Synthesis and Characterization of K-Ta Mixed Oxides for Hydrogen Generation in Photocatalysis

Table 1

Properties of unreacted Ta₂O₅ and K-T samples.

Sample	Phase composition of synthesized sample	BET surface area (m^2/g)	Mean pore diameter (nm)
Ta2O5	Ta2O5	1.34	10.08
K-500	Ta2O5/KTaO3	7.13	5.37
K-550	Ta2O5/KTaO3	6.46	6.12
K-600	Ta2O5/KTaO3	4.99	7.67
K-650	Ta2O5/KTaO3	3.82	8.88
K-700	Ta2O5/KTaO3/K2Ta4O11	3.50	8.66
K-750	KTaO3/K2Ta4O11	3.13	8.48
K-800	KTaO3/K2Ta4O11	2.95	9.32
K-850	KTaO3/K2Ta4O11	2.66	9.56
K-900	KTaO3/K2Ta4O11	2.31	9.76