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分别采用水热法、溶胶-凝胶法,以NH4VO3和InCl3·4H2O为原料制备InVO4纳米颗粒,利用XRD(X-射线衍射)分析表征手段重点考察了物料配比、工艺条件对产物相结构的影响,将优化获得的InVO4纳米颗粒与TiO2复合,制备出TiO2-InVO4复合纳米颗粒,并初步将其应用于光催化功能涂层的制备。结果表明:水热条件下有利于制备正交相InVO4纳米颗粒,V/In的物质的量之比及pH是影响InVO4纳米颗粒制备的关键因素。通过TiO2与InVO4的复合可进一步提高InVO4的可见光催化活性,展现出该复合纳米颗粒在光催化功能涂层方面的应用潜力。
InVO4nanoparticles were prepared by hydrothermal method and sol-gel method with NH4VO3 and InCl3 · 4H2O as raw materials. The XRD (X-ray diffraction) characterization method was used to investigate the effect of material ratio and process conditions on the phase structure of products Effect, the optimized InVO4 nano-particles and TiO2 composite, prepared TiO2-InVO4 composite nanoparticles, and initially applied to the photocatalytic functional coating preparation. The results show that the ratio of the amount of V / In and the pH, which are conducive to the preparation of orthogonal InVO4 nanoparticles under hydrothermal conditions, are the key factors affecting the preparation of InVO4 nanoparticles. The visible light photocatalytic activity of InVO4 can be further enhanced by compounding TiO2 with InVO4, showing the potential of the composite nanoparticle for the photocatalytic functional coating.