Preparation of a cellulosic adsorbent by functionalization with pyridone diacid for removal of Pb(II) and Co(II) from aqueous solutions

被引：27
作者：
Sun, Chang [1 ]
Ni, Jiadong [1 ]
Zhao, Chunyan [1 ]
Du, Jinmei [1 ]
Zhou, Change [1 ]
Wang, Shugen [1 ]
Xu, Changhai [1 ]
机构：
[1] Jiangnan Univ, Coll Text & Clothing, Minist Educ, Key Lab Ecotext, Wuxi 214122, Jiangsu, Peoples R China
来源：
CELLULOSE | 2017年 / 24卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Cellulosic adsorbent; Pyridone diacid; Heavy metals; Adsorption; HEAVY-METAL IONS; WASTE-WATER; SELECTIVE ADSORPTION; COMPOSITE; DERIVATIVES; RECOVERY; ACETATE; FIBER; DYES;
D O I：
10.1007/s10570-017-1519-z
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：
A cellulosic adsorbent (PDA-MCC) was prepared by halogenation of microcrystalline cellulose (MCC) and functionalized with pyridone diacid (PDA) for removing lead and cobalt ions from aqueous solutions. PDA-MCC was characterized by Fourier transform infrared spectroscopy, scanning electron microscope, and thermal gravimetric analysis. The performance of PDA-MCC in removing lead and cobalt ions was examined by investigating the adsorption behaviors of lead and cobalt ions on PDA-MCC. Results from the adsorption of lead and cobalt ions on PDA-MCC showed that the adsorption kinetics followed the pseudo-second-order kinetic model, and the adsorption isotherms could be described by the Langmuir model. The maximum adsorption capacities of PDA-MCC towards lead and cobalt ions were determined to be 177.75 and 122.70 mg/g, respectively, which are greater than those of most reported cellulosic adsorbents. The reusable experiment showed that PDA-MCC could be regenerated in an acid solution, and had the adsorption capacities remained greater than 75% even after five cycles of regeneration.
引用
收藏
页码：5615 / 5624
页数：10
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