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[求助]
求助ZnO溶膠的合成
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Typically, the desired metal salt (NiCl2, Zn(NO3)2, SnCl4) was dissolved in ethanol (100 mL) and the solution was heated at 80 8C for 2 h.Tetramethylammonium hydroxide (TMAH) was added to adjust the pH value of the final suspension to about 10. Then the mixture was stirred for 1 h at room temperature. Afterwards, the mixture was exposed to high-intensity ultrasonic irradiation (6 mm diameter Ti-horn, 300 W, 20 kHz) at room temperature in ambient air for 30 min and an MO sol was obtained 我按照上述步驟制備氧化鋅溶膠,Zn(NO3)2應(yīng)該加多少,為什么要調(diào)節(jié)PH值,有沒有很懂得大牛,給解釋解釋機理唄? |
銅蟲 (小有名氣)
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