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中文摘要：
以Fe（NO_3）_3·9H_2O为原料,聚乙烯吡咯烷酮作为表面活性剂,NaOH、Na_2CO_3、CH_3COONa为形貌改变剂,采用水热法制备出不同形貌的α-Fe_2O_3,并研究了不同因素对产物形貌的影响。利用SEM、EDS、XRD、FTIR等手段对其物相及微观形貌进行表征,并探讨其生长机理。通过光催化降解酸性大红模拟废水考察不同形貌α-Fe_2O_3的光催化性能,实验结果表明,类桑葚状α-Fe_2O_3对酸性大红模拟废水的降解效果最好,降解率高达99.01%,具有潜在的光催化应用前景。
英文摘要：
α-Fe_2O_3 with different morphologies were fabricated through hydrothermal method using Fe（NO_3）_3·9H_2O as raw material,PVP as surfactant,NaOH,Na_2CO_3,CH_3COONa as morphology change agent,and the effects of different factors on the morphology of products were studied.The samples′phase compositions and morphologies were characterized by SEM,EDS,XRD,FT-IR,and the growth mechanism was discussed.The catalytic properties ofα-Fe_2O_3 with different morphologies were studied by using acid scarlet as simulated contaminant.The results showed that mulberry-likeα-Fe_2O_3 has the best catalytic performance for acid scarlet solution with a degradation rate of 99.01%,which inferred a potential photocatalytic application.
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