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Flake BiOBr was prepared by one-step hydrothermal method using NaBr and Bi(NO3)3•5H2O as raw materials. The structure of the samples was characterized by means of XRD, SEM, UV-VIS. The photocatalytic activity of BiOBr was studied with methylene blue as probe. The results show that BiOBr with high exposure {102} can be obtained when the hydrothermal temperature of the product is 160°C and the hydrothermal time is 24 h. Under visible light, the degradation rate of methylene blue was over 98%. When the catalyst was reused three times, the degradation rate could still reach 80%.

Abstract. Language development could be influenced by many factors and one of them, especially in today's super scientific era, would be technology. This paper shows the easy, enjoyable and effective impact of technology on English as a third language in Inner Mongolia, China around in the first decade of 21 st century by analyzing the technology-based college English learning, teaching and acquisition in some major higher education institutes based on the author's individual experience. Illustrating some relation between English and technology, this paper advocates a broader application of technology in second language related study, work and researches.

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