ACS Applied Nano Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 22, 2024

In this work, by integrating TiO2 nanoparticles and sodium carboxymethyl cellulose (CMC) binder, a green bifunctional nanostructured coating (T-SCMC-vac.) directly coupled with 304SS was designed under vacuum thermal treatment, aiming to achieve methyl orange degradation metal anticorrosion. The T-SCMC-vac. exhibited reaction constant 1.7 times higher for degrading compared its counterpart in the simulated seawater environment, demonstrating good photocatalytic performance. Simultaneously, provided effective photocathodic protection 304SS. open circuit potential negatively shifted −500 mV (vs Ag/AgCl), photoresponse current corrosion densities reached approximately 10 μA cm–2. Furthermore, showed stability, as evidenced 98% retention capability after five cycles 14 h long-term protection. experimental results theoretical calculations suggest that enhanced performance can be attributed chemical interaction between CMC via C–O–Ti bonds, which significantly facilitated photogenerated carrier transport aligned positions of TiO2, reactive oxygen species, Our findings provide facile strategy designing coatings on ocean-based facilities pollutant anticorrosion properties.

Язык: Английский