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Abstract

This study proposes a new method: the combined arc-submerged nanoparticle synthesis system (ASNSS) for preparing TiO₂ nanofluid. In addition to the influence of the various process variables such as breakdown voltage, peak current and dielectric liquid temperature on nanoparticles, this study will also discuss the photocatalytic activity of the prepared TiO₂ nanoparticle suspension. To examine the photocatalytic activity of the TiO₂, the photodecomposition of salicylic acid was carried out. Experimental results show that the proposed method can successfully prepare anatase TiO₂ and this nanofluid can be stabilised for longer than six months. The rate constant of photocatalytic reaction of TiO₂ nanoparticles for salicylic acid is 0·0035. Experimental results indicate that the TiO₂ nanoparticle fluid possesses excellent photocatalytic activity in photodegradation of salicylic acid.

Keywords

ARC-SUBMERGED NANOPARTICLE SYNTHESIS SYSTEM (ASNSS)NANOFLUID PHOTOCATALYSIS TIO2

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Process development and photocatalytic property of nanofluid prepared by combined ASNSS

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