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Luminescence, electrochemical and photocatalytic properties of sub-micron nickel(II) and cobalt(II) coordination polymers synthesized by sonochemical process
被引:47
作者:
Li, Jun Xuan
[1
]
Li, Yu Feng
[1
]
Liu, Li Wei
[1
]
Cui, Guang Hua
[1
]
机构:
[1] North China Univ Sci & Technol, Hebei Key Lab Environm Photocatalyt & Electrocata, Coll Chem Engn, Tangshan 063210, Hebei, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Coordination polymer;
Crystal structure;
2D sub-micron sized nickel(II) and cobalt(II);
Sonochemical method;
Photocatalytic activity;
5-Methylisophthalic acid;
METAL-ORGANIC FRAMEWORKS;
SUPRAMOLECULAR POLYMER;
MECHANOCHEMICAL CONVERSION;
ULTRASONIC IRRADIATION;
TOPOLOGICAL STRUCTURES;
DIFFERENT MORPHOLOGIES;
STRUCTURAL DIVERSITY;
CRYSTAL-STRUCTURES;
LIGANDS;
FLUORESCENCE;
D O I:
10.1016/j.ultsonch.2017.09.039
中图分类号:
O42 [声学];
学科分类号:
070206 ;
082403 ;
摘要:
Submicron structures of N-II/Co-II-based coordination polymers (CPs) [Ni(L1)(mip)center dot H2O] (1) and {[Co(L2) (mip)]center dot 0.5H(2)O}(n) (2) (L1 = 1,6-bis(5,6-dimethylbenzimidazole)hexane, L2 = 1,6-bis(benzimidazole)hexane, H(2)mip = 5-methylisophthalic acid) were obtained by ultrasonic irradiation and structurally characterized by elemental analysis, powder X-ray diffraction and scanning electron microscopy. Structural analysis show that two CPs feature uninodal 3-connected 2D hcb layer, whilst CP 2 is further extended into a 3D complicated supramolecular network by C14-H14 center dot center dot center dot O-2 hydrogen bonds. Ultrasonic time and power influencing morphology of sub-micron sized CPs, were also discussed. Besides that, thermal stability, luminescence, electrochemical properties and photocatalytic activity of sub-micron sized 1 and 2 were presented in detail. Moreover, sub micron sized 1 manifests the higher photocatalytic activity than sub-micron sized 2 for decomposition of methylene blue (MB) under UV irradiation.
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页码:196 / 205
页数:10
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