RSC sustainability最新文献

{"title":"Promoting uniform zinc coatings through the use of quaternary ammonium salts based on phthalimide as electroplating additives†","authors":"Kexin Du, Xuyang Li, Wenhao Zhou, Peikun Zou, Nayun Zhou, Xin Chen and Limin Wang","doi":"10.1039/D4SU00343H","DOIUrl":"https://doi.org/10.1039/D4SU00343H","url":null,"abstract":"<p >Five quaternary ammonium salts derived from phthalimide compounds (<strong>PI1</strong> to <strong>PI5</strong>) were synthesized and used for the first time as additives in zinc electroplating. Electrochemical experiments and theoretical calculations identified <strong>PI4</strong> as the most effective compound for inhibiting zinc deposition and enhancing electrode adsorption among these compounds. Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), and X-ray Diffraction (XRD) confirmed that <strong>PI4</strong> significantly improves the uniformity and compactness of the zinc coatings. Moreover, the role of <strong>PI4</strong> in zinc electroplating was elucidated. It reduces the interfacial tension between the electroplating solution and the substrate surface, facilitating uniform deposition of metal ions on the substrate, thus resulting in smoother and more adherent coatings. This study provides insights for future research on aqueous zinc-ion batteries, particularly regarding zinc anodes, and also provides a way for sustainable development.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 11","pages":" 3500-3506"},"PeriodicalIF":0.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/su/d4su00343h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142565743","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}

{"title":"Carboxylation reactions for the sustainable manufacture of chemicals and monomers","authors":"Laura Faba and Salvador Ordóñez","doi":"10.1039/D4SU00482E","DOIUrl":"https://doi.org/10.1039/D4SU00482E","url":null,"abstract":"<p >Carboxylation stands out as one of the most versatile and viable routes for carbon dioxide fixation, a crucial chemical transformation essential for advancing capture technologies and fostering a sustainable industry. The carboxylic acids and derivatives produced through this process hold considerable interest for various sectors, including pharmaceuticals and polymers. Presently, most of these chemicals are derived from non-renewable resources, underscoring the imperative need to develop sustainable pathways for their synthesis. The inherent stability of the CO<small>₂</small> molecule, owing to its high oxidation state and linear configuration, poses significant challenges for activation. Diverse approaches, including photochemical, electrochemical, enzymatic, and thermochemical carboxylation have been explored. While noteworthy results have been achieved with these methods, substantial efforts are still required to facilitate their scalability. This review provides a comprehensive overview of each of these routes, elucidating their respective strengths and weaknesses. Emphasis is placed on thermochemical routes, given their proximity to potential industrial-scale application.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 11","pages":" 3167-3182"},"PeriodicalIF":0.0,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/su/d4su00482e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142565673","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}

{"title":"Chemically recyclable and reprogrammable epoxy thermosets derived from renewable resources†","authors":"Tankut Türel, Özgün Dağlar, Christos Pantazidis and Željko Tomović","doi":"10.1039/D4SU00382A","DOIUrl":"https://doi.org/10.1039/D4SU00382A","url":null,"abstract":"<p >Epoxy thermosets constitute a significant portion of high-performance plastics due to their excellent thermal and mechanical properties, making them suitable for a wide range of applications. However, traditional epoxy networks are produced from a petroleum-based, reprotoxic and endocrine-disruptor DGEBA and face significant limitations in chemical recycling. Current recycling methods for epoxy systems rely on harsh and non-green conditions, often resulting in a mixture of small molecules and oligomers that are tedious to isolate or repurpose. Consequently, it is crucial to develop bio-based monomers with functional groups that enable the synthesis of fully recyclable polymers. For this purpose, herein, we have employed a bio-based, liquid monomer <strong>C2</strong> derived from vanillin, containing aldehyde, acetal, and oxirane-ring functionalities, which was polymerized under solvent-free, green conditions with bio-derived diamines, resulting in an array of doubly cleavable epoxy thermosets with diverse thermal and mechanical properties. These networks combine the desirable properties of traditional epoxy systems with intrinsic mildly cleavable nature. Remarkably, these thermosets can be fully depolymerized into reusable vanillin and well-defined polyols, or they can be recycled and reprogrammed through a transimination pathway. This innovative approach, combining controlled depolymerization, closed-loop recycling and reprogramming, offers significant potential for sustainable polymer management.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 11","pages":" 3311-3319"},"PeriodicalIF":0.0,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/su/d4su00382a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142565696","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}

