Highly transparent TiO2/cellulose hybrid film with enhanced UV shielding, dye absorption, photocatalytic, and antibacterial properties

IF 4.9 2区工程技术 Q1 MATERIALS SCIENCE, PAPER & WOOD

Cellulose Pub Date : 2025-04-16 DOI:10.1007/s10570-025-06472-4

Yujie Zhang, Liangsheng Li, Jianxi Huang, Xinru He, Xuan Xuan, Wenming Shi, Yongsheng Yu, Heng Chen

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引用次数: 0

Abstract

Transparency is an important characteristic for film products, yet it remains a formidable challenge in the realm of organic-inorganic hybrid and composite materials. Herein, we report the development of transparent TiO₂/cellulose hybrid films through an innovative in situ synthesis method, integrating TiO₂ formation during the regeneration process of cellulose. These hybrid films exhibit exceptional transparency, rivaling that of pure regenerated cellulose films, while simultaneously boasting a robust UV-shielding capacity. The successful integration of TiO₂ into the hybrid films was validated through XPS and Raman analysis, while XRD patterns revealed a decrease in the crystallinity of regenerated cellulose due to the introduction of TiO₂. To investigate the dye removal capabilities of these films, methylene blue was chosen as a model dye. Our experiments indicate that the incorporation of TiO₂ significantly enhances the dye absorption capacity and catalytic photodegradation activity of the regenerated cellulose film. Furthermore, antibacterial tests targeting Escherichia coli and Staphylococcus aureus revealed that these hybrid films exhibit remarkable antibacterial properties, effectively inhibiting bacterial growth in both dark and UVC irradiation conditions. Collectively, these results underscore the promising applications of TiO₂/cellulose hybrid films in diverse fields, including dye wastewater treatment and active food packaging.

Graphical abstract

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高透明TiO2/纤维素杂化膜，具有增强的紫外线屏蔽、染料吸收、光催化和抗菌性能

透明是薄膜产品的重要特性，但在有机-无机杂化和复合材料领域仍然是一个巨大的挑战。在此，我们报道了通过一种创新的原位合成方法开发透明TiO2/纤维素杂化膜，整合了纤维素再生过程中TiO2的形成。这些混合膜表现出非凡的透明度，与纯再生纤维素膜相媲美，同时具有强大的紫外线屏蔽能力。通过XPS和拉曼分析验证了TiO2成功整合到杂化膜中，而XRD图显示TiO2的引入降低了再生纤维素的结晶度。为了研究这些膜的染料去除能力，我们选择亚甲基蓝作为模型染料。我们的实验表明，TiO2的掺入显著提高了再生纤维素膜的染料吸收能力和催化光降解活性。此外，针对大肠杆菌和金黄色葡萄球菌的抗菌试验表明，这些杂交膜具有显著的抗菌性能，在黑暗和UVC照射条件下都能有效抑制细菌的生长。总的来说，这些结果强调了TiO2/纤维素杂化膜在染料废水处理和活性食品包装等各个领域的应用前景。图形抽象

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来源期刊

Cellulose 工程技术-材料科学：纺织

CiteScore

10.10

自引率

10.50%

发文量

580

审稿时长

3-8 weeks

期刊介绍： Cellulose is an international journal devoted to the dissemination of research and scientific and technological progress in the field of cellulose and related naturally occurring polymers. The journal is concerned with the pure and applied science of cellulose and related materials, and also with the development of relevant new technologies. This includes the chemistry, biochemistry, physics and materials science of cellulose and its sources, including wood and other biomass resources, and their derivatives. Coverage extends to the conversion of these polymers and resources into manufactured goods, such as pulp, paper, textiles, and manufactured as well natural fibers, and to the chemistry of materials used in their processing. Cellulose publishes review articles, research papers, and technical notes.