比较铜和铝掺杂钴铁酸盐纳米粒子对提高生物制氢的作用。
Comparison of copper and aluminum doped cobalt ferrate nanoparticles for improving biohydrogen production.
机构信息
College of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, PR China.
College of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, PR China; State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, PR China.
出版信息
Bioresour Technol. 2022 Jan;343:126078. doi: 10.1016/j.biortech.2021.126078. Epub 2021 Oct 1.
Two various materials, copper and aluminum doped cobalt ferrite nanoparticles (NPs) were fabricated for investigating their effects of addition amounts on hydrogen (H) synthesis and process stability. CoCuFeONPs enhanced H production more than CoAlFeO NPs under same condition. The highest H yield of 212.25 ml/g glucose was found at optimal dosage of 300 mg/L CoCuFeO NPs, revealing the increases of 43.17% and 6.67% compared with the control without NPs and 300 mg/L CoAlFeO NPs groups, respectively. NPs level of more than 400 mg/L inhibited H generation. Further investigations illustrated that CoCuFeO NPs were mainly distributed on extracellular polymer substance while CoAlFeO NPs were mostly enriched on cell membrane, which facilitated electron transfer behavior. Community structure composition demonstrated that CoCuFeO and CoAlFeO separately caused a 9.67% and 9.03% increase in Clostridium sensu stricto 1 compared with the control reactor without NPs exposure.
两种不同的材料，铜和铝掺杂的钴铁氧体纳米粒子（NPs）被制备出来，以研究它们的添加量对氢气（H）合成和过程稳定性的影响。在相同条件下，CoCuFeONPs 比 CoAlFeO NPs 更能促进 H 的生成。在最佳剂量为 300mg/L CoCuFeO NPs 时，发现 H 的最高产率为 212.25ml/g 葡萄糖，与无 NPs 和 300mg/L CoAlFeO NPs 组的对照相比，分别增加了 43.17%和 6.67%。NPs 水平高于 400mg/L 会抑制 H 的生成。进一步的研究表明，CoCuFeO NPs 主要分布在细胞外聚合物物质上，而 CoAlFeO NPs 则主要富集在细胞膜上，这有利于电子转移行为。群落结构组成表明，与无 NPs 暴露的对照反应器相比，CoCuFeO 和 CoAlFeO 分别导致严格梭菌 sensu stricto 1 增加了 9.67%和 9.03%。
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