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2Â¥2013-05-31 11:33:05
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3Â¥2013-05-31 21:45:56
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4Â¥2013-06-01 07:18:32
wbcui
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5Â¥2013-06-01 12:29:57
wbcui
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°®ÓëÓêÏÂ: ½ð±Ò+1 2013-06-01 16:08:28
°®ÓëÓêÏÂ: ½ð±Ò+1 2013-06-01 16:08:28
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ʱ¼ä²»ÊǺܳäÔ££¬ÏÈÒ»¾äÒ»¾äµÄ·£¬Â¥Ö÷¾õµÃÓÐÓþÍÓ㺠In present paper, the effects of synthesis and reaction conditions on the physicochemeical properties and photo-activities of catalysts were investigated and discussed. some discussions were also paid to how to improve the hydrogen yields by photochemical water splitting. The photo-activity conditions were optimized to produce the nanosized photocatalyst with high activities. |
6Â¥2013-06-01 12:46:45
wbcui
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ÀûÓÃË®ÈÈ·¨Í¨¹ý¸Ä±äpHÖµ¡¢¸ºÔØÁ¿ÖƱ¸Á˲»Í¬ÏµÁеĹâ´ß»¯¼ÁÓÖ½øÐиºÔØK2La2¬Ti3O10ÖÆ±¸³öÁËZnIn2S4/ K2La2¬Ti3O10¡£ several batchs of photocatalysts were prepared by hydro-thermal method with variant PH values and ¸ºÔØÁ¿¡£ZnIn2S4/ K2La2¬Ti3O10 was also prepared by using K2La2¬Ti3O10. ÀûÓÃXÉäÏßÑÜÉ䡢ɨÃèµç¾µ¡¢×ÏÍâ-¿É¼ûÂþ·´ÉäµÈ¶Ô´ß»¯¼Á½øÐÐÁ˱íÕ÷£¬¹Û²ì·ÖÎö´ß»¯¼ÁµÄ±íÃæ¼°ÌåÏ໯ѧ×é³É¡¢¾§Ìå½á¹¹¡¢Á£¾¶¼°¿×¾¶·Ö²¼¡¢±È±íÃæ¡¢´øÏ¶ÄÜ¡¢Îü¹âÐÔµÈÎïÀíÓ뻯ѧÐÔÖÊ¡£ photocatalysts are chatercterized by x-ray diffraction, scanning microscopy and UV-vis diffuse reflections. surface morphologies, chemical compositions, crystallographic structure, partical sizes, porous size distributions(? ¿×¾¶·Ö²¼), specific surface, bond gap energy, and Optical absorption properties were also investigated. |
7Â¥2013-06-01 13:03:58
wbcui
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¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
С³æ¿ìÅÜ: ½ð±Ò+50, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2013-06-02 08:04:59
С³æ¿ìÅÜ: ½ð±Ò+50, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2013-06-02 08:04:59
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ͨ¹ý¶ÔÊý¾ÝºÍͼÑù½øÐзÖÎö¡¢×ܽᣬ½á¹û±íÃ÷£ºÖƱ¸³öµÄZnIn2S4/ K2La2¬Ti3O10´ß»¯¼ÁµÄÁ£¾¶³É¹¦µÄ¿ØÖÆÔÚÁËÄÉÃ×¼¶£¬¾ßÓнϺõÄÎȶ¨ÐÔ£»Ëæ×ÅpHµÄÔö´ó£¬´ß»¯»îÐÔÖð½¥Ï½µ£»Ëæ×ŸºÔØÁ¿µÄÔö´ó£¬´ß»¯»îÐÔÏÈÔö´óºó¼õС£»Ë®ÈÈ·¨ÔÚ160oC¡¢pH=1ºÍ25%¸ºÔØÁ¿ÏÂËùµÃµÄ´ß»¯¼Á±íÏÖ³öÎȶ¨ºÍ½Ï¸ßµÄ´ß»¯»îÐÔ¡£ The results indicates that the nanosized ZnIn2S4/ K2La2¬Ti3O10 catalysts were synthesized with good stability. With increased PH value, the photocatalyst activity were reduced. with more amount of ¸ºÔØÁ¿, the photocatalyst activity was increased at beginning and then decreased. by hydrothermal method, the optimized stablity and photocatalyst activity were achieved at 160oC, PH=1 and 25% ¸ºÔØÁ¿¡£ |
8Â¥2013-06-01 13:52:02














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