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Synthesis of NH 2 ‐MIL‐125/NH 2 ‐MIL‐125‐P@TiO 2 and Its Adsorption to Uranyl Ions
Author(s) -
Xu Cheng,
Zhang Wei,
Chen Yuantao,
Hu Guangzhuang,
Liu Rong,
Han Zhen
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201902745
Subject(s) - uranyl , adsorption , uranium , x ray photoelectron spectroscopy , hydrothermal synthesis , langmuir adsorption model , materials science , nuclear chemistry , thermogravimetric analysis , inorganic chemistry , ion , langmuir , hydrothermal circulation , chemistry , chemical engineering , metallurgy , organic chemistry , engineering
Pollution in nuclear industry is a difficult problem to solve. To solve this problem, we synthesized the NH 2 ‐MIL‐125 modified materials (MIL‐125‐P@TiO 2 ) by hydrothermal synthesis and also investigated the adsorption properties of uranyl ions. To improve the adsorbability of materials, we loaded titanium dioxide and phosphorylate it. The materials were characterized by means of XRD, SEM, infrared, thermogravimetric and XPS. The adsorption properties of uranyl ions on the two materials were studied by batch adsorption experiments. The results showed that the maximum adsorption capacity of modified material is 333.62 mg/g and 614.82 mg/g at 25 degrees Celsius by fitting the Langmuir model respectively, and the modified material has a better adsorption ability at 25 degrees Celsius with initial uranium concentration at 100 mg/L.