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Morphological synthesis of Prussian blue analogue Zn3[Fe(CN)6]2•xH2O micro-/nanocrystals and their excellent adsorption performance toward methylene blue
被引:33
作者:
Wu, Shikui
[1
,2
]
Shen, Xiaoping
[1
]
Zhou, Hu
[3
]
Zhu, Guoxing
[1
]
Wang, Rongyan
[2
]
Ji, Zhenyuan
[1
]
Chen, Kangmin
[1
]
Chen, Chaojun
[2
]
机构:
[1] Jiangsu Univ, Sch Mat Sci & Engn, Sch Chem & Chem Engn, Zhenjiang 212013, Peoples R China
[2] Inner Mongolia Med Univ, Coll Pharm, Hohhot 010059, Peoples R China
[3] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Prussian blue analogue;
Micro-/nanocrystals;
Synthesis;
Organic dye;
Adsorption;
METAL-ORGANIC FRAMEWORKS;
MOFS;
CRYSTALLIZATION;
REMOVAL;
HEXACYANOFERRATE;
NANOPARTICLES;
NANOCRYSTALS;
MIL-100(FE);
COMPLEXES;
ADSORBENT;
D O I:
10.1016/j.jcis.2015.11.036
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Prussian blue analogue Zn-3[Fe(CN)(6)](2)center dot xH(2)O (Zn-PBA) micro-/nanocrystals with well-defined spherical, cubic and polyhedral morphologies have been successfully synthesized by a simple room-temperature solution method. The morphologies and sizes of the micro-/nanocrystals can be easily tuned by HCl dosage and polymer additive. The as-prepared products are characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis and Brunauer Emmet Teller adsorption-desorption analysis. The possible formation mechanism for these Zn-PBA micro-/nanocrystals is then proposed. In addtion, adsorption performances of these micro-/ nanocrystals toward organic dyes are systematically investigated. It is demonstrated that they exhibit strong adsorption selectivity to methylene blue (MB) with an extraordinary adsorption capacity as high as 1.016 g g(-1) due to the proper pore size and large specific surface area (643.2 m(2) g(-1)) of the product as well as the strong electrostatic interaction between MB molecules and Zn-PBA particles. It is found that the morphology and size of the micro-/nanocrystals have an important effect on their adsorption performance. Moreover, the adsorbed MB dye can be well released in some organic solvents such as ethanol and trichloromethane. The facile morphology-controlled synthesis and excellent adsorption property afford the materials promising application in adsorption related fields. (C) 2015 Elsevier Inc. All rights reserved.
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页码:191 / 197
页数:7
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