Comparative Studies on the Characteristics for Pb2+ or Cd2+ Adsorption onto Hydroxyapatite and Bone Charcoal

doi:10.14088/j.cnki.issn0439-8114.2018.09.011

Abstract

Abstract: It was investigated about the different characteristics of Pb²⁺ or Cd²⁺ adsorption or desorption onto hydroxyapatite （HAP） and bone charcoal（BC） through batch experiment,furtherly,FTIR were used to explore the mechanisms underlying that. The results revealed that the adsorption of Pb²⁺ and Cd²⁺ onto HAP and BC fitted well with both Henry and Freundlich isotherm model,BC had much higher efficiency to remove Pb²⁺ from aqueous solution compared with HAP,besides,the Pb²⁺ could be more quickly adsorbed onto BC than that onto HAP. But it was opposite for the Cd²⁺ adsorption with the much higher removal efficiency and adsorption rate being found on HAP.

Key words: hydroxyapatite, bone charcoal, heavy metal, adsorption

CLC Number:

X53
X703

SHEN Xu-yang, LYU Ji-kang, XU Hui-ting, CHEN Fei-fei, WANG Yan, WU Jian-qiu, FU Ju-yang, ZHU Wei-qin. Comparative Studies on the Characteristics for Pb²⁺ or Cd²⁺ Adsorption onto Hydroxyapatite and Bone Charcoal[J]. HUBEI AGRICULTURAL SCIENCES, 2018, 57(9): 45-49.

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Comparative Studies on the Characteristics for Pb²⁺ or Cd²⁺ Adsorption onto Hydroxyapatite and Bone Charcoal

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