A facile strategy toward 3D hydrophobic composite resin network decorated with biological ellipsoidal structure rapeseed flower carbon for enhanced oils and organic solvents selective absorption

Rong, Jian; Qiu, Fengxian; Zhang, Tao; Zhang, Xiaoying; Zhu, Yao; Xu, Jicheng; Yang, Dongya; Dai, Yutang

doi:10.1016/j.cej.2017.04.049

Cited by 73 publications

(25 citation statements)

References 38 publications

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“…To study the mechanism of the adsorption kinetics, the pseudo‐first‐order kinetic model (PFOKM) and pseudo‐second‐order kinetic model (PSOKM) were employed to describe the adsorption kinetics of Li(I) and Rb(I) on DIMFs and NIMFs. The equations of PFOKM and PSOKM are given as follows:

Q_{t} = Q_{e} - Q_{e} e^{- k_{1} t}

Q_{t} = \frac{k_{2} Q_{e}^{2} t}{1 + k_{2} Q_{e} t}

where Q e (mg·g −1 ) and Q t (mg·g −1 ) are the adsorption capacities at time t and at adsorption equilibrium, respectively; k 1 (L·min −1 ) and k 2 (g·mg −1 min −1 ) are the rate constants of PFOKM and PSOKM, respectively. According to the Equations and , the initial adsorption rate h (mg g −1 min −1 ) and half equilibrium time t 1/2 (min) of PSOKM were also calculated …”

Section: Resultsmentioning

confidence: 99%

Calix[4]arenes functionalized dual‐imprinted mesoporous film for the simultaneous selective recovery of lithium and rubidium

Wang

Yang

et al. 2018

Applied Organom Chemis

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Calixarenes have been drawing tremendous interest due to their special structure, superior properties and numerous applications. In this work, a novel adsorbent material, calix[4]arenes functionalized dual‐imprinted mesoporous film (DIMFs) for the simultaneous selective recovery of Li(I) and Rb(I), was prepared via surface ionic imprinting. Compared with ordinary adsorbent materials, the synthesis process of the films used a cheap bio‐template and did not require extra steps but significantly enhances adsorption properties. The morphology and structure of prepared DIMFs were characterized by scanning electron microscopy, transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT‐IR) and nitrogen adsorption–desorption measurements. Adsorption parameters (pH and temperature), adsorption kinetics and adsorption isotherms of the DIMFs were investigated by adsorption experiments. This novel adsorbent has inorganic–organic hybrid frameworks, high specific surface area and uniform pore size. The Langmuir and Freundlich isotherms, pseudo‐first‐order and pseudo‐second‐order kinetics of DIMFs were investigated; suggesting that the adsorption data well fits the Langmuir isotherm model, and the adsorption kinetics can be described by the pseudo‐second‐order kinetic model. In addition, dual‐imprinted mesoporous film exhibited superior selectivity for Li(I) and Rb(I). Cycle test demonstrated an outstanding of reusability, which appreciating their potential for industrial application.

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Q_{t} = Q_{e} - Q_{e} e^{- k_{1} t}

Q_{t} = \frac{k_{2} Q_{e}^{2} t}{1 + k_{2} Q_{e} t}

Section: Resultsmentioning

confidence: 99%

Calix[4]arenes functionalized dual‐imprinted mesoporous film for the simultaneous selective recovery of lithium and rubidium

Wang

Yang

et al. 2018

Applied Organom Chemis

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“…To quantitate the degradation rate, the reaction kinetics of RhB photodegradation catalyzed by the as‐prepared photocatalysts were described using a pseudo‐first‐order model:

ln ((), \frac{C_{0}}{C}) = italickt

where C and C 0 are RhB concentration at time t (min) and t = 0, respectively, and k (min −1 ) is the apparent reaction rate constant. Figure b presents a comparison of rate constants of as‐prepared samples.…”

Section: Resultsmentioning

confidence: 99%

Facile preparation of Ag/Ag₂WO₄/g‐C₃N₄ ternary plasmonic photocatalyst and its visible‐light photocatalytic activity

