RSC sustainability最新文献_第9页

CO2 assisted geo-polymerization: a win-win pragmatic approach for the synthesis of soda ash leading to reversal of the climate clock† 二氧化碳辅助地质聚合：一种双赢的纯碱合成实用方法，可逆转气候时钟†。

RSC sustainability Pub Date : 2024-11-05 DOI: 10.1039/D4SU00541D

Sandeep Gupta

{"title":"CO2 assisted geo-polymerization: a win-win pragmatic approach for the synthesis of soda ash leading to reversal of the climate clock†","authors":"Sandeep Gupta","doi":"10.1039/D4SU00541D","DOIUrl":"https://doi.org/10.1039/D4SU00541D","url":null,"abstract":"It is surprising to note that there are very few literature reports available that envisage CO2 utilization with sodium silicates. Our research extends this concept by integrating CO2 assisted utilization of fly ash with sodium silicate. The alumino-silicate polymeric material was characterized using FT-IR and NMR techniques confirming the presence of Si–O–Al and Si–O–Si linkages, which are the foundations of the hardened structure, contributing to the strength in the block. Chemical tests and spectroscopic measurements further confirmed the phase and crystallinity of the synthesized soda ash. A feasible reaction mechanism has also been proposed for the alumino-silicate polymerization, which not only leads to the formation of industrially important chemicals like Na2CO3 (soda ash) but also results in the making of construction blocks with strengths of 11–14 MPa and water absorption of 11–15%. The presented chemical scheme utilizes a voluminous amount of CO2, thereby this approach may conserve the global carbon budget, and hence it may play an important role in reversing the climate clock.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 12","pages":" 3782-3787"},"PeriodicalIF":0.0,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/su/d4su00541d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142736703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Elucidating the role of the nanostructure in protein aerogels for removal of organic water pollutants† 阐明蛋白质气凝胶中的纳米结构在去除水中有机污染物中的作用†。

RSC sustainability Pub Date : 2024-11-04 DOI: 10.1039/D4SU00352G

Rodrigo Sanches Pires, Antonio J. Capezza, David Jonsson, Jessica Lyrner Morén, Mikael S. Hedenqvist and Christofer Lendel

{"title":"Elucidating the role of the nanostructure in protein aerogels for removal of organic water pollutants†","authors":"Rodrigo Sanches Pires, Antonio J. Capezza, David Jonsson, Jessica Lyrner Morén, Mikael S. Hedenqvist and Christofer Lendel","doi":"10.1039/D4SU00352G","DOIUrl":"https://doi.org/10.1039/D4SU00352G","url":null,"abstract":"Access to efficient and affordable materials for water purification is of fundamental importance for the sustainable development of our society. Materials based on protein nanofibrils (PNFs) from agricultural waste- or side streams have recently been shown to have excellent adsorption properties for organic as well as inorganic pollutants. We here investigate the role of the nanostructure in aerogels made from whey protein isolate for the removal of a model pollutant (ibuprofen) from water. Water stable aerogels were produced using a recently developed approach for intrinsic crosslinking of protein materials without requiring additives. By comparing materials made from PNFs and from non-fibrillar whey protein we find that the fibrils have dual roles in enhancing the ibuprofen binding capacity. The PNFs do have a higher direct binding affinity but they also remodel the cell wall structures of the aerogels, resulting in a mesoporous network with enhanced ability of pollutant adsorption.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 12","pages":" 4036-4045"},"PeriodicalIF":0.0,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/su/d4su00352g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142736721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CO2 hydrogenation on ruthenium: comparative study of catalyst supports† 钌上的 CO2 加氢：催化剂载体的比较研究†。

