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TiO2 sol was prepared at room temperature in the following way: 8.68 ml of tetrabutylorthotitanate was dissolved in the mixture solution of 35 ml of ethanol and 2.82 ml diethanolamine. After magnetic stirring for 2 h, the obtained solution was hydrolyzed by the addition of a mixture of 0.45 ml deionized water and 4.5 ml ethanol dropwise under magnetic stirring. After stirring for 2 h, the TiO2 sol was kept in a brown glass bottle to age for 24 h at room temperature. °´ÕÕÉÏÃæÎÄÏ×Öеķ½·¨£¬Ö»ÊǰѶþÒÒ´¼°·»»³ÉÁËÈýÒÒ´¼°·£¬ÆäËû²½Öè¶¼Ò»Ñù£¬ÎªÉ¶24Сʱºó»¹Êǵ»ÆÉ«µÄÈÜÒº£¬Ã»ÓÐÒ»µãÒª±ä³ÉÈܽºµÄ¸Ð¾õ£¬ÊÇÎÒÄÄÀïŪ´íÁË£¬»¹ÊÇÎÄÏ×ÖÐÊ¡ÂÔÁËÄÄЩ¹Ø¼ü²½Ö裿 Çó´ó¼ÒÅúÆÀÖ¸Õý£¨ÎÒ×¼±¸°ÑÄÉÃ×Á£×ÓÈܽºÌí¼Óµ½µç¶ÆÒºÖÐÖÆ±¸ÄÉÃ׸´ºÏ¶Æ²ã£¬Èç¹û´ó¼ÒÓÐÆäËûºÃµÄ·½·¨Ò²¿ÉÒÔÌá³ö£¬±ØÓÐÖØÐ» £¬ÎҵĽð±Ò»¹ÊDz»ÉÙµÄŶ£¬¹þ¹þ £© |
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