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Highly Effective Adsorption of Heavy Metal Ions from Aqueous Solutions by Macroporous Xylan-Rich Hemicelluloses-Based Hydrogel
Peng, Xin-Wen1; Zhong, Lin-Xin2; Ren, Jun-Li1,3; Sun, Run-Cang1,2
2012-04-18
发表期刊JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷号60期号:15页码:3909-3916
摘要Xylan-rich hemicelluloses-based hydrogel was developed as a novel porous bioadsorbent by graft co-polymerization of acrylic acid (AA) and xylan-rich hemicelluloses for adsorption of heavy metal ions (Pd2+, Cd2+, and Zn2+) from aqueous solutions. The chemical structure, the interaction between the hydrogel and metal ions, and the porous structure of xylan-rich hemicelluloses-g-AA hydrogel were revealed by Fourier transform infrared spectroscopy and scanning electron microscopy. The effects of AA and cross-linker dosage, pH value, contacting time, and initial concentration of metal ion on the adsorption capacity were studied. The adsorption equilibrium time was about 60 mm from the adsorption kinetics study. The maximum adsorption capacities of Pd2+, Cd2+, and Zn2+ were 859, 495, and 274 mg/g, respectively. Furthermore, xylan-rich hemicelluloses-g-AA hydrogel also exhibited highly efficient regeneration and metal ion recovery efficiency and can be reused without noticeable loss of adsorption capacity for Pd2+, Cd2+, and Zn2+ after quite a number of repeated adsorption/desorption cycles.
文章类型Article
关键词Xylan-rich Hemicelluloses Hydrogel Metal Ion Bioadsorbent Acrylic Acid
WOS标题词Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1021/jf300387q
研究领域[WOS]Agriculture ; Chemistry ; Food Science & Technology
关键词[WOS]POLY(ACRYLIC ACID) ; SWELLING BEHAVIOR ; ACRYLIC-ACID ; REMOVAL ; PB(II) ; CHITOSAN ; ADSORBENTS ; CELLULOSE ; POLYMER ; WASTES
收录类别SCI
语种英语
WOS类目Agriculture, Multidisciplinary ; Chemistry, Applied ; Food Science & Technology
WOS记录号WOS:000302887100013
引用统计
被引频次:107[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10589
专题中国科学院广州能源研究所
作者单位1.S China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Guangdong, Peoples R China
2.Beijing Forestry Univ, Inst Biomass Chem & Technol, Beijing 100083, Peoples R China
3.Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
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Peng, Xin-Wen,Zhong, Lin-Xin,Ren, Jun-Li,et al. Highly Effective Adsorption of Heavy Metal Ions from Aqueous Solutions by Macroporous Xylan-Rich Hemicelluloses-Based Hydrogel[J]. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,2012,60(15):3909-3916.
APA Peng, Xin-Wen,Zhong, Lin-Xin,Ren, Jun-Li,&Sun, Run-Cang.(2012).Highly Effective Adsorption of Heavy Metal Ions from Aqueous Solutions by Macroporous Xylan-Rich Hemicelluloses-Based Hydrogel.JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,60(15),3909-3916.
MLA Peng, Xin-Wen,et al."Highly Effective Adsorption of Heavy Metal Ions from Aqueous Solutions by Macroporous Xylan-Rich Hemicelluloses-Based Hydrogel".JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 60.15(2012):3909-3916.
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