Synthesis and characterization of porous boehmite AlOOH nanospindle via hydrothermal route and its application in Pb（Ⅱ） removal
作者单位：Key Laboratory of Soft Chemistry and Functional Materials Ministry of Education Nanjing University of Science and Technology Department of Chemical Engineering Huaihai Institute of Technology
会议名称：《中国化学会第十届全国无机化学学术会议》
会议日期：2019年
学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学]
关 键 词：porous boehmite AlOOH nanospindle Pb(Ⅱ) removal
摘 要：The controllable synthesis of boehmite AlOOH porous nanostructures is of great importance due to their wide potential applications in adsorbents, catalyst supports and so on. Herein we firstly fabricate boehmite AlOOH porous nanospindles through the hydrothermal reaction between Al（NO3）3·9 H2O and DMF with surfactant PVP. By parallel experiments, we found that the added amount of Al（NO3）3·9 H2O, reaction temperature and surfactant affect the products final morphology. Due to their porous nature, The Pb（II） adsorption behaviors of AlOOH products were evaluated. Results show that the best pH for adsorption is 5.0 and the adsorption equilibrium time is 120 min. The adsorption is an endothermic process and the saturated adsorption amount is 53.04 mg/g at 25 °C, suggesting their potential environmental application in Pb（II） removal from aqueous solutions.