Green Carbon最新文献

{"title":"Enhanced removal and valorization of CO2-adsorbent monoethanolamine by microalgae for green biomanufacturing","authors":"Zhiyong Liu ,&nbsp;Nahui Hao ,&nbsp;Chunqing He ,&nbsp;Yuyong Hou ,&nbsp;Tingfeng Cheng ,&nbsp;Yinghao Wang ,&nbsp;Qingling Liu ,&nbsp;Qian Shen ,&nbsp;Maliheh Safavi ,&nbsp;Fangjian Chen ,&nbsp;Zhihua Fan ,&nbsp;Lei Zhao","doi":"10.1016/j.greenca.2025.01.003","DOIUrl":"10.1016/j.greenca.2025.01.003","url":null,"abstract":"<div><div>Monoethanolamine (MEA) is a frequently utilized absorbent for CO₂ capture in many settings, enabling biomanufacturing using carbon as the resource. Nevertheless, evidence indicates that MEA is toxic to biological systems, and its emissions can exacerbate ecosystem pollution. Therefore, it is imperative that disposal or valorization measures be implemented for effective green biomanufacturing with MEA as the absorbent. This study examined the removal of MEA by <em>Haematococcus pluvialis</em> (<em>H. pluvialis</em>), an astaxanthin-rich microalgae, and its effects on microalgal cells and related mechanisms. Approximately half of the initial MEA was metabolized by <em>H. pluvialis</em>, with the resulting metabolic intermediates including acetyl-CoA. The genes involved in MEA utilization exhibited a significant increase in expression, signifying a pivotal advancement in our understanding of its potential as a nutrient for microalgae. Moreover, the exposure of <em>H. pluvialis</em> to MEA resulted in notable alterations in cellular components, including a 21.7% increase in lipid content and a 27.8% increase in carbohydrate content. Notably, there was a 1.49-fold increase in astaxanthin content, which was accompanied by notable changes in cell morphology. In addition to the increase in astaxanthin production, the antioxidant system was activated to counteract the adverse effects of MEA-induced oxidative stress. Furthermore, enhanced biosynthesis of both carotenoids and fatty acids directly contributed to the elevated cellular astaxanthin levels achieved through MEA metabolism by <em>H. pluvialis</em>. These findings offer valuable insights into the treatment of CO₂ absorbents using microalgae while simultaneously producing high-value and healthy products, which may prove beneficial for the development of sustainable solutions for green biomanufacturing.</div></div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"3 2","pages":"Pages 196-207"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144492014","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":"Highly dispersed Cu0-Cuδ+/MgO-FeOx catalyst for the synergistic enhancement of the hydrogenation of furfural","authors":"Shuaishuai Wang ,&nbsp;Lingyu Jia ,&nbsp;Shanshan Dang ,&nbsp;Mingkun Zhang ,&nbsp;Tianliang Lu ,&nbsp;Xiang Gao ,&nbsp;Weifeng Tu ,&nbsp;Zhenzhou Zhang","doi":"10.1016/j.greenca.2024.09.008","DOIUrl":"10.1016/j.greenca.2024.09.008","url":null,"abstract":"<div><div>Cu-based catalysts are advantageous for selectively catalyzing the hydrogenation of the C<img>O bonds in furfural (FF). Nevertheless, debates are ongoing regarding the identification of active sites. FeCu_<em>x</em>Mg catalysts were prepared using a hydrotalcite precursor. During the early stages of the reaction, the selective hydrogenation activity of the C<img>O bond exhibited a volcano-shaped trend with increasing Cu content. FeCu_0.15Mg showed the highest hydrogenation activity among all catalysts examined. <em>In-situ</em> X-ray diffraction (XRD), <em>in-situ</em> DRIFT, X-ray photoelectron spectroscopy (XPS) and other analytical techniques confirmed that Cu⁰-Cu^δ+ sites assume a predominant role in catalytic reactions. At the optimal Cu/Fe ratio, the oxygen vacancies generated by FeO_<em>x</em> facilitated the activation of the FF molecules. The highly dispersed Cu⁰-Cu^δ+ sites served a crucial function in the activation of H₂ and the rapid formation of reaction intermediates, significantly accelerating the reaction rate and process of FF hydrogenation.</div></div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"3 2","pages":"Pages 130-138"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144492019","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":"Photo-Fenton catalyst embedded in photothermal aerogel for efficient solar interfacial water evaporation and purification","authors":"Xiaoyun Hu ,&nbsp;Jianhua Zhou ,&nbsp;Xiaojiang Mu ,&nbsp;Chengpeng Qiu ,&nbsp;Meng Kang ,&nbsp;Zhixiang Zhang ,&nbsp;Jie Gao ,&nbsp;Jing Liu ,&nbsp;Lei Miao","doi":"10.1016/j.greenca.2024.10.003","DOIUrl":"10.1016/j.greenca.2024.10.003","url":null,"abstract":"<div><div>Solar steam generation is used for the production of clean water through evaporation. However, during evaporation, high-boiling organic compounds tend to concentrate in the mother liquor, whereas low-boiling organic compounds evaporate with the steam. In this study, a strategy for full-spectrum