The K₂Ti_6-xZr_xO₁₃ (x = 0–1) solid solution was prepared by the traditional solid-state synthesis method. The X-Ray diffraction patterns presented a proportional increase in the cell volume and crystal lattice distortion according to the increment of the Zr⁴⁺ species concentration in the reactant mixture. The morphological characterization showed a decrease in particle size average as a result of the zirconium presence due to crystal distortion. The photocatalytic performance was evaluated in the hydrogen evolution reaction in the presence of methanol. In this context, the K₂Ti₅ZrO₁₃ solid solution exhibited the highest performance (72 μmolg⁻¹ h⁻¹) due to the higher presence of defects such as oxygen vacancies because of the Zr incorporation into the crystalline structure. In this context, these anionic defects can act as electron traps in bulk material and reduce recombination of charges; meanwhile, oxygen vacancies in surface create reactive Ti³⁺ ions, where the reactions of interest take place.

K ₂ Ti _6-x Zr _x O ₁₃（x = 0-1）固溶体是通过传统的固态合成方法制备的。X射线衍射图表明，随着反应混合物中Zr ⁴⁺物种浓度的增加，晶胞体积和晶格畸变成比例增加。形态表征显示由于晶体畸变导致锆的存在，平均粒径减小。在甲醇存在下的析氢反应中评价了光催化性能。在这种情况下，K ₂ Ti ₅ ZrO ₁₃固溶体表现出最高的性能（72μmolg ^-1  h ^-1），这是因为由于Zr掺入晶体结构中而导致的缺陷（例如氧空位）的存在更高。在这种情况下，这些阴离子缺陷可以充当块状材料中的电子陷阱，并减少电荷的复合。同时，表面的氧空位会产生反应性Ti ³⁺离子，并在该处发生反应。