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Issue: 2026: Natural Sciences Issue - Online First
Section: Natural Sciences Issue (English)
DOI: 10.52714/dthu.ns.2885.1893
Date Published: 03/05/2026
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Pham, D. D., & Huỳnh, T. D. (2026). Enhanced durability of Mn-supported Fe/diatomite catalyst for phenol oxidation. Dong Thap University Journal of Science, Online First. https://doi.org/10.52714/dthu.ns.2885.1893

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Enhanced durability of Mn-supported Fe/diatomite catalyst for phenol oxidation

Dinh Du Pham1, Thanh Danh Huỳnh2,
1 1Trường Đại học Thủ Dầu Một, thành phố Hồ Chí Minh, Việt Nam
2 THPT Giồng Riềng

Main Article Content

Abstract

In this paper, the Fenton-type oxidation of phenol over Mn-Fe/diatomite catalyst was studied. The Mn-Fe/diatomite composite was synthesised by using a hydrothermal process from a colloidal solution containing Mn(II), Fe(III), and diatomite. Under suitable synthesis conditions, the obtained Mn-Fe/diatomite contained 6.23% Fe and 0.10% Mn (by mass) with a specific surface area of ​​53.2 m2/g. Phenol conversion can reach 99% after 240 minutes of reaction on the Mn-Fe/diatomite catalyst (under the following conditions: phenol concentration 1 g/L; catalyst content 1 g/L; H2O2 content 6.5 g/L; reaction temperature 50°C). The bimetallic Mn-Fe/diatomite catalyst has lower oxidation activity than the monometallic Fe/diatomite catalyst but higher durability and reusability.

Keywords

Durability, Fenton-type, Mn-Fe/diatomite, phenol oxidation, reusability.

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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