Green Chemistry最新文献

{"title":"The critical role of crystal phases of LaPO4 in controlling the acidic sites for the production of 5-hydroxymethylfurfural from glucose","authors":"Yanjuan Yang ,&nbsp;Yuhuan Li ,&nbsp;Liang Deng ,&nbsp;Shangzhi Xie ,&nbsp;Chuang Gao ,&nbsp;Zixu Yang ,&nbsp;Jing Xu","doi":"10.1039/d5gc01931a","DOIUrl":"10.1039/d5gc01931a","url":null,"abstract":"<div><div>The production of 5-hydroxymethylfurfural (5-HMF) from saccharide conversion has fallen short of industrial expectations due to low reaction efficiency and high costs. Herein, we fabricated a series of LaPO₄ catalysts with controlled crystal structures and tuned acidity <em>via</em> a facile hydrothermal method. The hexagonal LaPO₄-120 catalyst exhibited a high glucose conversion of 99.9% and a remarkable 5-HMF yield of 90.1% at 150 °C for 60 min. Additionally, the hexagonal LaPO₄-120 catalyst showed promising activities in converting various saccharides including fructose, glucose, cellobiose, sucrose, and inulin. A series of characterization studies and DFT calculations revealed that the hexagonal LaPO₄-120 catalyst possessed low-coordination La sites and abundant zeolitic water stored in the open and oxygen-lined channels, which provided Lewis acid sites and a dynamically local Brønsted acid environment to respectively facilitate glucose isomerization and the subsequent dehydration. A plausible reaction mechanism involving a synergetic proton transfer <em>via</em> hydrogen bonding is proposed. This study offers insights for the design of low-cost and heterogeneous catalysts with finely tuned Lewis and Brønsted acid sites for 5-HMF production.</div></div>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":"27 35","pages":"Pages 10915-10929"},"PeriodicalIF":9.2,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Engineered Pseudomonas putida: a versatile chassis for lignin valorization†","authors":"Hong-Wei Zhu ,&nbsp;Chen Wang ,&nbsp;Hai-Yuan Jia ,&nbsp;Zhi-Hua Liu ,&nbsp;Bing-Zhi Li","doi":"10.1039/d5gc02312b","DOIUrl":"10.1039/d5gc02312b","url":null,"abstract":"<div><div>Lignin, a renewable aromatic polymer that is abundant in plant cell walls, represents a promising feedstock for producing high-value products. Lignin valorization offers a sustainable alternative to fossil-derived aromatics, playing a pivotal role in advancing the bioeconomy. However, the heterogeneous structure of lignin poses significant challenges for effective utilization. <em>Pseudomonas putida</em> has emerged as a premier microbial chassis for lignin bioconversion, owing to its innate capacity to catabolize aromatic compounds and its compatibility with advanced genetic engineering tools. This review explores the potential of <em>P. putida</em> as a versatile platform for lignin valorization, aligning with sustainable development goals. The unique metabolic and genetic advantages of <em>P. putida</em> in addressing lignin's structural complexity were summarized, along with a discussion of cutting-edge gene-editing technologies to enhance bioconversion efficiency. Furthermore, current advances, persistent challenges, and future directions were discussed by using <em>P. putida</em> chassis to maximize the synergy between synthetic biology and lignin valorization. By integrating current breakthroughs with emerging opportunities, this work underscores the transformative role of <em>P. putida</em>-driven biotechnologies in advancing a lignin-based circular bioeconomy.</div></div>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":"27 35","pages":"Pages 10316-10345"},"PeriodicalIF":9.2,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable base-mediated chemical upcycling of poly (propylene carbonate) to β-hydroxy sulfides and oxides","authors":"Nageswararao Moyilla ,&nbsp;Ganeshdev Padhi ,&nbsp;Nagaraju Barsu","doi":"10.1039/d5gc02451j","DOIUrl":"10.1039/d5gc02451j","url":null,"abstract":"<div><div>We present a cesium carbonate–mediated method to upcycle poly(propylene carbonate) (PPC) waste into β-hydroxy sulfides, selenides, and phenoxides <em>via</em> selective thermal depolymerization. The process tolerates diverse nucleophiles, including those from multilayer plastics. Mechanistic studies support a cesium aryl thiolate–driven nucleophilic degradation. The β-hydroxy products are easily functionalized, and the base is recyclable, offering a sustainable route for PPC valorization.