RSC sustainability Pub Date : 2024-11-04 DOI: 10.1039/D4SU00469H

Göran Baade, Jens Friedland, Koustuv Ray and Robert Güttel

{"title":"CO2 hydrogenation on ruthenium: comparative study of catalyst supports†","authors":"Göran Baade, Jens Friedland, Koustuv Ray and Robert Güttel","doi":"10.1039/D4SU00469H","DOIUrl":"https://doi.org/10.1039/D4SU00469H","url":null,"abstract":"To achieve a significant reduction in anthropogenic CO2 in the near future, captured carbon has to be valorized. To this end, CO2 may be activated using H2 to form sustainable fuels (synthetic natural gas), platform chemicals (methanol) and higher hydrocarbons (modified Fischer–Tropsch process). In this work we synthesize Ru based catalysts from various commercially available support materials and test them under lower temperatures than usually employed at various partial pressures of CO2 and H2 using methanation as a model reaction. The results show Ru/TiO2, Ru/ZrO2 and Ru/Al2O3 as the most active catalysts with high activity, selectivity towards methane (>95%), and stability with little to no deactivation over 80 h. These most promising catalysts are further tested and kinetic parameters determined, which find reaction orders and activation energies in agreement with literature, but differing from catalyst to catalyst, hinting at complex reaction mechanisms including the support as well as the Ru. The TOF calculated for Ru/TiO2 at 190 °C is 5.7 s−1 and highlights it as the most active catalyst in this work. The study opens new and promising avenues for the valorization of CO2, as well as a basis to compare future optimizations and advances in the field of Ru-based CO2 conversion.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 12","pages":" 3826-3834"},"PeriodicalIF":0.0,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/su/d4su00469h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142736706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploration of lignin-binding synthetic polymers with pendant hydrophobic amino acids†

RSC sustainability Pub Date : 2024-11-01 DOI: 10.1039/D4SU00433G

Tomonari Tanaka, Rika Hinohara, Oscar Abraham Carias Duron, Yuji Aso, Naoko Kobayashi, Kaori Saito and Takashi Watanabe

引用次数: 0

Effects of chemical pretreatment on the enzymatic hydrolysis of post-consumer waste viscose† 化学预处理对消费后废弃粘胶†酶水解的影响

RSC sustainability Pub Date : 2024-10-31 DOI: 10.1039/D4SU00486H

Edvin Bågenholm-Ruuth, Mahla Bagherigelvardi, Caroline Gustafsson, Miguel Sanchis-Sebastiá and Ola Wallberg

{"title":"Effects of chemical pretreatment on the enzymatic hydrolysis of post-consumer waste viscose†","authors":"Edvin Bågenholm-Ruuth, Mahla Bagherigelvardi, Caroline Gustafsson, Miguel Sanchis-Sebastiá and Ola Wallberg","doi":"10.1039/D4SU00486H","DOIUrl":"https://doi.org/10.1039/D4SU00486H","url":null,"abstract":"The pretreatment of post-consumer waste viscose before enzymatic hydrolysis was tested and evaluated to develop a tertiary recycling strategy for waste viscose, as no such strategy currently exists. There were differences between hydrolyzability of pre-consumer and post-consumer viscose, as we obtained 100% glucose yield from pre-consumer viscose while only 60–80% could be achieved from post-consumer, which we attributed to the inhibition – induced by contaminants that accumulated in the post-consumer viscose during its manufacture and use. Dilute alkali and acid pretreatment were applied to improve the hydrolysis of post-consumer viscose, although both of them proved unsuccessful strategies as alkali and acid pretreatment reduced glucose yield up to 28% and 44%, respectively. We concluded that avoiding pretreatment altogether was the most energy-efficient and resource-efficient alternative with regard to the saccharification of waste viscose. Thus, the economic viability of (enzymatically) saccharifying waste viscose depends entirely on the inherent hydrolyzability of the feedstock and its price.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 12","pages":" 3973-3980"},"PeriodicalIF":0.0,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/su/d4su00486h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142736734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CeNiO3 perovskite nanoparticles synthesized using gelatin as a chelating agent for CO2 dry reforming of methane† 以明胶为螯合剂合成的 CeNiO3 包晶纳米粒子用于甲烷的 CO2 干法转化†。

