Abstract
ABSTRACT Semiconductor based heterogeneous photocatalysis is a cost-effective, ecologically acceptable approach for eradicating organic pollutants from the aquatic environment. Nowadays, clay minerals have become highly significant due to their inherent natural properties, extensive prevalence, high surface area and distinctive characteristics. Halloysite has garnered attention as a novel and effective surface material for the development of heterogeneous metal oxide-based photocatalysts. This paper presents a concise assessment of the latest advancements in the field of metal oxide integrated nano-tubular inorganic clay mineral photocatalysts, specifically focusing on their application in the degradation of organic pollutants. The primary aim of this review is to assess the photocatalytic characteristics of the composite material made up of halloysite and metal oxide, as documented in the reports from the past seven years. Furthermore, this analysis seeks to the effects of integrating halloysite based metal oxide composites on the photocatalytic process.
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