Removal of Organic Dye by Ti-Doped Bi2O3/MMT with Enhanced Visible-Light Photocatalytic Activity

IF 2.2 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Electronic Materials Pub Date : 2024-07-30 DOI:10.1007/s11664-024-11340-1

Xiulong Shi, Biyang Tuo, Cheng Gan, Yaxin Deng, Xvjun Zhang

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Abstract

Ti-doped Bi₂O₃/montmorillonite (TBM) was prepared by chemical solution decomposition and used to conduct adsorption and degradation experiments. The materials were characterized by detection methods such as XRD, SEM, BET, XPS, UV-Vis DRS, etc. The results showed that doping Ti can inhibit the growth of Bi₂O₃ grains and destroy the layered structure of montmorillonite. Furthermore, doping Ti can improve the adsorption ability and reduce the band gap of the photocatalyst, thus enhancing the photocatalytic degradation performance. When the Ti doping ratio was 4% (4TBM), the material dosage was 1.0 g/L, and the initial concentration was 20 mg/L, 4TBM has the best photocatalytic degradation effect on reactive brilliant blue KN-R, with a removal rate of 98.17%. The photocatalytic degradation process of reactive brilliant blue KN-R follows the first-order kinetic model. This study not only has great significance for environmental remediation but also provides an optical material with excellent performance for the optical field.

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用掺钛 Bi2O3/MMT 去除有机染料，增强可见光光催化活性

通过化学溶液分解法制备了掺钛 Bi2O3/蒙脱石（TBM），并将其用于吸附和降解实验。通过 XRD、SEM、BET、XPS、UV-Vis DRS 等检测方法对材料进行了表征。结果表明，掺杂 Ti 可以抑制 Bi2O3 晶粒的生长，破坏蒙脱石的层状结构。此外，掺杂 Ti 还能提高光催化剂的吸附能力并降低其带隙，从而提高光催化降解性能。当 Ti 掺杂比例为 4%（4TBM）、材料用量为 1.0 g/L、初始浓度为 20 mg/L 时，4TBM 对活性艳蓝 KN-R 的光催化降解效果最好，去除率达 98.17%。活性艳蓝 KN-R 的光催化降解过程遵循一阶动力学模型。这项研究不仅对环境修复具有重要意义，而且为光学领域提供了一种性能优异的光学材料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Electronic Materials 工程技术-材料科学：综合

CiteScore

4.10

自引率

4.80%

发文量

693

审稿时长

3.8 months

期刊介绍： The Journal of Electronic Materials (JEM) reports monthly on the science and technology of electronic materials, while examining new applications for semiconductors, magnetic alloys, dielectrics, nanoscale materials, and photonic materials. The journal welcomes articles on methods for preparing and evaluating the chemical, physical, electronic, and optical properties of these materials. Specific areas of interest are materials for state-of-the-art transistors, nanotechnology, electronic packaging, detectors, emitters, metallization, superconductivity, and energy applications. Review papers on current topics enable individuals in the field of electronics to keep abreast of activities in areas peripheral to their own. JEM also selects papers from conferences such as the Electronic Materials Conference, the U.S. Workshop on the Physics and Chemistry of II-VI Materials, and the International Conference on Thermoelectrics. It benefits both specialists and non-specialists in the electronic materials field. A journal of The Minerals, Metals & Materials Society.