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| Ag2S/rGO纳米复合材料的细菌还原制备及光电性能研究 |
| Study on bacterial reduction preparation and photoelectric properties of Ag2S/rGO nanocomposites |
| Received:February 26, 2021 |
| DOI： |
| 中文关键词: 纳米复合材料 生物合成 革兰氏阴性菌 机理 表征 光电化学性能 |
| 英文关键词: nanocomposites biosynthesis gram-negative bacteria mechanism characterization photo- electrochemical test |
| 基金项目:国家自然科学基金项目(51278001)；安徽省科技重大专项(202003a0702014) |
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| 中文摘要: |
| 以一种革兰氏阴性菌(S. oneidensis MR-1)为生物还原剂，Na2S2O3为电子受体，在氧化石墨烯(GO)表面原位合成了Ag2S/rGO纳米复合材料，对其进行了表征和光电性能测试。结果表明，细菌还原得到粒径约10 nm的Ag2S纳米粒子，均匀分布在还原氧化石墨烯(rGO)上；光电性能测试表明，与纯Ag2S相比，Ag2S/rGO纳米复合材料电极的光电流密度约提高了3倍，光生电子-空穴对的分离效率更高，表现出更加优异的光电化学性能。 |
| 英文摘要: |
| Ag2S/rGO nanocomposites were synthesized in situ on the surface of GO using a gram-negative bacterium (S. oneidensis MR-1) as a biological reducing agent and Na2S2O3 as an electron acceptor.The results showed that Ag2S nanoparticles with a particle size of about 10 nm were uniformly distributed on reduced graphene oxide (rGO) surface.The photoelectric performance test showed that the photoelectric current density of the Ag2S/rGO nanocomposites was about 3 times higher than that of the pure Ag2S. The separation efficiency of the photoelectron-hole pair was higher than that of Ag2S, and its photoelectric chemical performance was more excellent. |
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