Efficiently activate peroxymonosulfate by MOFs loaded cobalt ferrite for tetracycline degradation

化学工业与工程

Chemcial Industry and Engineering

2024, Vol. 41

Issue (3) :170-178 DOI: 10.13353/j.issn.1004.9533.20220326

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Efficiently activate peroxymonosulfate by MOFs loaded cobalt ferrite for tetracycline degradation

WANG Xiang, YANG Na, SUN Yongli, JIANG Bin, XIAO Xiaoming, ZHANG Longfei, ZHANG Lühong

School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China

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Abstract The magnetic function catalyst CoFe₂O₄/UiO-66-NH₂ (CF/U6N) of cobalt ferrite and MOF_S material coupling is successfully prepared through the simple hydrothermal to activate peroxymonosulfate on tetracycline (TC) degradation. Due to the improved dispersion of the CoFe₂O₄ active component of and the enhanced interaction with the U6N, CF/U6N showed attractive catalytic activity and stability, and could effectively degrade pollutants with high degradation difficulty such as tetracycline hydrochloride (TC) within 30 min with a degradation efficiency of 93.2%. The removal efficiency of TC remained above 80% after 5 consecutive cycles. Meanwhile, the CF/U6N functional catalyst could maintain favorable degradation activity of TC in a wide pH range (3.0~9.0) and also exhibited high catalytic activity for TC degradation under the condition of inorganic anion coexistence. Quenching tests and electron paramagnetic resonance spectrum show that the degradation process of TC involves both free radical and non-free radical pathways, and both sulfate radicals and singlet oxygen play an important role in TC degradation processes.

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Keywords： cobalt ferrite peroxymonosulfate tetracycline degradation reactive oxygen species

Received 2022-04-25;

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WANG Xiang, YANG Na, SUN Yongli, JIANG Bin, XIAO Xiaoming, ZHANG Longfei, ZHANG Lühong.Efficiently activate peroxymonosulfate by MOFs loaded cobalt ferrite for tetracycline degradation[J] Chemcial Industry and Engineering, 2024,V41(3): 170-178

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