Bismuth-based semiconductors applied in photocatalytic reduction processes: fundamentals, advances and future perspectives

Abstract

Bismuth-based semiconductors (BBS) with typical layered structure and unique electronic properties are considered as an attractive visible light responsive photocatalyst. Recently, BBS have exhibited promises and rapidly developed in photoreduction...

Modulating the doping state of transition metal ions in ZnS for enhanced photocatalytic activity

“…Solar energy driven water splitting to produce hydrogen or CO 2 conversion to valuable hydrocarbon appears as an ideal approach to ameliorate the energy-environment issue. 1 Element doping is an efficient strategy to boost the performance of photocatalysts, because it can improve photo-absorption, accelerate carrier separation, and expand the photoreaction kinetics of catalysts. 2,3 Homogeneous doping usually occurs in the majority of elemental doping cases.…”

Advances in the optical and electronic properties and applications of bismuth-based semiconductor materials

“…19 WO 3 (E g = 2.4-2.8 eV) is constrained by its lower conduction band level, leading to diminished light energy conversion efficiency. 20 Therefore, in recent decades, bismuth-based materials have been explored and have gained popularity in the field of photocatalysis due to their tunable and controllable electronic and optical properties, suitable band edge position, high stability, photo-corrosion resistance, and excellent catalytic performance, 11,17,175 as illustrated in Fig. 9.…”

“…11 To eliminate excess CO 2 and reduce the greenhouse effect, the photocatalytic CO 2 reduction technology has emerged, 176 which is a green and efficient way to convert carbon dioxide into renewable hydrocarbon fuels and utilize solar energy to cycle carbon resources. 175 However, low solar energy utilization and catalytic efficiency, as well as low selectivity of CO 2 reduction products, are the main obstacles limiting the development of photocatalytic CO 2 reduction technology. 11,175 To overcome these problems, various bismuth-based photocatalysts have been developed, and significant progress has been made in the field of photocatalytic CO 2 reduction.…”

“…175 However, low solar energy utilization and catalytic efficiency, as well as low selectivity of CO 2 reduction products, are the main obstacles limiting the development of photocatalytic CO 2 reduction technology. 11,175 To overcome these problems, various bismuth-based photocatalysts have been developed, and significant progress has been made in the field of photocatalytic CO 2 reduction.…”

Polyoxometalates tailoring of frustrated Lewis pairs on Ce-doped Bi2O3 for boosting photocatalytic CO2 reduction

“…2 However, the difficulty of activating the highly stable CQO bond of CO 2 poses a significant challenge. 3 Recently, a way to effectively activate CO 2 has been provided by frustrated Lewis pairs (FLPs), which consist of a sterically hindered Lewis acid (LA) and Lewis base (LB). 4 As a result, the development of new photocatalysts with FLPs is an attractive option.…”