当前位置: X-MOL 学术Macromol. Mater. Eng. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Preparation of Robust Superhydrophobic Sand by Chemical Vapor Deposition of Polydimethylsiloxane for Oil/Water Separation
Macromolecular Materials and Engineering ( IF 4.2 ) Pub Date : 2020-09-28 , DOI: 10.1002/mame.202000425
Elham Mosayebi 1 , Saeid Azizian 1 , Nima Noei 2
Affiliation  

In recent years, oil has been released by industrial activities into the aquatic environment and threatened human's and creatures’ health, hence researchers are seeking to find proper methods to separate oil from water. Superhydrophobic surfaces are promising materials for oil/water separation. In the present work, polydimethylsiloxane (PDMS) is loaded on the surface of sand grains by chemical vapor deposition method. The preparation method is a single‐step and simple method and just needs small amounts of a single component (PDMS). The prepared sample is characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), and energy dispersive X‐Ray (EDS) methods, also water contact angle is measured. The water contact angle is about 152±1° and the surface shows superhydrophobic property which can be used as an efficient filter for oil/water separation. The oil/water separation efficiency is high (98%) and almost constant after 25 cycles. The obtained superhydrophobic sand is stable in harsh and corrosive conditions for instance acidic and basic solutions.

中文翻译:

聚二甲基硅氧烷化学气相沉积油/水分离法制备坚固的超疏水砂

近年来,石油已经通过工业活动释放到水生环境中,并威胁到人类和生物的健康,因此研究人员正在寻求找到将油与水分离的合适方法。超疏水表面是用于油/水分离的有前途的材料。在目前的工作中,通过化学气相沉积法将聚二甲基硅氧烷(PDMS)负载在沙粒表面。制备方法是单步简单的方法,只需要少量的单一组分(PDMS)。制备的样品通过扫描电子显微镜(SEM),原子力显微镜(AFM)和能量色散X射线(EDS)方法进行表征,并测量水接触角。水接触角约为152±1°,表面显示出超疏水性能,可用作油/水分离的有效过滤器。油/水分离效率高(98%),经过25个循环后几乎保持恒定。所获得的超疏水砂在苛刻和腐蚀性条件下(例如酸性和碱性溶液)是稳定的。
更新日期:2020-09-28
down
wechat
bug