直接磺化聚砜在基于脱水污泥的双室微生物燃料电池中的发电效果

IF 2.6 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES International Journal of Environmental Research Pub Date : 2024-08-25 DOI:10.1007/s41742-024-00650-1
Kavita Pusphanathan, Muaz Mohd Zaini Makhtar, Hafiza Shukor, Muhammad Najib Ikmal Mohd Sabri, Nur Atiqah Abdul Rasik, Nurul Atiqah Shamsuddin, Masoom Raza Siddiqui, Riti Thapar Kapoor, Mohd Rafatullah
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引用次数: 0

摘要

在生物处理技术领域,微生物燃料电池(MFC)被认为是一项值得关注的创新,它可以同时对废水进行生物处理,并作为可再生能源加以利用。这项研究首先是合成带有磺化聚砜(SPSF)和磺化壳聚糖(SCS)的复合质子交换膜(PEM),作为 MFC 的分离器。通过将微孔 SPSF 基质与一薄层壳聚糖(CS)交联,开发出了一种复合膜。然后对该膜在采用脱水污泥的 MFC 中的适用性进行了评估。使用扫描电子显微镜(SEM)、傅立叶变换红外光谱(FTIR)、质子电导率测量、后端滴定测试和吸水研究对这种复合材料的外观和物理机械性能进行了全面检查。我们尝试通过结合磺化特性来改变表面,从而加强 PSF 和 CS 等二元聚合物之间的联系。结果,开发出了两种新型复合材料:(SPSF/CS)和(SPSF/SCS),它们是通过改变 PSF 膜的表面,然后利用非溶剂相反转技术添加壳聚糖层制成的。测量了 SPSF/CS 和 SPSF/SCS 复合材料的质子传导性,并与未改性 PSF 的质子传导性进行了对比。与未改性的 PSF(0.99 meq/g,0.009 S/cm)相比,0.5 wt% 的 SPSF/SCS-1 复合材料表现出更高的质子传导性和离子交换能力(1.7 meq/g,0.061 S/cm)。从 MFC 的性能来看,SPSF/SCS-1,0.5 wt% 膜的发电量分别为 38.57 mW/m2 和 0.449 mW/m2,而原始 PSF 的发电量为 38.57 mW/m2 和 0.449 mW/m2。这些结果生动地表明,复合 SPSF/SCS PEM 提高了双室 MFC 的生产率。
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Effectiveness of Direct Sulfonated Polysulfone in Dual Chamber Microbial Fuel Cells Based Dewatered Sludge for Power Generation

In the realm of bioprocess technology, microbial fuel cells (MFCs) are regarded as a noteworthy innovation that can simultaneously bioremediate wastewater and utilise as renewable energy applications. The investigation began with synthesizing composite proton exchange membrane (PEM) with sulfonated polysulfone (SPSF) and sulfonated chitosan (SCS) as a separator for MFCs. A composite membrane has been developed by crosslinking a microporous SPSF substrate with a thin layer of chitosan (CS). The membrane was then evaluated for its suitability in MFCs which employ dewatered sludge. The appearance and physico-mechanical properties of this composite were thoroughly examined using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), proton conductivity measurements, back-end titration tests, and water uptake studies. Attempts were made to enhance the connection between the duo polymers such as PSF and CS by providing surface changes with the incorporation of sulfonation properties. As a result, two novel types of composite materials were developed: (SPSF/CS) and (SPSF/SCS), which were made by altering a PSF membrane’s surface before adding a chitosan layer using the non-solvent phase inversion technique. The proton conductivity of SPSF/CS and SPSF/SCS composites was measured and contrasted with that of unmodified PSF. The composite, SPSF/SCS-1, 0.5 wt%, showed greater proton conductivity and ion exchange capacity (IEC) (1.7 meq/g, 0.061 S/cm) than the unaltered PSF (0.99 meq/g, 0.009 S/cm). According to the MFCs performance, the SPSF/SCS-1, 0.5 wt% membrane demonstrated a substantial electricity production compared to pristine PSF 38.57 mW/m2 and 0.449 mW/m2. These results vividly depicted that the composite SPSF/SCS PEM increases the productivity of dual-chamber MFCs.

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来源期刊
CiteScore
5.40
自引率
0.00%
发文量
104
审稿时长
1.7 months
期刊介绍: International Journal of Environmental Research is a multidisciplinary journal concerned with all aspects of environment. In pursuit of these, environmentalist disciplines are invited to contribute their knowledge and experience. International Journal of Environmental Research publishes original research papers, research notes and reviews across the broad field of environment. These include but are not limited to environmental science, environmental engineering, environmental management and planning and environmental design, urban and regional landscape design and natural disaster management. Thus high quality research papers or reviews dealing with any aspect of environment are welcomed. Papers may be theoretical, interpretative or experimental.
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