Chitosan Functionalized with 2-Methylpyridine Cross-Linker Cellulose to Adsorb Pb(II) from Water

被引：14

作者：

Lozano-Montante, Jorge ^{[1
]}

Garza-Hernandez, Raquel ^{[2
]}

Sanchez, Mario ^{[2
]}

Moran-Palacio, Edgar ^{[3
]}

Nino-Medina, Guillermo ^{[4
]}

Almada, Mario ^{[3
]}

Hernandez-Garcia, Luis ^{[1
]}

机构：

[1] Tecnol Nacl Mexico, IT Nuevo Leon, Ctr Invest & Innovac Tecnol, PIIT, Av Alianza 507, Apodaca 66628, Nuevo Leon, Mexico

[2] Ctr Invest Mat Avanzados, Alianza Norte 202,Parque Invest & Innovac Tecnol, Apodaca 66628, Nuevo Leon, Mexico

[3] Univ Sonora, Dept Ciencias Quimicobiol & Agr, Lazaro Cardenas 100, Navojoa 85880, Sonora, Mexico

[4] Univ Autonoma Nuevo Leon, Lab Quim & Bioquim, Fac Agron, Francisco Villa S-N, Gen Escobedo 66050, Nuevo Leon, Mexico

来源：

POLYMERS | 2021年 / 13卷 / 18期

关键词：

adsorption; isotherms; kinetics; chitosan; cellulose; METAL-IONS; AQUEOUS-SOLUTIONS; XPS ANALYSIS; LEAD; ADSORPTION; REMOVAL; CADMIUM; MECHANISMS; COMPLEXES; COMPOSITE;

D O I：

10.3390/polym13183166

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In this study, chitosan was chemically modified with 2-methylpyridine. Subsequently, the modified chitosan was cross-linked to cellulose using succinic anhydride. Additionally, the capacity of cellulose derivatives to adsorb Pb(II) ions in an aqueous solution was studied through the determination of Pb(II) ions concentration in water, using microwave plasma atomic emission spectroscopy (MP-AES). A maximum adsorption capacity of 6.62, 43.14, 60.6, and 80.26 mg/g was found for cellulose, cellulose-succinic acid, cellulose-chitosan, and cellulose-chitosan-pyridine, respectively. The kinetic data analysis of the adsorption process showed a pseudo-second-order behavior. The increase in metal removal from water is possibly due to metal chelation with the carbonyl group of succinic acid, and the pyridine groups incorporated into chitosan.

引用

页数：19

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