Synthesis of Mg/Al double-layered hydroxides for boron removal

被引：9
作者：
Liu, Jie [1 ]
Guo, Xiuli [1 ]
Yuan, Junsheng [1 ]
机构：
[1] Hebei Univ Technol, Minist Educ, Engn Res Ctr Seawater Utilizat Technol, Tianjin, Peoples R China
来源：
DESALINATION AND WATER TREATMENT | 2014年 / 52卷 / 10-12期
关键词：
Boron; Mg/Al double-layered hydroxides; Adsorption; Co-precipitation; WATER;
D O I：
10.1080/19443994.2013.797925
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
About 5 mg/L boron are present in seawater. Excessive boron is harmful to living beings so, boron removal is extremely essential in seawater desalination process. Mg/Al double-layered hydroxides (Mg-Al-LDHs) materials, which show excellent boron removal properties, were synthesised by chemical co-precipitation method in this paper. The effects of molar ratio of Mg/Al, concentration of solution, reaction time and temperature, drying time and temperature on boron removal capacity were evaluated. All the experimental conditions had an influence on boron removal capacity by affecting the degree of crystallinity and crystallite size. The concentration of solution has a notable effect on boron adsorption property of LDHs. The products calcined in 450 degrees C had a better boron removal capacity. The best adsorption capacity for boron was 33 mg/g.
引用
收藏
页码：1919 / 1927
页数：9
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