Abstract

Protection of the environment and application of “green chemistry” methods to industrial technologies are the most relevant problems of modern fundamental and applied science [1,2]. In particular, photocatalytic reactions such as decomposition of pollutants in water and air receive great attention [3]. It is known that some metal titanates have interesting photocatalytic properties. Thus photoactivity of strontium titanate in various processes of wastes neutralization was shown in works [4-6]. The photocatalytic properties of barium titanate (BT) used as traditional electroceramic material (for example, ferroelectric) and their relationships with dielectric parameters were described in papers [7-11]. In this work we present the properties of BT prepared from different raw materials by mechanochemical synthesis which permits to obtain BT powders with high specific surface area in mild conditions. It is known that the mechnochemical

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