Design of tubelike aerogels with macropores from bamboo fungus for fast oil/water separation

Yi, Longfei; Yu, Xia; Tan, Zhangna; Fang, Xiao; Zhao, Lijuan; Wu, Hong; Guo, Shaoyun

doi:10.1016/j.jclepro.2020.121558

Cited by 45 publications

(16 citation statements)

References 39 publications

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“…Because a wider variety of organic solvents/oils were covered in these literature studies, in Table , we only list the organic solvents/oils, for which the absorbent shows the minimum and maximum absorption capacity. The range between these two values is used to evaluate the removal capacities of various reported aerogel materials and SA/GO/SiO 2 -M. It can be found that the organic solvents/oils corresponding to the minimum absorption capacity are of lower density, such as hexane , and gasoline. , On the contrary, the organic solvents/oils corresponding to the maximum one are of higher density, including dichloromethane and carbon tetrachloride . So, both the density of organic solvents/oils and the quality of the aerogel itself greatly influence the values of the absorption capacity.…”

Section: Resultsmentioning

confidence: 99%

Construction of a Superhydrophobic Sodium Alginate Aerogel for Efficient Oil Absorption and Emulsion Separation

Yang

Chen

et al. 2021

Langmuir

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Bio-based aerogels serve as potential materials in separation of oil/water mixtures. Nevertheless, there remain some key challenges, including expensive/toxic organic cross-linkers, unpromising reusability, and poor performance in emulsion separation. Hereby, a novel, robust, and superhydrophobic sodium alginate/graphene oxide/silicon oxide aerogel (SA/GO/SiO 2 -M) was fabricated by simple calcium ion cross-linking self-assembly, freeze-drying, and chemical vapor deposition methods based on the renewable and abundant raw materials. The as-prepared SAbased aerogel possesses high absorbency for varieties of organic solvents and oils. Importantly, it shows high efficiency in the separation of surfactant-stabilized water-in-oil emulsions. SA/GO/SiO 2 -M aerogels display excellent reusability in both absorption and separation because of their good mechanical properties in the air and oil phase, and the mechanism in emulsion separation is discussed. This study shows that SA/GO/SiO 2 -M aerogels are a promising material in treating oil contaminants from different fields.

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Section: Resultsmentioning

confidence: 99%

Construction of a Superhydrophobic Sodium Alginate Aerogel for Efficient Oil Absorption and Emulsion Separation

Yang

Chen

et al. 2021

Langmuir

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“…Yi et al [17] used bamboo fungus to create tubelike aerogels containing macropores (tubelike stipes with a hierarchical porous structure). e aerogel based on biomass was prepared by lyophilization and then treated with pyrolysis.…”

Section: Bamboo Aerogelmentioning

confidence: 99%

“…Utilization of bamboo as a raw material for wastewater treatment has been increasing in recent years. Researchers have developed a variety of adsorbents derived from bamboo, including bamboo-activated carbon [9][10][11], bamboo biochar [12][13][14], and bamboo aerogel [15][16][17] among others.…”

Section: Introductionmentioning

confidence: 99%

A Review on Bamboo as an Adsorbent for Removal of Pollutants for Wastewater Treatment

Lamaming

Saalah

Rajin

et al. 2022

International Journal of Chemical Engineering

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Water and wastewater treatment are very important for obtaining clean and sanitary water as well as protecting the environment from toxic pollutants. Not only enriched with cellulose and carbon but the abundant resources of bamboo also make it suitable to be utilized as an adsorbent. With the right processing technologies and improvements, the potential of bamboo is unlimited. This study review provides knowledge on the use of bamboo-based adsorbents for the removal of contaminants and pollutants in wastewater in the form of activated carbon, biochar, and aerogel. This review highlighted bamboo utilization and its relevance as an adsorbent for wastewater treatment. The technologies for the processing and improvement of bamboo as well as the performance of the bamboo-based adsorbents are also discussed in this study. The adsorption capacity of bamboo has shown improvement with modification and good adsorption capacity achieved with some of the adsorbent being able to be recycled and reused.

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“…Using modi ers, the surface hydrophobization of cellulose aerogels were realized mainly via two different routes, gas phase reaction, and aerogel or hydrosol immersed in liquids containing modi ers. It is noted that most of the plantderived cellulose aerogels were hydrophobic via gas phase reactions [22][23][24], while the reported BC aerogels were often hydrophobic modi ed in liquids containing modi ers. Wang et al [25] prepared a superhydrophobic BC aerogel by immersing BC hydrogel in a modi er solution containing stearic acid, giving the maximum adsorption capacity for soybean oil of 48.2 g/g.…”

Section: Introductionmentioning

confidence: 99%

Recyclable Bacterial Cellulose Aerogel for Oil and Water Separation

Yan

Zhu

et al. 2022

J Polym Environ

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Bacterial cellulose (BC) aerogel has great potential in treating oil spill and organic pollutant. However, its inherent hydrophilicity and poor rigidity limit its practical application and recyclability. In this study, elastically compressible and high oil-absorbing aerogels were developed by freeze-drying aqueous suspensions with appropriate BC concentrations, followed by a chemical vapor deposition of methyltrimethoxysilane with ammonia as catalyst. The modi ed aerogel shows high water contact angle of 142° and enhanced compression resistance. The effect of BC concentration on the adsorption capacity and recyclability of aerogel has been investigated. The results show that the aerogel prepared with 0.3 wt% BC exhibits simultaneously high absorption capacity (121.8-284.1 g/g) and excellent recyclability. Futhermore, the aerogel could also separate chloroform-water mixture by gravity-driven ltration, giving the separation e ciency of 96.7 %. Therefore, this economical green aerogel provides a feasible strategy for solving oil leakage in industry.

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Design of tubelike aerogels with macropores from bamboo fungus for fast oil/water separation

Cited by 45 publications

References 39 publications

Construction of a Superhydrophobic Sodium Alginate Aerogel for Efficient Oil Absorption and Emulsion Separation

Construction of a Superhydrophobic Sodium Alginate Aerogel for Efficient Oil Absorption and Emulsion Separation

A Review on Bamboo as an Adsorbent for Removal of Pollutants for Wastewater Treatment

Recyclable Bacterial Cellulose Aerogel for Oil and Water Separation

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