Ultrasound-enhanced milling in the synthesis of phase-pure, highly crystalline ZnAl-layered double hydroxide of low Zn（II） content

作     者：M.Szabados Cs. Bus M. Adok-Sipiczki Z. Konya A. Kukovecz P. Sipos I. Palinko 

作者机构：Department Qf Organic Chemistry University of Szeged Domter 8 Szeged H-6720 Hungary Material and Solution Structure Research Group Institute of Chemistry University of Szeged Aradi Vertanflk tere 1 Szeged H-6720 Hungary Department of Applied and Environmental Chemistry University of Szeged Rerrich B. ter 1 Szeged H-6720. Hungary MTA-SZTE Reaction Kinetics and Surface Chemistry Research Croup Rerrich B ter 1 Szeged H-6720 Hungary MTA-SZTE "Lendulet" Porous Nanocomposites Research Group Rerrich B. ter 1 Szeged H-6720 Hungary Department of lnorganic and Analytical Chemistry University of Szeged Domter 7 Szeged H-6720 Hungary 

出 版 物：《Particuology》 (颗粒学报（英文版）)

年 卷 期：2016年第14卷第4期

页      面：29-33页

核心收录：

学科分类：081704[工学-应用化学] 081705[工学-工业催化] 07[理学] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 070301[理学-无机化学] 

基　　金：supported by the National Science Fund of Hungary through grant OTKA NKFI 

主　　题：ZnAl layered double hydroxide Dry milling Ultrasonic irradiation 

摘      要：Dry milling followed by ultrasonic irradiation in the presence of small amounts of aqueous NaOH, was used to synthesise ZnAl-layered double hydroxide （LDH）. The synthetic conditions were optimised and the Zn（OH）2, ZnO, and AI（OH）3 contaminants were removed by rinsing with aqueous NH3 solution from the sample prepared in the optimum conditions. Thus, phase-pure ZnAl-layered double hydroxide was obtained with high crystallinity. All materials produced during the syntheses were characterised by X- ray diffractometry, and a rose-like morphology was observed by scanning electron microscopy in the phase-pure sample. By changing the initial Zn/Al ratio, it was revealed that an LDH with low zinc content was always formed, probably through substitution of some of the Zn2. ions by AI3. ions in the gibbsite lattice.