Synthesis and characterization of novel macroporous silica-polymer-calixcrown hybrid supramolecular recognition materials for effective separation of cesium.
Two novel macroporous silica-polymer-calixcrown hybrid supramolecular recognition materials, 25,27-bis(n-octyloxy)calix[4]arene-crown-6 (BnOCalix[4]C6)/SiO2-P and 25,27-bis(i-octyloxy)calix[4]arene-crown-6 (BiOCalix[4]C6)/SiO2-P were synthesized by in situ polymerization and impregnation techniques. The obtained materials were characterized by scanning electron microscope (SEM), particle size distribution, nitrogen adsorption-desorption isotherms, thermogravimetric analysis (TGA), Fourier transform infrared (FT-IR) spectroscopy, (29)Si solid-state NMR, and powder X-ray diffraction (XRD). The adsorption of some typical fission and non-fission products Na(I), K(I), Rb(I), Cs(I), Sr(II), Ba(II), La(III), Y(III), Pd(II), Ru(III), Zr(IV), and Mo(VI) onto BnOCalix[4]C6/SiO2-P and BiOCalix[4]C6/SiO2-P in HNO3 solution was investigated. The bleeding of the materials in HNO3 solution was evaluated by analysis of total organic carbon (TOC). BnOCalix[4]C6/SiO2-P and BiOCalix[4]C6/SiO2-P exhibited excellent adsorption ability and high selectivity for Cs(I) over all the other tested metals.
Department of Chemical and Biochemical Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, PR China. Electronic address: xiaoc@ihep.ac.cn.
Chengliang
C
Xiao
Department of Chemical and Biochemical Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, PR China. Electronic address: zhangay@zju.edu.cn.
Anyun
A
Zhang
Department of Chemical and Biochemical Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, PR China; Key Laboratory of Nuclear Radiation and Nuclear Energy Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China.
Zhifang
Z
Chai
D000327:Adsorption; D002586:Cesium / Q000302:isolation & purification*; D047248:Crown Compounds / Q000737:chemistry*; D007202:Indicators and Reagents; D009682:Magnetic Resonance Spectroscopy; D008670:Metals / Q000032:analysis / Q000302:isolation & purification; D008855:Microscopy, Electron, Scanning; D009566:Nitrates / Q000737:chemistry; D009584:Nitrogen / Q000737:chemistry; D009930:Organic Chemicals / Q000032:analysis; D010316:Particle Size; D058105:Polymerization; D011108:Polymers; D016062:Porosity; D012822:Silicon Dioxide / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013816:Thermodynamics; D013818:Thermogravimetry; D014961:X-Ray Diffraction
D047248:Crown Compounds; D007202:Indicators and Reagents; D008670:Metals; D009566:Nitrates; D009930:Organic Chemicals; D011108:Polymers; D002586:Cesium; D012822:Silicon Dioxide; D009584:Nitrogen
Adsorption; Calix[4]arene-crown; Cesium; Macroporous silica; Separation