Adsorption of Ce modified metal organic framework to fluorine

被引：0
|
作者：
Wu X. [1 ]
Cao Z. [1 ]
Su T. [2 ]
Li L. [1 ]
机构：
[1] School of Environmental Science and Engineering, Tiangong University, Tianjin
[2] College of Ecological Environment and Urban Construction, Fujian University of Engineering, Fuzhou
来源：
Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2020年 / 37卷 / 10期
关键词：
Adsorption; Adsorption kinetics; Adsorption thermodynamics; Fluoride; MOF-5; One-pot synthesis;
D O I：
10.13801/j.cnki.fhclxb.20200225.003
中图分类号：
学科分类号：
摘要：
The Ce/MOF-5 materials with different properties were synthesized by means of hydrothermal synthesis method by mixing Ce with the reaction precursors required for the synthesis of metal organic framework materials (MOFs). The synthetic materials were characterized by SEM, XRD and BET, etc. The results show that the Ce/MOF-5 synthesized by different methods shows significant differences in morphology and fluorine adsorption performance. The effect of the initial concentration, pH value and adsorption time on the adsorption effect of F- was also determined. The experiments show that the adsorption of F- by Ce/MOF-5 material synthesized by the "one-pot method" obtains an adsorption balance of 109.6 mg•g-1 at pH=7, with a adsorption time of about 60 min. It conforms to the quasi-second order kinetic model and Freundlich isothermal adsorption model. © 2020, Editorial Office of Acta Materiae Compositae Sinica. All right reserved.
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页码：2636 / 2644
页数：8
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  • [1] YU Z, XU C, YUAN K, Et al., Characterization and adsorption mechanism of ZrO<sub>2</sub> mesoporous fibers for health-hazardous fluoride removal[J], Journal of Hazardous Materials, 346, pp. 82-92, (2017)
  • [2] RAGHAV S, KUMAR D., Comparative kinetics and thermodynamic studies of fluoride adsorption by two novel synthesized biopolymer composites, Carbohydrate Polymers, 203, pp. 430-440, (2019)
  • [3] LU G K, LI S, GUO Z, Et al., Imparting functionality to a metal-organic framework material by controlled nanoparticle encapsulation, Nature Chemistry, 4, 4, pp. 310-316, (2012)
  • [4] ZHAO X, LIU D, HUANG H, Et al., The stability and defluoridation performance of MOFs in fluoride solutions, Microporous and Mesoporous Materials, 185, pp. 72-78, (2014)
  • [5] GUO Yunlong, Adsorption of phosphorus and fluorine in water by zif-8 and nh_2-mil-101 (Al), (2015)
  • [6] ZHANG Nantong, Controlled preparation of metal-organic framework material mil-96 and its research on fluorine removal and hydrogen storage, (2014)
  • [7] DENG H, YU X., Adsorption of fluoride, arsenate and phosphate in aqueous solution by cerium impregnated fibrous protein[J], Chemical Engineering Journal, 184, pp. 205-212, (2012)
  • [8] QI Z, JOSHI T P, LIU R, Et al., Synthesis of Ce(III)-doped Fe3O4 magnetic particles for efficient removal of antimony from aqueous solution[J], Journal of Hazardous Materials, 329, pp. 193-204, (2017)
  • [9] BISERCIC M S, MARJANOVIC B, VASILJEVIC B N, Et al., The quest for optimal water quantity in the synthesis of metal-organic framework MOF-5[J], Microporous and Mesoporous Materials, 278, pp. 23-29, (2019)
  • [10] HE L, LIU Y, LIU J, Et al., Core-shell noble-metal@metal-organic-framework nanoparticles with highly selective sensing property[J], Angewandte Chemie, 52, 13, pp. 3741-3745, (2013)
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