Degradation of emerging pollutant CBZ by a novel hydrogen-promoted Fenton system constructed with Pd/UiO-66(Zr)-2OH

IF 4.8 2区化学 Q2 CHEMISTRY, PHYSICAL

Applied Catalysis A: General Pub Date : 2025-02-05 DOI:10.1016/j.apcata.2024.120065

Xin-Hao Shen , Feng Liu , Qin-Qin Chen , Ying Gao , Xiao-Wen Wang , Xin Liu

引用次数: 0

Abstract

The efficient degradation of emerging pollutants in water, represented by CBZ, is receiving increasing attention from all sectors of society. Although advanced oxidation reactions represented by Fenton reaction can efficiently degrade emerging pollutants, the problem of iron sludge that comes with it is hindering the further promotion of this technology. Herein, UiO-66(Zr)-2OH material was synthesized by hydrothermal method and loaded with Pd⁰ NPs on the surface of the material by in situ reduction. The MOFs-H₂-Accelerated Catalytic Fenton system was constructed by accelerating the regeneration of Fe(II) in the system by activating the [H] produced by H₂ introduced into the system at room temperature and pressure. Within 180 min, the removal of the target pollutant CZB could reach more than 99 % under the condition of only 25 µmol of Fe(II) and 25 mmol of H₂O₂.

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Pd/UiO-66(Zr)-2OH构建新型氢促进Fenton体系降解新污染物CBZ

以CBZ为代表的新型水体污染物的高效降解正日益受到社会各界的关注。虽然以Fenton反应为代表的高级氧化反应可以有效地降解新出现的污染物，但随之而来的铁泥问题阻碍了该技术的进一步推广。本文采用水热法合成了UiO-66(Zr)-2OH材料，并通过原位还原在材料表面负载了Pd0 NPs。在室温常压下，通过激活引入体系的H2产生的[H]，加速体系中Fe（II）的再生，构建了mofs -H2加速催化Fenton体系。在Fe（II）浓度为25µmol、H2O2浓度为25 mmol的条件下，在180 min内对目标污染物CZB的去除率可达99 %以上。

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

Applied Catalysis A: General 化学-环境科学

CiteScore

9.00

自引率

5.50%

发文量

415

审稿时长

24 days

期刊介绍： Applied Catalysis A: General publishes original papers on all aspects of catalysis of basic and practical interest to chemical scientists in both industrial and academic fields, with an emphasis onnew understanding of catalysts and catalytic reactions, new catalytic materials, new techniques, and new processes, especially those that have potential practical implications. Papers that report results of a thorough study or optimization of systems or processes that are well understood, widely studied, or minor variations of known ones are discouraged. Authors should include statements in a separate section "Justification for Publication" of how the manuscript fits the scope of the journal in the cover letter to the editors. Submissions without such justification will be rejected without review.