Journal
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
Volume 26, Issue 2, Pages 285-293Publisher
SPRINGER
DOI: 10.1007/s10904-015-0315-1
Keywords
La-Zr composite; Defluoridation; Adsorption; Pollution treatment
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Funding
- National Natural Science Foundation [51368044, 51568051, 51272099]
- Open Project Program of State Key Laboratory of Food Science and Technology, Nanchang University [SKLF-KF-201417]
- Science and Technology Supporting Program of Jiangxi Province [20151BBG70018]
- Project Program of Shanghai Academy of Spaceflight Technology [SAST201459]
- Open Project Program of Advanced Laboratory of POPs Cyclic Utilization and Control [ST201422015]
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A novel La-Zr composite was prepared by one pot method in mild conditions, and it shows a high fluoride removal ability of 143 mg/g. The powders were characterized by SEM, EDS, and FTIR. The effects of various factors such as pH, the presence of coexisting anions, contacting time, and initial fluoride concentration were investigated. The equilibrium data were studied by being fitted to several isotherm models, and the kinetic data are found to be described very well by the pseudo-second-order kinetic model. The overall rate of fluoride adsorption is likely to be controlled by chemisorption processes. The mechanism of adsorption was discussed in detail.
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