二氧化钛光催化剂的改性及其对亚甲基蓝的降解性能研究-化学与化工研究-CSCIED科技核心评价数据库-手机版

二氧化钛光催化剂的改性及其对亚甲基蓝的降解性能研究

Synthesis experiment design and practice of modified silica/pp composites and their effects on properties

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DOI	10.12208/j.jccr.20250078
刊名	化学与化工研究 Journal of Chemistry and Chemical Research
年，卷(期)	2025, 5(3)
作者	郭浩然¹, 李振亮^1,2, 明小平¹, 徐强¹, 赵调彬^1,2,
作者单位	宁夏回族自治区绿色催化材料与技术重点实验室宁夏固原; 宁夏师范大学化学化工学院宁夏固原; 宁夏师范大学化学化工学院宁夏固原;
摘要	随着环境污染的问题越来越来严重，光催化技术利用其绿色高效无污染的特点，成为了环境治理方面的研究热点。本研究通过铁掺杂以及聚乙二醇（PEG）表面修饰的方法对二氧化钛（TiO₂）进行改性，采用溶胶-凝胶法成功制备了光催化剂。随后，利用傅里叶变换红外光谱（FTIR）和紫外-可见漫反射光谱（UV-Vis DRS）等技术对其结构与光学性能进行了表征分析，并以亚甲基蓝作为目标污染物，在常温常压条件下对其降解性能进行了检验。结果表明，铁掺杂有效减小TiO2禁带宽度，PEG表面修饰增强了光催化剂的分散性，二者共同作用使光生载流子复合率显著降低。改性后的TiO2光催化剂在常温常压下对亚甲基蓝展现出优异的降解性能，为高效光催化材料的开发提供了新思路。
Abstract	With the increasingly severe environmental pollution, photocatalysis technology has become a research hotspot in environmental governance due to its green, efficient, and pollution-free characteristics. In this study, TiO₂ was modified through iron doping and polyethylene glycol (PEG) surface modification. We successfully prepared the photocatalyst via the sol-gel method. Subsequently, Fourier transform infrared spectroscopy (FTIR) and ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS) were used to characterize their structural and optical properties. The degradation performance was evaluated using methylene blue as the target pollutant under normal temperature and pressure conditions. The results show that iron doping effectively reduces the bandgap of TiO₂, while PEG modification enhances the dispersibility of the photocatalyst. The combined effect significantly reduces the recombination rate of photogenerated carriers. The modified TiO₂ photocatalyst demonstrates excellent degradation performance toward methylene blue under normal temperature and pressure, providing new insights for the development of high-efficiency photocatalytic materials.
关键词	二氧化钛；铁掺杂；PEG表面修饰；亚甲基蓝
KeyWord	Titanium Dioxide; Iron doping; PEG surface modification; Methylene blue
基金项目
页码	6-9

参考文献
相关文献

[1] MARĺA V, MIGUEL A. “Effect of calcination temperature of a copper ferrite synthesized by a sol-gel method on its structural characteristics and performance as Fenton catalyst to remove gallic acid from water”. Journal of Colloid and Interface Science, 511, 2018.

[2] SHIVA T, FATEMEH D. “Preparation of γ-Al2O3 nanoparticles using modified sol-gel method and its use for the adsorption of lead and cadmium ions”. Journal of Alloys and Compounds, 730, 2018.

[3] 黎成.沸石固定的环境友好型二氧化钛光催化剂的制备及其光催化性能研究
[D]. 青岛大学, 2023

[4] 刘晓东. C3N5基S型异质结光催化剂的制备及性能研究
[D]. 理工大学, 2024.

[5] 彭家瑀. 球形介孔二氧化硅催化剂载体的制备及光催化应用研究
[D]. 河南大学, 2024.

[6] 梁轻. Nb掺杂二氧化钛纳米管的电子结构及电催化性能的理论计算研究
[D]. 杭州电子科技大学, 2024.

[7] 李雪连. 负载型TiO2基光催化剂的制备及其对有机染料的光降解性能研究
[D]. 深圳大学, 2022.

[8] Aoyagi S , Iwama E , Matsumura K ,et al.Ultra‐Densified TiO(B) Anode With Fluid‐Like Compressibility: Enhancing Volumetric Capacity for High‐Performance Supercapacitors
[J].Small, 2025, 21(19).

[9] Shinde V B , Sature K R , Indurkar S J ,et al.Optimizing the Structural and Photocatalytic Properties of TiO Composites Synthesized via Sol-Gel Method
[J].METALLURGICAL & MATERIALS ENGINEERING, 2025, 31(3):11.

[10] Kiguchi M , Hanada N .Suspension Type TiO2 Photocatalysts for Water Treatment: Magnetic TiO2/SiO2/Fe3O4 Nanoparticles and Submillimeter TiO2-Polystyrene Beads
[J]. 2026.

[11] Guijuan L I , Haiyang K , Lina M A ,et al.PEG/ TiO2 phase change materials
[C].International Conference on Advanced Fibers and Polymer Materials.2011.

引用本文

郭浩然, 李振亮^,, 明小平, 徐强, 赵调彬^,. 二氧化钛光催化剂的改性及其对亚甲基蓝的降解性能研究 [J]. 化学与化工研究. 2025; 5; (3). 6 - 9.

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