Mixed Metal Sulfides for the Application of Photocatalytic Energy Conversion

Abstract

Benefiting from suitable band energy and outstanding redox reversibility, metal sulfides have drawn extensive research attention in photocatalysis, especially in energy conversion. This review overviews the progress of metal sulfide semiconductors in the recent five years for photocatalytic energy conversion. First, the modifications on morphologies and structures of metal sulfides are introduced. Then, the applications of metal sulfides in photocatalytic energy conversion are outlined, which include H 2 production, CO 2 reduction, and N 2 fixation. Especially, the correlations between modification and photocatalytic activity are elaborated. Finally, the challenges and perspectives of metal sulfides in energy conversion are provided.

2022 Pioneers in Energy Research: Jinhua Ye

“…reviewed the recent research progress and perspectives on porphyrin-based porous photocatalysts in CO 2 photoreduction . In Yu’s review, the application progress of metal sulfide semiconductors in photocatalytic energy conversion, including H 2 production, CO 2 reduction, and N 2 fixation, are discussed . Yu and co-workers outlined the conventional and emerging strategies for improving the performance of photocatalytic N 2 fixation and prospects for the existing challenges and future opportunities .…”

“…32 In Yu's review, the application progress of metal sulfide semiconductors in photocatalytic energy conversion, including H 2 production, CO 2 reduction, and N 2 fixation, are discussed. 33 Yu and co-workers outlined the conventional and emerging strategies for improving the performance of photocatalytic N 2 fixation and prospects for the existing challenges and future opportunities. 34 Jiang's group summarized the reaction mechanisms of photo-and electrocatalytic N 2 fixation and outlined the common methodologies of generating more active sites of photo-and electrocatalytic N 2 fixation.…”

Research Progress and Perspectives on Active Sites of Photo- and Electrocatalytic Nitrogen Reduction

“…Accordingly, it is crucial to explore green, economical, and energy-saving techniques for ammonia synthesis under ambient conditions . Photocatalysis (PC) and electrocatalysis (EC) are emerging as promising strategies and have been rapidly developed over the past few years due to their low-cost and abundant raw materials (air and water) as well as mild reaction conditions. − …”

Construction of a binary S-scheme S-g-C3N4/Co-ZF heterojunction with enhanced spatial charge separation for sunlight-driven photocatalytic performance

“…[21][22][23][24][25][26] Light absorption, photocatalytic redox interactions with reactive radicals, and the separation and transport of the photogenerated electron-hole pair are generally the three key components of the photocatalytic process. [27][28][29][30] Due to its distinctive qualities, such as environmental friendliness, affordability, a moderate working temperature, and high oxidation power, semiconductor-based photocatalysts have been extensively used to remove environmental contaminants from water. [31][32][33] It is a drawback because TiO 2 has a signicant bandgap (3.22 eV), which implies that only 4% of the solar spectrum is captured and the rest is lost.…”

“…21–26 Light absorption, photocatalytic redox interactions with reactive radicals, and the separation and transport of the photogenerated electron–hole pair are generally the three key components of the photocatalytic process. 27–30…”