A hydrophobic flexible self-cleaning carbon based type II heterojunction photocatalyst:A smart apparel for multifunctional application

Hybrid Advances Pub Date : 2025-04-15 DOI:10.1016/j.hybadv.2025.100486

Srimathi Krishnaswamy , Puspamitra Panigrahi , Praseetha Prabhakaran Kala , Sharon Sofini , Ganapathi Subramaniam Nagarajan

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Abstract

Graphitic carbon nitride(GCN) and polypyrrole(PPy) based smart apparel were fabricated using polyvinyl alcohol as a binder on cotton cloth. Equal amount of GCN and PPy were mixed with different weight percentages to form composites and fabricated the thin film by casting method. A higher weight percentage of composite thin film revealed a low bandgap (3.555 eV) garnering 50 % of solar light. Higher optical(0.1735S) and electrical conductivity (1.4234X10⁻³ S/cm) was noticed for 5 GP. The nitrogen defect center of GCN was blocked by the –NH group of PPy and reduced the PL quenching of GCN. As 5 GP possesses, higher conductivity, it was chosen to fabricate smart attires. The smart fabric exhibited lower water solubility(10 %) and lower water absorption(30 %) and higher contact angle (110.8°) and revealed that the material is hydrophobic in nature. Owing to the hydrophobic nature and wide absorption, it can be a candidate for self-cleaning apparel.

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一种疏水柔性自清洁碳基II型异质结光催化剂：一种多功能智能服装

以聚乙烯醇为粘合剂，在棉布上制作了基于石墨氮化碳（GCN）和聚吡咯（PPy）的智能服装。将等量的 GCN 和 PPy 以不同的重量百分比混合形成复合材料，并通过浇铸法制成薄膜。重量百分比越高的复合薄膜带隙越低（3.555 eV），可获得 50% 的太阳光。在 5 GP 条件下，光导率（0.1735S）和电导率（1.4234X10-3 S/cm）更高。GCN 的氮缺陷中心被 PPy 的 -NH 基团阻挡，从而降低了 GCN 的聚光淬灭。由于 5 GP 具有更高的导电性，因此被选为制造智能服装的材料。智能织物的水溶性（10%）和吸水性（30%）较低，接触角（110.8°）较高，表明该材料具有疏水性。由于疏水性和广泛的吸水性，它可以成为自清洁服装的候选材料。

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Hybrid Advances

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