Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 57, Issue 4, Pages 1269-1276Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.7b03939
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Funding
- National Basic Research Program of China [2015CB655301]
- Natural Science Research Program of the Jiangsu Higher Education Institutions [13KJA430005]
- Natural Science Foundation of Jiangsu Province [BK20150063]
- Program of Excellent Innovation Teams of Jiangsu Higher Education Institutions
- Project of Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
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Reusable absorbents with high absorption capacity, good selectivity, and low cost arc 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.
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