PVC-Based Ultraviolet Screening Films Modified by Chitosan Capped ZnO–Hydroxyapatite

IF 0.8 4区 化学 Q4 SPECTROSCOPY Journal of Applied Spectroscopy Pub Date : 2024-09-14 DOI:10.1007/s10812-024-01802-z
Bin Wang, Xiao Zhang, Xiangmei Ma
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Abstract

Exploring new material structures of low photocatalytic degradation activity for ultraviolet screening is one of the important methods for improving polyvinylchloride (PVC) performance. As an important kind of ultraviolet (UV) shielding agent material, nano zinc oxide (ZnO) has been applied extensively in many fields due to its outstanding properties. However, the severe aggregation behavior between nanoparticles (NPs) and photocatalytic activity greatly limits the application. In this work, surface modification of ZnO with hydroxyapatite and chitosan (ZnO–Hap/CS) was fabricated. Then via a solution casting technique dispersed within the PVC matrix. The results demonstrated that the obtained composite exhibited the best ultraviolet screening performance greatly decreasing the photocatalytic degradation activity of ZnO. It is expected that this approach is prospective for the large-scale preparation of nano ZnO with excellent UV-blocking performance and low photocatalytic degradation activity.

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壳聚糖封端氧化锌-羟基磷灰石改性的聚氯乙烯基紫外线屏蔽膜
探索具有低光催化降解活性的新型紫外线屏蔽材料结构是提高聚氯乙烯(PVC)性能的重要方法之一。作为一种重要的紫外线(UV)屏蔽剂材料,纳米氧化锌(ZnO)因其优异的性能已被广泛应用于多个领域。然而,纳米颗粒(NPs)之间严重的聚集行为和光催化活性极大地限制了其应用。在这项工作中,制备了羟基磷灰石和壳聚糖(ZnO-Hap/CS)对 ZnO 进行表面修饰。然后通过溶液浇铸技术将其分散在聚氯乙烯基体中。结果表明,所获得的复合材料具有最佳的紫外线屏蔽性能,大大降低了 ZnO 的光催化降解活性。该方法有望大规模制备具有优异紫外线屏蔽性能和较低光催化降解活性的纳米氧化锌。
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来源期刊
CiteScore
1.30
自引率
14.30%
发文量
145
审稿时长
2.5 months
期刊介绍: Journal of Applied Spectroscopy reports on many key applications of spectroscopy in chemistry, physics, metallurgy, and biology. An increasing number of papers focus on the theory of lasers, as well as the tremendous potential for the practical applications of lasers in numerous fields and industries.
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