Synthesis of glutamate intercalated Mg-Al layered double hydroxides: influence of stirring and aging time

被引：5
|
作者：
Wu, Wei [1 ]
Song, Liang [1 ]
Li, Yu-Chao [2 ]
Zhang, Fen [1 ]
Zeng, Rong-Chang [1 ]
Li, Shuo-Qi [1 ]
Zou, Yu-Hong [3 ]
机构：
[1] Shandong Univ Sci & Technol, Coll Mat Sci & Engn, Corros Lab Light Met, Qingdao, Peoples R China
[2] Liaocheng Univ, Sch Mat Sci & Engn, Liaocheng, Shandong, Peoples R China
[3] Shandong Univ Sci & Technol, Coll Chem & Environm Engn, Dept Bioengn, Qingdao, Peoples R China
来源：
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY | 2021年 / 42卷 / 14期
基金：
中国国家自然科学基金;
关键词：
Layered double hydroxide; glutamic acid; intercalation; thermal decomposition; adsorption performance; CORROSION-RESISTANCE; RELEASE; PROPERTY; COATINGS; FILMS; AZ31;
D O I：
10.1080/01932691.2020.1806862
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
An Mg-Al layered double hydroxides (LDHs) intercalated by glutamate ions (Glu/LDH) was obtained using co-precipitation processing. The influence of stirring and aging time on LDH morphology was investigated. The morphology of LDH was characterized by means of XRD, FT-IR, FE-SEM and XPS. The thermal stability, pore volume and specific surface area were probed through thermal gravimetric (TG) analysis and automatic specific surface area analyzer, respectively. The results showed that the stirring and aging time had an insignificant influence on the interlayer distance of Glu/LDH; while it had a critical impact on the crystallinity degree of the Glu/LDH structure. TG analysis designated that the thermal stability of glutamate ion intercalated in LDH layers was higher than that of glutamate ion before intercalation. Glu/LDH exhibited the best adsorption performance at a stirring and aging time of 12 h. A schematic molecular structure model of Glu/LDH was proposed.
引用
收藏
页码：2154 / 2162
页数：9
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