Highly Effective Removal of Methylene Blue Using a Chemi-Mechanical Pretreated Cellulose-based Superabsorbent Hydrogel

被引：14

作者：

Lin, Yan ^{[1
,2
,3
,4
,5
]}

Fang, Guigan ^{[1
,2
,3
,4
,5
]}

Deng, Yongjun ^{[1
,2
,3
,4
,5
]}

Shen, Kuizhong ^{[1
,2
,3
,4
,5
]}

Wu, Ting ^{[1
,2
,3
,4
,5
]}

Li, Man ^{[1
,2
,3
,4
,5
]}

机构：

[1] CAF, Inst Chem Ind Forestry Prod, Nanjing 210042, Jiangsu, Peoples R China

[2] Key Lab Biomass Energy & Mat, Nanjing 210042, Jiangsu, Peoples R China

[3] Natl Engn Lab Biomass Chem Utilizat, Nanjing 210042, Jiangsu, Peoples R China

[4] SFA, Key & Open Lab Forest Chem Engn, Nanjing 210042, Jiangsu, Peoples R China

[5] Nanjing Forestry Univ, Collaborat Innovat Ctr High Efficient Proc & Util, Nanjing 210037, Jiangsu, Peoples R China

来源：

BIORESOURCES | 2018年 / 13卷 / 04期

关键词：

Cellulose; Superabsorbent hydrogel; Adsorption; Methylene blue; DYE ADSORPTION; KINETICS; ADSORBENTS; EQUILIBRIUM; COMPOSITE; CAPACITY; ALGINATE; CHITOSAN; AEROGELS;

D O I：

10.15376/biores.13.4.8709-8722

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：

Eucalyptus bleached chemical pulp was fibrillated using a PFI pulp beater and ball mill method and was modified by acryloyl chloride. A novel porous cellulose-based hydrogel was prepared from the modified cellulose and acrylic acid for the removal of methylene blue (MB) from aqueous solution. The structure and morphology of the hydrogel were characterized by Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM), respectively. The influence of various parameters, such as pH value, hydrogel dosage, initial MB concentration, and contact time on the dye adsorption, were investigated. The equilibrium experimental data fitted well to the Langmuir isotherm model, and the maximum adsorption capacity of the hydrogel reached 3003 mg/g. In addition, the reusability study suggested that the hydrogel showed great adsorption capacity and a high removal ratio, even after the 5th adsorption-desorption cycle. Thus, the modified cellulosebased hydrogel is a potential superabsorbent for the removal of MB from wastewater.

引用

页码：8709 / 8722

页数：14

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