Reverse Microemulsion Synthesis of Hydroxyapatite Nanoparticles and Adsorption Performance Study
Hydroxyapatite (HA) nanopowder was synthesized by reverse microemulsion technique using calcium nitrate and phosphoric acid as starting materials in aqueous phase.Cyclohexane was used as organic solvents,TX-100 as surfactants and n-butyl alcohol to make the emulsion.Synthesized powder was characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM).The results showed that different pH values and temperatures had significant effect on the purity and crystallinity of HA by using the reverse microemulsion.When the pH value is 11 and at 700℃,high purity and well crystallinity HA was obtained.There is a dicalcium phosphate phase present at pH 9,which is easily disassembled to CPP at 700℃.This HA powders have a rapid Cu2+ and Cd2+ sorption rate and good removal efficiency.The removal rates for heavy metal ions were Cd2+ > Cu2+.
Reverse microemulsion Hydroxyapatite Heavy metal ions adsorption
Shaohong Wang Cai Wang Zhaoxia Hou Hao Wang Xiaodan Hu Haoran Lu Zhaolu Xue Changlei Niu
Liaoning Province Key Laboratory of Advanced Materials Technology,Shenyang University,Shenyang 110044,China
国际会议
The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))
厦门
英文
119-122
2011-11-04（万方平台首次上网日期，不代表论文的发表时间）