Influence of the meso-macroporous ZrO2–TiO2 calcination temperature on the pre-reduced Pd/ZrO2–TiO2 (1/1) performances in chlorobenzene total oxidation

Deep insight into the catalytic removal mechanism of a multi-active center catalyst for chlorobenzene: an experiment and density functional theory study

Catalytic oxidation is a promising dioxin purification removal technique due to high efficiency and low consumption, as well as no secondary pollution.

The catalytic combustion of CH2Cl2 over SO42−–TixSn1−x modified with Ru

Ru/SO₄²⁻–Ti_xSn_1−x presented high activity and selectivity due to the stable oxidization activity of Ru and super-strong acidity from SO₄²⁻.

Synergistic effect of PANI-ZrO2 composite as antibacterial, anti-corrosion, and phosphate adsorbent material: synthesis, characterization and applications

The increasing number of bacteria-related problems and presence of trace amounts of phosphate in treated wastewater effluents have become a growing concern in environmental research. The use of antibacterial agents and phosphate adsorbents for the treatment of wastewater effluents is of great importance. In this study, the potential applications of a synthesized polyaniline (PANI)-zirconium dioxide (ZrO₂) composite as an antibacterial, phosphate adsorbent and anti-corrosion material were systematically investigated. The results of an antibacterial test reveal an effective area of inhibition of 14 and 18 mm for the Escherichia coli and Staphylococcus aureus bacterial strains, respectively. The antibacterial efficiency of the PANI-ZrO₂ composite is twice that of commercial ZrO₂. In particular, the introduction of PANI increased the specific surface area and roughness of the composite material, which was beneficial to increase the contact area with bacterial and phosphate. The experimental results demonstrated that phosphate adsorption studies using 200 mg P/L phosphate solution showed a significant phosphate removal efficiency of 64.4%, and the maximum adsorption capacity of phosphate on the solid surface of PANI-ZrO₂ is 32.4 mg P/g. Furthermore, PANI-ZrO₂ coated on iron substrate was tested for anti-corrosion studies by a natural salt spray test (7.5% NaCl), which resulted in the formation of no rust. To the best of our knowledge, no works have been reported on the synergistic effects of the PANI-ZrO₂ composite as an antibacterial, anti-corrosion, and phosphate adsorbent material. PANI-ZrO₂ composite is expected to be a promising comprehensive treatment method for water filters in the aquaculture industry and for use in water purification applications.

Enhancement mechanism of Sn on the catalytic performance of Cu/KIT-6 during the catalytic combustion of chlorobenzene

Sn promoted the redox capacity of Cu²⁺ and Sn⁴⁺, thus greatly reducing the surface chloride-deposition during the chlorobenzene catalytic combustion process.