Abstract

Three-dimensional (3D) architectures assembling with Zn2SiO4 nanowires were synthesized by a novel molten-salt method using rice husk both as biomorphic template and SiO2 source. Also, ZnCl2 powder was chosen as reactant and molten-salt. X-ray diffraction, scanning electron microscope and transmission electron microscope were used to investigate the morphology and composition of this unique architecture. Nitrogen adsorption measurements verified the presence of mesoporous structure. The growth process of the synthesized Zn2SiO4 nanowires was proposed, including the introduction of ZnCl2 to rice husk, the formation of ZnOCl2·H2O nanostructures, and the growth of 3D Zn2SiO4 textured nanowires. Furthermore, the absorption capacity of 3D Zn2SiO4 architectures to remove Fe3+, Cr3+ and Mg2+ in water was performed.

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