通过将锐钛矿二氧化钛配置成双连续介观结构实现电子结构调制

IF 5.5 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2024-11-28 DOI:10.1016/j.jtice.2024.105829

Ying-Hao Lu, Bor Kae Chang, Yi-Fan Chen

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引用次数: 0

摘要

背景将二氧化钛配置成双连续介观结构可大大提高其光催化效率。虽然这种提高通常归因于表面积的扩大，但显然仅凭表面积的扩大并不能完全解释效率的提高。方法研究其他因素已成为当务之急，这将有利于实现光催化剂效率的进一步提高。本文介绍了光谱学和密度泛函理论方法，以寻找光催化活性增强的其他原因。重要发现结果表明，介观结构导致的功效增强不仅是由于表面积的扩大，还源于 TiO2 电子结构的改变。这一发现不仅加深了人们对介观结构对金属氧化物半导体的影响的理解，还为微调材料的电子结构提供了另一种途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Electronic structure modulation from configuring anatase TiO2 into a bicontinuous mesostructure

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Electronic structure modulation from configuring anatase TiO2 into a bicontinuous mesostructure

Background

Configuring TiO₂ into bicontinuous mesostructures greatly enhances its photocatalytic efficiency. While this enhancement is commonly attributed to the expanded surface area, it has become apparent that the surface-area expansion alone cannot fully explain the efficiency enhancement.

Methods

Investigating additional factors becomes imperative and will be conducive to realizing further efficacy enhancement for photocatalysts. This paper presents spectroscopic and density functional theory approaches in finding additional reasons for the increased photocatalytic activity.

Significant Findings

Results show that the enhanced efficacy resulting from mesostructuring is not solely due to an expansion in surface area but also stems from modulations in the TiO₂ electronic structure. The finding not only advances current understanding of mesostructuring-induced effects on metal-oxide semiconductors but also introduces an alternative avenue for fine-tuning a material electronic structure.

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来源期刊

Journal of the Taiwan Institute of Chemical Engineers 工程技术-工程：化工

CiteScore

9.10

自引率

14.00%

发文量

362

审稿时长

35 days

期刊介绍： Journal of the Taiwan Institute of Chemical Engineers (formerly known as Journal of the Chinese Institute of Chemical Engineers) publishes original works, from fundamental principles to practical applications, in the broad field of chemical engineering with special focus on three aspects: Chemical and Biomolecular Science and Technology, Energy and Environmental Science and Technology, and Materials Science and Technology. Authors should choose for their manuscript an appropriate aspect section and a few related classifications when submitting to the journal online.