solar utilization, in which solar steam generation is coupled with photo-Fenton catalysis, was demonstrated for the production of clean water while treating complex wastewater containing high concentrations of organic pollutants. A highly efficient Fenton catalyst, PB/rGO/PPy powder, was developed by integrating Prussian blue (PB), polypyrrole (PPy), and reduced graphene oxide (rGO). The catalyst offers functionality in Fenton catalysis, photothermal conversion, and photogenerated charge transfer channels. It can degrade 95.2% of methyl orange (MO) in 20 min, with a degradation rate constant of 0.251 min⁻¹. Impressively, a PB/rGO/PPy/PVA composite aerogel was created using porous and water-absorbent polyvinyl alcohol (PVA) as a skeleton, where the degradation ability of MO in both deionized water and wastewater reached 100% under 1-sun irradiation, along with an evaporation rate of 1.62 kg m⁻² h⁻¹. This integrated aerogel evaporator can be utilized for producing clean water and treating wastewater containing organic pollutants, which may open new avenues for green technologies with high solar energy utilization efficiencies.</div></div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"3 2","pages":"Pages 160-169"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144492023","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":"New horizons in lignin-first strategies for upgrading lignocellulose","authors":"Fuyan Kang ,&nbsp;Houjuan Qi ,&nbsp;Zhanhua Huang ,&nbsp;Jinguang Hu","doi":"10.1016/j.greenca.2024.11.004","DOIUrl":"10.1016/j.greenca.2024.11.004","url":null,"abstract":"","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"3 2","pages":"Pages 221-223"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144492017","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":"Harnessing aromatic properties for sustainable bio-valorization of lignin derivatives into flavonoids","authors":"Si-Yu Zhu ,&nbsp;Na Li ,&nbsp;Zhi-Hua Liu ,&nbsp;Ying-Jin Yuan ,&nbsp;Bing-Zhi Li","doi":"10.1016/j.greenca.2024.11.005","DOIUrl":"10.1016/j.greenca.2024.11.005","url":null,"abstract":"<div><div>Lignin represents the most abundant renewable aromatic source, while flavonoids are aromatic natural compounds with various health-promoting properties and superior biological activities. The bioconversion of lignin derivatives into flavonoids holds promising potential for both lignin valorization and flavonoid synthesis. In this review, we prospect sustainable, atom-economic functionalization routes from lignin-derived aromatics to flavonoids by leveraging lignin’s inherent aromaticity. The representative flavonoid biosynthesis routes had first been elaborated from lignin derivatives in detail. The functionalization reactions involved in incorporating lignin derivatives into flavonoid structure were summarized to promote lignin bioconversion and yield flavonoids with desirable properties. Harnessing the powerful engineering strategies, such as synthetic biology, machine learning, metabolic regulation, boost the flavonoid production in microbial cell factories, enhancing lignin valorization. Overall, lignin functionalization routes for flavonoid biosynthesis hold promise to achieve the feasibility of lignin valorization and the production of flavonoids, contributing significantly to the sustainable bioeconomy.</div></div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"3 2","pages":"Pages 172-195"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144492025","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":"Electrochemical conversion of biomass derivatives to value-added chemicals: A review","authors":"Yusrin Ramli ,&nbsp;Virdi Chaerusani ,&nbsp;Ziyuan Yang ,&nbsp;Rui Yang ,&nbsp;Juan Zhang ,&nbsp;Abuliti Abudula ,&nbsp;Guoqing Guan","doi":"10.1016/j.greenca.2024.10.004","DOIUrl":"10.1016/j.greenca.2024.10.004","url":null,"abstract":"<div><div>Countless efforts have been dedicated to shifting from fossil- to bio-based resources, including the conversion of biomass derivatives into high-value building-block chemicals using various catalytic processes. In particular, electrochemical conversion is a remarkable process when considering biomass as a renewable resource and when applying renewable energy. As typical promising derivatives, 5-hydroxymethylfurfural, methanol, and sugars have been extensively investigated to date on a laboratory scale via electrochemical conversion to obtain valuable chemicals such as 2,5-furan dicarboxylic acid, 2,5-di(hydroxymethyl)furan, formic acid, gluconic acid, and xylitol. This review focuses on the electroconversion of biomass derivatives to high-value-added products. In particular, the catalyst activity, stability, and selectivity for the desired products, reaction mechanisms, and operating conditions of the electrocatalytic process are summarized and discussed. The review also addresses the challenges in the development of electrocatalysts for the electroconversion of biomass derivatives while avoiding side reactions to reduce the separation and purification processes. This study is expected to guide future developments in this field.