title: Preparation, characterization and application of p-tert-butyl-calix[4]arene-SBA-15 mesoporous silica molecular sieves.
abstract: p-tert-Butyl-calix[4]arene-SBA-15 mesoporous silica molecular sieves have been prepared and characterized by Fourier transform infrared (FT-IR) spectroscopy, powder X-ray diffraction (XRD) and nitrogen adsorption-desorption measurements. FT-IR spectra showed the presence of methylene (-CH(2)-), methyl (-CH(3)) and phenyl bands on the modified SBA-15. Powder XRD data indicated the structure of p-tert-butyl-calix[4]arene-SBA-15 remained the host SBA-15 structure. Brunauer-Emmett-Teller (BET) surface area analysis revealed a decrease in surface area and pore size. The adsorption capacity of the materials to diethylstilbestrol and bisphenol A was studied via the dynamic adsorption experiments. The maximum dynamic adsorption capacity on modified materials was 34.8 and 2.9 times higher than SBA-15 particles for diethylstilbestrol and bisphenol A, respectively. The results indicated that p-tert-butyl-calix[4]arene-SBA-15 particles could be used to the enrich the various compounds in water samples before the further analysis.
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 730000, China.
authors.forename: Huayu
authors.initials: H
authors.lastname: Huang
authors.forename: Chuande
authors.initials: C
authors.lastname: Zhao
authors.forename: Yongsheng
authors.initials: Y
authors.lastname: Ji
authors.forename: Rong
authors.initials: R
authors.lastname: Nie
authors.forename: Pan
authors.initials: P
authors.lastname: Zhou
authors.forename: Haixia
authors.initials: H
authors.lastname: Zhang
mesh_terms: D000327:Adsorption; D001559:Benzhydryl Compounds; D047250:Calixarenes / Q000138:chemical synthesis* / Q000737:chemistry*; D002850:Chromatography, Gel; D004054:Diethylstilbestrol / Q000737:chemistry; D052244:Endocrine Disruptors / Q000737:chemistry; D007202:Indicators and Reagents; D009584:Nitrogen / Q000737:chemistry; D010636:Phenols / Q000737:chemistry; D016062:Porosity; D012822:Silicon Dioxide / Q000138:chemical synthesis* / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction; D000098826:Bisphenol A Compounds
chemical_list: D001559:Benzhydryl Compounds; D047250:Calixarenes; D004054:Diethylstilbestrol; D052244:Endocrine Disruptors; D007202:Indicators and Reagents; D009584:Nitrogen; D010636:Phenols; D012822:Silicon Dioxide; C509969:SBA-15; C525100:para-tert-butylcalix(4)arene; C006780:bisphenol A; D000098826:Bisphenol A Compounds