Nanoparticulate precursor route to fine particles of TaON and ZrO2–TaON solid solution and their photocatalytic activity for hydrogen evolution under visible light

Development of Novel Photocatalyst and Cocatalyst Materials for Water Splitting under Visible Light

“…As a result, the as-obtained TaON did not show an appreciable increase in photocatalytic activity, despite a relatively small particle size (5080 nm). 97 Although the calcination of solid photocatalysts at elevated temperatures after preparation has been demonstrated to be an effective approach for reducing the density of defects while maintaining the composition of the material, 98100 such post-calcination seemed to be disadvantageous for TaON due to its relatively low thermal stability. In fact, post-calcination of TaON under O 2 or N 2 results in a decrease in activity.…”

Quantification of photocatalytic hydrogen evolution

“…15 In general, a comparison of published results regarding photocatalytic efficiency of many photocatalysts for H 2 or O 2 evolution is often impossible due to completely different reaction conditions or test reactors. To perform photocatalytic hydrogen evolution reactions with UV or visible light irradiation using homogenous or heterogeneous photocatalysts, three types of photo reactors are commonly used: reactors with (a) inner irradiation, 16 (b) top irradiation, 17,18 and (c) side irradiation 19 ( Fig. 1).…”

Photocatalytic water splitting on protonated form of layered perovskites K0.5La0.5Bi2M2O9 (M = Ta; Nb) by ion-exchange

“…The layered compound K 0.5 La 0.5 Bi 2 M 2 O 9 (M ¼ Ta; Nb) were prepared by polymerized complex method as follows [16,17]. 60 mL methanol was used as a solvent to dissolve 0.006 mol of TaCl …”