RSC sustainability Pub Date : 2024-10-30 DOI: 10.1039/D4SU00268G

Usman Zahid, Wahid Sidik Sarifuddin, Abdul Hanif Mahadi, Holilah, Didik Prasetyoko and Hasliza Bahruji

{"title":"CeNiO3 perovskite nanoparticles synthesized using gelatin as a chelating agent for CO2 dry reforming of methane†","authors":"Usman Zahid, Wahid Sidik Sarifuddin, Abdul Hanif Mahadi, Holilah, Didik Prasetyoko and Hasliza Bahruji","doi":"10.1039/D4SU00268G","DOIUrl":"https://doi.org/10.1039/D4SU00268G","url":null,"abstract":"CeNiO3 perovskite nanoparticles were synthesized using gelatin as a chelating agent to catalyze the CO2 dry reforming reaction. The optimization of gelatin concentration affects the formation of Ni coordinated on the B-sites of CeNiO3. CeNiO3 shows catalytic stability for 60 h with ∼50% CO2/CH4 conversion and a H2/CO ratio of ∼0.8 when obtained using low concentrations of gelatin (0.05 g, 0.1 g). The exsolution of Ni nanoparticles from CeNiO3 structures occurs during reduction treatment, expanding the crystal lattices of CeO2. A high gelatin concentration (0.2 g) reduced Ni mobility and restricted Ni–Ce contacts. The uncoordinated Ni in CeNiO3 exposes a high surface area (10.12 m2 g−1) for CH4 dissociation, consequently increasing the H2/CO ratio to ∼1.5 with 78% CH4 and 53% CO2 conversion. In situ DRIFTS analysis showed that CH4 readily dissociates in the absence of CO2, but CO2 completes the reaction cycles by removing the carbon as CO gas.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 12","pages":" 3806-3816"},"PeriodicalIF":0.0,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/su/d4su00268g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142736704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Direct measurement of PFAS levels in surface water using an engineered biosensor 利用工程生物传感器直接测量地表水中的 PFAS 含量。

RSC sustainability Pub Date : 2024-10-30 DOI: 10.1039/D4SU00349G

Madison Mann, Victoria Kartseva, Chelli Stanley, Maggie Blumenthal, Richard Silliboy and Bryan Berger

{"title":"Direct measurement of PFAS levels in surface water using an engineered biosensor","authors":"Madison Mann, Victoria Kartseva, Chelli Stanley, Maggie Blumenthal, Richard Silliboy and Bryan Berger","doi":"10.1039/D4SU00349G","DOIUrl":"10.1039/D4SU00349G","url":null,"abstract":"Per- and polyfluoroalkyl substances (PFAS) are a large set of emerging contaminants pervasive in the environment due to amphiphilic properties and strong carbon-fluorine bonds resistant to biodegradation. With an ever-increasing prevalence, the need for precise detection of these chemicals at low levels in drinking water is clear. However, ground and surface water as well as soil and other biosolids have become reservoirs for PFAS at extremely high levels. In fact, PFAS concentrations at part per billion and part per million levels are found in environmental samples taken near high contamination sites including industrial facilities and military bases. In this work, we demonstrate the application of a biosensor based on human liver fatty acid binding protein to detect perfluorooctanoic acid (PFOA) in surface water samples taken near Loring Airforce Base. We show this sensor can detect the high levels of PFOA found in the samples quickly and easily without the use of extensive sample pre-treatment or analytical methods. Therefore, we hope the future of this technology will better assess PFAS detection needs for a multitude of end point users.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 12","pages":" 3967-3972"},"PeriodicalIF":0.0,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11525949/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142570577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recovery of graphite from industrial lithium-ion battery black mass† 工业锂离子电池黑质中石墨的回收

RSC sustainability Pub Date : 2024-10-30 DOI: 10.1039/D4SU00427B

Xiaochu Wei, Zhenyu Guo, Yuanzhu Zhao, Yuqing Sun, Anna Hankin and Magda Titirici

