Digital light processing of SiO2-TiO2 materials by combining ceramic slurries and metal precursors

IF 5.8 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of The European Ceramic Society Pub Date : 2025-06-14 DOI:10.1016/j.jeurceramsoc.2025.117628

Mario Borlaf , Víctor M. Candelario , Jesús López-Sánchez , Yiting Li , María Valero-Saiz , Víctor Cepa-López , Rubén Mas-Ballesté , Rodrigo Moreno

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引用次数: 0

Abstract

One-step additive manufacturing of functional ceramics via Digital Light Processing (DLP) is still under development. The increased demand of such kind of materials creates new opportunities to investigate alternatives and new methodologies. In this work, a combination of photocurable SiO₂ slurries with Ti metal precursor (titanium isopropoxide, TIPO) is used to fabricate SiO₂-TiO₂ materials by DLP. Slurries with different solids content and metal precursor concentration were prepared. The obtained materials were characterized and evaluated as photocatalysts. The anatase-TiO₂ phase was retained at temperatures as high as 1200 ºC in all cases, although for higher concentrations the rutile phase was also detected at such temperature. From the methylene blue degradation experiments it can be extracted that the SiO₂ surface was fully covered when a 10 wt% of metal precursor was added, and the highest photocatalytic activity was obtained for the samples with 10–20 wt% of TIPO sintered at 1000–1100 ºC/1 h.

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结合陶瓷浆料和金属前驱体的二氧化钛-二氧化钛材料的数字光处理

通过数字光处理（DLP）一步增材制造功能陶瓷仍处于开发阶段。对这类材料需求的增加为研究替代方案和新方法创造了新的机会。本研究将光固化SiO2浆料与Ti金属前驱体（异丙酸钛，TIPO）结合，采用DLP法制备SiO2- tio2材料。制备了不同固体含量和金属前驱体浓度的浆料。所得材料作为光催化剂进行了表征和评价。在所有情况下，锐钛矿- tio2相在高达1200℃的温度下都保持不变，尽管在较高浓度的温度下也检测到金红石相。从亚甲基蓝降解实验中可以看出，当添加10 wt%的金属前驱体时，SiO2表面被完全覆盖，10 - 20 wt%的TIPO在1000-1100℃/1 h烧结时，光催化活性最高。

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来源期刊

Journal of The European Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

10.70

自引率

12.30%

发文量

863

审稿时长

35 days

期刊介绍： The Journal of the European Ceramic Society publishes the results of original research and reviews relating to ceramic materials. Papers of either an experimental or theoretical character will be welcomed on a fully international basis. The emphasis is on novel generic science concerning the relationships between processing, microstructure and properties of polycrystalline ceramics consolidated at high temperature. Papers may relate to any of the conventional categories of ceramic: structural, functional, traditional or composite. The central objective is to sustain a high standard of research quality by means of appropriate reviewing procedures.