| 水油两相体系生物还原-化学沉淀耦合反应制备纳米二硫化锡 | |
| Preparation of Nano Sized SnS2 by Coupling Reaction of Biological Reduction and Chemical Precipitation in Water-Oil Two-Phase System | |
| 摘要: 针对Sn4+易于水解而难以在水相稳定存在的不利条件，尝试了在水油两相体系中应用生物转化-化学沉淀耦合反应工艺制备SnS2纳米材料。研究了水油两相体系制备SnS2的优化条件，并借助XRD、SEM、EDS表征了制备材料的结构、形貌和物相。研究表明，生物水相pH值7、水油两相反应温度35 ℃，油相Sn4+与水相SO42-之物质的量浓度比1∶2的条件下有利于SnS2的生成。制备的SnS2为纳米片花瓣，纳米片平均厚度约为30 nm，花状微晶直径约1~5 μm，纯度高，无杂质。 | |
| 关键词: SnS2 水油两相体系 生物还原 纳米微粒 | |
| 基金项目: | |
| Abstract: In order to avoid from the hydrolysis of Sn4+ in water phase in the synthesis of SnS2, the water-oil two-phase system was used to prepare the nano SnS2 by the Coupling Reaction of Biological Reduction and Chemical Precipitation (CRBRCP) process. The optimum conditions for preparation of SnS2 were studied, and the product was characterized by XRD, SEM, EDS. The results show that pH value of 7.0 for medium solution, 35 ℃ of culture temperature and molar ratio of 1∶2 between Sn4+ in oil phase and SO42- in medium were beneficial for SnS2 preparation. The prepared SnS2 using the water-oil two-phase system was petal shaped particles with diameter of 1~5 μm composed of nano-sheets with a thickness of about 30 nm. | |
| Keywords: SnS2 nano particles biological reduction water-oil two-phase system | |
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| 马兴泰,辛宝平,吴 莹,陈 岗,吴 锋,陈 实.水油两相体系生物还原-化学沉淀耦合反应制备纳米二硫化锡[J].无机化学学报,2011,27(4):687-691. | |
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