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Hydrogen spillover boosts PET upcycling to aviation fuel additives over Co–ReOx catalysts
DOI: 10.1039/D5GC01315A, PaperXin Zhao, Hui Wang, Zhecheng Fang, Zixu Ma, Shuzhuang Sun, Dan Wu, Yongsheng Zhang, Chunbao Charles Xu, Shengyong Lu, Renfeng Nie, Jie Fu
The Co-ReOx exhibits a 3.0-fold enhancement in direct and selective conversion of PET to p-xylene (PX) compared to its Co counterpart, attributable to the synergistic interaction between Co and ReOx and their facilitated hydrogen spillover.
The content of this RSS Feed (c) The Royal Society of Chemistry
Oxygen-harvesting carbon dot photocatalysts for ambient tandem oxidative synthesis of quinazolin-4(3H)-ones
DOI: 10.1039/D5GC00962F, PaperBidyutjyoti Dutta, Bramhaiah Kommula, Kiran Kanwar, Ankur K. Guha, Ujjal K. Gautam, Diganta Sarma
An efficient photocatalytic route to one pot oxidative synthesis of quinazolin-4(3H)-ones using acidic and oxygenphilic waste derived carbon dots as an inexpensive metal-free photocatalyst cum oxidant.
The content of this RSS Feed (c) The Royal Society of Chemistry
Advances in paired electrolysis for furfural conversion: from design principle, mechanisms to perspectives
DOI: 10.1039/D5GC01306B, Critical ReviewZhikang Zhang, Jianan Li, Shuyi Yang, Tao E, Chong Peng
As a crucial biomass derivative, furfural (FF) can be converted into various high value-added chemicals in an environmentally friendly and efficient manner through electrocatalytic technology.
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Feasibility study of an electrochemical hydrogen looping system for indirect ocean capture
DOI: 10.1039/D4GC05943C, PaperSiebe De Ley, Sven Arnouts, Kevin Van Daele, Jonas Hereijgers, Tom Breugelmans
Electrochemical hydrogen looping is a recently developed, sustainable technology to address decentralized anthropogenic carbon dioxide emissions by indirectly retrieving CO2 from oceans.
The content of this RSS Feed (c) The Royal Society of Chemistry
Highly efficient sulfurized Re–Ir catalysts for multiple N-methylation of ethylenediamine and its homologous series with CO2 and H2 in water solvent
DOI: 10.1039/D5GC01522G, Paper
Open Access 
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Min Wang, Mizuho Yabushita, Kazuki Okuma, Tomohiro Shono, Yoshinao Nakagawa, Keiichi TomishigeSulfurized, highly dispersed clusters composed of Re and Ir species on carbon black showed unique catalytic performance for multiple N-methylation of aliphatic amines consisting of C2/C3 unit wedged between two amino groups with CO2 and H2 in water.
The content of this RSS Feed (c) The Royal Society of Chemistry
A general strategy for strengthening and toughening physical hydrogels via anti-Hofmeister sequence solid salting-out
DOI: 10.1039/D5GC00826C, PaperEn-Jiang Liu, Ding-Ding Lü, Bai-Chuan Lu, Run-Ze Hu, Shi-Wen Guo, Chen-Man Zong, Xiao-Hui Yao, Xue-Yang Wang, Tao Chen, Ai-Jun Wan, Dong-Yang Zhang
As a green and general strategy, the solid salting-out strategy can greatly enhance the strength and toughness of physical hydrogels without the use of additional cross-linking agents and complex processes.
The content of this RSS Feed (c) The Royal Society of Chemistry
Engineering a hybrid system of Corynebacterium glutamicum and co-immobilized enzymes for efficient cadaverine production from glycerol
DOI: 10.1039/D5GC00694E, PaperYunpeng Lv, Simin Liu, Liang Wei, Lei Zhang, Haishan Qi
A hybrid system of C. glutamicum and co-immobilized enzyme was developed for efficient cadaverine production from glycerol as the sole carbon source.
The content of this RSS Feed (c) The Royal Society of Chemistry
Production of high-carbon-number hydrocarbon bio-aviation fuels via catalytic hydrogenation of vanillin and non-catalytic condensation: a mechanistic study with DFT and experimental insights
DOI: 10.1039/D5GC00281H, Paper
Open Access 
  This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Jina Eun, Jeonghun Kim, Han Byeol Kim, Do Heui Kim, Jae-Wook Choi, Kwang Ho Kim, Chun-Jae Yoo, Seongmin Jin, Kyeongsu Kim, Hyunjoo Lee, Chang Soo Kim, Kwan-Young Lee, Jong Suk Yoo, Seo-Jung Han, Keunhong Jeong, Jeong-Myeong HaLignocellulose or lignin present significant potential as sustainable feedstocks to replace petroleum-derived resources through catalytic upgrading.