</div></div>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":"27 35","pages":"Pages 10543-10549"},"PeriodicalIF":9.2,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integration of metabolic and bioprocess engineering for the production of β-ketoadipic acid from glucose and xylose by Pseudomonas putida","authors":"Gabriel M. Rubinstein ,&nbsp;Sekgetho C. Mokwatlo ,&nbsp;Louis Chirban ,&nbsp;Ariel R. Lepard ,&nbsp;Morgan A. Ingraham ,&nbsp;Kelsey J. Ramirez ,&nbsp;Hoon Choi ,&nbsp;Patrick O. Saboe ,&nbsp;Davinia Salvachúa ,&nbsp;Christopher W. Johnson ,&nbsp;Gregg T. Beckham","doi":"10.1039/d5gc01813g","DOIUrl":"10.1039/d5gc01813g","url":null,"abstract":"<div><div>β-Ketoadipic acid is a common intermediate in aerobic microbial aromatic catabolism that can be used as a monomer in performance-advantaged biopolymers. Here, we engineered <em>Pseudomonas putida</em> KT2440 to produce β-ketoadipate from glucose and xylose, the most prevalent carbohydrates derived from lignocellulosic polysaccharides. With the top-performing strain, <em>P. putida</em> GR038, we conducted bioprocess development using glucose and xylose as substrates in a 2 : 1 molar ratio to mimic lignocellulosic hydrolysate. Fed-batch cultivations achieved a titer of 65.8 g L⁻¹ and a rate of 0.69 g L⁻¹ h⁻¹, with a C-mol yield of 0.52. Application of adsorptive <em>in situ</em> product recovery further improved the effective titer to 92.0 g L⁻¹ and the rate to 0.83 g L⁻¹ h⁻¹, while also improving the downstream purity of β-ketoadipate from 88.3 wt% to 99.0 wt%. These results show promise towards industrial production of β-ketoadipate from lignocellulosic sugars.</div></div>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":"27 35","pages":"Pages 10673-10685"},"PeriodicalIF":9.2,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recycling of anhydride-cured epoxy resin-based carbon fiber-reinforced composites via a β-phenethyl alcohol/TBD catalytic system","authors":"Renlong Min ,&nbsp;Chenyu Zhang ,&nbsp;Haijuan Kong ,&nbsp;Shuo Liu ,&nbsp;Ziyao Peng","doi":"10.1039/d5gc02625c","DOIUrl":"10.1039/d5gc02625c","url":null,"abstract":"<div><div>Carbon fiber-reinforced polymers (CFRPs) are widely applied due to their outstanding mechanical properties. However, the intrinsic difficulty in recycling their thermoset resin matrix has led to serious environmental pollution and resource waste, becoming a major bottleneck hindering the sustainable development of CFRPs. In this study, a green and efficient chemical recycling strategy was developed by constructing a synergistic catalytic system composed of β-phenylethanol and 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD), enabling the rapid degradation of anhydride-cured epoxy-based CFRPs under mild conditions (190 °C, atmospheric pressure). By optimizing the mass ratio of the catalyst to the composite material [TBD : CFRP (wt : wt) = 1 : 3.27], nearly complete resin degradation (&gt;99%) was achieved within 2 hours. The reclaimed carbon fibers retained up to 93.2% of their original single-fiber tensile strength. X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) analyses confirmed that no significant deterioration occurred in the surface chemical functionalities or the degree of graphitization of the reclaimed fibers compared to the pristine ones. This work offers a simple, efficient, and environmentally friendly solution for the closed-loop recycling of thermoset-based CFRPs.</div></div>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":"27 35","pages":"Pages 10686-10698"},"PeriodicalIF":9.2,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lignin refinement based on efficient thermo-photo-catalysis of Ru–RuO2/TiO2-deep eutectic solvents","authors":"Hekun Ding ,&nbsp;Yue Pan ,&nbsp;Ao Zhan ,&nbsp;Jie Lv ,&nbsp;Yang Yang ,&nbsp;Zhiyuan Yang ,&nbsp;James H. Clark ,&nbsp;Qiang Yu","doi":"10.1039/d5gc02098k","DOIUrl":"10.1039/d5gc02098k","url":null,"abstract":"<div><div>Lignin refinement with high yields and high selectivities towards aromatic monomers under mild conditions is challenging. A thermo-photo-catalysis system based on deep eutectic solvents (DESs) and Ru–RuO₂/TiO₂ is described here and exhibits excellent oxidation depolymerization performance towards both model lignin compounds and coconut shell lignin under mild conditions. When using the β-O-4 model substrate, a 99.45% conversion rate was achieved with a phenol yield of 99.34% at 80 °C, 1 MPa O₂, 300 W visible light irradiation, and the presence of glycerol–choline chloride (Gly–ChCl) DES for 2 hours. More importantly, the raw material of coconut shell gave a phenol yield of 27.5% (w/w) due to the high productivity of 87.65% for authentic lignin in tetramethylammonium hydroxide–imidazole (TMAH–imidazole) DES at 100 °C for 3 hours. The Ru(100)–RuO₂(110) interfaces serve as active sites for substrate adsorption and the cleavage of C–O bonds, while the TiO₂ support enables efficient charge separation. During the catalytic process, light irradiation could be used to adjust the electronic structure of the catalyst surface to provide adequate active sites, and thermal energy could facilitate the separation and transport of photo-generated electron–hole pairs. A “win–win” situation of low energy consumption and high aromatic yield of lignocellulosic biomass refinement was achieved in this Ru–RuO₂/TiO₂-DES system.