{"title":"Utilization of green resource-based Mimosa pudica hydrogel powder in a cellulose acetate-based polymeric membrane as absorbent: a sustainable approach towards female hygiene application†","authors":"Roshni Pattanayak, Sukanya Pradhan and Smita Mohanty","doi":"10.1039/D4SU00381K","DOIUrl":"https://doi.org/10.1039/D4SU00381K","url":null,"abstract":"<p >This study presents the development of a novel membrane-based absorbent by incorporating <em>Mimosa pudica</em> hydrogel (MPH) powder, derived from the mucilage of its seeds, into a cellulose acetate polymer matrix using the non-solvent induced phase separation (NIPS) method. The membranes were prepared with varying weight percentages (wt%) of MPH to evaluate their potential as absorbent cores for hygiene products. The enhanced absorbency observed for 1 wt% MPH-loaded cellulose acetate membrane (MCA-2) was attributed to the MPH powder's large surface area and macroporous structure, as confirmed by Brunauer–Emmett–Teller (BET) analysis. The MCA-2 membrane exhibited maximum absorbency values of 276.66%, 402.87%, and 572.5% in distilled water, 0.9 wt% saline solution, and defibrinated sheep blood, respectively, within 30 minutes along with an absorbency under load value of 439.69% in saline solution at 60 minutes. An in-depth analysis of the thermal, mechanical, morphological and topographical properties of the developed membrane was conducted. This exhibited a modulus value of approximately 120 ± 0.5 MPa with 13.07 ± 0.2% elongation and also possessed significant antibacterial properties against <em>E. coli</em> and <em>S. aureus</em> bacteria justifying its potential as an absorbent core. Additionally, 16S rRNA sequencing was performed to identify bacteria involved in soil burial degradation, highlighting its overall impact and sustainability towards the environment. These findings suggest that MPH-incorporated membranes hold significant promise as absorbent materials in female hygiene applications.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 11","pages":" 3525-3545"},"PeriodicalIF":0.0,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/su/d4su00381k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142565746","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}

{"title":"Sustainable brain-inspired electronics: digging into natural biomaterials for healthcare applications","authors":"João V. Paulin and Carlos C. B. Bufon","doi":"10.1039/D4SU00459K","DOIUrl":"https://doi.org/10.1039/D4SU00459K","url":null,"abstract":"<p >With traditional medical technologies shifting towards a more personalized point-of-view, current semiconductor-based electronics may need high-performance computing capability for cognitive and adaptive functions based on unspecific, multi-input, and complex tasks. Hence, developing electronic devices with improved capabilities is of utmost interest. One option takes inspiration from the synapse functionalities of the human brain. Due to their scalability and low power consumption, memristors and electrolyte-gated transistors are ideal candidates for efficient brain-inspired applications. Additionally, combining these device architectures with natural biomaterials (environmentally benign, biodegradable, biocompatible, and mechanically conformable) represents a new horizon toward transient and implantable synaptic devices. Here, we advertised the advances in artificial synaptic systems based on natural biomaterials and how these devices can be integrated into sustainable and intelligent healthcare systems. Our comprehensive review formulates the steps necessary for the next generation of healthcare electronics to flourish.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 11","pages":" 3235-3263"},"PeriodicalIF":0.0,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/su/d4su00459k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142565677","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}

