Dion-Jacobson {type|kind|sort|variety|form} layered perovskite niobium oxides KCa2Nb3O10 and KSr2Nb3O10 {were|had been|have been} {prepared|ready} {via|by way of|through|by means of} molten salt {method|technique|approach|strategy|system|process}, {and the|and also the|as well as the|along with the|plus the} potassium cations {were|had been|have been} exchanged by protons {using|utilizing|making use of|employing|working with|applying} nitric acid. {Different|Various|Distinct|Diverse|Unique|Distinctive} degrees of proton exchange {were|had been|have been} adjusted, {and the|and also the|as well as the|along with the|plus the} dependence of photocatalytic activity for hydrogen evolution on proton exchange was investigated. {Moreover|Furthermore|In addition|Additionally}, proton exchange {leads to|results in} {different|various|distinct|diverse|unique|distinctive} amounts of water incorporated {into the|in to the} interlayer spaces, also influencing photocatalytic {performance|overall performance|efficiency|functionality} {significantly|considerably|substantially|drastically}. Decoupling water intercalation and proton exchange, the photocatalytic activity of proton exchanged KCa2Nb3O10 and KSr2Nb3O10 {can be|may be|could be|might be|is often|is usually} revealed and tailored for maximum activity. 1269440-73-4 site Buy425380-37-6 PMID:24463635

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