增强 K2Ti6O13/g-C3N4 异质结的模拟太阳光光催化性能

IF 1.8 4区物理与天体物理 Q3 PHYSICS, APPLIED

Modern Physics Letters B Pub Date : 2024-06-12 DOI:10.1142/s0217984924504104

Zhi Li, Yuhan Jing, Qianxu Ye, Jie Wang, Nan Sun, Liexing Zhou, Jinming Cai

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引用次数: 0

摘要

在这项研究中，首次使用乙醇、KF 和 TiO2 在 800∘C 温度下通过新型固相方法在 K2Ti6O [式：见正文] （KTO）纳米线中掺杂了碳（CKTO）。与传统的固相方法相比，该方法不仅烧结温度更低，而且绝缘时间更短。此外，通过将 CKTO 和 g-C3N4 结合并煅烧，制备出了 CKTO/g-C3N4 异质结复合材料。与纯 CKTO 和 g-C3N4 相比，CKTO/g-C3N4 光催化降解亚甲基蓝的速率更高。我们的研究表明，添加 g-C3N4 可降低光生电子-空穴对的重组率，缩小 CKTO/g-C3N4 异质结构的带隙，从而提高光催化性能。本文提出了一种新型方法，以环保和高效的方式制造 KTO 复合材料，用于有机色素的光催化降解。

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Enhanced simulated sunlight photocatalytic performance in K2Ti6O13/g-C3N4 heterojunction

In this study, K2Ti6O[Formula: see text] (KTO) nanowires were doped with carbon (CKTO) via a novel solid-phase approach at 800∘C for the first time using ethanol, KF, and TiO2. In addition to the lower sintering temperature, a shorter insulation period was achieved compared to the conventional solid-phase method. Furthermore, by combining and calcining CKTO and g-C3N4, a CKTO/g-C3N4 heterojunction composite was produced. The rate at which CKTO/g-C3N4 photocatalytically degraded methylene blue was higher than those of pure CKTO and g-C3N4. Our study indicates that adding g-C3N4 enhances photocatalytic performance by reducing the recombination rate of photogenerated electron–hole pairs and narrowing the bandgap of the CKTO/g-C3N4 heterostructure. This paper presents a novel method for creating KTO composites in an eco-friendly and productive manner for the photocatalytic degradation of organic colors.

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来源期刊

Modern Physics Letters B 物理-物理：凝聚态物理

CiteScore

3.70

自引率

10.50%

发文量

235

审稿时长

5.9 months

期刊介绍： MPLB opens a channel for the fast circulation of important and useful research findings in Condensed Matter Physics, Statistical Physics, as well as Atomic, Molecular and Optical Physics. A strong emphasis is placed on topics of current interest, such as cold atoms and molecules, new topological materials and phases, and novel low-dimensional materials. The journal also contains a Brief Reviews section with the purpose of publishing short reports on the latest experimental findings and urgent new theoretical developments.