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New Route to the Charged Functional Assisted Nano-Lanthanum Hydroxide Composite with Superior Lead Sorption Capacities
Teng, Jie1; Zhang, Qingrui1; Yang, Qinggang1; Wang, Zikang1; Jiao, Tifeng1; Peng, Qiuming2; Chen, Youpeng3
2015-09-01
摘要Heavy metal removal in waters is a serious environmental issues, in the present study, a new nanocomposite (0001-La(OH)(3)) was prepared by encapsulated nano-La(OH)(3) particles onto polymeric porous cationic exchanger 0001 for enhanced lead sequestration. The removal of lead ions onto D001-La(OH)(3) is pH-dependent process with the optimal sorption pH ranging from 4.5 to 5.8 and the resulting D001-La(OH)(3) exhibits strong sorption selectivity and superior sorption capacities (336 mg/g), which can be mainly ascribed to the formation of strong inner sphere complexation between nano-La(OH)3 and lead ions and high charged sulfonate group (SO3-H) diffusion enrichment effects towards lead ions: Moreover, D001-La(OH)3 also presents rapid sorption kinetics and efficient column applicability. Particularly, the used hybrid material can be readily regenerated by 0.5% HNO3 and 10% NaCl mixtures. All the results demonstrate that the new nanomaterial D001-La(OH)(3) is a promising candidate for lead sequestration enhancement.
关键词Heavy Metal Hybrid Nanoparticles Polymer
DOI10.1166/sam.2015.2393
发表期刊Science of Advanced Materials
ISSN1947-2935
卷号7期号:9页码:1722-1729
通讯作者Zhang, QR (reprint author), Yanshan Univ, Sch Environm & Chem Engn, Hebei Key Lab Appl Chem, Qinhuangdao 066004, Peoples R China.
收录类别SCI
WOS记录号WOS:000364108200008
语种英语