合成和表征Ti 1−2 & lt; / sub> & lt; i> & lt; sub> x & lt; / i> (FeNb) & lt; i> & lt; sub> x & lt; / i> O 2 & lt; / sub>可见光活性光催化剂的固溶体

IF 1.3 4区材料科学 Q3 MATERIALS SCIENCE, CERAMICS

Journal of the Ceramic Society of Japan Pub Date : 2023-10-01 DOI:10.2109/jcersj2.23013

Takuya Nishio, Hidenobu Murata, Yasuaki Tokudome, Atsushi Nakahira

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引用次数: 0

摘要

采用常规固相反应法制备了Ti1−2x(FeNb)xO2固溶体作为可见光活性光催化剂。在x = 0.25以下得到Ti1−2x(FeNb)xO2固溶体，无二次相。它们在可见光区表现出光吸收。随着x的增加，带隙对应的强吸收向低能方向移动。由于样品的价带最大值保持不变，导带最小值向低能方向移动。通过紫外-可见光照射对亚甲基蓝的光催化活性进行评价。Ti1−2x(FeNb)xO2固溶体的光催化活性随x的增加而提高，并观察到与带隙对应的清晰可见光光催化活性。因此，这些材料是环境应用的有希望的候选者。

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Synthesis and characterization of Ti1−2x(FeNb)xO2 solid solutions for visible-light-active photocatalyst

Ti1−2x(FeNb)xO2 solid solutions were prepared as visible-light-active photocatalysts using a conventional solid-state reaction method. Ti1−2x(FeNb)xO2 solid solutions were obtained below x = 0.25 without any secondary phase. They exhibited light absorption in the visible region. The strong absorption corresponding to the bandgap shifted to the lower energies with increasing x. Because the valence band maxima of the samples remained unchanged, the conduction band minima shifted to lower energies. The photocatalytic activity was evaluated based on the degradation of methylene blue under UV–visible light irradiation. The photocatalytic activity of Ti1−2x(FeNb)xO2 solid solutions tends to improve with increasing x. Clear visible light photocatalytic activity corresponding to the band gap was also observed. Thus, these materials are promising candidates for environmental applications.

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来源期刊

Journal of the Ceramic Society of Japan 工程技术-材料科学：硅酸盐

CiteScore

2.10

自引率

18.20%

发文量

170

审稿时长

2 months

期刊介绍： The Journal of the Ceramic Society of Japan (JCS-Japan) publishes original experimental and theoretical researches and reviews on ceramic science, ceramic materials, and related fields, including composites and hybrids. JCS-Japan welcomes manuscripts on both fundamental and applied researches.

合成和表征Ti< sub> 1−2 & lt; / sub> & lt; i> & lt; sub> x< / sub> & lt; / i> (FeNb) & lt; i> & lt; sub> x< / sub> & lt; / i> O< sub> 2 & lt; / sub>可见光活性光催化剂的固溶体

摘要