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Controlled Synthesis and Selective Adsorption Properties of Pr2CuO4 Nanosheets: a Discussion of Mechanism

Liu, Xuanwen ; Ni, Zhiyuan ; Xie, Chengzhi ; Wang, Renchao ; Guo, Rui

Nanoscale research letters, 2018-09, Vol.13 (1), p.1-11, Article 268 [Periódico revisado por pares]

New York: Springer US

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Título:
Controlled Synthesis and Selective Adsorption Properties of Pr2CuO4 Nanosheets: a Discussion of Mechanism
Autor: Liu, Xuanwen ; Ni, Zhiyuan ; Xie, Chengzhi ; Wang, Renchao ; Guo, Rui
Assuntos: Adsorbents ; Adsorption ; Chemistry and Materials Science ; Coordination compound methods (CCMs) ; Coordination compounds ; Density functional theory (DFT) ; Electron microscopes ; Hydrogen bonds ; Malachite green ; Malachite green(MG) ; Materials Science ; Microscopy ; Molecular Medicine ; Nano Express ; Nanochemistry ; Nanoscale Science and Technology ; Nanostructure ; Nanotechnology ; Nanotechnology and Microengineering ; Photoelectron spectroscopy ; Pr2CuO4 ; Praseodymium oxide ; Reflectance ; Scanning electron microscopy ; Selective adsorption ; Thickness ; Transmission electron microscopy ; X ray photoelectron spectroscopy ; X-ray diffraction
É parte de: Nanoscale research letters, 2018-09, Vol.13 (1), p.1-11, Article 268
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
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Descrição: Tetragonal-phase Pr 2 CuO 4 nanosheets with a thickness of about 60 nm were synthesized using the coordination compound methods (CCMs), then used as highly efficient selective adsorbent towards malachite green (MG) in aqueous solutions. The Pr 2 CuO 4 samples were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), UV-Vis diffuse reflectance spectrum (DRS), and standard Brunauer–Emmett–Teller (BET) methods. The maximum adsorption capacity ( Q m ) of as-prepared samples was determined by adsorption isotherms with different adsorbent doses ( m ) of 0.03–0.07 g at 298, 318, and 338 K based on the Langmuir model. When m < 0.03 g or > 0.07 g, effects of systemic mass loss and particle aggregation were discussed on the data deviation from the Langmuir model at 298 K. Based on the hydrogen bond and coordination bond, a possible mechanism of selective adsorption of MG by Pr 2 CuO 4 is proposed, which was further verified by the adsorption experiments of CuO and Pr 2 O 3 towards MG and competing-ion experiments. Finally, the theoretic studies were performed at DFT level to reveal the possible adsorption process.
Editor: New York: Springer US
Idioma: Inglês

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Controlled Synthesis and Selective Adsorption Properties of Pr2CuO4 Nanosheets: a Discussion of Mechanism

Liu, Xuanwen ; Ni, Zhiyuan ; Xie, Chengzhi ; Wang, Renchao ; Guo, Rui

New York: Springer US

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