Chuyu Lu , Futao Yi , Jianqing Ma , Mika Erik Tapio Sillanpää , Minghua Zhou , Qing Ye , Huixia Jin , Kefeng Zhang
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引用次数: 0
Abstract
Metal-organic frameworks (MOFs), such as MIL-125(Ti), are advanced photocatalytic materials due to their tunable compositions and functionalities. However, their practical application in photocatalysis is often limited by their wide bandgap and the inherent structural instability. This study presents a strategy to improve the photocatalytic performance of MIL-125(Ti) by hydrothermal reaction combined with an in-situ decomposition to generate nano TiO2, creating a composite with g-C3N5 nanosheets. The obtained composite exhibited a rate constant of 0.00122 min−1 mg−1 for the degradation of tetracycline hydrochloride under visible light irradiation, which is 24.4 and 20.3 times that of g-C3N5 and MIL-125(Ti), respectively. Characterization results indicated the formation of an effective composite structure that improved the separation efficiency of photogenerated carriers and promoted the generation of reactive oxygen species. The in-situ generated TiO2 within the MIL-125(Ti)/g-C3N5 composite during the preparation and photocatalysis processes not only compensated for the structural damage to the original MIL-125(Ti) but also significantly enhanced its degradation performance under visible light. The recyclability and stability of the composite material were also demonstrated, highlighting its potential for practical photocatalytic applications.
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.
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