| 惠爱平,马建中,刘俊莉.微波辅助水热法合成的可见光响应型Sm掺杂ZnO微晶的光催化性能和抗菌活性[J].材料导报,2017,31(2):13-19 |
| 微波辅助水热法合成的可见光响应型Sm掺杂ZnO微晶的光催化性能和抗菌活性 |
| Photocatalytic Performance and Antimicrobial Activity of Microwave-assisted Hydrothermally Synthesized, Visible-light Responsive Sm-doped ZnO Crystallites |
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| DOI：10.11896/j.issn.1005-023X.2017.02.003 |
| 中文关键词: Sm掺杂 ZnO 微晶 光催化性能 抗菌活性 |
| 英文关键词: Sm doping, ZnO, crystallite, photocatalytic performance, antimicrobial activity |
| 基金项目:国家自然科学基金(21376145)；陕西省自然科学基础研究计划项目(2014JQ6209) |
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| 中文摘要: |
| 采用六水合硝酸锌为锌源、六水合硝酸钐为掺杂剂、十二烷基硫酸钠为诱导剂、无水乙醇和水为混合溶剂,利用微波辅助水热法制备了Sm掺杂ZnO微晶。将Sm掺杂到ZnO晶体结构中,不仅改变ZnO的晶体结构,而且Sm掺杂对ZnO的形貌有明显的影响。考察不同Sm掺杂ZnO样品对罗丹明B的降解性能和对白色念珠菌和霉菌的抗菌活性,结果表明,/物质的量比为1%的Sm掺杂ZnO微晶表现出最好的光催化性能和抗菌活性。在模拟可见光下(500 W氙灯)照射160 min后光催化降解罗丹明B的脱色率为75.9%,TOC去除率为66.3%。由菌落计数结果可知,其对白色念珠菌和黄曲霉的抑菌率分别为81%和77%。 |
| 英文摘要: |
| Using Zn(NO3)2·6H2O as zinc source, Sm(NO3)3·6H2O as dopant, sodium dodecyl sulfate as revulsant, absolute alcohol and water as mixed solvent, a series of samarium-doped ZnO crystallites varied in Sm content were successfully prepared by microwave-assisted hydrothermal method. Doping Sm3+ into ZnO lattice changesits crystal structure and also has an obvious effect on morphology of ZnO crystallites. The photocatalytic performances towards rhodamine B, antimicrobial activity against candida albicans and aspergillusflavus of doped ZnO crystallites were investigated in detail. The results indicated that /=1%crytallite has better photocatalytic performance and antimicrobial activity. Under a simulated visible light irradiation (500 W Xenon lamp), the decolorization rate of rhodamine B was 75.9% after 160 min, TOC removal rate was 66.3%. Colony count result showed that the inhibition rates of 1% samarium-doped ZnO crytallite against candida albicans and aspergillusflavus rate were 81% and 77%, respectively. |
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