Article Title

Versatile inorganic-organic hybrid WO _x -ethylenediamine nanowires: Synthesis, mechanism and application in heavy metal ion adsorption and catalysis

Authors

Wei Li, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China CSIRO Materials Science and Engineering, Private Bag 33, Clayton South, Victoria, 3169, Australia
Fang Xia, CSIRO Materials Science and Engineering, Private Bag 33, Clayton South, Victoria, 3169, Australia
Jin Qu, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
Ping Li, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
Dehong Chen, PFPC, School of Chemistry, The University of Melbourne, Melbourne, Victoria, 3010, Australia
Zhe Chen, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
Yu Yu, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
Yu Lu, CSIRO Materials Science and Engineering, Private Bag 33, Clayton South, Victoria, 3169, Australia
Rachel A. Caruso, CSIRO Materials Science and Engineering, Private Bag 33, Clayton South, Victoria, 3169, Australia PFPC, School of Chemistry, The University of Melbourne, Melbourne, Victoria, 3010, Australia
Weiguo Song, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China

Keywords

WOx–ethylenediamine, nanowires, synchrotron-radiation, X-ray diffraction, heavy metal, water treatment, catalysis

Abstract

Inorganic–organic hybrid WOx-ethylenediamine (WOx–EDA) nanowires have been produced by a simple, low-cost and high-yield solvothermal method. These WOx–EDA hybrid nanowires have unique lamellar mesostructures with an alternate stacking of an interconnected [WO6] octahedral layer and a monolayer of ethylenediamine molecules. This hybrid structure integrated the functionality of ethylenediamine with the stability of the WOx frameworks. In situ synchrotronradiation X-ray diffraction is used to elucidate a possible formation mechanism of the hybrid WOx–EDA. The nanowire morphology, lamellar structure and abundant functional amino groups endow them with versatile abilities. For example, in heavy metal ion adsorption the WOx–EDA nanowires display exceptional adsorption capabilities of 925 mg·g–1 for Pb2+ and 610 mg·g–1 for UO2 2+. The nanowires also show outstanding stability and activity as a heterogeneous base catalyst in the Knoevenagel condensation reaction at room temperature. The catalyst can be recycled and reused for 20 cycles with nearly 100% yields. This study provides a new strategy to design inorganic–organic hybrid materials, and offers a multifunctional material that is a highly efficient adsorbent and sustainable catalyst.

Graphical Abstract

DOI

https://doi.org/10.1007/s12274-014-0452-9

Publisher

Tsinghua University Press

Recommended Citation

Wei Li,Fang Xia,Jin Qu,Ping Li,Dehong Chen,Zhe Chen,Yu Yu,Yu Lu,Rachel A. Caruso,Weiguo Song, Versatile inorganic-organic hybrid WO x -ethylenediamine nanowires: Synthesis, mechanism and application in heavy metal ion adsorption and catalysis. NanoRes.2014, 7(6): 903–916