ranging from 127 to 130 ± 0.5°, which were close to those of superhydrophobicity. The EDS, FTIR spectroscopy, XRD, and TGA results confirmed the formation of the Si–C composite structure after calcination and an increase in the thermal stability. The polymer and composite membranes were found to be hydrophilic, whereas Si–C was hydrophobic. The poly(ethylene glycol) diacrylate derived Si–C membrane showed a good absorption efficiency for tinted toluene from water compared to the others. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45822.

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Section: Resultsmentioning

confidence: 99%

Section: Membrane Permeabilitymentioning

confidence: 99%

Template‐assisted hydrophobic porous silica membrane: A purifier sieve for organic solvents

Maitlo

Ali

Shehzad

et al. 2017

J of Applied Polymer Sci

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“…Besides Tris-HCl buffer solution, the polymerization processes and paths of dopamine and its catecholic derivatives in other buffer solutions or media 38 such as phosphate buffer solution, NaOH, ammonia-mediated solution (NH 3 ÁH 2 O), ethanol-mediated solution (EtOH), 44 and ethanol-ammonia solution (EtOH-NH 3 ÁH 2 O) were also explored. 45 Zhao's group confirmed that ethanol can significantly slow down the polymerization rate of dopamine and its catecholic derivatives that formed a homogeneous surface, which were harmful to superhydrophobicity. 44 Whereas, Lu et al, 46 developed a simple and versatile method for preparing monodisperse and sizecontrolled PDA nanoparticles at alkaline conditions, in which the pH of solutions were tuned by ethanol-ammonia ratio.…”

Section: Construction Of Hierarchically Structured Surfacementioning

confidence: 99%

“…Both C w and C V were superior to those of reported research. 45 More importantly, the recyclability and recoverability of SMS were evaluated through 50 cycles of absorption-squeezing tests of n-hexance, dichloromethane, and pump oil. As shown in Figure 5(d), the absorption capacities were all maintained above 90%, which indicated the recovered sponges could be reused for oil-water separation for many cycles.…”

Section: Oils/organic Solvents Absorption Performancementioning

confidence: 99%

Hierarchical superhydrophobic surfaces for oil–water separation via a gradient of ammonia content controlling of dopamine oxidative self‐polymerization

Wen

Lei

Chen

et al. 2019

J of Applied Polymer Sci

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Superhydrophobic three-dimensional porous materials have been considering as one of the most promising candidate absorbents for removal and collection of oil spills or organic contaminants from water. In this work, we report a novel and straightforward method for construction of hierarchical superhydrophobic surfaces on the commercial melamine sponge by controlling of the dopamine oxidative selfpolymerization via a gradient of ammonia content. The surface roughness of the sponge was enhanced by the deposited polydopamine coatings whose surfaces exhibited different morphologies at solutions of varied ethanol-ammonia ratios. Thereafter the low-surface free energy moieties were decorated on the surfaces by utilizing a secondary modification platform of polydopamine. Correspondingly, the obtained superhydrophobic melamine sponge achieved a water contact angle of 162.6 AE 1. Furthermore, the superhydrophobic sponge exhibited excellent absorption performances and extraordinary recyclabilities toward a variety of oils and organic solvents. These findings presented in this study offer an effective and versatile approach for oil spills and organic solvents containment removal and environmental remediation in more fundamental and practical fields.

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“…The subsequent nanoparticle‐decoration used widely from others to make the particle surface rough therefore was unnecessary and replaced by tuning the specific synthetic parameters of polydopamine. More specifically, during the polydopamine coating, the adjustment of pH and temperature of the solution allowed the formation of polydopamine layers onto various substrates with controllable nano‐roughness. The superhydrophobicity of the surfaces can thus be tuned after the coating with low surface energy chemicals.…”

Section: Applicationsmentioning

confidence: 99%

Polydopamine Based Colloidal Materials: Synthesis and Applications

Deng

Shang

Peng

2017

The Chemical Record

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Polydopamine is a synthetic analogue of natural melanin (eumelanin) produced from oxidative polymerization of dopamine. Owing to its strong adhesion ability, versatile chemical reactivity, biocompatibility and biodegradation, polydopamine is commonly applied as a versatile linker to synthesize colloidal materials with diverse structures, unique physicochemical properties and tunable functions, which allow for a broad scope of applications including biomedicine, sensing, catalysis, environment and energy. In this personal account, we discuss first about the different synthetic approaches of polydopamine, as well as its polymerization mechanism, and then with a comprehensive overview of recent progress in the synthesis and applications of polydopamine-based colloidal materials. Finally, we summarize this personal account with future perspectives.

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Bioinspired polydopamine particles-assisted construction of superhydrophobic surfaces for oil/water separation

Cited by 105 publications

References 51 publications

Template‐assisted hydrophobic porous silica membrane: A purifier sieve for organic solvents

Template‐assisted hydrophobic porous silica membrane: A purifier sieve for organic solvents

Hierarchical superhydrophobic surfaces for oil–water separation via a gradient of ammonia content controlling of dopamine oxidative self‐polymerization

Polydopamine Based Colloidal Materials: Synthesis and Applications

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