Influence of oxygen vacancy in CaCu3Ti4O12 materials on photocatalytic degradation of methylene blue dye pollutants

Chemistry Letters 2026

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Authors: cuncun 中国 Kong, Pengfei Cheng, xueyan 中国 Su, Qin Xinrui, Xin Liu, Jiale Wang, Yue Wang
DOI: 10.1093/chemle/upag038
Cited by: 2
References: 23

Abstract

Abstract Oxygen vacancies were introduced into CaCu3Ti4O12 using bisphenol A to enhance its UV-driven photodegradation of methylene blue. Structural and spectroscopic analyses confirmed successful vacancy formation. Radical trapping identified ·OH as a key species. Optimized samples achieved 84.68% removal (0.0061 min−1), far exceeding pristine CaCu3Ti4O12 (32.78%), via oxygen vacancies. This work provides a new route to optimize photodegradation performance of CaCu3Ti4O12 by the modulation of intrinsic point defect structure.

Fields of Study & Subjects

Dielectric properties of ceramics Copper-based nanomaterials and applications Advanced Photocatalysis Techniques

Publication details

Journal / source
Chemistry Letters
Publisher
Oxford University Press (OUP)
Volume
55
Issue
3
Publication date
1 March 2026
Language
EN