Role of titanate-based perovskites in solar water splitting: an overview

Abstract

Currently, for energy requirement, mainly dependent on fossil fuels which have harmful effects on environment. There is an urgent requirement of alternative energy source. Solar energy is particularly attractive due to cleanliness and inexhaustible nature. The utilization of solar energy is being intensively studied worldwide. Solar water splitting is an encouraging strategy for feasible production of renewable hydrogen. For solar water splitting there is need of non-toxic, low cost, efficient and stable photocatalyst. Recently, titanate-based perovskite photocatalysts have attracted attention for photoelectrochemical water splitting under solar light irradiation. Due to their wide applications, tunable band gap and high photo-corrosion stability titanate-based perovskites are used in hydrogen generation. The main objective of this review is to overview of the recent developments in titanate-based perovskites, their modification and role in hydrogen production under solar light irradiation.

An Emerging Trend in the Synthesis of Iron Titanate Photocatalyst Toward Water Splitting

“…[23] In recent times, Centurion et al [24] and Imrich et al [25] reviewed the potential of pseudobrookite Fe 2 TiO 5 for solar water splitting systems. The reviews by Rafique et al, [26] Amika et al, [27] Do et al [28] and Aljar et al [29] focused on TiO 2 -based photocatalysts; less emphasis was made concerning iron titanate for photocatalytic activities. Thus, the present review article on the synthesis and photocatalytic properties of iron titanate is expected to be useful for the researchers in the field.…”

“…A potential difference is created between them resulting in reduction and oxidation reactions occurring A number of publications on iron titanate in water-splitting applications. [27] Figure 3. (a) Hematite ore (b), arrangement of ions of the rhombohedral hematite crystal with a corundum structure, (c) hexagonal arrangement of the metal cations in ilmenite.…”

“…reviewed the potential of pseudobrookite Fe 2 TiO 5 for solar water splitting systems. The reviews by Rafique et al., [26] Amika et al., [27] Do et al [28] . and Aljar et al [29] .…”

Construction of a 3D/2D Z-Scheme Heterojunction for Promoting Charge Separation and Augmented Photocatalytic Hydrogen Evolution

“…Additionally, NBT also possesses interesting perovskite structure, high stability, and ferroelectric nature which makes it ideal for photocatalysis applications. Although the ferroelectric and piezoelectric properties of NBT have been widely explored, there are few reports available in literature regarding the application of sodium bismuth titanate in the field of photocatalysis. − For example, Kurra et al reported methylene blue dye degradation using metal-doped (Ag + , Cu 2+ , and Sn 2+ ) NBT and observed that Ag + -doped NBT shows the highest photocatalytic activity due to lowering of band gap energy from 3.1 to 2.1 eV. Wang and Wang showed high photocatalytic H 2 production rate (∼325.4 μmol h –1 g –1 ) using NBT microspheres as photocatalysts under UV light irradiation.…”

Morphological and Optical changes with dopant concentration of Bi2O3 in Al2Bi2O6-δ nano-particulates

“…Nanoscience has attracted significant attention from researchers owing to the adjustable characteristics of different materials at the nanoscale level-sized materials possess peculiar and improved physical, chemical, optical, mechanical, and magnetic properties in comparison to their bulk specimen, due to their high specific surface atom and surface-to-volume(S/V) ratio [1]. Nano-substances are normally between 1to 100 nano-meters in dimensions with 1 nm and 1 billionth of a meter [2]. Metal oxides are a type of nanomaterials that is being extensively studied due to their small size, affordability, ecofriendliness, and chemical stability [3].…”