Preparation of Carbonized Kapok Fiber/Reduced Graphene Oxide Aerogel for Oil‐Water Separation,Chemical Engineering & Technology

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Preparation of Carbonized Kapok Fiber/Reduced Graphene Oxide Aerogel for Oil‐Water Separation
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2020-09-09 , DOI: 10.1002/ceat.202000168
Ji Zhou ₁ , Enhui Du ₁ , Yu He ₁ , Yunde Fan ₁ , Yong Ye ₁ , Bin Tang _{2,

3}

Affiliation

A carbonized composite aerogel was fabricated based on kapok fibers (KFs) and graphene oxide (GO) through hydrothermal and carbonizing reactions. The as‐prepared carbonized kapok fiber/reduced graphene oxide (CKF/RGO) aerogel exhibited special features including light weight, fire resistance, stable structure, hydrophobicity, and oleophilicity. The wettability of the KF/GO aerogel was transformed to hydrophobicity after carbonization, which provided the CKF/RGO aerogel with a distinct ability for oil‐water separation. The CKF/RGO aerogel was able to adsorb oil liquids up to 110 times of its own weight. The sorption capacity of the CKF/RGO aerogel was still higher than 90 % of the initial sorption capacity after eleven sorption‐combustion cycles of n‐hexane solvent.

中文翻译：

碳化木棉纤维/氧化石墨烯气凝胶的制备

基于木棉纤维（KFs）和氧化石墨烯（GO），通过水热和碳化反应制备了碳化复合气凝胶。制备的碳化木棉纤维/氧化石墨烯（CKF / RGO）气凝胶具有特殊的功能，包括重量轻，阻燃性，结构稳定，疏水性和亲油性。碳化后，KF / GO气凝胶的润湿性转变为疏水性，这为CKF / RGO气凝胶提供了独特的油水分离能力。CKF / RGO气凝胶能够吸附高达自身重量110倍的油液。所述CKF / RGO气凝胶的吸附能力仍是初始吸附能力的90％以上的11吸附燃烧循环后ñ -己烷溶剂。

更新日期：2020-09-09

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