Photo-Enhanced Peroxymonosulfate Activation via Well-Dispersed Cobalt Nanoparticles Encapsulated on Carbon Nitride for 2,8-Dichlorodibenzo-p-dioxin Removal.

Yao Yue, Teer Wen, Yunfei He, Xuetong Qu, Jibo Dou, Yuchi Zhong, Jiafeng Ding, Hangjun Zhang

Abstract read

In one paragraph

Article in Molecules (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

8 authors.

Yao YueSchool of Engineering, Hangzhou Normal University, Hangzhou 310018, China.

Teer WenSchool of Engineering, Hangzhou Normal University, Hangzhou 310018, China.

Yunfei HeSchool of Engineering, Hangzhou Normal University, Hangzhou 310018, China.

Xuetong QuSchool of Engineering, Hangzhou Normal University, Hangzhou 310018, China.

Jibo DouSchool of Engineering, Hangzhou Normal University, Hangzhou 310018, China.

Yuchi ZhongSchool of Engineering, Hangzhou Normal University, Hangzhou 310018, China.

Jiafeng DingSchool of Engineering, Hangzhou Normal University, Hangzhou 310018, China.

Hangjun ZhangSchool of Engineering, Hangzhou Normal University, Hangzhou 310018, China.

Funding

"Pioneer" and "Leading Goose" R&D Program of Zhejiang Grant No. 2022C03085

6 · The paper itself

Abstract

The removal of polychlorinated dibenzo-p-dioxins (PCDDs) via advanced oxidation processes (AOPs) poses a significant challenge due to their high toxicity and chemical stability. In this study, a series of well-dispersed cobalt nanoparticles supported on carbon nitrides (xCoCNs) was synthesized to activate peroxymonosulfate (PMS) for 2,8-dichlorodibenzo-p-dioxin (2,8-DCDD) degradation under visible light. The catalysts prepared were characterized using SEM, XPS, photoluminescence (PL), and UV-Vis diffuse reflectance spectroscopy (UV-Vis DRS). Among them, 2CoCN with an optimal Co content exhibited the highest photocatalytic efficiency, achieving 90.5% degradation of 2,8-DCDD within 160 min under visible light/persulfate oxidation (Vis+PMS+2CoCN system). Compared with other catalysts, 2CoCN exhibited superior optical performance and a narrower bandgap, enabling efficient excitation under visible light (Vis). Notably, all xCoCNs demonstrated pH adaptability, achieving complete degradation of 2,8-DCDD under neutral conditions (pH = 7) without additional acid/alkali adjustment. Through rigorous free radical capture experiments, it was demonstrated that SO

Indexed as

2,8-dichlorodibenzo-p-dioxinadvanced oxidation processescobalt-doped carbon nitrideperoxymonosulfate activationreactive oxygen species

Identifiers

PMID40363724

DOI10.3390/molecules30091917

PMCPMC12073787

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