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以表面改性的煤矸石粉、硝酸铋和碘化钾为原料,采用超声法制备了BiOI/煤矸石复合粉体和Bi5 O7I/Bi4O5I2/煤矸石复合粉体,利用XRD、SEM、EDS对所制得的样品进行了表征,并以模拟太阳光为光源,罗丹明B为目标降解物,对其光催化活性进行了研究.结果表明:BiOI/煤矸石复合粉体和Bi5O7I/Bi4O5I2/煤矸石复合粉体均表现出较高的可见光光催化降解能力,并且Bi5O7I/Bi4O5I2/煤矸石复合粉体的光催化活性要大于BiOI/煤矸石复合粉体的光催化活性.Bi5O7I/Bi4O5I2/煤矸石复合粉体三次循环利用后光催化2h对罗丹明B的降解率仍可达到88.9%,可重复使用.

参考文献

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[3] 毛茂乔;单国强;夏佳慧;杜伟;王彤旭;董思宇;祝凌燕.水热法合成BiOI及在模拟太阳光下对双酚A的降解[J].科学通报,2014(31):3072-3079.
[4] 李燕;孙道胜;王爱国;张峰君.CdS/煤矸石复合粉的声化学法制备及光催化性能[J].人工晶体学报,2015(3):717-721.
[5] Yang, Jun;Xu, Longjun;Liu, Chenglun;Xie, Taiping.Preparation and photocatalytic activity of porous Bi5O7I nanosheets[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2014Nov.15(Nov.15):265-271.
[6] Xi Zhang;Lizhi Zhang.Electronic and Band Structure Tuning of Ternary Semiconductor Photocatalysts by Self Doping: The Case of BiOI[J].The journal of physical chemistry, C. Nanomaterials and interfaces,201042(42):18198-18206.
[7] 朱俊杰.超声化学法合成金属硫族半导体纳米材料[J].微纳电子技术,2002(12):21-27.
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