Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering, Innovation Center for Textile Science and Technology, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, China.
Key Lab of Science and Technology of Eco-textile, Ministry of Education, College of Chemistry, Chemical Engineering, Innovation Center for Textile Science and Technology, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, China; Department of Textile &Garment Engineering, Changshu Institute of Technology, Suzhou 215500, China.
Bioresour Technol. 2024 Nov;412:131344. doi: 10.1016/j.biortech.2024.131344. Epub 2024 Aug 28.
A biomass CS/CNTs@MTMS (MCCS) aerogel with both aligned channel network, superhydrophobicity, and photothermal conversion ability was prepared by a green and facile strategy of directed freeze-drying and chemical vapor deposition using chitosan (CS), carbon nanotubes (CNTs), and methyltrimethoxysilane (MTMS) as the building materials. Capacity to adsorb a large variety of oils and organic solvents, with an adsorption capacity of up to 34-83 g/g. After 10 cycles, the adsorption capacity of MCCS remained at 94 % of the initial capacity, providing excellent reusability. In addition, due to its unique network of aligned channels, the MCCS can continuously separate oil and water, making it a sustainable oil-water separator. More interestingly, the MCCS aerogel has excellent photothermal conversion capabilities, and it was utilized to evaporate oil collected during the oil-water separation process using solar energy. This work provides an opportunity to design novel self-cleaning photothermally driven oil-water separation biomass materials with superhydrophobicity-strong lipophilicity.
一种具有定向通道网络、超疏水性和光热转换能力的生物质 CS/CNTs@MTMS（MCCS）气凝胶，是通过绿色简便的定向冷冻干燥和化学气相沉积策略，使用壳聚糖（CS）、碳纳米管（CNTs）和甲基三甲氧基硅烷（MTMS）作为建筑材料制备的。它能够吸附各种油和有机溶剂，吸附容量高达 34-83 g/g。经过 10 次循环后，MCCS 的吸附容量仍保持在初始容量的 94%，具有出色的可重复使用性。此外，由于其独特的定向通道网络，MCCS 可以连续分离油和水，使其成为一种可持续的油水分离器。更有趣的是，MCCS 气凝胶具有优异的光热转换能力，可利用太阳能蒸发油水分离过程中收集的油。这项工作为设计具有超疏水性-强亲油性的新型自清洁光热驱动油水分离生物质材料提供了机会。
