Preparation of graphene/graphene nanoribbons hybrid aerogel and its application for the removal of uranium from aqueous solutions

Autor:	Changfu Wang, Peng Wu, Zhirong Liu, Xiaogang Cao, Hong Tu, Xuewen Hu, Yan Liu, Yang Li, Dingzhong Yuan, Yun Wang
Rok vydání:	2020
Předmět:	Materials science Graphene Health Toxicology and Mutagenesis Public Health Environmental and Occupational Health Oxide Aerogel Carbon nanotube Pollution Endothermic process Analytical Chemistry law.invention chemistry.chemical_compound Adsorption Nuclear Energy and Engineering chemistry Chemical engineering law Specific surface area Radiology Nuclear Medicine and imaging Spectroscopy Graphene nanoribbons
Zdroj:	Journal of Radioanalytical and Nuclear Chemistry. 325:207-215
ISSN:	1588-2780 0236-5731
Popis:	Graphene/graphene nanoribbons hybrid aerogel (GA/GNRs) was prepared via a hydrothermal process by using graphene oxide as precursor, and the graphene oxide nanoribbons unzipped from multi-walled carbon nanotubes were compound together. Various techniques were used to investigate the morphology, surface properties and structure of aerogel samples. Besides, the adsorption properties of the hybrid aerogel for the removal of U(VI) were further studied. The results showed that GNRs was grafted on the surface of graphene, and the specific surface area and porous pores structure were enhanced. The adsorption process of hybrid aerogel for U(VI) was pH-dependent, rapid, spontaneous and endothermic, and the maximum adsorption capacity for U(VI) was calculated to be 327.8 mg/g, which is expected to separate uranium from wastewater.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4b91cd10eac5dab903be1741c53edea1 https://doi.org/10.1007/s10967-020-07208-3 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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