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This study explores the use of a Gd-doped Zinc-MOF composite as a catalyst for effectively removing antibiotics from water using photocatalysis. The Gd@Zinc-MOF material is synthesized in a one-step process and demonstrates semiconducting properties. It possesses a band gap of 3.15 eV, which allows for efficient photodegradation of antibiotics when exposed to UV light. The suitability of its catalytic activity is confirmed through characterization using analytical and spectroscopic methods. The photocatalytic process was conducted under optimal conditions, resulting in a remarkable 92.15% degradation of NFT (Nitrofurantoin). These conditions included a pH of 7, an antibiotic concentration of 30 mg/L, and a photocatalyst dosage of 20 mg/L, with a duration of 120 min. The photodecomposition process is illuminated by radical trapping experiments, highlighting the crucial role of O2˙−. In addition, the Gd@Zinc-MOF material exhibits remarkable stability when used repeatedly as a photocatalyst. In addition, the super capacitive activity of the material was extensively studied. Gd@Zinc-MOF exhibited a specific capacitance of 1156.25 F g−1 at a discharge current density of 1 A g−1, and maintained 93.07% of its capacitance after 4000 cycles. The study highlights the potential of Gd-doped Zinc-MOF composites as effective photocatalysts for water purification and promising electrode materials for future energy storage applications.Graphical Abstract: This study explores the use of a Gd-doped Zinc-MOF composite as a catalyst for effectively removing antibiotics from water using photocatalysis. The Gd@Zinc-MOF material is synthesized in a one-step process and demonstrates semiconducting properties. It possesses a band gap of 3.15 eV, which allows for efficient photodegradation of antibiotics when exposed to UV light. The suitability of its catalytic activity is confirmed through characterization using analytical and spectroscopic methods. The photocatalytic process was conducted under optimal conditions, resulting in a remarkable 92.15% degradation of NFT (Nitrofurantoin). These conditions included a pH of 7, an antibiotic concentration of 30 mg/L, and a photocatalyst dosage of 20 mg/L, with a duration of 120 min. The photodecomposition process is illuminated by radical trapping experiments, highlighting the crucial role of O2˙−. In addition, the Gd@Zinc-MOF material exhibits remarkable stability when used repeatedly as a photocatalyst. In addition, the super capacitive activity of the material was extensively studied. Gd@Zinc-MOF exhibited a specific capacitance of 1156.25 F g−1 at a discharge current density of 1 A g−1, and maintained 93.07% of its capacitance after 4000 cycles. The study highlights the potential of Gd-doped Zinc-MOF composites as effective photocatalysts for water purification and promising electrode materials for future energy storage applications. [ABSTRACT FROM AUTHOR]

This study investigates the innovative applications of the [Zn9(Cei)6(Bimb)*9]n(Zn-MOF) metal-organic framework and its composite with melamine sponge (Zn-MOF@MS) in the domains of photocatalytic degradation and fluorescence sensing. The Zn-MOF@MS composite demonstrates exceptional performance in the photocatalytic degradation of Rose Bengal (RB) dye, achieving a high degradation rate under optimized conditions (pH 5, 10 mg/L RB concentration, 6 mg photocatalyst dosage, and 120-minute reaction time). Additionally, Zn-MOF exhibits notable fluorescence sensing capabilities, enabling the detection of 2-nitrotoluene (2NT) and sucrose at low concentrations, with detection limits of 0.298 ppm and 1.129 ppm, respectively. These results highlight the novel integration of Zn-MOF with a melamine sponge matrix, showcasing significant advancements in both environmental remediation and analytical chemistry. The study underscores the potential of Zn-MOF@MS as a versatile material with substantial implications for improving dye degradation processes and enhancing chemical sensing precision. This work advances the field by demonstrating the dual functionality of Zn-MOF materials and providing a robust platform for future research and technological development in environmental and analytical applications. [ABSTRACT FROM AUTHOR]