通过使用热带微藻减少氧化石墨烯的绿色合成及其在生物光伏设备中的应用
Jing-Ye Tee1,2, Fong-Lee Ng1,3, Fiona Seh-Lin Keng1,4
1Institute of Ocean and Earth Sciences (IOES), Universiti Malaya, Kuala Lumpur 50603, Malaysia.
iScience
|April 15, 2024
概括
研究人员开发了一种绿色方法,使用微藻制造减少的氧化石墨烯 (rGO). 这种rGO阳极显著提高了藻类生物光伏 (BPV) 设备中的生物电力生产.
科学领域:
- 生物技术是生物技术.
- 材料科学 材料科学 材料科学
- 可再生能源可再生能源是可再生能源.
背景情况:
- 藻类生物光伏 (BPV) 的商业化需要高效的阳极材料.
- 开发具有成本效益和导电性的阳极对于BPV技术至关重要.
- 目前的阳极材料在性能和环境影响方面存在限制.
研究的目的:
- 开发一种环保方法,利用微藻生产减少的氧化石墨烯 (rGO).
- 为了评估rGO涂层碳纸 (rGO-CP) 作为BPV设备中的阳极的性能.
- 研究微藻衍生rGO对生物发电产生的影响.
主要方法:
- 使用的缩的 *Chlorella* sp. 作为氧化石墨烯的还原剂的UMACC 313悬浮剂.
- 通过这种对环境无害的方法制备了rGO,并涂在碳纸 (CP) 上.
- 测试了rGO-CP作为BPV设备中的阳极,使用不同的微藻菌株 (*Chlorella* sp. 在UMACC 258和*Synechococcus* sp.中使用. 在UMACC 371中).
主要成果:
- 对于*Chlorella* sp. 的最大功率密度增加了950%. 对于Synechococcus sp.来说,UMACC 258 (0.210 mW m-2) 和781%的球菌. 与赤裸的CP相比,UMACC 371 (0.555 mW m-2) 与赤裸的CP相比.
- 性能提升归因于微藻对rGO阳极的附着性改善和电导率增加.
- 在rGO中有效地去除氧功能组,有助于提高导电性.
结论:
- 来自微藻的减少氧化石墨烯是提高BPV阳极性能的一个有希望的材料.
- 这种绿色合成方法提供了一种可持续的方法来生产用于生物能源的先进材料.
- 这项研究表明,改善藻类BPV效率和生物电力输出的可行途径.
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