Entangled cellulose nanofibrils/nanosheets derived from native mexican agave for lead(II) ion removal

被引：16

作者：

Hernandez-Francisco, Elizabeth ^{[1
]}

Bonilla-Cruz, Jose ^{[1
]}

Marquez-Lamas, Uriel ^{[1
]}

Suarez-Jacobo, Angela ^{[2
]}

Longoria-Rodriguez, Francisco ^{[1
]}

Rivera-Haro, Julio ^{[1
]}

Russell, Paul ^{[3
]}

Ali, Zulfiqur ^{[4
]}

Yin, Chun-Yang ^{[5
]}

Lara-Ceniceros, Tania E. ^{[1
]}

机构：

[1] PIIT, CIMAV Unidad Monterrey, Adv Funct Mat & Nanotechnol Grp, Ctr Invest Mat Avanzados SC, Av Alianza Norte 202, Apodaca 66628, Nuevo Leon, Mexico

[2] PIIT, Ctr Invest & Asistencia Tecnol & Diseno Estado Ja, Via Innovac 404,Autopista Monterrey Aeropuerto Km, Apodaca 66628, Nuevo Leon, Mexico

[3] Teesside Univ, Sch Comp Engn & Digital Technol, Borough Rd, Middlesbrough TS1 3BA, Cleveland, England

[4] Univ Teesside, Healthcare Innovat Ctr, Sch Hlth & Life Sci, Middlesbrough TS1 3BX, Tees Valley, England

[5] Newcastle Univ Singapore, 537 Clementi Rd 06-01,SIT Bldg,Ngee Ann Polytech, Singapore 599493, Singapore

来源：

CELLULOSE | 2020年 / 27卷 / 15期

关键词：

Biosorbent; Heavy metal uptake; Cellulosic biomass; Nanobiomaterials; Microfluidizer; Adsorption mechanisms; AQUEOUS-SOLUTION; HEAVY-METALS; ADSORPTION; NANOCELLULOSE; CD(II); PB(II); NANOCRYSTALS; BIOSORPTION; WASTE; WOOD;

D O I：

10.1007/s10570-020-03373-6

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

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 usingAgave Tequilana Weber var. Azulleaves 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+(C-0 < 100 ppm), the adsorption-mechanism is governed by electrostatic interactions between carboxylate groups and Pb2+; meanwhile, at (C-0 = 1000 ppm) mono and bi-dentate complexes dominate the adsorption-mechanism. Finally, when 110 < C-0 < 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. [GRAPHICS] .

引用

页码：8785 / 8798

页数：14

共 52 条

[1]

Alle M, 2020, MICRO NANO TECHNOL, P41, DOI 10.1016/B978-0-12-817852-2.00003-2

[2] Adsorption Isotherm Predictions for Multiple Molecules in MOFs Using the Same Deep Learning Model [J].