Plant Polyphenols as Multifunctional Platforms To Fabricate Three-Dimensional Superhydrophobic Foams for Oil/Water and Emulsion Separation,Industrial & Engineering Chemistry Research

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Plant Polyphenols as Multifunctional Platforms To Fabricate Three-Dimensional Superhydrophobic Foams for Oil/Water and Emulsion Separation
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2018-11-13 , DOI: 10.1021/acs.iecr.8b03953
Guangyan Chen _{1,

2} , Yiran Cao ₁ , Le Ke ₁ , Xiaoxia Ye ₃ , Xin Huang _{1,

3} , Bi Shi _{1,

2}

Affiliation

Taking plant polyphenols as multifunctional platforms, we developed an environmentally friendly surface decoration strategy for preparing new types of three-dimensional (3D) superhydrophobic foams. The superhydrophobic foams were fabricated by in situ growth of β-FeOOH nanoparticles on melamine foams that were pretreated by noncovalent surface decoration of plant polyphenol–glutaraldehyde cross-linkage, followed by the Michael addition of 1-dodecanethiol to plant polyphenols. The as-prepared superhydrophobic foams had water contact angles of 154.93° and 153.12° on the exterior and interior surfaces, respectively. The superhydrophobic foams featured a large absorption capacity, high mechanical robustness, structural stability, and flame resistance. During the 100 cycles of absorption and squeezing, the loss of absorption capacity was as low as 0.14% per cycle. In a continuous separation process, organic pollutants were successfully removed from water with a separation efficiency of 98.0%. Notably, the 3D superhydrophobic foams successfully separated six types of oil/water microemulsions, with a peak separation efficiency of 99.82%.

中文翻译：

植物多酚作为多功能平台制造油/水和乳液分离的三维超疏水泡沫

以植物多酚为多功能平台，我们开发了一种环保的表面装饰策略，用于制备新型的三维（3D）超疏水性泡沫。超疏水泡沫是原位制备的β-FeOOH纳米颗粒在三聚氰胺泡沫塑料上的生长，该三聚氰胺泡沫塑料通过植物多酚-戊二醛交联的非共价表面修饰进行预处理，然后将1-十二烷硫醇迈克尔加成到植物多酚上。所制备的超疏水泡沫在外表面和内表面上的水接触角分别为154.93°和153.12°。超疏水性泡沫具有吸收能力强，机械强度高，结构稳定性和阻燃性高的特点。在100个吸收和压缩循环中，每个循环的吸收容量损失低至0.14％。在连续分离过程中，成功地从水中去除了有机污染物，分离效率为98.0％。值得注意的是，3D超疏水性泡沫成功地分离出六种类型的油/水微乳液，

更新日期：2018-11-13

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