Synthesis of hierarchical m-BiVO 4 particles via hydro-solvothermal method and their photocatalytic properties
Source abstract
Abstract
Abstract A facile hydro-solvothermal method based on hydrothermal technique has been developed for the synthesis of monoclinic BiVO 4 powders with hierarchical structures, using Bi(NO 3 ) 3 ·5H 2 O and NaVO 3 as raw materials, and oleylamine as surfactant. The phase structure and morphology of as-prepared BiVO 4 particles are characterized by X-ray diffraction, field scanning electron microscope and transmission electron microscopy, respectively. The UV–vis absorption spectra and BET special surface areas are also measured. The influences of volume ratio of water/toluene and the pH value of aqueous phase on the morphology of BiVO 4 particles have been investigated to obtain the different shapes. The possible mechanisms for the synthesis technology and shape self-assembly of BiVO 4 are discussed. The results of the photocatalytic activity of as-prepared BiVO 4 show that sphere-like and needle-like BiVO 4 polycrystalline particles exhibit more excellent visible-light photocatalytic and satisfied recycling properties.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Gas Sensing Nanomaterials and Sensors · Catalytic Processes in Materials Science
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