PREPARATION AND CHARACTERIZATION OF MODIFIED STARCH FOR ECOLOGICAL APPLICATION

被引：0
|
作者：
Caltova, Kristyna [1 ]
Sarka, Evzen [1 ]
Smrckova, Petra [1 ]
Marek, Ivo [2 ]
Bleha, Roman [1 ]
Fila, Vlastimil [3 ]
Lhotka, Miloslav [3 ]
机构：
[1] Univ Chem & Technol, Dept Carbohydrates & Cereals, Tech 5, Prague 16628 6, Czech Republic
[2] Univ Chem & Technol, Cent Labs, Tech 5, Prague 16628 6, Czech Republic
[3] Univ Chem & Technol, Dept Inorgan Technol, Tech 5, Prague 16628 6, Czech Republic
来源：
PROCEEDINGS OF THE 17TH INTERNATIONAL CONFERENCE ON POLYSACCHARIDES-GLYCOSCIENCE, 2021 | 2021年
关键词：
AQUEOUS-SOLUTIONS; METAL-IONS; ADSORPTION; REMOVAL;
D O I：
暂无
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
A modified starch for the adsorption of lead ions was synthesized, and its adsorption capacity was determined by atomic absorption spectrometry. The concentration of Pb2+ in a solution decreased by 16 mg/dm(3) in 16 min for absorbent dosing of 100 mg/dm(3). The specific surface area of the adsorbent was measured by one-point BET analysis, which showed that the adsorption proceeded on the surface of the starch particles. Furthermore, the change in viscosity of cross-linked starch dispersions on temperature was evaluated by RVA viscometer, the size of particles and their pores were studied by microscopic methods, and FTIR spectra of individual reaction products in the preparation of the modified starch were also analysed.
引用
收藏
页码：120 / 126
页数：7
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