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- Dziejarski, Bartosz, 1995, et al.
(författare)
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CO 2 capture materials: a review of current trends and future challenges
- 2023
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Ingår i: Materials Today Sustainability. - 2589-2347. ; 24
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Forskningsöversikt (refereegranskat)abstract
- Over the last decade, CO2 adsorption technology has quickly gained popularity and is now widely applied in global CCUS projects due to playing an important role in achieving net-zero emissions by 2050. As a result, novel materials, or post-modification methods of those already available have been successively reported to enhance the efficiency of CO2 capture from flue gases. This paper discusses a systematic understanding of fundamental aspects of current research trends in terms of developing selected solid CO2 adsorbent, with a particular emphasis on the upcoming challenges. The candidates are reviewed considering the practical drawbacks of imposed by industrial scale and economics, including carbon-based materials, metal-organic frameworks (MOFs), polymers, zeolites, silica, alumina, metal oxides, amine-based adsorbents, and other composite porous materials. Sustainable sorbents derived from biomass and industrial residues are also studied due to the high need for cost-effective raw materials and their crucial role in the circular economy. Lastly, a techno-economic analysis (TEA) is included to provide the most important criteria that should be considered when adsorbents are implemented on an industrial scale. Consequently, the review is summarized, and recommendations are offered for future research in the advancement of CO2 capture materials. The paper aims to establish a comprehensive theoretical basis of adsorption technologies currently progressed to reduce CO2 emissions, along with highlighting the identification and precise articulation of the most important future research paths that could be beneficial to address over the next years.
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| 2. |
- Halakarni, Mahaveer A., et al.
(författare)
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Forward osmosis process for energy materials recovery from industrial wastewater with simultaneous recovery of reusable water : a sustainable approach
- 2023
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Ingår i: Materials Today Sustainability. - : Elsevier BV. - 2589-2347. ; 22
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Tidskriftsartikel (refereegranskat)abstract
- In this study, a biopolymer-based forward osmosis (FO) membrane was used in combination with an easily recoverable and reusable draw solution (DS) for a simultaneous recovery of high-quality water and value-added products from industrial wastewater. Simultaneous wastewater dewatering resulted in a highly concentrated sludge that was reused as the electrode material. In this study, 86.92% dewatering was achieved using an easily recyclable mixture of ethylenediaminetetraacetic acid disodium (EDTA-2Na) with Triton X-100 micelles as the DS and a chitosan membrane with FO. The compatible membrane and the DS showed a flux of 5e6 L m-2 h-1 and a 0.008 +/- 0.002 mol m-2 h-1 reverse solute flux with a retention of >99.0% for all organic pollutants from the chosen real-world wastewater. The recovered DS after the third use showed a >83.57% and >78.84% constant flux retention for deionizedand tannery wastewater as feed. In long-term tests with simulated wastewaters containing various contaminants, they showed >99.0% retention of organics and modern foulants and long-term stability (96 h). At the end of the FO process, sludge with different concentrations of organic wastes was recovered. The recovered solid sludge was carbonized (800 0C) and used as the electrode material in a supercapacitor with a specific capacitance of 165 F/g at a current density of 0.5 A/g.
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| 3. |
- Sun, W., et al.
(författare)
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A "win-win" photocatalysis : coupling hydrogen production with the synthesis of high value-added organic chemicals
- 2023
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Ingår i: Materials Today Sustainability. - : Elsevier. - 2589-2347. ; 23:100465
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Tidskriftsartikel (refereegranskat)abstract
- Photocatalytic hydrogen (H2) production and selective organic synthesis provide an environmentally friendly strategy to generate solar fuel and high-value organic products, respectively. However, these reactions usually either suffer from low reaction kinetics or need the aid of sacrificial reagents as electron donors or acceptors, thus lacking in economic benefit. Is there any synergetic effect between these two types of reactions? Recently, combining H2 evolution with selective organic synthesis in one photo-catalytic system has been reported. In these dual-functional photocatalytic reactions, both photoexcited electrons and holes can be utilized to produce target products, making the overall process more efficient. In this minireview, we begin with a concise discussion of the fundamental principles of simultaneous photocatalytic H2 production and organic synthesis using semiconductor-based photocatalysts. Emphasis is placed on emerging materials or novel strategies selected in this dual-functional photo-redox reaction system, including the characteristics of photocatalysts and/or potential reaction mechanisms. Finally, remaining challenges and personal perspectives on future development in this field are put forward. It is expected that this review will provide inspirational guidance on the rational design of photocatalysts with dual-functional reaction capability, invigorating the development of economical and efficient H2 generation and/or value-added organic synthesis.& COPY; 2023 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
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