{"title":"Recovery of graphite from industrial lithium-ion battery black mass†","authors":"Xiaochu Wei, Zhenyu Guo, Yuanzhu Zhao, Yuqing Sun, Anna Hankin and Magda Titirici","doi":"10.1039/D4SU00427B","DOIUrl":"https://doi.org/10.1039/D4SU00427B","url":null,"abstract":"The escalating production of commercial lithium-ion batteries (LIBs) is anticipated to result in a substantial accumulation of waste upon end-of-life disposal of LIBs, which however also represents a secondary source of raw materials. Among the components of LIBs, graphite anode is a critical material and its production via high-temperature carbonisation is highly energy- and cost-intensive. One of the major challenges regarding recycling of graphite materials from spent LIBs is the presence of residual metal and organic species that are difficult to eliminate, preventing direct reuse as anodes. Here, we propose a recycling workflow to eliminate the various impurities and regenerate the graphite materials from industrially sourced black mass, composed of mixed cathode materials, anode materials, aluminium and copper current collectors, Li salts, and polyvinylidene fluoride binders. After selective extraction of high-value transition metal ions, such as Li, Ni, and Co, from the black mass, the proposed workflow for graphite recovery involves a second step of acid leaching for the removal of Al, Cu, and other residual metal species, and mild-temperature pyrolysis for the removal of polyvinylidene fluoride (PVDF). The regenerated graphite (AG-2.0M-800) demonstrates an initial specific charge capacity of 387.44 mA h g−1 at 0.1C (35 mA g−1) in lithium half cells, on par with commercial battery-grade graphite. This workflow provides a promising approach to the recycling of spent graphite that could be integrated with existing cathode materials' recycling processes developed in the industry.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 1","pages":" 264-274"},"PeriodicalIF":0.0,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/su/d4su00427b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sustainable water-activated metal–air paper batteries based on waste biomass-based electrocatalysts† 基于废弃生物质电催化剂的可持续水活化金属空气纸电池†。

RSC sustainability Pub Date : 2024-10-30 DOI: 10.1039/D4SU00607K

Kosuke Ishibashi and Hiroshi Yabu

引用次数: 0

Photo-assisted (de)lithiation to enhance photoelectrochemical storage in quasi-solid-state Li-ion batteries† 用光辅助（脱）锂化技术提高准固态锂离子电池的光电化学储存能力†。

RSC sustainability Pub Date : 2024-10-29 DOI: 10.1039/D4SU00494A

Xin Mi, Jun Pan, Menglin Duan, Fuqiang Huang and Peng Qin

{"title":"Photo-assisted (de)lithiation to enhance photoelectrochemical storage in quasi-solid-state Li-ion batteries†","authors":"Xin Mi, Jun Pan, Menglin Duan, Fuqiang Huang and Peng Qin","doi":"10.1039/D4SU00494A","DOIUrl":"https://doi.org/10.1039/D4SU00494A","url":null,"abstract":"The development of photo-assisted rechargeable batteries is an attractive approach to realize the conversion and storage of solar energy in a single device, but designing bifunctional electrodes and improving their safety are challenging. Herein, we chose CsPbBr3 perovskites as the photo-responsive unit and lead phytate as the ion storage unit for the construction of a dual-functional cathode. The designed photo-cathode possessed enhanced photon responsiveness to benefit solar conversion and reversible redox centers for direct energy storage. Moreover, considering the safety of photo-assisted Li-ion batteries (PA-LIBs), a polymer-based electrolyte was used instead of a traditional liquid-based electrolyte to further restrict leakage and decomposition issues. During the photo-assisted charging and discharging processes (AM 1.5 G, 100 mW cm−2), the specific capacity of the assembled quasi-solid-state PA-LIB increased by 11.4% and 64.8%, respectively, compared with conventional electric charging and discharging, thus providing an efficient and sustainable strategy to realize solar-driven electrochemical energy storage.","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 12","pages":" 3999-4007"},"PeriodicalIF":0.0,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/su/d4su00494a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142736736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0