Enhanced hybrid hydrogel based on wheat husk lignin-rich nanocellulose for effective dye removal

被引：4

作者：

Huang, Rong ^{[1
]}

Xu, Yong ^{[2
]}

Kuznetsov, Boris N. ^{[3
]}

Sun, Meitao ^{[1
]}

Zhou, Xin ^{[2
]}

Luo, Jing ^{[2
]}

Jiang, Kankan ^{[1
]}

机构：

[1] Hangzhou Med Coll, Sch Basic Med Sci & Forens Med, Hangzhou, Peoples R China

[2] Nanjing Forestry Univ, Coll Chem Engn, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Nanjing, Peoples R China

[3] Siberian Fed Univ, Inst Chem & Chem Technol, RAS, SB,KSC,FRC, Krasnoyarsk, Russia

来源：

FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY | 2023年 / 11卷

关键词：

dye; adsorption; hybrid hydrogel; lignin-rich nanocellulose; wheat husk; CELLULOSE; ADSORPTION; PRETREATMENT; KINETICS; ALCOHOL); WASTE; STRAW; ACID;

D O I：

10.3389/fbioe.2023.1160698

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Polyvinyl alcohol (PVA) hydrogels were enhanced mechanically through the addition of lignin-rich nanocellulose (LCN), soluble ash (SA) and montmorillonite (MMT) for dye removal. The hybrid hydrogels reinforced with 33.3 wt% of LCN had a 163.0% increase in storage modulus as compared to the PVA/0LCN-33.3SM hydrogel. LCN can be added to the PVA hydrogel to alter its rheological properties. Additionally, hybrid hydrogels were highly efficient in removing methylene blue from wastewater, which was attributed to the synergistic effects of the PVA matrix supporting embedded LCN, MMT, and SA. The adsorption time (0-90 min) showed that the hydrogels containing MMT and SA had high removal efficiency, and the adsorption of methylene blue (MB) by PVA/20LCN-13.3SM was greater than 95.7% at 30?. It was found that MB efficiency decreased with a high MMT and SA content. Our study provided a new method for the fabrication of polymers-based eco-friendly, low-cost and robust physical hydrogels for the MB removal.

引用

页数：9

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