{"title":"Correction: Hydrochar from Sargassum muticum: a sustainable approach for high-capacity removal of Rhodamine B dye","authors":"D. Spagnuolo, D. Iannazzo, T. Len, A. M. Balu, M. Morabito, G. Genovese, C. Espro and V. Bressi","doi":"10.1039/D4SU90040E","DOIUrl":"https://doi.org/10.1039/D4SU90040E","url":null,"abstract":"<p >Correction for ‘Hydrochar from <em>Sargassum muticum</em>: a sustainable approach for high-capacity removal of Rhodamine B dye’ by D. Spagnuolo <em>et al.</em>, <em>RSC Sustain.</em>, 2023, <strong>1</strong>, 1404–1415, https://doi.org/10.1039/D3SU00134B.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 11","pages":" 3546-3547"},"PeriodicalIF":0.0,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/su/d4su90040e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142565747","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}

{"title":"Ultra-thin order–disorder CeO2 nanobelts as the non-carbon support of the PtCu catalyst towards methanol oxidation and oxygen reduction reactions†","authors":"Han Zhi, Boda Dong, Xingxing Guo and Feng Xu","doi":"10.1039/D4SU00449C","DOIUrl":"https://doi.org/10.1039/D4SU00449C","url":null,"abstract":"<p >The use of carbon supports in direct methanol fuel cells easily leads to the shedding and poisoning of the Pt catalyst and hence the decrease of catalytic activity. Non-carbon materials have been studied to enhance the metal–support interaction and the catalytic performance. Herein, we explored ultra-thin CeO<small>₂</small> nanobelts (2D-CeO<small>₂</small>) with the order–disorder structure as the support of the PtCu catalyst. PtCu/2D-CeO<small>₂</small> shows the highest current density of 37.24 mA cm<small>⁻²</small> toward the methanol oxidation reaction (MOR), and a limiting current density of 4.82 mA cm<small>⁻²</small> towards the oxygen reduction reaction. The order–disorder structure of 2D-CeO<small>₂</small> generates a high volume of oxygen vacancies and strong metal–support interaction. The Pt<small>⁰</small> proportion of PtCu/2D-CeO<small>₂</small> is much higher than that of PtCu/C which increases the active sites. The d-band center of PtCu is lowered which facilitates the adsorption and dissociation of reactants, thereby dramatically boosting the electro-catalytic performance.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 11","pages":" 3456-3463"},"PeriodicalIF":0.0,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/su/d4su00449c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142565739","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}

{"title":"High performance long chain polyesters via melt copolymerization of cutin-inspired monomers†‡","authors":"Zewen Zhu, Joshua T. Damron, Jong K. Keum, Logan Kearney, Vera Bocharova and Jeffrey C. Foster","doi":"10.1039/D4SU00454J","DOIUrl":"https://doi.org/10.1039/D4SU00454J","url":null,"abstract":"<p >Biopolymers have exhibited potential as sustainable and circular replacements to existing commodity thermoplastic polymers. However, current biopolymers are limited by poor thermomechanical performance compared with their petroleum-derived counterparts. Herein, we report a simple strategy to achieve good mechanical properties in bio-inspired long-chain polyesters <em>via</em> melt copolymerization. By combining mono- and poly-hydroxyl functionalized long chain fatty acids, we show that tough, semi-crystalline materials can be produced that outperform related biopolymers in terms of their thermomechanical behavior. We envision that long-chain polyesters derived from hydroxylated fatty acids represent an ideal platform to create the next generation of commodity thermoplastics that possess advantaged properties, inherent biodegradability, and feedstock stability.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 11","pages":" 3289-3297"},"PeriodicalIF":0.0,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142565678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ti3C2Tx MXene coupled Co(OH)2: a stable electrocatalyst for the hydrogen evolution reaction in alkaline media","authors":"Muhammad Yameen Solangi, Aashiq Ali Lakhair, Farkhanda Zaman Dayo, Rehan Ali Qureshi, Abdulaziz Alhazaa, Muhammad Ali Shar, Abdul Jalil Laghari, Imtiaz Ali Soomro, Muhammad Nazim Lakhan, Abdul Hanan and Umair Aftab","doi":"10.1039/D4SU00392F","DOIUrl":"https://doi.org/10.1039/D4SU00392F","url":null,"abstract":"<p >Green hydrogen (H<small>₂</small>) production <em>via</em> water electrolysis is a promising technique. Within this domain, two dimensional (2D) materials are gaining more attention throughout the world particularly in energy conversion/storage devices due to their unique features. Herein, this study focuses on the development of sustainable, durable, and economical electrocatalysts based on titanium carbide (Ti<small>₃</small>C<small>₂</small>T<small>_<em>x</em></small>) MXene and cobalt hydroxide (Co(OH)<small>₂</small>) as a composite. Ti<small>₃</small>C<small>₂</small>T<small>_<em>x</em></small> has been doped into Co(OH)<small>₂</small> (CT nanostructure) with varying concentrations by the aqueous chemical growth method. The as-prepared electrocatalysts (CT-15 and CT-30) have been investigated through different physicochemical characterization studies including X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and electrochemical analysis in order to access their morphology, crystalline phase homogeneity, surface functionalization, and electrochemical behaviour for the HER. It is observed that the as-prepared material (CT-30) exhibits superior hydrogen evolution reaction (HER) activity in 1.0 M potassium hydroxide (KOH). The optimised electrocatalyst CT-30 demonstrates an overpotential of 380 mV at a current density of 10 mA cm<small>⁻²</small> with a 99 mV dec<small>⁻¹</small> Tafel slope value, showing fast reaction kinetics. Moreover, it offers a low charge transfer resistance (<em>R</em><small>_ct</small>) accompanied by good stability, high electrochemical active surface area (ECSA), and durability for 30 h, as evident for efficient HER activity. This novel electrocatalyst can contribute to the replacement of noble metal-based electrocatalysts for practical usage in energy conversion/storage systems.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 11","pages":" 3424-3435"},"PeriodicalIF":0.0,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/su/d4su00392f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142565681","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}

