负载氢氧化镧的膨胀石墨除磷剂的制备、性能及再生

doi:10.3969/j.issn.1007-2861.2015.02.017

Abstract

Abstract:

Expanded graphite-LaOH (EG-LaOH) was fabricated successfully using an immersion method. The best synthesis conditions were studied. Influences of initial phosphate concentration, interfering anions and dosage were investigated as well. The best condition of EG-LaOH preparation was La concentration of 0.10 mol/L and immersion time of 40 min. Removal capacity of EG-LaOH was gradually improved and then kept unchanged with the increase of phosphate concentration but decreased with the rise of dosage. F⁻ and Cl⁻ had only limited impact on phosphorus removal of EG-LaOH. After the first recovery under the condition of 25 and 90 ℃, removal capacities of EG-LaOH could still reach 9.48 and 14.40 mg/g, respectively.

Key words: lanthanum , expanded graphite (EG) , recovery, phosphate adsorption

SU Yang, JIN Suwan, ZHANG Ling. Preparation, performance and recovery of expanded graphite loaded with lanthanum hydroxide[J]. Journal of Shanghai University（Natural Science Edition）, 2016, 22(6): 776-783.

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Preparation, performance and recovery of expanded graphite loaded with lanthanum hydroxide

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