Urchin-like Bi2S3 modified TiO2 for improved photocathodic protection of 304SS
Source abstract
Abstract
Severe charge recombination and poor light absorbance are the limiting factors for TiO 2 to access efficient photocathodic protection (PCP) towards metals. Engineering the TiO 2 with Bi 2S 3 to form the heterojunction is proposed to overcome these limitations. Impressively, the optimal Bi 2S 3-12 h@TiO 2 photoanode coupled with 304SS displays an open circuit potential that negatively shifts to −480 mV vs Ag/AgCl, accompanied by a photoinduced current of 18.5μA/cm 2. Comprehensively, characterizations discover that a tight interface between TiO 2 and Bi 2S 3 exhibits strong electron interaction. The resulting enhanced PCP performance is attributed to extending the photoresponse range, increasing the carrier density, and improving the photocarrier separation. This work proves and validates the effectiveness of Bi 2S 3@TiO 2 in enhancing the PCP performance and provides the instruction to construct a high-performance photoanode.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Ga2O3 and related materials · Electronic and Structural Properties of Oxides
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (38)
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