Colloidal properties and stability of aqueous suspensions of few-layer graphene: Importance of graphene concentration

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• 作者：Yu Su^a ; Guoqing Yang^a ; Kun Lu^a ; Elijah J. Petersen^b ; Liang Mao^a ; ^{lmao@nju.edu.cn}
• 关键词：Graphene ; Nanomaterial ; Agglomeration ; Sedimentation ; Bioaccumulation
• 刊名：Environmental Pollution
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：220
• 期：part_PA
• 页码：469-477
• 全文大小：1965 K
• 卷排序：220

文摘

Dilution retards the attachment, agglomeration and sedimentation of FLG. FLG agglomerates rapidly in deionized water at concentrations >3 mg/L. FLG (≤0.1 mg/L) is relatively stable in electrolyte solutions and ambient waters. Ionic strength affects FLG stability in a manner consistent with the DLVO theory. Suspended small FLG has strong chorion penetration ability in zebrafish embryos.