Recoverable impacts of ocean acidification on the tubeworm, : implication for biofouling in future coastal oceans.

Ocean uptake of anthropogenic CO causes ocean acidification (OA), which not only decreases the calcification rate, but also impairs the formation of calcareous shells or tubes in marine invertebrates such as the dominant biofouling tubeworm species, . This study examined the ability of tubeworms to resume normal tube calcification when returned to ambient pH 8.1 from a projected near-future OA level of pH 7.

Continuous-Flow Synthesis of Supported Magnetic Iron Oxide Nanoparticles for Efficient Isoeugenol Conversion into Vanillin.

This work presents the synthesis of iron oxide nanocatalysts supported on mesoporous Al-SBA-15 by using a continuous-flow setup. The magnetic nanomaterials were tested as catalysts in the oxidative disruption of isoeugenol by using hydrogen peroxide as a green oxidant, featuring high activities (63-88 % conversion) and good selectivities to vanillin (44-68 %). The catalytic systems exhibited good magnetic properties when synthesized under continuous-flow conditions at temperatures not exceeding 190 °C.

CuO-promoted degradation of sulfamethoxazole by α-FeO-catalyzed peroxymonosulfate under circumneutral conditions: synergistic effect, Cu/Fe ratios, and mechanisms.

To promote the application of iron oxides in sulfate radical-based advanced oxidation processes, a convenient approach using CuO as a catalyst additive was proposed. Composite catalysts based on α-FeO (CTX%CuO, X = 1, 2.5, 5, and 10) were prepared for peroxymonosulfate (PMS) activation, and sulfamethoxazole was used as a model pollutant to probe the catalytic reactivity.

Degradation of contaminants by Cu-activated molecular oxygen in aqueous solutions: Evidence for cupryl species (Cu).

Copper ions (Cu and Cu) have shown potential as Fenton-like activators for the circumneutral removal of organic contaminants from aqueous solutions. However, the major active species (cupryl species (Cu) versus hydroxyl radical (OH)) produced during the activation of hydrogen peroxide by Cu remain unclear. In this study, Cu-O oxidation, in which hydrogen peroxide is produced via the activated decomposition of dissolved molecular oxygen, was used to degrade sulfadiazine, methylene blue, and benzoic acid.