Hi Roshan,

The structural changes that occur in the formation of nanocomposites can significantly influence the photocatalytic application process. Here are some ways in which structural changes in nanocomposites can impact their photocatalytic properties and provide advantages:

• Increased surface area: Nanocomposites typically have a higher surface area compared to conventional fillers or base polymers. This increased surface area allows for more active sites available for photocatalytic reactions, enhancing the overall photocatalytic activity of the material. The larger surface area also facilitates better interaction with photons, leading to more efficient utilization of light energy.
• Enhanced interfacial interactions: Nanocomposites often exhibit improved interfacial interactions between the filler and the base polymer. This strong interface promotes efficient charge transfer and reduces charge recombination, which are crucial for effective photocatalysis. Enhanced interfacial interactions enable better utilization of photo-generated charges, leading to increased photocatalytic efficiency.
• Tunable composition and morphology: The formation of nanocomposites allows for the precise control of the composition and morphology of the materials. By varying the type, concentration, and distribution of fillers within the polymer matrix, the photocatalytic properties of the composite can be tailored to specific applications. This tunability enables optimization of parameters such as bandgap, light absorption, and charge separation, resulting in enhanced photocatalytic performance.
• Synergistic effects: Nanocomposites can exhibit synergistic effects between the filler and the polymer matrix. The combination of different materials at the nanoscale can result in unique properties not found in either component alone. For example, the addition of specific nanoparticles as fillers can enhance light absorption, extend the spectral response range, or promote specific photocatalytic reactions. Synergistic effects can significantly improve the overall photocatalytic efficiency and broaden the range of photocatalytic applications.
• Stability and durability: The incorporation of nanofillers into polymers can improve the stability and durability of the composite material. The fillers can act as reinforcement, enhancing the mechanical strength and resistance to degradation, such as photocorrosion or chemical attack. This increased stability ensures the longevity and reliability of the photocatalytic material, making it suitable for practical applications.

Overall, the structural changes in nanocomposites, including increased surface area, enhanced interfacial interactions, tunable composition and morphology, synergistic effects, and improved stability, contribute to improved photocatalytic performance. These advantages make nanocomposites promising materials for various photocatalytic applications, such as environmental remediation, water purification, air purification, and solar energy conversion.

Nanocomposites have several advantages over conventional filler counterparts and base polymers. I highly recommend you Pedro Camargo's aricle available at the link: https://www.scielo.br/j/mr/a/53qXWM7k3BwVR74PZ8YGS9t

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