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Organic carbonates as green media: from laboratory syntheses to industrial applications
DOI: 10.1039/D5GC00536A, Critical Review
Open Access   This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Giacomo Trapasso, Fabio AricòThis review reports the applications of commercially available and custom-made organic carbonates as green media from laboratory to industrial scale applications.
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Continuous flow tube-in-tube oxidation of HMF to FDCA using heterogeneous manganese catalyst under mild conditions
DOI: 10.1039/D5GC02459E, Paper
Open Access   This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Federica Valentini, Francesco Ferlin, Luigi VaccaroHighly efficient and sustainable continuous production of FDCA was achieved using a cost-effective manganese-based catalyst, air as the oxidant, and heterogeneous tube-in-tube flow technology.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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Correction: Highly selective, catalyst-free CO2 reduction in strong acid without alkali cations by a mechanical energy-induced triboelectric plasma-electrolytic system
DOI: 10.1039/D5GC90104A, Correction
Open Access   This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Hui Hu, Nannan Liu, Qinglong Ru, Wei Jiang, Yongcui Yang, Kailan Ma, Lixiang Meng, Zuliang Du, Bao Zhang, Gang ChengThe content of this RSS Feed (c) The Royal Society of Chemistry
Outstanding Reviewers for Green Chemistry in 2024
DOI: 10.1039/D5GC90093J, Editorial
We would like to take this opportunity to highlight the Outstanding Reviewers for Green Chemistry in 2024, as selected by the editorial team for their significant contribution to the journal.
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Electrocatalytic oxidation of biomass-derived furans to 2,5-furandicarboxylic acid – a review
DOI: 10.1039/D5GC01181G, Tutorial ReviewBingkun Chen, Qidong Hou, Richard Lee Smith, Xinhua Qi, Haixin Guo
Analysis of key factors that affect electrocatalytic oxidation and separation and purification processes for the conversion of biomass-derived furans into 2,5-furandicarboxylic acid (FDCA).
To cite this article before page numbers are assigned, use the DOI form of citation above.
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Mechanochemical approach to polymer-functionalized black phosphorus nanomaterials for precious metal recovery
DOI: 10.1039/D5GC00274E, Paper
Open Access   This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Obida Bawadkji, Peng Tang, Christian Müller, Rainer HaagWe developed a solvent-free mechanochemical method to synthesize a BP–PG nanohybrid capable of selectively reducing Au3+ to stabilized gold nanoparticles, achieving a recovery capacity over three times its own weight
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The hydrogen economy fairytale
DOI: 10.1039/D5GC00946D, Perspective
Open Access   This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Tycho Ehrhardt, Gadi RothenbergGreen fairytales. We may not like it, but the reality is that green hydrogen is too expensive and its manufacturing on a large global scale in the 21st century is untenable.
The content of this RSS Feed (c) The Royal Society of Chemistry
How to correctly evaluate greenness, whiteness and other “colours”? Introducing general rules of a good evaluation practice
DOI: 10.1039/D5GC00615E, Perspective
Open Access   This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Paweł Mateusz NowakProposal of a general set of universal rules allowing an increase in the scientific value provided by the evaluation of greenness and other “colours”.
The content of this RSS Feed (c) The Royal Society of Chemistry
Pompieri e PFAS
Luigi Campanella, già Presidente SCI
La divisa di un vigile del fuoco è costituita da diversi strati per difendere il suo corpo dal fuoco contro cui dovrà combattere, dalle sostanze nocive con cui venissero a contatto, anche dai fumi. Di fatto resta esposto solo il viso che viene coperto da maschere filtranti solo se l’intervento lo richiede. Per essere efficaci e svolgere il loro ruolo protettivo, i completi anti-fiamma devono essere costruiti con materiali resistenti al fuoco, e quelli in dotazione al Corpo nazionale dei vigili del fuoco (C.N.VV.F) contengono il Politetrafluoroetilene (Ptfe), più conosciuto come Teflon, e altri Pfas, le sostanze perfluoralchiliche note soprattutto per essere responsabili di una delle più grandi contaminazioni ambientali italiane, avvenuta in provincia di Vicenza a opera dell’azienda Miteni e di patologie tumorali diverse. Negli Stati Uniti è stata dimostrata la correlazione tra l’esposizione ai Pfas tramite i Dpi e alcune malattie che colpiscono i pompieri, in Italia un’indagine epidemiologica
IrpiMedia ha fatto analizzare un giaccone anti-fiamma di un pompiere italiano e la concentrazione di Pfas rilevata induce a considerare opportune indagini più approfondite su tale indumento.
