Sadegh Aghapour Aktij, Mostafa Dadashi Firouzjaei, Mohsen Pilevar, Asad Asad, Ahmad Rahimpour, Mark Elliott, João B. P. Soares and Mohtada Sadrzadeh
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引用次数: 0
摘要
本研究探讨了新型共聚酰胺（Co-PA）膜在缓压渗透（PRO）过程中的应用。采用间苯二胺（MPD）和哌嗪（PIP）的混合物与三甲酰氯（TMC）缩聚反应合成了Co-PA膜。利用衰减全反射-傅里叶变换红外（ATR-FTIR）和x射线光电子能谱（XPS）进行表征，证实了膜的化学修饰，而原子力显微镜（AFM）则显示了PIP掺入后表面粗糙度的增加。结果表明，与原始TFC膜相比，加入1.5 wt%的PIP显著提高了PRO性能，实现了10.22 W m−2的功率密度，水通量增加了41.5%。此外，XPS分析表明，交联程度增加，减少了36.7%的反向盐通量。对PRO系统进行了生命周期评估，以评估该技术对开发膜的环境影响。结果证实了这种新型膜合成方法的环境效益，表明了累积能源需求（CED）的减少和向更可持续能源的转变。这项研究强调了Co-PA膜革命性的PRO技术的潜力，为能源生产和水处理提供可持续的解决方案。这些发现对PRO的环境影响提供了有价值的见解，这对于开发可持续的PRO系统至关重要。
Enhancing sustainable energy production through co-polyamide membranes for improved pressure-retarded osmosis performance and environmental impact: synthesis and life cycle analysis†
This study investigates the application of innovative co-polyamide (Co-PA) membranes in the pressure-retarded osmosis (PRO) process. The Co-PA membranes were synthesized via a polycondensation reaction of a mixture of m-phenylenediamine (MPD) and piperazine (PIP) with trimesoyl chloride (TMC). Characterization using attenuated total reflectance-Fourier transform infrared (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS) confirmed chemical modifications in the membranes, while Atomic Force Microscopy (AFM) demonstrated increased surface roughness with PIP incorporation. Results showed that incorporating 1.5 wt% PIP significantly improved PRO performance, achieving a remarkable power density of 10.22 W m−2 and a 41.5% increase in water flux compared to the pristine TFC membrane. Additionally, XPS analysis demonstrated an increase in the degree of crosslinking, reducing reverse salt flux by 36.7%. A life cycle assessment of PRO systems was conducted to evaluate the environmental impact of the technology with developed membranes. The results confirm the environmental benefits of this novel membrane synthesis approach, indicating a reduction in cumulative energy demand (CED) and a shift towards more sustainable energy sources. This research highlights the potential of Co-PA membranes to revolutionize PRO technology, offering sustainable solutions for energy generation and water treatment. The findings contribute valuable insights into the environmental implications of PRO, which are essential for developing sustainable PRO systems.
期刊介绍：
Green Chemistry is a journal that provides a unique forum for the publication of innovative research on the development of alternative green and sustainable technologies. The scope of Green Chemistry is based on the definition proposed by Anastas and Warner (Green Chemistry: Theory and Practice, P T Anastas and J C Warner, Oxford University Press, Oxford, 1998), which defines green chemistry as the utilisation of a set of principles that reduces or eliminates the use or generation of hazardous substances in the design, manufacture and application of chemical products. Green Chemistry aims to reduce the environmental impact of the chemical enterprise by developing a technology base that is inherently non-toxic to living things and the environment. The journal welcomes submissions on all aspects of research relating to this endeavor and publishes original and significant cutting-edge research that is likely to be of wide general appeal. For a work to be published, it must present a significant advance in green chemistry, including a comparison with existing methods and a demonstration of advantages over those methods.
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