Composite Materials Based on Biochar Obtained from Tomato Wastes and Fe₃O₄/MnO₂ Used for Paracetamol Adsorption.

IF 3.2 3区材料科学 Q3 CHEMISTRY, PHYSICAL

Materials Pub Date : 2025-08-21 DOI:10.3390/ma18163914

Adina Stegarescu, Ildiko Lung, Alin Cârdan, Mariana Bocșa, Alexandru Turza, Mihaela Diana Lazar, Monica Dan, Septimiu Tripon, Irina Kacso, Stelian Pintea, Ocsana Opriș, Maria-Loredana Soran

{"title":"Composite Materials Based on Biochar Obtained from Tomato Wastes and Fe3O4/MnO2 Used for Paracetamol Adsorption.","authors":"Adina Stegarescu, Ildiko Lung, Alin Cârdan, Mariana Bocșa, Alexandru Turza, Mihaela Diana Lazar, Monica Dan, Septimiu Tripon, Irina Kacso, Stelian Pintea, Ocsana Opriș, Maria-Loredana Soran","doi":"10.3390/ma18163914","DOIUrl":null,"url":null,"abstract":"The pharmaceutical contamination of water, especially by widely used drugs, presents important environmental and health concerns due to the inefficiency of conventional treatment methods. The present study proposes a sustainable solution using biochar (Bch) obtained from tomato waste, functionalized with Fe3O4 and MnO2 nanoparticles, for the removal of paracetamol from aqueous solutions. The composite materials were synthesized, characterized, and evaluated under varying conditions, including pH, temperature, contact time, initial drug concentration, and adsorbent dose. The materials exhibited porous structures with wide pore size distributions. Optimal removal efficiency was achieved for 30 mg L-1 paracetamol concentration, pH 2, 25 °C, 0.3 g L-1 adsorbent dose, and 20 min contact time. The Freundlich isotherm provided the best fit for the adsorption data. Kinetic studies revealed that the pseudo-second-order model best described the adsorption process. Thermodynamic parameters indicated that the process was spontaneous, feasible, and exothermic. Compared with similar materials derived from agricultural waste, the tomato waste-based composites demonstrated competitive adsorption capacities. These findings suggest that Bch-HCl/MnO2 and Bch-HCl/Fe3O4/MnO2 are promising, cost-effective adsorbents for mitigating pharmaceutical pollutants in wastewater.","PeriodicalId":18281,"journal":{"name":"Materials","volume":"18 16","pages":""},"PeriodicalIF":3.2000,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12387522/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.3390/ma18163914","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

The pharmaceutical contamination of water, especially by widely used drugs, presents important environmental and health concerns due to the inefficiency of conventional treatment methods. The present study proposes a sustainable solution using biochar (Bch) obtained from tomato waste, functionalized with Fe₃O₄ and MnO₂ nanoparticles, for the removal of paracetamol from aqueous solutions. The composite materials were synthesized, characterized, and evaluated under varying conditions, including pH, temperature, contact time, initial drug concentration, and adsorbent dose. The materials exhibited porous structures with wide pore size distributions. Optimal removal efficiency was achieved for 30 mg L^-1 paracetamol concentration, pH 2, 25 °C, 0.3 g L^-1 adsorbent dose, and 20 min contact time. The Freundlich isotherm provided the best fit for the adsorption data. Kinetic studies revealed that the pseudo-second-order model best described the adsorption process. Thermodynamic parameters indicated that the process was spontaneous, feasible, and exothermic. Compared with similar materials derived from agricultural waste, the tomato waste-based composites demonstrated competitive adsorption capacities. These findings suggest that Bch-HCl/MnO₂ and Bch-HCl/Fe₃O₄/MnO₂ are promising, cost-effective adsorbents for mitigating pharmaceutical pollutants in wastewater.

Abstract Image

查看原文本刊更多论文

番茄废弃物生物炭与二氧化铁复合材料对扑热息痛的吸附

由于传统的处理方法效率低下，水的药物污染，特别是被广泛使用的药物污染，引起了严重的环境和健康问题。本研究提出了一种可持续的解决方案，利用从番茄废料中获得的生物炭（Bch），用Fe3O4和MnO2纳米颗粒功能化，从水溶液中去除扑热息痛。在不同的条件下合成、表征和评价复合材料，包括pH、温度、接触时间、初始药物浓度和吸附剂剂量。该材料具有宽孔径分布的多孔结构。对乙酰氨基酚浓度为30 mg L-1， pH为2，吸附温度为25℃，吸附剂剂量为0.3 g L-1，接触时间为20 min，去除效果最佳。Freundlich等温线对吸附数据的拟合效果最好。动力学研究表明，拟二阶模型最能描述吸附过程。热力学参数表明，该反应是自发的、可行的、放热的。与从农业废弃物中提取的类似材料相比，番茄废弃物基复合材料表现出具有竞争力的吸附能力。这些研究结果表明，Bch-HCl/MnO2和Bch-HCl/Fe3O4/MnO2是一种有前景的、经济有效的废水中药物污染物的吸附剂。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

5.80

自引率

14.70%

发文量

7753

审稿时长

1.2 months

期刊介绍： Materials (ISSN 1996-1944) is an open access journal of related scientific research and technology development. It publishes reviews, regular research papers (articles) and short communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Materials provides a forum for publishing papers which advance the in-depth understanding of the relationship between the structure, the properties or the functions of all kinds of materials. Chemical syntheses, chemical structures and mechanical, chemical, electronic, magnetic and optical properties and various applications will be considered.