</div></div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"3 2","pages":"Pages 113-129"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144492018","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":"Pyrene-based molecular contacts inspire perovskite solar cells","authors":"Tingting Zhu ,&nbsp;Zhaoning Song ,&nbsp;Yanfa Yan ,&nbsp;Chongwen Li","doi":"10.1016/j.greenca.2024.11.007","DOIUrl":"10.1016/j.greenca.2024.11.007","url":null,"abstract":"","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"3 2","pages":"Pages 170-171"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144492024","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":"Modulating the electronic state of Cu over Cu/ZnO/SBA-15 catalysts for boosting methanol synthesis from CO2","authors":"Kun Jiang,&nbsp;Yunzhao Xu,&nbsp;Fenghai Cao,&nbsp;Baozhen Li,&nbsp;Xiaoyang Xu,&nbsp;Weihao Wang,&nbsp;Yu Tang,&nbsp;Lizhi Wu,&nbsp;Li Tan","doi":"10.1016/j.greenca.2024.11.003","DOIUrl":"10.1016/j.greenca.2024.11.003","url":null,"abstract":"<div><div>Methanol synthesis <em>via</em> CO₂ conversion is a “green carbon” route for mitigating the greenhouse effect and recycling carbon resources. However, despite the widespread use of copper-based systems for methanol synthesis in recent decades, the chemical state of the active Cu species remains controversial. In this study, various Cu/ZnO/SBA-15 catalysts possessing different interfacial structures were engineered by atomic layer deposition (ALD). The optimized Cu/50c-ZnO/SBA-15 afforded the highest mass-specific methanol formation rate of 211.7 g_MeOH·kg_cat⁻¹·h⁻¹ under the conditions of 250 °C and 3.0 MPa. In-depth characterizations indicated that the electronic state of Cu could be modulated by engineering the interfacial structures of the Cu/ZnO series catalysts, and the Cu cation sites (Cu^δ+ and Cu⁺) are the active centers for methanol synthesis reaction rather than the Cu⁰ sites. Mechanistic analysis demonstrated that HCO₃* and CO₃* were slowly transformed to HCOO* and further hydrogenated to methanol following the formate-methoxy intermediate route. This work provides an improved understanding of the origin of the methanol synthesis active centers and emphasizes the potential for fabricating next-generation Cu-based catalysts <em>via</em> ALD.</div></div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"3 2","pages":"Pages 139-147"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144492020","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":"Hierarchically structured macro-mesoporous carbon catalysts for saccharification of cellulose","authors":"Shaohua She ,&nbsp;Luh Putu Pitrayani Sukma ,&nbsp;Mingming Peng ,&nbsp;Hisakazu Shirai ,&nbsp;Yuto Suzuki ,&nbsp;Kenji Kamiya ,&nbsp;Eika W. Qian","doi":"10.1016/j.greenca.2024.11.006","DOIUrl":"10.1016/j.greenca.2024.11.006","url":null,"abstract":"<div><div>Hierarchically structured macro-mesoporous carbon catalysts were synthesized using dual templates of poly(methyl methacrylate) (PMMA) and Pluronic-123 to enhance cellulose saccharification. Characterizations conducted through scanning electron microscopy (SEM), X-ray diffraction (XRD), N₂ adsorption-desorption isotherms, Fourier transform infrared (FT-IR) spectroscopy, and titration techniques confirmed high surface areas and specific pore size distributions, with macropores ranging from 78.3 to 251 nm and mesopores around 2.43–6.23 nm. An optimal PMMA-to-Tetraethyl orthosilicate (TEOS) ratio of 1:1.6 facilitated the highest cellulose conversion rate of 59.3% and a glucose yield of 22.1%. Notably, the medium-sized macropore catalyst, MMCS60-M, outperformed its purely mesoporous counterpart, with conversion rates and glucose yields of 80.8% and 45.5%, respectively. These results suggest the importance of a tailored pore architecture to enhance the accessibility of acid sites and facilitate effective mass transport, which is beneficial for optimizing saccharification processes.</div></div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"3 2","pages":"Pages 148-157"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144492021","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":"The canalization in domesticated yeast: Metabolic traits develop robustness against Hsp90 stress during the evolutionary process","authors":"Xiao Zhang ,&nbsp;Changqing Liu ,&nbsp;Yongqiang Gao ,&nbsp;Lijuan Liu ,&nbsp;Haibo Zhang","doi":"10.1016/j.greenca.2024.11.002","DOIUrl":"10.1016/j.greenca.2024.11.002","url":null,"abstract":"","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"3 2","pages":"Pages 218-220"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144492016","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}