Synthesis Fe3O4/Talc nanocomposite by coprecipition-ultrasonication method and advances in hexavalent chromium removal from aqueous solution

Adsorption Science and Technology - Tập 38 Số 9-10 - Trang 483-501 - 2020
Huong Nguyen Thi1, Nguyễn Ngọc Sơn1, Vo Hoang Phuong1, Công Tiến Dũng2,1, Phạm Thị Mai Hương3,1, Lê Thanh Sơn1
1Faculty of Chemistry, VNU University of Science, Hanoi, Vietnam
2Department of Chemistry, Faculty of Basic Science, Hanoi University of Mining and Geology, Hanoi, Vietnam; Faculty of Chemistry, VNU University of Science, Hanoi, Vietnam
3Faculty of Chemical Technology, Hanoi University of Industry, Hanoi, Vietnam; Faculty of Chemistry, VNU University of Science, Hanoi, Vietnam

Tóm tắt

The Fe3O4/Talc nanocomposite was synthesized by the coprecipitation-ultrasonication method. The reaction was carried out under a inert gas environment. The nanoparticles were characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), fourier-transform infrared spectroscopy (FT-IR) and vibrating sample magnetometry techniques (VSM), the surface area of the nanoparticles was determined to be 77.92 m2/g by Brunauer-Emmett-Teller method (BET). The kinetic data showed that the adsorption process fitted with the pseudo-second order model. Batch experiments were carried out to determine the adsorption kinetics and mechanisms of Cr(VI) by Fe3O4/Talc nanocomposite. The adsorption process was found to be highly pH-dependent, which made the material selectively adsorb these metals from aqueous solution. The isotherms of adsorption were also studied using Langmuir and Freundlich equations in linear forms. It is found that the Langmuir equation showed better linear correlation with the experimental data than the Freundlich. The thermodynamics of Cr(VI) adsorption onto the Fe3O4/Talc nanocomposite indicated that the adsorption was exothermic. The reusability study has proven that Fe3O4/Talc nanocomposite can be employed as a low-cost and easy to separate.

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Tài liệu tham khảo

10.1016/j.seppur.2012.12.007

10.1016/j.jenvman.2007.01.005

10.1080/09593330.2011.560615

10.1016/j.cej.2015.07.008

Clesceri LC, 1998, Standard Methods for the Examination of Water and Wastewater, 20

10.1016/j.jcis.2014.10.019

10.1021/cm060805r

10.1016/j.jiec.2012.08.001

10.1016/j.jhazmat.2006.11.041

Ge P, 2011, Polish Journal of Environmental Studies, 20, 339

10.1016/j.jhazmat.2011.09.082

10.1016/j.cej.2014.05.074

10.1016/j.seppur.2004.01.008

10.1016/j.jcis.2009.09.065

Ho Y-S (1995) Absorption of Heavy Metals From Waste Streams by Peat. Birmingham: University of Birmingham.

10.1016/j.jhazmat.2010.05.119

10.3233/MGC-170228

10.1016/j.seppur.2012.02.010

10.1016/j.talanta.2012.03.035

10.1016/j.porgcoat.2019.105246

10.1016/j.porgcoat.2019.06.045

10.1016/j.porgcoat.2019.105283

10.3390/ijms150712913

Kalantari K, 2013, International Journal of Nanomedicine, 8, 1817

10.1021/cr068445e

10.2298/JSC140718116L

Ligate FJ, 2015, Tanzania Journal of Science, 41, 90

Lofrano G, Libralato G, Brown J (2017) Nanotechnologies for Environmental Remediation. Berlin: Springer.

10.1016/j.jcis.2013.11.044

10.1007/s11814-019-0328-5

10.1016/j.jhazmat.2006.05.051

10.1177/0263617418815272

10.1016/j.jenvman.2009.12.003

Ossman M, 2014, Bulgarian Chemical Communications, 3, 629

10.2174/157341311795542426

10.1016/B978-0-444-53599-3.10021-6

10.1080/19443994.2012.720112

10.1016/j.jcis.2015.12.008

Sani HA, Ahmad MB, Saleh T (2016) Synthesis of zinc oxide/talc nanocomposite for enhanced lead adsorption from aqueous solutions. RSC Advance, 6: 108819–108827.

Sueker JK, 2005, Environmental Forensics 5:, 81

10.1021/ja026501x

Thajeel AS, 2013, Aquatic Science and Technology, 1, 53

10.1515/pac-2014-1117

10.1016/j.matchemphys.2015.08.010

10.1088/1757-899X/392/3/032029

10.1016/j.proeng.2011.12.498

WHO (2003) Chromium in drinking-water: Background document for development of WHO guidelines for drinking-water quality. Available at: WHO/SDE/WSH/03.04/04

Wilbur S, 2000, Public Health Service, Agency for Toxic Substances Disease Registry, pp, 1

10.1021/cm051370v

10.1023/B:SCIE.0000013305.99473.cf

10.4067/S0717-97072012000100002

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Adsorption Science and Technology

Tập 38 Số 9-10

483-501

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