title: Magnetic self-assembled zeolite clusters for sensitive detection and rapid removal of mercury(II).
abstract: We reported here the fabrication of a hierarchical mesoporous zeolite nanocomposite using 20 nm crystalline domins of zeolite L as building "bricks" by a simple and general one-step synthetic approach. By taking advantages of the large pore volumes, superparamagnetic iron oxide nanocrystals could be encapsulated into the nanocomposite conveniently for further facilitate separation and detection. In addition, by covalent coupling of fluorescent receptor (rhodamine-hydrazine), the combination of well-defined inorganic nanomaterials and organic receptors could be applied to selective detection of Hg(2+). Importantly, the unique adsorption capacity enabled by the hierarchical mesoporous zeolite and the efficient removal ability form complex multiphase systems by the magnetic characteristic made this multifunctional nanomaterial an excellent probe for detection, adsorption, and removal of Hg(2+) from waste aqueous solution.
authors: State Key Laboratory of Rare Earth Resources Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, PR China.
authors: Meili
authors: M
authors: Yin
authors: Zhenhua
authors: Z
authors: Li
authors: Zhen
authors: Z
authors: Liu
authors: Xinjian
authors: X
authors: Yang
authors: Jinsong
authors: J
authors: Ren
mesh_terms: D000327:Adsorption; D052918:Environmental Restoration and Remediation / Q000295:instrumentation* / Q000379:methods; D005290:Ferric Compounds / Q000737:chemistry; D005456:Fluorescent Dyes / Q000737:chemistry; D006834:Hydrazines / Q000737:chemistry; D008280:Magnetics; D008628:Mercury / Q000737:chemistry*; D053761:Nanocomposites / Q000737:chemistry; D012235:Rhodamines / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D017641:Zeolites / Q000737:chemistry*
chemical_list: D005290:Ferric Compounds; D005456:Fluorescent Dyes; D006834:Hydrazines; D012235:Rhodamines; D014874:Water Pollutants, Chemical; D017641:Zeolites; C000499:ferric oxide; C029424:hydrazine; D008628:Mercury