2D Titanium/Niobium Metal Oxide‐Based Materials for Photocatalytic Application

Abstract

2D titanium/niobium (Ti/Nb) metal oxide (TNMO)‐based compounds have attracted increasing attention due to the fact that the contained octahedral structure of Ti4+‐based TiO6 and/or Nb5+‐based NbO6 can be facilely modified so as to achieve an enhanced photocatalytic performance for environmental remediation and energy conversion. Herein, the different synthetic methods for the construction of various 2D TNMO‐based photocatalysts are presented. Many basic principles, such as nanostructure design, doping, and construction of heterojunctions, are introduced to enhance the photocatalytic performance of 2D TNMO compounds. The relationship between the photocatalytic performance and regulation methods is also described. Furthermore, the photocatalytic applications of 2D TNMO‐based materials are discussed, including H2 generation, removal of pollutants, CO2 reduction, nitrogen photofixation, disinfection, and organic synthesis. Finally, the challenges and future development of 2D TNMO‐based materials are also discussed.

Relationship between secondary phase and photocatalytic activity in titanium‐doped bismuth ferrite nanocrystals

“…As shown in Fig. 8, BiFe 0.90 Ti 0.10 O 3 nanocrystals showed the best degrading efficiency, followed by BiFe 0.85 Ti 0.15 O 3 , BiFe 0.80 Ti 0.20 O 3 , BiFe 0.95 Ti 0.05 O 3 , and BiFeO 3 , while RhB alone showed no degradation due to their photocatalytic stability [34–36]. It seems that the formation of the Bi 2 Fe 4 O 9 phase could enhance the photocatalytic activity because BiFe 0.90 Ti 0.10 O 3 nanocrystals showed the most Bi 2 Fe 4 O 9 phase and the highest photocatalytic activity.…”

0D/2D CsPbBr3 Nanocrystal/BiOCl Nanoplate Heterostructure with Enhanced Photocatalytic Performance

“…[1] In the photocatalytic system, the most core issue is to design and exploit efficient photocatalytic materials. At present, a variety of semiconductor materials have been developed as efficient photocatalysts, such as metal oxides, [2,3] metal sulfides, [4,5] and non-metal organic photocatalytic materials. [6,7] BiOCl is constantly noticed due to its good photo electric, facile preparation, and high photocorrosion resistance…”

Ionic Liquid-Assisted Synthesis of Ag3PO4 Spheres for Boosting Photodegradation Activity under Visible Light

“…Environmental photocatalysis is a low-energy, green, and sustainable advanced oxidation technology. Under light irradiation, semiconductor materials can be excited to generate electron-hole pairs and then produce oxygen-containing free radical species with a strong oxidizing ability for completely mineralizing organic pollutants [1][2][3]. As a representatively traditional photocatalyst, titanium dioxide (TiO 2 ) shows the intrinsic characteristics of narrow light response range, high charge carrier recombination rate, and low quantum efficiency, which greatly limits its development and practical application in photocatalytic field [4].…”