Recent progress in bio-based aerogel absorbents for oil/water separation

Yang, Wenjie; Yuen, Anthony; Li, Ao; Lin, Bo; Chen, Timothy Bo Yuan; Lu, Hongdian; Yeoh, Guan Heng

doi:10.1007/s10570-019-02559-x

Cited by 114 publications

(47 citation statements)

References 173 publications

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“…Physisorption is an ideal way to deal with leaked organic solvents considering that its a simple and facile procedure, saving energy, and low cost. [ 8 ] On this basis, developing materials with outstanding adsorptive capacity is the key to improving the practical value. [ 9–11 ] Generally, this requires massive pores formed inside the material and the specific surface area was aggrandized.…”

Section: Introductionmentioning

confidence: 99%

Facile Fabrication of Amphiphilic and Asymmetric Films with Excellent Deformability for Efficient and Stable Adsorption Applications

Wang

Zhao

2021

Macro Materials & Eng

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In this study, a facile way to prepare amphiphilic and asymmetric films with excellent mechanical properties for efficient and stable adsorption applications is reported. Non‐solvent induced phase separation technology is developed to fabricate porous asymmetric poly(ether‐block‐amide) composite films. These films have a unique structure composed of a solid surface, a microporous surface, and hierarchical porous core, hence exhibiting prominent mechanical properties with an elongation at break up to 317% and mechanical resilience. Before and after 50‐times cyclic stretching deformations, they still maintain intact porous structure, and their wetting angles of upper and lower surfaces to both water and cyclohexane are almost constant. Moreover, these films show excellent uptake for cyclohexane and water, and cyclic large deformations have little influence on the performance. It only takes 3 s to absorb 4 times of the weight of cyclohexane, while 1.8 times of water can be loaded within 134 s.

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Section: Introductionmentioning

confidence: 99%

Facile Fabrication of Amphiphilic and Asymmetric Films with Excellent Deformability for Efficient and Stable Adsorption Applications

Wang

Zhao

2021

Macro Materials & Eng

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“…One of the most frequently investigated aerogels that meet most of the above-mentioned requirements are cellulose nano bril (CNF) aerogels (Yang et al 2019;Ahankari et al 2021;Chen et al 2021). CNF is typically produced by high-energy homogenization of wood pulp, in which process the delamination or brillation of CNF is often assisted by TEMPO oxidation or other chemical treatments (Isogai et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Metal Coordination Bonds Crosslinked Polydopamine/Cellulose Nanofibril Composite Aerogels with Significantly Improved Thermal Stability, Flame Resistance, and Thermal Insulation Properties

Han

Huang

Wang

et al. 2021

Preprint

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Cellulose nanofibril (CNF) aerogels have attracted great interests in recent years due to the low cost, sustainability and biocompatibility of raw CNFs. However, the poor thermal stability and flammable feature of CNF aerogels have limited their wider applications. In this paper, polydopamine/CNF composite aerogels with good comprehensive properties are fabricated by modification of CNF with polydopamine and metal coordination bonds crosslinking. The microstructure and properties of composite aerogels are thoroughly characterized by a variety of tests. It is found that the microstructure of aerogels are more regular and the compressive strength of aerogels are enhanced by the incorporation of polydopamine and Fe3+ crosslinking. Importantly, the thermal stability and flame resistance of aerogels are significantly improved, which permit the application of composite aerogels in high-temperature thermal insulation. In addition, the reversible characteristic of metal coordination bonds allows the water induced healing of fractured composite aerogels. This study is expected to provide information for future development of green and high-performance aerogels.

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“…Whereas silica aerogels have been thoroughly investigated and correlations between preparation, structure and properties have been well established, bio-aerogels are recent materials, for which such correlations only begin to be deduced. Several excellent reviews have been published recently that underline the relevance of bio-aerogel research, including those focusing on biomedical applications [19], food applications [20], aerogel particles [21], water purification [22], and thermal insulation [23]. Even though the materials for bio-aerogels may be obtained from renewable sources, bio-aerogel preparation often consumes significant amounts of resources (e.g., solvents, non-solvents, CO2) and energy.…”

Section: Introductionmentioning

confidence: 99%

Biorefinery Approach for Aerogels

et al. 2020

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According to the International Energy Agency, biorefinery is “the sustainable processing of biomass into a spectrum of marketable bio-based products (chemicals, materials) and bioenergy (fuels, power, heat)”. In this review, we survey how the biorefinery approach can be applied to highly porous and nanostructured materials, namely aerogels. Historically, aerogels were first developed using inorganic matter. Subsequently, synthetic polymers were also employed. At the beginning of the 21st century, new aerogels were created based on biomass. Which sources of biomass can be used to make aerogels and how? This review answers these questions, paying special attention to bio-aerogels’ environmental and biomedical applications. The article is a result of fruitful exchanges in the frame of the European project COST Action “CA 18125 AERoGELS: Advanced Engineering and Research of aeroGels for Environment and Life Sciences”.

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Recent progress in bio-based aerogel absorbents for oil/water separation

Cited by 114 publications

References 173 publications

Facile Fabrication of Amphiphilic and Asymmetric Films with Excellent Deformability for Efficient and Stable Adsorption Applications

Facile Fabrication of Amphiphilic and Asymmetric Films with Excellent Deformability for Efficient and Stable Adsorption Applications

Metal Coordination Bonds Crosslinked Polydopamine/Cellulose Nanofibril Composite Aerogels with Significantly Improved Thermal Stability, Flame Resistance, and Thermal Insulation Properties

Biorefinery Approach for Aerogels

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