Preparation of modified hydroxyapatite/mixed acid-oxidized multi-walled carbon nanotubes and applications

被引：0
|
作者：
He Y. [1 ,2 ,3 ]
Wang R. [1 ,2 ,3 ]
Zhou Y. [1 ,2 ,3 ]
Fan L. [1 ,2 ,3 ]
Dou Y. [1 ,2 ,3 ]
机构：
[1] School of Water and Environment, Chang'an University, Xi'an
[2] Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region, the Ministry of Education, Chang'an University, Xi'an
[3] Key Laboratory of Eco-hydrology and Water Security in Arid and Semi-arid Regions of Ministry of Water Resources, Chang'an University, Xi'an
来源：
Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2024年 / 41卷 / 02期
关键词：
adsorption performance; composite nanomaterials; hydroxyapatite; Mn(II)-containing wastewater; multi-walled carbon nanotubes;
D O I：
10.13801/j.cnki.fhclxb.20230825.001
中图分类号：
学科分类号：
摘要：
The development of nanocomposites with high dispersion and good adsorption properties is important for the removal of heavy metal ions from water bodies. Fluorine/carbon-doped hydroxyapatite (FCHAP) was prepared stepwise by microwave/light-wave combined heating assisted chemical precipitation using mixed-acid oxidized multi-walled carbon nanotubes (AO-MWCNTs) as the matrix and hydroxyapatite (HAP) was introduced and loaded onto AO-MWCNTs to synthesize FCH/AO-MWCNTs composites. The results show that the theoretical maximum adsorption capacity of FCH/AO-MWCNTs for Mn(II) is 317.5 mg/g, which is higher than that of AO-MWCNTs and each preparation intermediate. Combined with the characterization results of SEM-EDS, FTIR, XPS, Zeta, and BET, it is speculated that the new material FCH/AO-MWCNTs form more abundant pore structure and adsorption sites, and their dispersion and stability performance are excellent, and at the same time, the new material has broad application prospects in the removal of other heavy metals and recycling. © 2024 Beijing University of Aeronautics and Astronautics (BUAA). All rights reserved.
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页码：735 / 747
页数：12
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