</div></div>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":"27 35","pages":"Pages 10808-10822"},"PeriodicalIF":9.2,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A CNT-connection strategy of coupling ZnS and a CoFe alloy in ORR/OER catalysts of rechargeable zinc–air batteries","authors":"Jiankun Li ,&nbsp;Shuhe Kang ,&nbsp;Huize Zhang ,&nbsp;Jincai Yang ,&nbsp;Pengfei Wan ,&nbsp;Zheng Li ,&nbsp;Shang Wu ,&nbsp;Yuzhi Sun ,&nbsp;Quanlu Yang","doi":"10.1039/d5gc02131f","DOIUrl":"10.1039/d5gc02131f","url":null,"abstract":"<div><div>The CNT-connection strategy was proposed to address the challenge of coupling diverse oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) active sites, which was critical for enhancing catalyst performance in rechargeable zinc–air batteries (ZABs). Through this strategy, a composite catalyst (FeCo-S/Z8-NC) was synthesized by integrating ZnS, a CoFe alloy and defective carbon planes <em>via</em> CNTs. Most active sites in FeCo-S/Z8-NC were encapsulated by CNTs, forming a protective shell that improved stability. FeCo-S/Z8-NC exhibited excellent bifunctional catalytic activity (ORR: <em>E</em>_1/2 = 0.86 V, OER: <em>E</em>_{<em>j</em>=10} = 1.52 V), which outperformed the commercial Pt/C + RuO₂ catalyst. When applied in ZABs, it delivered a high open-circuit voltage of 1.56 V, remarkable long-term charge–discharge stability (270 h), and outstanding power densities across a wide temperature range (−10 °C: 114.52 mW cm⁻², 25 °C: 162.82 mW cm⁻², and 60 °C: 229.49 mW cm⁻²). This work provided a feasible approach for developing efficient, low-cost and eco-friendly ORR/OER catalysts, promoting the sustainable application of ZABs.</div></div>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":"27 35","pages":"Pages 10755-10766"},"PeriodicalIF":9.2,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microwave-assisted pyrolysis of biomass and plastic wastes for hydrogen production","authors":"Yafei Shen","doi":"10.1039/d5gc03030g","DOIUrl":"10.1039/d5gc03030g","url":null,"abstract":"<div><div>The development of hydrogen energy is a key path to achieving carbon neutrality, providing zero-carbon and efficient clean energy solutions. Moreover, it can enhance energy security, promote green transformation in industry, transportation and other fields, and form new economic growth points. Microwave-assisted pyrolysis is an emerging thermochemical technology that has gained significant attention for efficiently converting hydrogen-rich resources to H₂ and high-value carbon materials. Microwave heating enhances the uniformity of heat distribution. Electromagnetic energy is converted to molecular kinetic energy in microwave heating. Dielectric loss is the phenomenon in which a dielectric material dissipates its electromagnetic energy in the form of heat or other forms. Dielectric loss is inherent to all materials and occurs naturally. This paper summarizes the research advances and key challenges in the microwave-assisted pyrolysis of biomass and plastic wastes for H₂ production. In general, microwave pyrolysis is the selective heating of feedstocks. The parameters of microwave pyrolysis include the reaction temperature, the reaction time, the supply of microwave power, the origin of the microwave feedstock, the particle size of the feedstock, the mixing ratios of feedstock, the dielectric constant of the feedstock, the feedstock pretreatment, and the use of catalysts and microwave absorbers. The effects of these parameters on H₂ production from microwave-assisted pyrolysis are clarified. H₂ production through microwave-assisted catalytic pyrolysis of waste plastic and biomass has advantages in terms of lower energy consumption and potential for reducing tar formation, thus increasing the yield and selectivity of H₂ compared with conventional pyrolysis. Key challenges include achieving uniform heating in large reactors due to variable dielectric properties of feedstocks and limited microwave penetration, which risks hot spots and inconsistent product quality. Feedstock variability in composition, moisture, and size complicates stable material flow and continuous feeding systems. Microwave generation demands costly equipment and optimized energy use to ensure economic viability. Maintaining consistent product quality is difficult due to uneven heating and feedstock diversity, alongside managing the carbon byproducts. Furthermore, the future directions in the microwave-assisted pyrolysis of each resource are discussed, thus promoting H₂ production toward high-efficiency, energy-saving and low-carbon development.