Novel ACr2O4 (A = Mg, Cu, Ni)/MIL-101(Cr) photocatalysts: Synthesis, characterization, performance prediction and applications for the photo–degradation of tetracycline hydrochloride

IF 4.1 3区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-11-26 DOI:10.1016/j.jphotochem.2024.116173

Jinjin Ding , Shifa Wang , Yuanyuan Zhang , Xinmiao Yu , Likai Deng , Xianlun Yu , Lei Hu , Huajing Gao , Leiming Fang , Jagadeesha Angadi.V , M. Atif , Ashok Kumar

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Abstract

The Z-scheme ACr₂O₄ (A = Mg, Cu, Ni)/MIL-101(Cr) heterojunction photocatalysts have been synthesized by a simple method. By means of phase structure, microstructure and composition analysis, it was determined that the ACr₂O₄ (A = Mg, Cu)/MIL-101(Cr) photocatalysts only contained the target component, while the NiCr₂O₄/MIL-101(Cr) photocatalyst also contained a small amount of Cr₂O₃ impurities. The photocatalytic experiments showed that the degradation percentage of MgCr₂O₄/MIL-101(Cr) photocatalyst reached 78 % when the mass percentage of MIL-101(Cr), the catalyst content, the initial tetracycline hydrochloride concentration, pH value and illumination time were 10 %, 1 g/L, 50 mg/L, 7 and 120 min, respectively. The neural network model can effectively predict the photocatalytic activity of MgCr₂O₄/MIL-101(Cr) photocatalyst. Various characterization confirmed that the holes, hydroxyl radicals and superoxide radicals are the main active species involved in photocatalytic degradation of tetracycline hydrochloride. This research will provide experimental basis and theoretical support for exploring the construction of new metal–organic framework (MOF) based heterojunction photocatalysts.

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来源期刊

Journal of Photochemistry and Photobiology A-chemistry 化学-物理化学

CiteScore

7.90

自引率

7.00%

发文量

580

审稿时长

48 days

期刊介绍： JPPA publishes the results of fundamental studies on all aspects of chemical phenomena induced by interactions between light and molecules/matter of all kinds. All systems capable of being described at the molecular or integrated multimolecular level are appropriate for the journal. This includes all molecular chemical species as well as biomolecular, supramolecular, polymer and other macromolecular systems, as well as solid state photochemistry. In addition, the journal publishes studies of semiconductor and other photoactive organic and inorganic materials, photocatalysis (organic, inorganic, supramolecular and superconductor). The scope includes condensed and gas phase photochemistry, as well as synchrotron radiation chemistry. A broad range of processes and techniques in photochemistry are covered such as light induced energy, electron and proton transfer; nonlinear photochemical behavior; mechanistic investigation of photochemical reactions and identification of the products of photochemical reactions; quantum yield determinations and measurements of rate constants for primary and secondary photochemical processes; steady-state and time-resolved emission, ultrafast spectroscopic methods, single molecule spectroscopy, time resolved X-ray diffraction, luminescence microscopy, and scattering spectroscopy applied to photochemistry. Papers in emerging and applied areas such as luminescent sensors, electroluminescence, solar energy conversion, atmospheric photochemistry, environmental remediation, and related photocatalytic chemistry are also welcome.