化学专业英语翻译以Na2WO4.2H2O和Zn(NO3)2.6H2O为原料,采用水热法制备出ZnWO4纳米晶催化剂.以曙

化学专业英语翻译
以Na2WO4.2H2O和Zn(NO3)2.6H2O为原料,采用水热法制备出ZnWO4纳米晶催化剂.以曙红B为目标降解物,研究了ZnWO4催化剂的光催化性能,探讨了水热温度、水热时间和水热溶液pH值对ZnWO4催化剂的结晶形态及光催化活性的影响规律,结果表明:在酸性条件下制备的ZnWO4为片状结构,链状分布,而在碱性条件下为棒状结构.在180℃,24 h的制备条件下,ZnWO4催化剂显示出最高的光催化活性.水热溶液pH=5和pH=8时制得的催化剂在2 h内对5 mg/L的曙红B溶液的脱色率分别达到86%和95%.制备过程中溶液的pH值,催化剂的晶态和比表面积是影响催化剂活性的重要因素.
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andijiaren 幼苗

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To Na2WO4. 2H2O and Zn (NO3) 2.6 H2O as raw material, adopting hydrothermal legal system for the ZnWO4 nanocrystalline catalysts. To Shu red B as the goal, studied degradants ZnWO4 catalyst photocatalytic performance, discusses the heat and water temperature, hydrothermal time and hydrothermal solution pH value of crystal morphology and ZnWO4 catalyst photocatalytic activity of the influence law, the result shows: in acidic condition for the preparation of ZnWO4 patchy distribution structure, chain in alkaline conditions for rod structure. In 180 ℃, 24 h preparation conditions, ZnWO4 catalyst shows the highest photocatalytic activity. Hydrothermal solution pH = 5 and pH = 8 preparation of catalysts in 2 to 5 mg/h L within the Shu red B solution determined.the decolored rate achieved respectively 86% and 95%. During the preparation of solution of pH value, the catalyst of amorphous and specific surface area is the effect of catalyst activeness of important factor.

1年前

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