The monodisperse and water-soluble YVO4: Eu nanoparticles (NPs) with uniform size and shape were synthesized by a facile and environmentally friendly co-precipitation at room temperature with poly(acrylic acid) (PAA) as surfactant and water as solvent. The morphology of the obtained YVO4: Eu NPs is sphere-like with a diameter of about 38 nm. Intense red emission from NPs is achieved under ultraviolet (UV) excitation. The intense red emission could be selectively quenched by Cu2+ ions with limit of detection (LOD) as low as 0.57 mu M in aqueous solution. The emission quenched by Cu2+ ions would be recovered when adding ethylenediamine tetraacetic acid ( EDTA), due to the strong interaction between Cu2+ ions and EDTA. These results indicate that the NPs would be a potential sensor for detecting Cu2+ ions in aqueous solution.
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Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, JapanTohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan
Nakashima, Kouichi
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Petrykin, Valery
Thongtem, Somchai
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Chiang Mai Univ, Fac Sci, Dept Phys, Chiang Mai 50200, ThailandTohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan
Thongtem, Somchai
Kakihana, Masato
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Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan
Chiang Mai Univ, Fac Sci, Dept Phys, Chiang Mai 50200, ThailandTohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan
机构:
Chinese Acad Sci, Ctr Macromol Sci, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R China
Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R ChinaChinese Acad Sci, Ctr Macromol Sci, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R China
Wang, Yu
Feng, Yujun
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Chinese Acad Sci, Ctr Macromol Sci, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R ChinaChinese Acad Sci, Ctr Macromol Sci, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R China
Feng, Yujun
Wang, Biqin
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Chinese Acad Sci, Ctr Macromol Sci, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R ChinaChinese Acad Sci, Ctr Macromol Sci, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R China
Wang, Biqin
Lu, Zhiyong
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Chinese Acad Sci, Ctr Macromol Sci, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R ChinaChinese Acad Sci, Ctr Macromol Sci, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R China