Novel synthesis of hybrid 0D/2D heterojunctions of synthesis hybrid Ti3C2 MXene/Carbon dots (CDs)/ZnO for enhanced activity of removal of pharmaceutical pollutants under visible-light

IF 4.3 3区材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Journal of Physics and Chemistry of Solids Pub Date : 2025-04-25 DOI:10.1016/j.jpcs.2025.112813

Phongsakorn Kantang , Aphinya Thinthasit , Indra Memdi Khoris , David Nugroho , Jaebeom Lee , Pathomthat Srisuk , Suwat Nanan , Rachadaporn Benchawattananon

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引用次数: 0

Abstract

This study investigates the production and photocatalytic efficacy of a Ti₃C₂ MXene/CDs/ZnO composite for the degradation of pharmaceutical contaminants, namely metronidazole and paracetamol, under visible light and sunlight. The catalyst was produced via a hydrothermal process and studied using XRD, SEM, TEM, FTIR, UV–Vis DRS, and EIS techniques. The findings demonstrate substantial photocatalytic efficacy, attaining 99 % degradation of metronidazole and paracetamol in 100 and 180 min, respectively, under visible light. Optimal photocatalytic conditions were determined, encompassing pollutant concentration, catalyst dosage, and pH. Mechanistic investigations reveal hydroxyl radicals as the principal active species, augmented by superoxide anions and holes. The catalyst exhibited strong reusability across five cycles with negligible efficiency decline. The application in actual water source demonstrated significant degradation efficiencies, highlighting its potential for environmental restoration.

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新型合成杂化Ti3C2 MXene/Carbon dots (CDs)/ZnO杂化0D/2D异质结以增强可见光下药物污染物的去除活性

本研究考察了Ti3C2 MXene/CDs/ZnO复合材料在可见光和日光下对药物污染物甲硝唑和对乙酰氨基酚的光催化降解效果。采用水热法制备催化剂，并采用XRD、SEM、TEM、FTIR、UV-Vis DRS和EIS等技术对催化剂进行了研究。研究结果表明，在可见光下，甲硝唑和扑热息痛的降解率分别在100分钟和180分钟内达到99%。确定了最佳光催化条件，包括污染物浓度、催化剂用量和ph。机理研究表明，羟基自由基是主要的活性物质，超氧阴离子和空穴增强了羟基自由基的活性。催化剂在5个循环中表现出很强的可重复使用性，效率下降可以忽略不计。在实际水源中的应用表明了显著的降解效率，突出了其在环境恢复中的潜力。

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来源期刊

Journal of Physics and Chemistry of Solids 工程技术-化学综合

CiteScore

7.80

自引率

2.50%

发文量

605

审稿时长

40 days

期刊介绍： The Journal of Physics and Chemistry of Solids is a well-established international medium for publication of archival research in condensed matter and materials sciences. Areas of interest broadly include experimental and theoretical research on electronic, magnetic, spectroscopic and structural properties as well as the statistical mechanics and thermodynamics of materials. The focus is on gaining physical and chemical insight into the properties and potential applications of condensed matter systems. Within the broad scope of the journal, beyond regular contributions, the editors have identified submissions in the following areas of physics and chemistry of solids to be of special current interest to the journal: Low-dimensional systems Exotic states of quantum electron matter including topological phases Energy conversion and storage Interfaces, nanoparticles and catalysts.