Jiang

Zhu

Qiu

et al. 2018

Applied Organom Chemis

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Introducing plasmonic metals into semiconductor materials has been proven to be an attractive strategy for enhancing photocatalytic activity in the visible region. In this work, a novel and efficient Ag/Ag2WO4/g‐C3N4 (AACN) ternary plasmonic photocatalyst was successfully synthesized using a facile one‐step in situ hydrothermal method. The composition, structure, morphology and optical absorption properties of AACN were investigated using X‐ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and UV–visible diffuse reflectance spectroscopy, respectively. Photocatalytic performance of AACN was evaluated via rhodamine B and tetracycline degradation. The results indicated that AACN had excellent photocatalytic performance for rhodamine B degradation with a rate constant of 0.0125 min−1, which was higher than those of Ag2WO4 and Ag/Ag2WO4. Characterization and photocatalytic tests showed that the strong coupling effect between the Ag/Ag2WO4 nanoparticles and the exfoliated ultrathin g‐C3N4 nanosheets was superior for visible‐light responsivity and reduced the recombination rate of photogenerated electrons and holes. A proposed mechanism is also discussed according to the band energy structure and the experimental results.

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“…A porous polymeric composite is considered as an effective adsorption material because it is easy to prepare and to recycle, it has a satisfactory adsorption capacity and a good oil selectivity after opportune tuning of hydrophobic and hydrophilic chemical structure of the surface [ 8 , 9 , 10 , 11 ]. To date, several polymer grades have been employed as oil adsorbents, such as foams [ 12 , 13 ], resins [ 14 , 15 , 16 , 17 ], sponges [ 18 ], and aerogels [ 19 , 20 ]. Amongst the different polymer matrices, polyurethane foams have recently attracted great attention for oil/water separation processes [ 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Polyurethane Foams Loaded with Carbon Nanofibers for Oil Spill Recovery: Mechanical Properties under Fatigue Conditions and Selective Absorption in Oil/Water Mixtures

et al. 2021

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Marine pollution due to spillage of hydrocarbons represents a well-known current environmental problem. In order to recover the otherwise wasted oils and to prevent pollution damage, polyurethane foams are considered suitable materials for their ability to separate oils from sea-water and for their reusability. In this work we studied polyurethane foams filled with carbon nanofibers, in varying amounts, aimed at enhancing the selectivity of the material towards the oils and at improving the mechanical durability of the foam. Polyurethane-based foams were experimentally characterized by morphological, surface, and mechanical analyses (optical microscopy observation, contact angle measurement, absorption test according to ASTM F726-99 standard and compression fatigue tests according to ISO 24999 standard). Results indicated an increase in hydrophobic behavior and a good oleophilic character of the composite sponges besides an improved selective absorption of the foam toward oils in mixed water/oil media. The optimal filler amount was found to be around 1 wt% for the homogeneous distribution inside the polymeric foam. Finally, the fatigue test results showed an improvement of the mechanical properties of the foam with the growing carbon filler amount.

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A facile strategy toward 3D hydrophobic composite resin network decorated with biological ellipsoidal structure rapeseed flower carbon for enhanced oils and organic solvents selective absorption

Cited by 73 publications

References 38 publications

Calix[4]arenes functionalized dual‐imprinted mesoporous film for the simultaneous selective recovery of lithium and rubidium

Calix[4]arenes functionalized dual‐imprinted mesoporous film for the simultaneous selective recovery of lithium and rubidium

Facile preparation of Ag/Ag₂WO₄/g‐C₃N₄ ternary plasmonic photocatalyst and its visible‐light photocatalytic activity

Polyurethane Foams Loaded with Carbon Nanofibers for Oil Spill Recovery: Mechanical Properties under Fatigue Conditions and Selective Absorption in Oil/Water Mixtures

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A facile strategy toward 3D hydrophobic composite resin network decorated with biological ellipsoidal structure rapeseed flower carbon for enhanced oils and organic solvents selective absorption

Cited by 73 publications

References 38 publications

Calix[4]arenes functionalized dual‐imprinted mesoporous film for the simultaneous selective recovery of lithium and rubidium

Calix[4]arenes functionalized dual‐imprinted mesoporous film for the simultaneous selective recovery of lithium and rubidium

Facile preparation of Ag/Ag2WO4/g‐C3N4 ternary plasmonic photocatalyst and its visible‐light photocatalytic activity

Polyurethane Foams Loaded with Carbon Nanofibers for Oil Spill Recovery: Mechanical Properties under Fatigue Conditions and Selective Absorption in Oil/Water Mixtures

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Product

Resources

About

Facile preparation of Ag/Ag₂WO₄/g‐C₃N₄ ternary plasmonic photocatalyst and its visible‐light photocatalytic activity