新型 TiCT MXene 包裹的木海绵，通过出色的焦耳加热和光热效应实现快速清除原油泄漏。
Novel TiCT MXene wrapped wood sponges for fast cleanup of crude oil spills by outstanding Joule heating and photothermal effect.
机构信息
Engineering Research Center of Forestry Biomass Materials and Bioenergy, Research Center of Biomass Clean Utilization, Beijing Key Laboratory of Lignocellulosic Chemistry, College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, PR China.
Engineering Research Center of Forestry Biomass Materials and Bioenergy, Research Center of Biomass Clean Utilization, Beijing Key Laboratory of Lignocellulosic Chemistry, College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, PR China.
出版信息
J Colloid Interface Sci. 2022 Jan 15;606(Pt 2):971-982. doi: 10.1016/j.jcis.2021.08.092. Epub 2021 Aug 18.
Remediation of crude oil spills is a great challenge owing to the poor mobility and high viscosity of crude oil. Herein, a porous polydimethylsiloxane@wood sponge/MXene (PDMS@WSM) with outstanding compressibility and hydrophobic/lipophilic ability was demonstrated as crude oil absorbent. The surface temperature of PDMS@WSM could quickly rise to 80 °C with a working voltage of 4 V and to 66 °C under simulated sunlight irradiation of 1.5 KW m, respectively. Due to the excellent Joule heating and photothermal conversion effect, the PDMS@WSM displayed maximum adsorption capacity of 11.2×10 g m within 6 min. The PDMS@WSM showed preferable reusability and cycle stability because of its brilliant compressibility. Moreover, the oil-collecting device based on PDMS@WSM could continuously collect crude oil spills, achieving an active collection of 25 mL crude oil within 150 s. Therefore, the porous PDMS@WSM absorbent exhibited great potential for crude oil spills remediation, energy regulation, and desalination of hypersaline water.
由于原油的流动性差和粘度高，原油泄漏的补救是一项巨大的挑战。在此，展示了一种具有出色可压缩性和疏油/亲水性的多孔聚二甲基硅氧烷@木海绵/MXene（PDMS@WSM），可用作原油吸收剂。PDMS@WSM 的表面温度可以在 4V 的工作电压下迅速升高到 80°C，在 1.5KW m 的模拟太阳光照射下分别升高到 66°C。由于出色的焦耳加热和光热转换效果，PDMS@WSM 在 6 分钟内显示出最大的吸附容量 11.2×10 g m。PDMS@WSM 表现出良好的可重复使用性和循环稳定性，因为其具有出色的可压缩性。此外，基于 PDMS@WSM 的集油器可以连续收集原油泄漏物，在 150 秒内可主动收集 25 毫升原油。因此，多孔 PDMS@WSM 吸收剂在原油泄漏补救、能量调节和高盐度水脱盐方面显示出巨大的潜力。
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