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Biopolymer-induced morphology control of brushite for enhanced defluorination of drinking water

Journal of Colloid And Interface Science, 01 April 2017, Vol.491, pp.207-215 [Peer Reviewed Journal]

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  • Title:
    Biopolymer-induced morphology control of brushite for enhanced defluorination of drinking water
  • Author: Chen, Yanhong ; Shen, Chensi ; Rashid, Sadia ; Li, Su ; Ali, Babar Aijaz ; Liu, Jianshe
  • Found In: Journal of Colloid And Interface Science, 01 April 2017, Vol.491, pp.207-215 [Peer Reviewed Journal]
  • Subjects: Brushite ; Morphology Control ; Chitosan Polymer ; Defluorination ; Drinking Water ; Adsorption ; Engineering ; Chemistry
  • Language: English
  • Description: Due to the relatively lower potential health risks as well as the good affinity for fluoride anion, calcium-based minerals have been widely carried out for the adsorption of fluoride. The improvement of adsorption capacity can be accomplished by regulation of particle size, shape and structure. Thus, here we report the controllable synthesis of petal-like nanosheets of brushite by using chitosan as a regulator. The addition of chitosan polymer in calcium precursor not only could serve ideal nucleation sites but also could play a vital role in confining the calcium phosphate aggregates and thus controlling the size of the brushite flakes. When the concentration of chitosan was 0.01 wt%, the as-synthesized brushite showed nanosheet-structured with the dimensions ranged from 100 to 200 nm and displayed outstanding fluoride adsorption capacity of 231.5 mg/g according to the fitted Langmuir model, which was comparatively higher...
  • Identifier: ISSN: 0021-9797 ; E-ISSN: 1095-7103 ; DOI: 10.1016/j.jcis.2016.12.032

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