物理化学学报2011，Vol.27Issue(7)：1763-1771,9.
十六烷基三甲基溴化铵插层α-磷酸锆复合物的合成、表征及其对酚的吸附机理
Preparation, Characterization and Adsorption Mechanism for Phenols of CTMAB-ZrP
摘要
Abstract
Cetyltrimethyl ammonium bromid (CTMAB)-ZrP complexes that contained different amounts of CTMAB that intercalate into α-zirconium phosphate were successfully prepared while methylamine weakened the interlayer forces in α-zirconium phosphate. The CTMAB-ZrP samples were characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and N2 sorption isotherm analysis. We discuss the arrangement of CTMAB in the interlayers of zirconium phosphate according to the characterization results.The results of the adsorption of phenol by CTMAB-ZrP showed that the amount of phenol adsorption depended on the content of CTMAB in the complex, the interlayer steric hindrance, and the pH value of the solution. The adsorption of phenol, 2-chlorophenol, 2,4-dichlorophenol, p-methylphenol, and 3,5dimethylphenol onto CTMAB-ZrP showed that the amount of adsorption correlated positively with the hydrophobicity of the phenols and it was not related to the acidity of the phenolic compounds. The sorption isotherms of phenol, 2-chlorophenol, and 2,4-dichlorophenol fit the Henry and Freundlich equations well.Therefore, the adsorption mechanism is mainly associated with the partition of different phenols in the organic phase of the intercalated CTMAB-ZrP.关键词
α-ZrP/十六烷基三甲基溴化铵/酚/吸附/分配Key words
α-ZrP/ Cetyltrimethyl ammonium bromid/ Phenol/ Adsorption/ Partition分类
化学化工引用本文复制引用
姚微,王红宁,王建伍,钟璟,陈若愚..十六烷基三甲基溴化铵插层α-磷酸锆复合物的合成、表征及其对酚的吸附机理[J].物理化学学报,2011,27(7):1763-1771,9.基金项目
江苏省自然科学基金(BK2008143)资助项目 （BK2008143）
