We report the preparation of TiO2 nanotubes coupled with a narrow bandgap semiconductor, i.e., Bi2S3, to improve the photocathodic protection property of TiO2 for metals under visible light. Bi2S3/TiO2 nanotube films were successfully synthesized using the successive ionic layer adsorption and reaction (SILAR) method. The morphology and structure of the composite films were studied by scanning ...

The global annual steel waste associate with interface corrosion represent significant challenges for steel’s lifetime as well sustainable development of modern society. Herein, we report a unique multi-dimensional quaternary hybrid superstructure photocathodic protection (PCP) which not only has an intense visible to near-infrared absorptivity generating ‘hot’ electrons but also can provide ti...

CuInSe2 nanoparticles were successfully deposited on the surface of TiO2 nanotube arrays (NTAs) by a solvothermal method for photocathodic protection (PCP) metals. Compared with NTAs, CuInSe2/TiO2 composites exhibited stronger visible light absorption and higher photoelectric conversion efficiency. After 316 Stainless Steel (SS) was coupled CuInSe2/TiO2, potential SS could drop to −0.90 V. The ...

Photoelectrochemical measurements were used to study the photoelectrode characteristics of composite nanoparticles composed of fullerene C₆₀ and partially hydrolyzed aluminum phthalocyanine chloride (AlPc). In cyclic voltammetry measurements, the electrodes coated with the composite nanoparticles were found to have photoanodic [electron donor: 2-mercaptoethanol (ME)] and photocathodic (electron...

Nanocrystalline Bi2S3 shells were conformally deposited on ZnO nanowire arrays via a successive ionic layer adsorption and reaction approach. Microstructure, optical, electric properties of the as-prepared ZnO/Bi2S3 core/shell heterostructures thoroughly investigated using various characterization electrochemical methods. Compared with pristine photoanode (?734 mV 0.57 mA·cm?2), type-II heteroj...