Publications by authors named "Chizoba I Ezugwu"

Defective MIL-88B(Fe) nanorods are exploited as exemplary iron-bearing metal-organic framework (MOF) catalyst for molecular oxygen (O) activation at ambient temperature, triggering effective catalytic oxidation of formaldehyde (HCHO), one of the major indoor air pollutants. Defective MIL-88B(Fe) nanorods, growing along the [001] direction, expose abundant coordinatively unsaturated Fe-sites (Fe-CUSs) along extended hexagonal channels with a diameter of ca. 5 Å, larger enough for the diffusion of O (3.

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Article Synopsis
  • Environmental pollution threatens sustainable development and global health, prompting the search for cost-effective technologies for the ecological crisis.
  • Microbial fuel cells (MFCs) show promise for both wastewater treatment and power generation, utilizing microorganisms to convert organic materials into electricity and measure biological oxygen demand (BOD).
  • Despite advancements in MFC-based BOD sensors, challenges remain in developing effective materials and methods for real-time wastewater monitoring.
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The development of water oxidation catalysts based on Earth-abundant metals that can function at neutral pH remains a basic chemical challenge. Here, we report that salophen complexes with Ni(ii), Cu(ii), and Mn(ii) can catalyse photochemical water oxidation to molecular oxygen in the presence of [Ru(bpy)] as a photosensitizer and NaSO as an oxidant in phosphate buffer of pH 7.0.

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Industrial dye effluents with low biodegradability are highly toxic and carcinogenic on both human and aquatic lives, thus they are detrimental to the biodiversity of environment. Herein, this data set presents the potential of cationic Nickel based MOFs in the adsorption of charged and neutral dye molecules. Data set include a concise description of experimental conditions for the synthesis of imidazolium ligands, 1,3-bis(4-carboxyphenyl)imidazolium chloride (HLCl) and 1,3-bis(3,5-dicarboxyphenyl)imidazolium chloride (HLCl), and MOFs.

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The positively charged azolium moieties make imidazolium linker an ideal linker for the construction of cationic metal-organic frameworks because the ligand induces cationic environments in the frameworks. Therefore, we employed two imidazolium ligands, 1,3-bis(4-carboxyphenyl)imidazolium chloride (HLCl¯) and 1,3-bis(3,5-dicarboxyphenyl)imidazolium chloride (HLCl¯), to synthesize two nickel azolium-based MOFs, 1 and 2. The as-synthesis MOFs were characterized by PXRD, TGA, FE-SEM, HR-TEM, FTIR and BET measurements.

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