Efficient scavenging of uranium (VI) using porous hexagonal boron nitride by a combined process of surface adsorption and induced precipitation crystallization

Autor:	Yin Zhao, Guodong Sheng, Yang Jin, Chaogui Chen, Hadi M. Marwani, Li Li, Abdullah M. Asiri, Wensheng Linghu
Rok vydání:	2019
Předmět:	Materials science Precipitation (chemistry) Health Toxicology and Mutagenesis Public Health Environmental and Occupational Health chemistry.chemical_element Uranium 010403 inorganic & nuclear chemistry Uranyl 01 natural sciences Pollution 0104 chemical sciences Analytical Chemistry law.invention chemistry.chemical_compound Adsorption Nuclear Energy and Engineering chemistry Chemical engineering Chemisorption law Radiology Nuclear Medicine and imaging Ammonium Crystallization Porosity Spectroscopy
Zdroj:	Journal of Radioanalytical and Nuclear Chemistry. 321:1035-1044
ISSN:	1588-2780 0236-5731
DOI:	10.1007/s10967-019-06644-0
Popis:	An ammonium/hydroxyl-enriched p-BN microrods were synthesized and the adsorption behavior of uranyl on p-BN was systematically studied. The adsorption kinetic and isotherm studies revealed the adsorption behavior is independent on electrostatic attraction or chemisorption. The results demonstrate uranyl hydrolyzed precipitated crystals are formed on the surface of p-BN at an optimized pH of 2.86 and the maximum adsorption capacity can reach 413 mg g−1 at T = 303 K. A hypothetical adsorption mechanism with a combination of surface adsorption and induced precipitation crystallization was proposed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c991f4f47bcf7ea31e8fd36e18dd7744 https://doi.org/10.1007/s10967-019-06644-0 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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