Enhanced reduction of bromate in water by 2-dimensional porous Co3O4 via catalytic hydrogenation

As catalytic hydrogenation is validated as one of the most useful approach to reduce a potential carcinogenic bromate in water, usage continuous purge H2 gas and precious metal catalysts are typically required, making it less feasible for practical implementation. Since sodium borohydride (NaBH4) represents alternative source releasing non-precious (cobalt (Co)) usually required accelerate hydrolysis NaBH4 faster production, combination between Co-based could be favorable hydrogenation. Especially, even more advantageous fabricate porous heterogeneous catalyst with high surface area. Thus, this study aims construct such novel reducing using borohydride. Herein, Co-coordinated framework TMC ligand (CoTMC) employed precursor, which then transformed into hexagonal Co3O4 (HPCO) via one-step calcination. The resultant HPCO possesses remarkable surficial oxygen vacancies well textural properties comparison NP. Importantly, completely bromide within 20 min. calculated removal capacity achieved 781.25 μmol/g, activation energy (Ea) also 28.5 kJ/mol. Besides, exhibits activities reduction presence various anions. Moreover, reusable over multiple-cycles without any change activities. These features indicate that robust effective water.