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Low-temperature carbonization synthesis of carbon-based super-hydrophobic foam for efficient multi-state oil/water separation
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2021-09-06 , DOI: 10.1016/j.jhazmat.2021.127064
Yan Kong 1 , Shumei Zhang 1 , Yue Gao 1 , Xiaohu Cheng 1 , Wenjia Kong 1 , Yuanfeng Qi 2 , Shouquan Wang 3 , Fengjiao Yin 3 , Zhenguo Dai 4 , Qinyan Yue 1 , Baoyu Gao 1
Affiliation  

In view of the complexity and diversity of multi-state oils, the development of green and low-cost materials with high selectivity to oils has important ecological significance in the polluted water treatment. Herein, a simple method was proposed to develop large-scale production of superhydrophobic sponges (CPMF200 sponges) for high-efficiency oil/water separation under different complex environments. The as-prepared CPMF200 sponges possessed many superior properties, including high roughness, well-developed porosity, good thermal stability, excellent chemical stability, and superhydrophobic properties (water contact angle is 152°), which is conducive to high oil adsorption capacity (up to 70–179 times of its own weight) and oil-water separation. More importantly, the CPMF400 sponge has an excellent photothermal conversion capability to improve the fluidity of high viscosity oil for oil recovery. Based on a simple synthesis method, it exhibits high-efficiency absorption of multi-state oils and excellent oil-water separation performance and strongly proves their application prospects in treating oily wastewater.



中文翻译:

碳基超疏水泡沫低温碳化合成高效多态油水分离

鉴于多态油脂的复杂性和多样性,开发绿色、低成本、对油脂具有高选择性的材料在污染水处理中具有重要的生态意义。本文提出了一种简单的方法来大规模生产超疏水海绵(CPMF200海绵),用于不同复杂环境下的高效油水分离。所制备的 CPMF200 海绵具有许多优越的性能,包括高粗糙度、发达的孔隙率、良好的热稳定性、优异的化学稳定性和超疏水性(水接触角为 152°),有利于高吸油能力(高达自重的 70-179 倍)和油水分离。更重要的是,CPMF400海绵具有优异的光热转换能力,可提高高粘度油的流动性,用于采油。它基于简单的合成方法,表现出对多态油的高效吸收和优异的油水分离性能,有力地证明了其在含油废水处理中的应用前景。

更新日期:2021-09-17
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