Enhanced boron adsorption onto synthesized MgO nanosheets by ultrasonic method

被引：58
作者：
Li, Ping [1 ,2 ]
Liu, Chuang [1 ,2 ,3 ]
Zhang, Li [3 ]
Zheng, Shili [1 ,2 ]
Zhang, Yi [1 ,2 ]
机构：
[1] Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
[2] Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
[3] Gen Res Inst Nonferrous Met, Div Rare Met Mat & Met, Beijing 100008, Peoples R China
来源：
ULTRASONICS SONOCHEMISTRY | 2017年 / 34卷
关键词：
Ultrasonication; Boron adsorption; Magnesium oxide nanosheets; Adsorption mechanism; AQUEOUS-SOLUTIONS; REMOVAL; EXFOLIATION;
D O I：
10.1016/j.ultsonch.2016.07.029
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
MgO nanosheets with high adsorption performance were fabricated by an ultrasonic method. It was revealed that, nest-like MgO was formed from the magnesium salt solution precipitation and further calcination. Then the nest-like MgO was exfoliated by ultrasonic waves to obtain MgO nanosheets with approximately a lateral of 200-600 nm and a thickness of 10 nm. Adjusting the ultrasonic time and power, the specific surface areas of MgO nanosheets could be tuned in a range of 79-168 m(2)/g. The synthesized MgO nanosheets were used as adsorbents to remove boron from aqueous solution, and the maximum boron adsorption capacity of these MgO nanosheets reached 87 mg g(-1). The high uptake capability of the MgO nanosheets makes it potentially adsorbent for the removal of boron from wastewaters. (C) 2016 Elsevier B.V. All rights reserved.
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收藏
页码：938 / 946
页数：9
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