{"title":"Fractional precipitation of Ni and Co double salts from lithium-ion battery leachates†","authors":"John R. Klaehn, Meng Shi, Luis A. Diaz, Daniel E. Molina, Reyixiati Repukaiti, Fazlollah Madani Sani, Margaret Lencka, Andre Anderko, Navamoney Arulsamy and Tedd E. Lister","doi":"10.1039/D4SU00303A","DOIUrl":"https://doi.org/10.1039/D4SU00303A","url":null,"abstract":"<p >Alternative sourcing of critical metals from lithium-ion batteries (LIBs) is necessary to secure the future supplies of Li, Ni, and Co. Most recovery processes of LIBs utilize pyrometallurgical and hydrometallurgical methodologies; however, these processes to recycle LIB cathode/anode materials can require several steps to isolate the desired metals. We have developed a facile isolation of the valued metals, where Ni and Co will co-crystallize as a sulfate double salt, called Tutton's salt [(NH<small>₄</small>)<small>₂</small>Ni/Co(SO<small>₄</small>)<small>₂</small>·6H<small>₂</small>O]. Thermodynamic modelling of these Ni(<small>II</small>)/Co(<small>II</small>) sulfate double salts shows that Ni is less soluble than Co which could enhance the separation of Ni and Co from electrochemical (EC) leachates. This calculated difference between Ni and Co can be controlled further by temperature and ammonium sulfate concentration. Here, Ni-rich sulfate double salts were achieved at 30–45 °C while Co-rich sulfate double salts were formed at 2–9 °C, where 99% Ni and 89% Co were recovered from the EC-leach solution. Further tests with the leachate solution show that crystallization occurs above pH 2 which allows for higher pulp density leachates. Chemical analyses and single crystal X-ray characterization confirm that the Ni-rich sulfate double salts contain Ni and Co. However, the Co-rich sulfate double salts have ∼30% Mn(<small>II</small>) in the crystal lattice with ∼37% of Ni. As a result, this process reduces the total number of steps to isolate the desired metals while also reducing chemical waste generation and without employing organic solvents.</p>","PeriodicalId":74745,"journal":{"name":"RSC sustainability","volume":" 11","pages":" 3298-3310"},"PeriodicalIF":0.0,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/su/d4su00303a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142565695","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}