Shows improved photocatalytic H2 generation and dye degradation, suggesting an innovative approach to environmental cleanup.
The growing environmental crises posed by synthetic dye pollution, chemical warfare agents (CWAs), and energy scarcity necessitate innovative, multifunctional solutions. In this regard, we present a hybrid MIL-125-Ti/Chlorophyll (MTC) nanocomposite that simultaneously addresses these challenges under visible-light irradiation. By integrating natural chlorophyll (0.2 wt %) into the MIL-125-Ti framework, we significantly enhance visible-light absorption and charge-separation efficiency through natural photosensitizers. The composite demonstrates exceptional triple functionality: (a) photocatalytic dye degradation, achieving 100% degradation of Rhodamine B (20 ppm) within 180 min (vs 76.2% for pristine MIL-125) via pseudo-first-order kinetics having rate constant: 0.02037 min –1; (b) hydrogen generation, with a 10-fold increase in photocurrent density (1.7 μA cm –2 ) and a 1.5 times higher H 2 production rate (265 μmol h –1 ) compared to MIL-125; and (c) CWA detoxification, completely degrading Sarin (GB) within 15 min (vs 92.5% by MIL-125 in 30 min) following first-order kinetics. Therefore, the effective generation of the composite acted as a suitable and sustainable catalyst for light-driven environmental applications. Interestingly, the composite’s stability remains intact even after four dye-degradation cycles. This work has exhibited a multifunctional platform for environmental remediation and clean energy production.
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Dhal et al. (2026) studied this question.
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