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Superhydrophobic polycarbonate blend monolith with micro/nano porous structure for selective oil/water separation.

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Title: Superhydrophobic polycarbonate blend monolith with micro/nano porous structure for selective oil/water separation.
Authors: Wang, Tiecheng1 (AUTHOR), Xing, Linlong1 (AUTHOR), Qu, Muchao2,3 (AUTHOR), Pan, Yamin1 (AUTHOR) yamin.pan@zzu.edu.cn, Liu, Chuntai1 (AUTHOR), Shen, Changyu1 (AUTHOR), Liu, Xianhu1 (AUTHOR) xianhu.liu@zzu.edu.cn
Source: Polymer. Jun2022, Vol. 253, pN.PAG-N.PAG. 1p.
Subjects: Contact angle, Adsorption capacity, Polycarbonates, Phase separation, Porosity, Adsorption (Chemistry)
Abstract: Herein, a porous polycarbonate blend monolith with hierarchical micro-nano structure using fluorine-free and low-cost material via a simple thermally induced phase separation is successfully prepared. The unique micro-nano structure endows the monolith with high porosity (90%) and low density (93 mg/cm3), as well as strong superhydrophobicity (water contact angle of 159°) and superoleophilicity. It shows high saturation adsorption capacity (6.25–10.58 g/g) and rapid adsorption rate (20 s reach adsorption equilibrium). Furthermore, outstanding environmental resistance in a variety of harsh conditions, such as contact angle varies slightly under various pHs (1–14) and the constant adsorption capacity at different temperatures (0–100 °C), is found. Additionally, the monolith displays good recycling performance for at least 10 cycles by simply pumping and evaporating, indicating a good application prospect in the field of practical oil-water separation. [Display omitted] • Superhydrophobic PDMS/PC monolith with hierarchical micro-nano structure is prepared. • Monolith endows the high porosity (90.8%) and low density (93 mg/cm3). • It has outstanding environmental resistance and constant adsorption capacity at 0–100 °C. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:Herein, a porous polycarbonate blend monolith with hierarchical micro-nano structure using fluorine-free and low-cost material via a simple thermally induced phase separation is successfully prepared. The unique micro-nano structure endows the monolith with high porosity (90%) and low density (93 mg/cm3), as well as strong superhydrophobicity (water contact angle of 159°) and superoleophilicity. It shows high saturation adsorption capacity (6.25–10.58 g/g) and rapid adsorption rate (20 s reach adsorption equilibrium). Furthermore, outstanding environmental resistance in a variety of harsh conditions, such as contact angle varies slightly under various pHs (1–14) and the constant adsorption capacity at different temperatures (0–100 °C), is found. Additionally, the monolith displays good recycling performance for at least 10 cycles by simply pumping and evaporating, indicating a good application prospect in the field of practical oil-water separation. [Display omitted] • Superhydrophobic PDMS/PC monolith with hierarchical micro-nano structure is prepared. • Monolith endows the high porosity (90.8%) and low density (93 mg/cm3). • It has outstanding environmental resistance and constant adsorption capacity at 0–100 °C. [ABSTRACT FROM AUTHOR]
ISSN:00323861
DOI:10.1016/j.polymer.2022.124994