One-Step Synthesis of Carbon-Hybridized ZnO on Polymeric Foams by Atomic Layer Deposition for Efficient Absorption of Oils from Water,Industrial & Engineering Chemistry Research

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One-Step Synthesis of Carbon-Hybridized ZnO on Polymeric Foams by Atomic Layer Deposition for Efficient Absorption of Oils from Water
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2018-01-19 00:00:00 , DOI: 10.1021/acs.iecr.7b03939
Sen Xiong ₁ , Yang Yang ₁ , Zhaoxiang Zhong ₁ , Yong Wang ₁

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Reusable absorbents with high absorption capacity, good selectivity, and low cost are highly demanded for efficient removal of oil spills and organic leakages from water. We discover that ZnO produced by atomic layer deposition (ALD) is hybridized with carbon moieties, and consequently exhibits an appreciable hydrophobicity. By taking this advantage, we develop a “dry” process to produce high-performance oil absorbents. Originally amphiphilic polymeric foams are directly turned into strongly hydrophobic oil absorbents simply by ALD of ZnO and exhibit excellent absorption capacity, selectivity and reusability. Such absorption capacities and reusability are better than most foam-based oil absorbents. Surprisingly, we find that ALD-deposited ZnO can reverse the wettability of polymeric foams depending on the foam porosities. This ALD-enabled surface functionalization is expected to find important applications in the synthesis of many other interfacial materials.

中文翻译：

原子层沉积在聚合物泡沫上一步合成碳杂化的ZnO，有效吸收水中的油

为了有效地从水中去除溢油和有机泄漏，强烈要求具有高吸收能力，良好的选择性和低成本的可重复使用的吸收剂。我们发现通过原子层沉积（ALD）产生的ZnO与碳部分杂化，因此表现出明显的疏水性。利用这一优势，我们开发了一种“干式”工艺来生产高性能吸油剂。最初，仅通过ZnO的ALD即可将两亲聚合物泡沫直接转变为强疏水性吸油剂，并且具有出色的吸收能力，选择性和可重复使用性。这种吸收能力和可重复使用性优于大多数泡沫基吸油剂。令人惊讶地，我们发现，ALD沉积的ZnO可以逆转聚合物泡沫的润湿性，这取决于泡沫的孔隙率。

更新日期：2018-01-19

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