Nano-crystalline hydroxyapatite bio-mineral for the treatment of strontium from aqueous solutions.

Stephanie Handley-Sidhu, Joanna Renshaw, P Yong, R Kerley, Lynne Macaskie

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Hydroxyapatites were analysed using electron microscopy, X-ray diffraction (XRD) and X-ray fluorescence (XRF) analysis. Examination of a bacterially produced hydroxyapatite (Bio-HA) by scanning electron microscopy showed agglomerated nano-sized particles; XRD analysis confirmed that the Bio-HA was hydroxyapatite, with an organic matter content of 7.6%; XRF analysis gave a Ca/P ratio of 1.55, also indicative of HA. The size of the Bio-HA crystals was calculated as ~25 nm from XRD data using the Scherrer equation, whereas Comm-HA powder size was measured as
Original languageEnglish
Pages (from-to)79-87
Number of pages9
JournalBiotechnology Letters
Volume33
DOIs
Publication statusPublished - 8 Sept 2011

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