Solar-Driven Degradation of Malachite Green by Photoenzyme: Mechanisms and Sustainable Water Treatment

IF 9.7 1区 环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL Journal of Cleaner Production Pub Date : 2025-03-17 DOI:10.1016/j.jclepro.2025.145335
Yang Zheng, Gan Luo, Guosheng Chen, Ruifen Jiang, Gangfeng Ouyang
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引用次数: 0

Abstract

Malachite Green (MG), a widely used industrial dye and biocide, poses significant environmental and health risks due to its non-biodegradability and toxicity. In this study, we employed a novel solar-driven photoenzyme coupled catalytic system, Lac@PHOF, which combines the enzyme laccase with a porous photoactive hydrogen-bonded organic framework (PHOF; synthesized from H4TBAPy as PFC-1) to efficiently degrade MG under visible light irradiation. The Lac@PHOF system exhibited remarkable photocatalytic performance, achieving 92% MG removal within just 15 minutes under natural sunlight, with an impressive conversion efficiency of 18,300 mg/g/h. The degradation process was primarily driven by singlet oxygen and photogenerated holes, converting MG into non-toxic small molecules. Lac@PHOF exhibited excellent stability, resisting pH extremes (3-11), long-term storage (35 days), and elevated temperatures (up to 80°C), while maintaining degradation efficiency after 10 reuse cycles. The system’s high efficiency, combined with the absence of sacrificial agents, positions Lac@PHOF as a promising candidate for sustainable water treatment applications. These findings underscore the potential of solar-driven photoenzyme systems for environmental remediation, offering a cost-effective and eco-friendly approach to the removal of organic pollutants from aquatic environments.

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来源期刊
Journal of Cleaner Production
Journal of Cleaner Production 环境科学-工程:环境
CiteScore
20.40
自引率
9.00%
发文量
4720
审稿时长
111 days
期刊介绍: The Journal of Cleaner Production is an international, transdisciplinary journal that addresses and discusses theoretical and practical Cleaner Production, Environmental, and Sustainability issues. It aims to help societies become more sustainable by focusing on the concept of 'Cleaner Production', which aims at preventing waste production and increasing efficiencies in energy, water, resources, and human capital use. The journal serves as a platform for corporations, governments, education institutions, regions, and societies to engage in discussions and research related to Cleaner Production, environmental, and sustainability practices.
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