• Global access to safe and clean drinking water is still a distant goal, with water sources contaminated by a variety of emerging contaminants (ECs).
• Conventional water treatment methods are ineffective against the low concentrations of these contaminants, leaving many water sources unfit for consumption.
• Utilizing solar-driven photocatalysts to remove contaminants in real-time conditions is a significant challenge, particularly in regions with abundant sunlight like India.
• Developing effective and practical solutions for solar-driven water purification is essential.

The present invention relates to a liquid purification floating device comprising a photocatalyst comprising a nanocomposite of oxides of tantalum and niobium or non-metaldoped oxides of tantalum and niobium nanocomposites or both. (Fig. 1&2)

Components:

• The device consists of a float and a photocatalyst nanocomposite sheet or thin film.

Float Function:

• The float is designed to remain afloat on a fluid surface.

Photocatalyst Nanocomposite:

• The device incorporates a photocatalyst nanocomposite sheet or thin film, which contains a photocatalyst.

Pollution Decomposition:

• The photocatalyst nanocomposite sheet or thin film is engineered to decompose pollutants present in the liquid, contributing to liquid purification.

Functions:

• The photocatalyst efficiently degrades pollutants or contaminants present in liquid under visible, UV or solar radiation.