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quzhaojuan銀蟲 (小有名氣)
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[交流]
高手幫忙分析下:這個(gè)氮摻雜的二氧化鈦的制備加硫化鈉的作用是什么 已有1人參與
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看了一篇文獻(xiàn)上制備N-doped TiO2 TiCl3加Na2S ,再加氨水沉淀反應(yīng)為什么就會得到 N-doped TiO2 ,Na2S的作用是什么 原文的實(shí)驗(yàn)部分是這樣寫的 For the typical synthesis of the N-doped TiO2 powders, 50 mL of 15% titanium trichloride(48.6 mmol) was mixed with 50 mL of Na2S solution (51.2 mmol). The pH of this acidic solution was adjusted to 8.5 by slow addition of diluted NH3 solution. The precipitate formed at this pH was continuously stirred for 4 h. The precipitate was filtered and washed with double distilled water until the filtrate was free from chloride and sulfide ions. The oxide was calcined at different temperatures, viz., 400, 500, and 600 °C, for 4 h in air. Pure TiO2 was also prepared by a similar procedure without the addition of Na2S solution. |
木蟲 (小有名氣)
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