b掺杂莲花花粉生物炭光热活化高碘酸盐非自由基途径降解对乙酰氨基酚：光热过程热效应的意义

IF 8.1 1区工程技术 Q1 ENGINEERING, CHEMICAL

Separation and Purification Technology Pub Date : 2025-05-25 DOI:10.1016/j.seppur.2025.133707

Lei Qin , Shuyuan Hu , Huan Yi , Wenjun Wang , Cui Lai , Shiyu Liu , Dengsheng Ma , Tao Tong , Hao Deng , Guangjie Lv

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引用次数: 0

摘要

基于高碘酸盐（PI）的高级氧化技术已成为环境修复的关键解决方案。然而，现有的活化方法是能源密集型的，这推动了对可持续替代方案的需求。本研究建立了一种基于b掺杂莲花花粉生物炭（CB500）的PI光热活化方法来降解对乙酰氨基酚（ACE）。在CB500/PI光热活化体系中，ACE可在15 min内完全降解，比光活化体系快17.71倍。淬火实验、电子顺磁共振和电化学实验均证实单线态氧（1O2）是主要的反应物质。光热贡献分析表明，系统中热效应占主导地位。此外，该系统具有良好的抗干扰性。它的降解能力几乎不受天然有机物（NOM）的影响，在很宽的pH范围内保持优异的降解性能。此外，该系统在实际水样中显示出ACE降解的潜力。这项工作为光热PI活化的进展提供了新的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

B-doped lotus pollen biochar photothermal activating periodate for acetaminophen degradation by non-radical pathway: Significance of thermal effect from the photothermal process

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B-doped lotus pollen biochar photothermal activating periodate for acetaminophen degradation by non-radical pathway: Significance of thermal effect from the photothermal process

Periodate (PI)-based advanced oxidation emerges as a key solution for environmental remediation. However, existing activation methods are energy-intensive, driving demand for sustainable alternatives. In this study, a photothermal activation method for PI based on B-doped lotus pollen biochar (CB500) was developed to degrade acetaminophen (ACE). In the CB500/PI photothermal activation system, ACE could be completely degraded within 15 min, which was 17.71 times faster than light activation system. Quenching experiments, electron paramagnetic resonance, and electrochemical tests proved singlet oxygen (¹O₂) was the main reactive species. Photothermal contribution analysis revealed that thermal effects predominated in the system. Besides, the system showed a high resistance to interference. Its degradation capability was almost unaffected by natural organic matter (NOM) and maintained excellent degradation performance over a wide pH range. Moreover, this system exhibited potential for ACE degradation in actual water samples. This work provides novel insights into the advancement of photothermal PI activation.

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来源期刊

Separation and Purification Technology 工程技术-工程：化工

CiteScore

14.00

自引率

12.80%

发文量

2347

审稿时长

43 days

期刊介绍： Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.