Il Teflon, fino a qualche anno fa conteneva Pfoa, un Pfas considerato cancerogeno e vietato dal 2013 a causa della sua pericolosità per l’uomo. È noto soprattutto per essere contenuto nelle padelle antiaderenti; si tratta di un composto che non fa propagare le fiamme, permette ai tessuti di resistere a temperature elevate, è idro e olio repellente, quindi ideale per le tute da intervento dei vigili del fuoco. Il prolungato tempo di indossamento delle tute antifiamma ed il calore dovuto alle alte temperature durante gli incendi potrebbero però aumentare la capacità del corpo umano di assorbire Pfas. IrpiMedia ha consultato diversi capitolati del Ministero dell’Interno, scoprendo che a partire dal 2010 è specificato che la membrana esterna al giaccone e al pantalone deve essere composta da Politetrafluoroetilene (Ptfe) a struttura microporosa espansa e che sulla parte interna delle cuciture esterne deve essere applicato un nastro Ptfe idoneo ad assicurare una perfetta aderenza». Alcuni pompieri hanno scoperto le loro patologie grazie ai controlli sanitari, emocromo, spirometria, misura della vista, elettrocardiogramma, consulto psicologico a cui devono sottoporsi ogni due anni. IrpiMedia ha inviato una giacca da pompiere italiano negli Stati Uniti al professor Graham Peaslee che per primo aveva studiato la correlazione causa effetto nel caso delle patologie riscontrate nei pompieri e che si era offerto di condurre l’analisi e la misurazione della quantità totale di fluoropolimeri presenti nel giaccone italiano. La sua risposta è stata: “i tessuti costruiti con fluoropolimeri presentano un valore di fluoro totale di circa 50.000 ppm (parti per milione) o superiore, ciò equivale a circa il 5% di fluoro sulla superficie. La barriera anti umidità interna dei dispositivi di protezione è in genere realizzata in Ptfe che, quando viene misurato, restituisce concentrazioni di fluoro totale superiori al 20-30%. I vostri ricambi italiani sembravano avere valori di fluoro totale identici a quelli misurati negli Stati Uniti e in Australia».
Secondo queste dichiarazioni, le tute italiane potrebbero quindi contenere diversi tipi di Pfas, come le tute statunitensi e australiane che, secondo Peaslee, possiedono una quantità di Pfoa pari a 2,18 ng/g. marzo 2024.
A seguito di ciò il Conapo, il sindacato autonomo dei Vigili del Fuoco e l’USB hanno richiesto al Ministro dell’Interno e a quello della Salute, studi sull’incidenza dei Pfas nel Corpo Nazionale dei Vigili del Fuoco e accertamenti sanitari sui vigili esposti a queste sostanze.
Il ministero dell’Interno ha dato la stessa risposta del 2021, ovvero che le analisi da loro visionate, realizzate da un laboratorio accreditato, hanno fornito “valori non significativi dal punto di vista della misura”. Per il Ministero, dunque, le tute utilizzate dai pompieri italiani, non presentano quantità pericolose di Pfas.
https://irpimedia.irpi.eu/tute-pompieri-italiani-pfas-tumori/
B(C6F5)3-catalysed cyclic carbonate editing
DOI: 10.1039/D5GC01888A, CommunicationYicheng He, Krishnapriya Anattil Unnikrishnan, Wenhao Yin, Rositha Kuniyil, Haifeng Du, Wusheng Guo
An unprecedented B(C6F5)3-catalyzed cyclic carbonate editing approach is reported. DFT calculations detailed the reaction pathways and the origin of excellent stereoselectivity.
The content of this RSS Feed (c) The Royal Society of Chemistry
Asymmetric defective site-triggered triple synergistic modulation in nanoconfined aerogel for superior electrochemical conversion of low-concentration nitrate into ammonia
DOI: 10.1039/D5GC00830A, PaperKe Wang, Tong Zhao, Shiyu Zhang, Rupeng Wang, Meng Wang, Zixiang He, Shih-Hsin Ho
A synergistic strategy combining nanoconfinement with defect engineering is proposed to boost nitrate electroreduction via concentrating nitrate, enhancing nitrate adsorption, accelerating water dissociation, and suppressing hydrogen evolution.
The content of this RSS Feed (c) The Royal Society of Chemistry
Platinum nanoparticle-doped recycled PLA filament for sustainable additive manufactured electrocatalytic architectures
DOI: 10.1039/D5GC00851D, Paper
Open Access   This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Karen K. L. Augusto, Robert D. Crapnell, Elena Bernalte, Hayley G. Andrews, Orlando Fatibello-Filho, Craig E. BanksPt nps were produced on graphite flakes using an eco-friendly aqueous synthesis and no additional reagents/solvents. This was used to make a bespoke filament from recycled PLA and bio-based castor oil, using only 5 minutes of thermal mixing.
The content of this RSS Feed (c) The Royal Society of Chemistry