Fabrication and characterization of functional chitosan/MXene composite films decorated with lead zirconate titanate nanoparticles

IF 4.3 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Chemistry and Physics Pub Date : 2025-05-12 DOI:10.1016/j.matchemphys.2025.131022

Öznur Doğan Ulu , Ahmet Ulu , Emre Birhanlı , Mustafa Ersin Pekdemir , Selçuk Atalay , Ali Gelir , Burhan Ateş

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引用次数: 0

Abstract

The current study is intended to enhance unique bioactive and eco-friendly composite films following a simple solvent-casting method by incorporating lead zirconate titanate nanoparticles (PZT NPs) with chitosan (CHS)/MXene matrix. Different characterization techniques were used in the examination of the obtained composite films and the basic physicochemical properties, electrical properties, antioxidant and antibacterial activities of the composite films were determined. The swelling degree, water uptake, and water solubility of the CHS/MXene/PZT composite films decreased with the incorporation of PZT NPs, whereas the thermal stability increased. When PZT NPs were added, the tensile strength and elongation at break of composite films reached 1.32 MPa and 29.32 %, respectively, which were obviously higher than that of CHS/MXene film. Meanwhile, composite film had moderate antioxidant properties, which, interestingly, decreased with increasing PZT NPs content. In contrast, the obtained composite films showed good antibacterial activity against E. coli (11.00–16.80 mm) and S. aureus (12.20–18.60 mm), which gradually increased with the amount of PZT NPs. Meanwhile, the order of antibacterial activity was found to be S. aureus > E. coli, showing the selectivity of composite films. These results will shed light on additive selection for functional composite films of several applications.

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纳米锆钛酸铅修饰功能壳聚糖/MXene复合膜的制备与表征

本研究旨在通过简单的溶剂铸造方法，将锆钛酸铅纳米颗粒（PZT NPs）与壳聚糖(CHS)/MXene基质结合，增强独特的生物活性和环保复合膜。采用不同的表征技术对制备的复合膜进行了表征，测定了复合膜的基本理化性能、电学性能、抗氧化和抗菌性能。随着PZT NPs的掺入，CHS/MXene/PZT复合膜的溶胀度、吸水率和水溶性降低，热稳定性提高。添加PZT NPs后，复合膜的抗拉强度和断裂伸长率分别达到1.32 MPa和29.32%，明显高于CHS/MXene薄膜。同时，复合膜具有中等的抗氧化性能，随着PZT NPs含量的增加，复合膜的抗氧化性能降低。复合膜对大肠杆菌（11.00 ~ 16.80 mm）和金黄色葡萄球菌（12.20 ~ 18.60 mm）的抑菌活性随PZT NPs用量的增加而逐渐增强。同时，发现其抑菌活性顺序为金黄色葡萄球菌>；大肠杆菌，显示复合膜的选择性。这些结果将对几种应用的功能复合薄膜添加剂的选择提供启示。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Chemistry and Physics 工程技术-材料科学：综合

CiteScore

8.70

自引率

4.30%

发文量

1515

审稿时长

69 days

期刊介绍： Materials Chemistry and Physics is devoted to short communications, full-length research papers and feature articles on interrelationships among structure, properties, processing and performance of materials. The Editors welcome manuscripts on thin films, surface and interface science, materials degradation and reliability, metallurgy, semiconductors and optoelectronic materials, fine ceramics, magnetics, superconductors, specialty polymers, nano-materials and composite materials.