Effect of Sr and Ti substitutions on optical and photocatalytic properties of Bi_1-x Sr _x Fe_1-x Ti _x O₃ nanomaterials.

ABSTRACT: The potential use of down-sized BFO-xSTO systems (x ≤ 25%) as highly efficient photoanodes for photocatalytic water splitting is investigated. BFO-xSTO is prepared by a solid-state method and subsequently deposited by spray coating. The compounds possess rhombohedral symmetry for x ≤ 15% and phase coexistence for x > 15%, as demonstrated by Raman spectroscopy and transmission electron microscopy. Our findings revealed a drastic grain size decrease with increasing STO content, namely 260 nm for BFO to 50 nm for BFO with 25% STO. Moreover, BFO-xSTO, x > 10% exhibited high optical absorption (> 80%) in the full spectrum and interestingly a very promising band alignment with water redox potentials. Moreover, the photochemical measurements reveal

SUBMITTER: Benyoussef M 

PROVIDER: S-EPMC9890516 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature