Experimental assessment of bulk vs microfluidic reactors for nano-bio-photocatalyst synthesis and antibiotic degradation

IF 3 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

International Journal of Environmental Science and Technology Pub Date : 2024-12-24 DOI:10.1007/s13762-024-06290-4

S. Sohrabi, M. K. Moraveji

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Abstract

In this work, several characteristics of microfluidic and bulk reactors, such as synthesis, activity, kinetics, and stability, have been compared. Synthesis aspects reveal that the microfluidic system is more successful in reducing the size distribution. Moreover, synthesis temperature and time have been decreased from above 100 °C to room temperature and from hours to minutes. Two superb properties of microfluidic system which assist the synthesis of nano-materials are the selective incorporation of nanoparticles (M4) and local heating (M5). The bio-photo-catalyst synthesized in microreactor M1 at 70 °C is capable of up amoxicillin (with a high concentration of 50 ppm) degradation with 100% efficiency. The kinetics data can show that the reaction rate in microfluidic system is more than 40 times of the bulk. The stability test showed that after five cycles of use, 95% and 70 of the efficiency over amoxicillin degradation has been kept in microfluidic (M5) and bulk systems, respectively.

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本体反应器与微流控反应器用于纳米生物光催化剂合成和抗生素降解的实验评价

本文比较了微流控反应器和本体反应器在合成、活性、动力学和稳定性等方面的特点。合成方面表明，微流控系统在减小尺寸分布方面取得了较好的效果。此外，合成温度和时间从100℃以上降低到室温，从数小时降低到数分钟。微流控系统辅助纳米材料合成的两个极好的特性是纳米颗粒的选择性掺入（M4）和局部加热（M5）。在70℃条件下，在M1微反应器中合成的生物光催化剂对阿莫西林（高浓度50 ppm）的降解效率为100%。动力学数据表明，微流控系统的反应速率是体体的40倍以上。稳定性测试表明，在5个循环使用后，微流控系统（M5）和散装系统中阿莫西林的降解效率分别保持在95%和70%。

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

International Journal of Environmental Science and Technology 环境科学-环境科学

CiteScore

5.60

自引率

6.50%

发文量

806

审稿时长

10.8 months

期刊介绍： International Journal of Environmental Science and Technology (IJEST) is an international scholarly refereed research journal which aims to promote the theory and practice of environmental science and technology, innovation, engineering and management. A broad outline of the journal''s scope includes: peer reviewed original research articles, case and technical reports, reviews and analyses papers, short communications and notes to the editor, in interdisciplinary information on the practice and status of research in environmental science and technology, both natural and man made. The main aspects of research areas include, but are not exclusive to; environmental chemistry and biology, environments pollution control and abatement technology, transport and fate of pollutants in the environment, concentrations and dispersion of wastes in air, water, and soil, point and non-point sources pollution, heavy metals and organic compounds in the environment, atmospheric pollutants and trace gases, solid and hazardous waste management; soil biodegradation and bioremediation of contaminated sites; environmental impact assessment, industrial ecology, ecological and human risk assessment; improved energy management and auditing efficiency and environmental standards and criteria.