Entangled cellulose nanofibrils/nanosheets derived from native mexican agave for lead(II) ion removal
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ORIGINAL RESEARCH
Entangled cellulose nanofibrils/nanosheets derived from native mexican agave for lead(II) ion removal Elizabeth Herna´ndez-Francisco . Jose´ Bonilla-Cruz . Uriel Ma´rquez-Lamas . ´ ngela Sua´rez-Jacobo . Francisco Longoria-Rodrı´guez . Julio Rivera-Haro . A Paul Russell . Zulfiqur Ali . Chun-Yang Yin . Tania E. Lara-Ceniceros
Received: 13 April 2020 / Accepted: 28 July 2020 Ó Springer Nature B.V. 2020
Abstract Cellulose nanofibrils (CNFs) produced from waste lignocellulosic biomass have emerged as a sustainable source material for high value-added applications. In the current study, previously unreported entangled cellulose nanofibril and nanosheet (CNF/CNS) were obtained using Agave Tequilana Weber var. Azul leaves by means of a microfluidization process. These nanomaterials were investigated as potential biosorbents of Pb2?, for which three adsorption mechanisms were identified by XPS. At low initial concentrations of Pb2? (C0 \ 100 ppm), the adsorption-mechanism is governed by electrostatic interactions between carboxylate groups and Pb2?;
meanwhile, at (C0 = 1000 ppm) mono and bi-dentate complexes dominate the adsorption-mechanism. Finally, when 110 \ C0 \ 1000 ppm, both mechanisms co-exist. The maximum adsorption capacity was 43.55 mg/g, according to the Langmuir model, while CNF/CNS showed the characteristic diffraction peaks of cellulose type II. Our results highlight the high potential of these novel CNF/CNS biosorbents in the treatment of wastewater contaminated with toxic metals and afford new insights on adsorption mechanisms.
E. Herna´ndez-Francisco J. Bonilla-Cruz U. Ma´rquez-Lamas F. Longoria-Rodrı´guez J. Rivera-Haro T. E. Lara-Ceniceros (&) Advanced Functional Materials and Nanotechnology Group, Centro de Investigacio´n en Materiales Avanzados S. C. (CIMAV-Unidad Monterrey) PIIT, Av. Alianza Norte 202, Autopista Monterrey-Aeropuerto Km 10, C.P.66628 Apodaca, Nuevo Leo´n, Mexico e-mail: [email protected]
P. Russell School of Computing, Engineering and Digital Technologies, Teesside University, Borough Road, Middlesbrough TS1 3BA, UK
´ . Sua´rez-Jacobo A Centro de Investigacio´n y Asistencia en Tecnologı´a y Disen˜o del Estado de Jalisco, A.C. Subsede Noreste, PIIT, Vı´a de la Innovacio´n 404, Autopista MonterreyAeropuerto Km 10, C.P.66628 Apodaca, Nuevo Leo´n, Mexico
C.-Y. Yin Newcastle University in Singapore, 537 Clementi Road #06-01, SIT Building @ Ngee Ann Polytechnic, Singapore 599493, Singapore
Z. Ali Healthcare Innovation Centre, School of Health and Life Sciences, Teesside University, Middlesbrough, Tees Valley TS1 3BX, UK
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Cellulose
Graphic abstract
Keywords Biosorbent Heavy metal uptake Cellulosic biomass Nanobiomaterials Microfluidizer Adsorption mechanisms
Introduction The isolation of cellulose nanofibrils (CNFs) derived from biomass has emerged in the past decade as a sustainable and environmental-friendly alternative of lignocellulosic-materials towards a multitude of industrial
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