Cupric Phosphate Nanosheets-Wrapped Inorganic Membranes with Superhydrophilic and Outstanding Anticrude Oil-Fouling Property for Oil/Water Separation,ACS Nano

当前位置： X-MOL 学术 › ACS Nano › 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.)

Cupric Phosphate Nanosheets-Wrapped Inorganic Membranes with Superhydrophilic and Outstanding Anticrude Oil-Fouling Property for Oil/Water Separation
ACS Nano ( IF 15.8 ) Pub Date : 2018-01-08 00:00:00 , DOI: 10.1021/acsnano.7b08121
Shenxiang Zhang _{1,

2} , Gaoshuo Jiang ₂ , Shoujian Gao _{1,

2} , Huile Jin ₃ , Yuzhang Zhu ₂ , Feng Zhang ₂ , Jian Jin _{1,

2}

Affiliation

Developing an effective and sustainable solution for cleaning up or separating oily water is highly desired. In this work, we report a completely inorganic mesh membrane made up of cupric phosphate (Cu₃(PO₄)₂) in a special intersected nanosheets-constructed structure. Combing the hierarchical structure with strong hydration ability of Cu₃(PO₄)₂, the nanosheets-wrapped membrane exhibits a superior superhydrophilic and underwater anti-oil-fouling and antibio-fouling property for efficient oil/water separation to various viscous oils such as heavy diesel oil, light crude oil, and even heavy crude oil with underwater oil contact angles (CAs) all above 158° and nearly zero underwater oil adhesive force even when a large preload force of up to 400 μN was applied on the oil droplet. Simultaneously, the membrane exhibits a high chemical and thermal stability and outstanding salt tolerance. Continuous separation operated on a cross-flow filtration apparatus demonstrates a large separation capacity and long-term stability of the membrane during treating a 2000 L crude oil/water mixture with constantly stable permeating flux of ∼4000 L/m² h and oil content in the filtrate below 2 ppm. The excellent anti-oil-fouling property, high separation capacity, and easily scaled-up preparation process of the membrane show great potential for practical application in treating oily wastewater.

中文翻译：

磷酸铜纳米片包裹的无机膜，具有超亲水性和出色的抗原油污垢性质，可用于油/水分离

迫切需要开发一种有效且可持续的解决方案来净化或分离含油水。在这项工作中，我们报告了一种由磷酸铜（Cu ₃（PO ₄）₂）构成的完全无机的网状膜，具有特殊的相交纳米片构造结构。结合具有强水合能力的Cu ₃（PO ₄）₂的层次结构，纳米片包裹的膜表现出优异的超亲水性和水下防污垢和抗生物污垢特性，可有效地将油/水分离为各种粘性油，例如重质柴油，轻质原油，甚至重质原油与水下油即使在油滴上施加了高达400μN的很大的预紧力时，它们的最大接触角（CAs）都在158°以上，水下油的粘附力几乎为零。同时，该膜表现出高化学稳定性和热稳定性以及出色的耐盐性。在错流过滤装置上进行的连续分离表明，在处理2000 L原油/水混合物时，膜具有很大的分离能力和长期稳定性，渗透通量恒定稳定，约为4000 L / m ^2。h，滤液中的油含量低于2 ppm。优异的防污垢性能，高分离能力和易于放大的膜制备工艺，在处理含油废水方面具有广阔的应用前景。

更新日期：2018-01-08

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11