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Citric Acid Enhanced Copper Removal by a Novel Multi-amines Decorated Resin
Ling, C; Liu, FQ; Pei, ZG; Zhang, XP; Wei, MM; Zhang, YH; Zheng, LR; Zhang, J; Li, AM; Xing, BS; Zheng LR(郑黎荣); Zhang J(张静)
2015
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume5Pages:9944
SubtypeArticle
AbstractCu removal by a novel multi-amines decorated resin (PAMD) from wastewater in the absence or presence of citric acid (CA) was examined. Adsorption capacity of Cu onto PAMD markedly increased by 186% to 5.07 mmol/g in the presence of CA, up to 7 times of that onto four commercial resins under the same conditions. Preloaded and kinetic studies demonstrated adsorption of [Cu-CA] complex instead of CA site-bridging and variations of adsorbate species were qualitatively illustrated. The interaction configuration was further studied with ESI-MS, FTIR, XPS and XANES characterizations. The large enhancement of Cu adsorption in Cu-CA bi-solutes systems was attributed to mechanism change from single-site to dual-sites interaction in which cationic or neutral Cu species (Cu2+ and CuHLo) coordinated with neutral amine sites and anionic complex species (CuL- and Cu2L22-) directly interacted with protonated amine sites via electrostatic attraction, and the ratio of the two interactions was approximately 0.5 for the equimolar bi-solutes system. Moreover, commonly coexisting ions in wastewaters had no obvious effect on the superior performance of PAMD. Also, Cu and CA could be recovered completely with HCl. Therefore, PAMD has a great potential to efficiently remove heavy metal ions from wastewaters in the presence of organic acids.
Subject AreaScience & Technology - Other Topics
DOI10.1038/srep09944
Indexed BySCI ; ADS
Language英语
WOS Research AreaMultidisciplinary Sciences
WOS SubjectScience & Technology - Other Topics
WOS IDWOS:000354309800001
ADS Bibcode2015NatSR...5E9944L
ADS URLhttps://ui.adsabs.harvard.edu/abs/2015NatSR...5E9944L
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2015NatSR...5E9944L/citations
Citation statistics
Cited Times:7 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/228528
Collection多学科研究中心
Recommended Citation
GB/T 7714
Ling, C,Liu, FQ,Pei, ZG,et al. Citric Acid Enhanced Copper Removal by a Novel Multi-amines Decorated Resin[J]. SCIENTIFIC REPORTS,2015,5:9944.
APA Ling, C.,Liu, FQ.,Pei, ZG.,Zhang, XP.,Wei, MM.,...&张静.(2015).Citric Acid Enhanced Copper Removal by a Novel Multi-amines Decorated Resin.SCIENTIFIC REPORTS,5,9944.
MLA Ling, C,et al."Citric Acid Enhanced Copper Removal by a Novel Multi-amines Decorated Resin".SCIENTIFIC REPORTS 5(2015):9944.
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