压电效应辅助TiO2/BaTiO3双组分增强光催化降解黄药

IF 5.6 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2025-06-01 DOI:10.1016/j.ceramint.2025.02.213

Meng Li , Weiji Sun , Yiming Li , Lang Liu

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引用次数: 0

摘要

光催化降解有机污染具有绿色、环保、高效、经济等特点，被认为是目前最有发展前途的水处理技术。本文采用溶剂热法制备了压电型TiO2/BaTiO3双组分光催化剂。机械能的触发作为驱动力，诱导压电材料BaTiO3释放束缚电荷，促进光生电子与空穴的分离，从而加速光催化降解反应。此外，TiO2与BaTiO3之间构建的异质结促进了光诱导载流子分离，提高了黄原药降解活性物质的生成效率。光照50 min后，黄药的光催化降解效率达到98.3%，且TiO2/BaTiO3光催化剂具有可回收性和高可重复使用性。本研究为利用压电效应和光催化技术降解选矿废水开辟了一条新的途径。

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Piezoelectric effect-assisted TiO2/BaTiO3 bicomponent for enhanced photocatalytic degradation of xanthate

Photocatalytic degradation of organic pollution has the characteristics of green, environmental protection, high efficiency and economy, and is considered as the most promising water treatment technology at present. In this work, the piezoelectric TiO₂/BaTiO₃ bicomponent photocatalyst is constructed by solvothermal method. The trigger of mechanical energy as a driving force induces the piezoelectric material BaTiO₃ to release bound charges, which promotes the separation of photogenerated electrons and holes, thus accelerating the photocatalytic degradation reaction. Moreover, the heterojunction constructed between TiO₂ and BaTiO₃ promotes photo-induced carrier separation and improves the generation efficiency of xanthate degrading active substances. The photocatalytic degradation efficiency of xanthate reached 98.3 % after 50 min of illumination, and the TiO₂/BaTiO₃ photocatalyst is recoverable and highly reusable. This research opens up a new way for the degradation of mineral processing wastewater by piezoelectric effect and photocatalysis technology.

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.