Development of Mag-FMBO in clay-reinforced KGM aerogels for arsenite removal

International Journal of Biological Macromolecules
Shuxin YeBin Li

Abstract

To seek high-efficient, convenient and robust methods to decontaminate water polluted by arsenite are critically in demand. Here, we developed a series of magnetic konjac glucomannan (KGM) aerogels as adsorbents for arsenite removal. These adsorbents were fabricated based on sodium montmorillonite (Na(+)-MMT) reinforced KGM matrix with magnetic Fe and Mn oxides (Mag-FMBO) inside. The obtained aerogels adsorbents were characterized by using compression test, thermo gravimetric analysis (TGA), vibrating sample magnetometer (VSM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM). The characteristic results showed that the composite aerogels possessed strong mechanical and magnetic property, excellent thermal characteristic and tunable pore structure. Batch adsorption tests were used to evaluate arsenite removal capacity. The adsorption results exhibited that the arsenite removal process was pH-dependent, followed a pseudo-second-order rate equation and Langmuir monolayer adsorption. The maximum arsenite uptake capacity of magnetic aerogels M1.5 reached 16.03mgg(-1) according to Langmuir isotherm at pH 7 and 323K. Besides, the magnetic composite aerogels can be repeatedl...Continue Reading

References

Aug 16, 2000·Journal of Colloid and Interface Science·H Wijnja, C P Schulthess
Jul 13, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Ian J Bruce, Tapas Sen
Jun 25, 2008·Bioresource Technology·B Stephen InbarajB H Chen
May 2, 2009·Journal of Colloid and Interface Science·Gaosheng ZhangJiuhui Qu
Jan 24, 2015·Journal of Colloid and Interface Science·Wei ChengJinjun Li
Oct 3, 2015·Carbohydrate Polymers·Khalid Z Elwakeel, Eric Guibal

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Citations

Aug 6, 2016·International Journal of Biological Macromolecules·Shuxin YeBin Li
Oct 30, 2016·International Journal of Biological Macromolecules·Shuxin YeBin Li
Oct 28, 2017·International Journal of Molecular Sciences·Dan YangYafeng Zheng
Jul 6, 2020·Environmental Science and Pollution Research International·Yaoning ChenMeiling Li

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