Formation mechanism of a series of trigonal antiprismatic jarosite-type compounds
作者： Xin Yang , Meiying Zhu , Feifei Kang , Shanshan Cao , Rufen Chen
DOI: 10.1016/J.JCRYSGRO.2015.07.037
关键词:
摘要: Abstract Trigonal antiprismatic jarosite-type compounds were prepared by a simple, rapid and template-free synthetic route. The as-prepared samples characterized various techniques. results indicate that the formation of particle with trigonal morphology strongly depends on pH system. Trace Fe2+ ions enter crystal play role in development morphology. Based characterization data experimental observation, possible mechanism was clarified. Fe3+ firstly transformed to schwertmannite presence SO 4 2 − ions. When Na+ (K+ or NH + ) coexist system, is preferable transforming instead other iron oxides.
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