Using diethylenetriamine pentamethylene phosphonic acid (DTPMP) as the organic phosphine source,and zirconium oxychloride (ZrOCl2·8H2O) as the inorganic zirconium source,diethylenetriamine pentamethylene phosphate zirconium(Zr-DTPMP) was prepared by hydrothermal method.Afterwards,the organic-inorganic hybrid materials synthesized under different ratios of phosphorus and zirconium were characterized by FT-IR,SEM & EDS,and the initial pH value,contact time,initial concentration of uranium(Ⅵ),temperature and the dosage of adsorbent were used as an influencing factor to study the effect of Zr-DTPMP on the performance of U(Ⅵ) adsorption by static adsorption method.The results showed that P—O—Zr and C—P stretching vibrations appeared in the FT-IR of Zr-DTPMP,indicating that the organic hybrid material was successfully prepared,and the SEM image showed that the surface had abundant pore structure.After adsorption,the energy scattering peak of U(Ⅵ) appeared in the EDS spectrum of Zr-DTPMP,confirming that Zr-DTPMP can remove U(Ⅵ) in the aqueous solution.The best conditions for Zr-DTPMP to adsorb U(Ⅵ) were The ratio of phosphine to zirconium was 5∶1,pH=4.0,adsorption equilibrium time 360min,initial uranium concentration 50mg/L,temperature 298K,and dosage 0.01g.
Chen Rui, Cui Anxi, Zheng Bowen, Xu Wei
. Adsorption of U(Ⅵ) on diethylenetriamine pentamethylene phosphate zirconium[J]. New Chemical Materials, 2021
, 49(3)
: 126
-130
.
DOI: 10.19817/j.cnki.issn 1006-3536.2021.03.028
[1] Girardi F,Graziola F,Aldighieri P,et al.Inorganic-organic hybrid materials with zirconium oxoclusters as protective coatings on aluminium alloys[J].Progress in Organic Coatings,2008,62(4):376-381.
[2] Bordoloi A,Mathew N T,Lefebvre F,et al.Inorganic-organic hybrid materials based on functionalized silica and carbon:a comprehensive understanding toward the structural property and catalytic activity difference over mesoporous silica and carbon supports[J].Microporous & Mesoporous Materials,2008,115(3):345-355.
[3] Mehraban Z,Farzaneh F,Shafiekhani A.Synthesis and characterization of a new organic-inorganic hybrid NiO-chlorophyll-a,as optical material[J].Optical Materials,2007,29(8):927-931.
[4] Akitsu T,Nishijo J.The first detection of photomodulation by both DC and in-phase AC susceptibility for organic/inorganic hybrid materials containing cyano-bridged Gd-Cr complex and azobenzene[J].Journal of Magnetism & Magnetic Materials,2008,320(8):1586-1590.
[5] Abubaker Abutartour,Lotfia El Majdoub,史亚赛,等.一种新型膦酸锆孔材料的合成及其对金属离子的吸附性质[J].无机材料学报,2017,32(3):305-312.
[6] Savvin S B.Analytical use of arsenazo Ⅲ:determination of thorium,zirconium,uranium and rare earth elements[J].Talanta,1961,8(9):673-685.
[7] 吴王锁,Simoni E,Drot R.铀酰离子在TiO2表面的吸附[C].珠海:全国核化学与放射化学学术讨论会,2005.
[8] 贾云洁.分级介孔有机膦酸锆的合成、表征以及性能[D].北京:北京化工大学,2012.