</div></div>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":"27 35","pages":"Pages 10402-10422"},"PeriodicalIF":9.2,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Techno-economic assessment of bio-based routes for acrylic acid production†","authors":"Yash Bansod ,&nbsp;Mostafa Jafari ,&nbsp;Prashant Pawanipagar ,&nbsp;Kamran Ghasemzadeh ,&nbsp;Vincenzo Spallina ,&nbsp;Carmine D'Agostino","doi":"10.1039/d5gc01769f","DOIUrl":"10.1039/d5gc01769f","url":null,"abstract":"<div><div>This work evaluates the techno-economic performance of biobased and conventional routes for producing acrylic acid, a key industrial chemical. Four pathways were assessed at 79.2 ktonnes per year production capacity: three glycerol-based routes (<em>via</em> allyl alcohol, lactic acid, and acrolein) and the conventional propylene-based route. Key performance indicators related to acrylic acid yield, energy consumption, CO₂ emissions, and raw material usage, as well as capital expenditure, OPEX, profitability, and payback period were compared. Among the glycerol-based routes, the lactic acid intermediate route had the highest carbon conversion efficiency (80%), followed by the alcohol intermediate route (74%). From an environmental perspective, propylene-based and glycerol-based allyl alcohol intermediate routes had the highest direct CO₂ emissions, whereas the glycerol-based acrolein intermediate route had the lowest CO₂ emissions. Regarding costs, the glycerol-based allyl alcohol route had the highest capital investment ($247.7 million), while the acrolein route required the lowest ($173.6 million). Moreover, the glycerol-based acrolein intermediate route was the only profitable pathway ($21.6 million annually) but with a commercially unattractive payback period of 11.6 years. Sensitivity analyses revealed that the propylene-based route was the most vulnerable to changes in raw material prices, whereas the acrolein intermediate route was the most resilient to price fluctuations in raw material and utilities, maintaining profitability until a 25% increase in raw material prices. The findings suggest that the renewable glycerol-based acrolein intermediate route can be a promising alternative to conventional acrylic acid production, supporting a transition towards a more sustainable bio-based chemical industry.</div></div>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":"27 35","pages":"Pages 10612-10632"},"PeriodicalIF":9.2,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research progress on photocatalytic production of hydrogen peroxide over MOFs and COFs","authors":"Yang An ,&nbsp;Tianyan Cai ,&nbsp;Weiyi Jiang ,&nbsp;Tao Lei ,&nbsp;Huan Pang","doi":"10.1039/d5gc02617b","DOIUrl":"10.1039/d5gc02617b","url":null,"abstract":"<div><div>Metal–organic frameworks (MOFs) and covalent organic frameworks (COFs) have shown great potential in the photocatalytic synthesis of hydrogen peroxide (H₂O₂), which is an important green oxidant extensively used in industrial, environmental and energy applications. Compared to the traditional anthraquinone process, photocatalytic H₂O₂ production is gaining attention for its eco-friendly, sustainable and efficient characteristics. This review summarized the latest research progress on MOF/COF-based photocatalysts for H₂O₂ synthesis, focusing on their catalytic mechanisms, material design strategies and methods for performance optimization. Functionalization, composite construction and derived materials based on MOFs have been proven effective in enhancing photocatalytic activity, while COFs exhibit superior performance due to their tunable electronic structures and high charge carrier mobility. Additionally, the current challenges and future prospects of MOF/COF-based photocatalysts for H₂O₂ production are discussed, aiming to facilitate their industrial application.</div></div>","PeriodicalId":78,"journal":{"name":"Green Chemistry","volume":"27 35","pages":"Pages 10478-10509"},"PeriodicalIF":9.2,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}