TY - JOUR
T1 - Human Hair Biogenic Fiber as a Biosorbent of Multiple Heavy Metals from Aqueous Solutions
AU - Zhang, Helan
AU - Carrillo-Navarrete, Fernando
AU - Palet-Ballús, Cristina
N1 - Funding Information:
This work was financially supported by the CTM2012-30970 and CTM2015-65414-C2-1-R Spanish research projects and by the European project ORQUE-SUDOE SOE3-P2-F591. Helan Zhang thanks to the China Scholarship Council for the grant [2001]3005. The authors are grateful to the UAB Microscopy Service for the SEM analysis and the Service of Analytical Chemistry for the analysis of FTIR. Also, authors are grateful to M. Resina who helped performing the analysis of heavy metals by ICP-MS.
Publisher Copyright:
© 2020 Taylor & Francis.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020
Y1 - 2020
N2 - Human hair natural fiber is mainly considered a waste in our society and its disposal can cause a major environmental impact. Hence, its valorization as a biosorbent of pollutants such as heavy metals is an interesting route to explore since it can reduce the amount of waste and at the same time contributes to the circular economy strategy. In this work, the ability of two kinds of human hairs, used as biosorbents to remove Cr(III), Ni(II), Co(II), Mn(II), Cu(II), Zn(II), Cd(II) and Pb(II) ions from multiple-metal aqueous solutions, were examined and compared under different operating conditions. The influence of the time, pH and initial metal concentration on the metal uptake were studied. The biosorption kinetics and isotherm were also modeled observing that pseudo-second-order kinetic model and Langmuir model fitted successfully experimental data. Moreover, biosorption process did not significantly modify the morphology and the chemical structure of the hair samples, which was proved by SEM and FT-IR studies. These kinetic results underline the satisfactory capacity of human hair for the biosorption of Pb(II), Cu(II) and Cr(II) (values up to 95%), pointing up the high efficacy of human hair for the removal of heavy metal ions from aqueous media.
AB - Human hair natural fiber is mainly considered a waste in our society and its disposal can cause a major environmental impact. Hence, its valorization as a biosorbent of pollutants such as heavy metals is an interesting route to explore since it can reduce the amount of waste and at the same time contributes to the circular economy strategy. In this work, the ability of two kinds of human hairs, used as biosorbents to remove Cr(III), Ni(II), Co(II), Mn(II), Cu(II), Zn(II), Cd(II) and Pb(II) ions from multiple-metal aqueous solutions, were examined and compared under different operating conditions. The influence of the time, pH and initial metal concentration on the metal uptake were studied. The biosorption kinetics and isotherm were also modeled observing that pseudo-second-order kinetic model and Langmuir model fitted successfully experimental data. Moreover, biosorption process did not significantly modify the morphology and the chemical structure of the hair samples, which was proved by SEM and FT-IR studies. These kinetic results underline the satisfactory capacity of human hair for the biosorption of Pb(II), Cu(II) and Cr(II) (values up to 95%), pointing up the high efficacy of human hair for the removal of heavy metal ions from aqueous media.
KW - biofibre
KW - biosorption
KW - Hair
KW - isotherms
KW - kinetics
KW - metals
UR - http://www.scopus.com/inward/record.url?scp=85089253465&partnerID=8YFLogxK
U2 - 10.1080/15440478.2020.1798841
DO - 10.1080/15440478.2020.1798841
M3 - Article
AN - SCOPUS:85089253465
JO - Journal of Natural Fibers
JF - Journal of Natural Fibers
SN - 1544-0478
ER -