在線閱讀 --自然科學版 2021年3期《鈦族金屬-對苯二甲酸框架材料對水溶液中染料和金屬離子的吸附性能》
鈦族金屬-對苯二甲酸框架材料對水溶液中染料和金屬離子的吸附性能--[在線閱讀]
莊景果, 過容利, 侯文平, 龐靖宇
河南大學 化學化工學院, 河南省多酸化學重點實驗室, 河南 開封 475004
起止頁碼: 290--297頁
DOI: 10.13763/j.cnki.jhebnu.nse.202103010
摘要
通過溶劑熱法合成了一系列高價態金屬源的金屬-有機框架材料(MOF).選取亞甲基藍(MB)和Cr(Ⅵ)為研究對象,研究MOF-Ti,MOF-Zr,MOF-Hf對染料和金屬離子的吸附效果,發現比表面積較大的Ti構筑的MOF-Ti吸附效果最優,討論了其動力學、等溫線和熱力學.通過改變吸附時間、初始濃度、pH、溫度等,探究MOF-Ti對MB和Cr(Ⅵ)的吸附規律與吸附機理.

ⅣB Metal-terephthalic Acid MOF for Adsorption of Dyes and Metal Ionic
ZHUANG Jingguo, GUO Rongli, HOU Wenping, PANG Jingyu
Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Henan Kaifeng 475004, China
Abstract:
In this paper,a series of metal organic frameworks(MOF) containing high valence state metal ionic (MOF-Ti,MOF-Zr and MOF-Hf) were synthesized by solvent thermal method.Methylene blue (MB) and Cr(Ⅵ) were selected as the target contaminants to investigate the adsorption behavior of MOF-Ti,MOF-Zr and MOF-Hf.It was found that the adsorption capacity of MOF-Ti was the highest due to the highest specific surface area.And its kinetics,isotherm and thermodynamics were discussed.The adsorption mechanism of MOF-Ti on MB and Cr(Ⅵ) was investigated by tuning the adsorption time,initial concentration,pH and temperature,etc.

收稿日期: 2020-11-03
基金項目: 中國博士后科學基金(2019M652518)

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