Inorganic Chemicals Industry >
Research on structure regulation and fluorine removal property of mesoporous alumina
Received date: 2020-01-12
Online published: 2020-06-12
Nano-alumina powder materials were prepared by hydrothermal reaction and high-temperature calcination by using sodium aluminate（NaAlO2） and aluminum chloride（AlCl3·6H2O） as aluminum sources,and glucose,chitosan and CTAB as structure directing agents,respectively.The products were systematically characterized by the means of powder X-ray diffrac-tion（XRD）,scanning electron microscope（SEM）,N2 adsorption and desorption,and Fourier infrared spectroscopy（FT-IR）. Results showed that all the products were γ-Al2O3 with mesoporous structure,which presented the nanoparticles morphology and good dispersion. Among them,γ-Al2O3 which regulated by glucose has a large specific surface area（437 m2/g） and pore volume （0.60 cm3/g）.The adsorption results of four kinds of mesoporous γ-Al2O3 towards F- solution showed that the best defluorination effect was found in γ-Al2O3 adsorbent regulated by glucose.
Key words： mesoporous alumina; fluoride ions; adsorption; structure regulation; morphology
Naicai Xu , Dandan Shi , Sixia Li . Research on structure regulation and fluorine removal property of mesoporous alumina[J]. Inorganic Chemicals Industry, 2020 , 52(6) : 20 -23 . DOI: 10.11962/1006-4990.2019-0404
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