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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
Source PublicationJOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume60Issue:15Pages:3909-3916
AbstractXylan-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.
SubtypeArticle
KeywordXylan-rich Hemicelluloses Hydrogel Metal Ion Bioadsorbent Acrylic Acid
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1021/jf300387q
WOS Subject ExtendedAgriculture ; Chemistry ; Food Science & Technology
WOS KeywordPOLY(ACRYLIC ACID) ; SWELLING BEHAVIOR ; ACRYLIC-ACID ; REMOVAL ; PB(II) ; CHITOSAN ; ADSORBENTS ; CELLULOSE ; POLYMER ; WASTES
Indexed BySCI
Language英语
WOS SubjectAgriculture, Multidisciplinary ; Chemistry, Applied ; Food Science & Technology
WOS IDWOS:000302887100013
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10589
Collection中国科学院广州能源研究所
Affiliation1.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
Recommended Citation
GB/T 7714
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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