Green Chemical Engineering最新文献

{"title":"Microalgae cultivation in photobioreactors: sustainable solutions for a greener future","authors":"","doi":"10.1016/j.gce.2023.10.004","DOIUrl":"10.1016/j.gce.2023.10.004","url":null,"abstract":"<div><p>Microalgae cultivation in photobioreactors (PBRs) has emerged as a promising and sustainable approach to address various environmental and energy challenges, offering a multitude of benefits across diverse applications. Recent developments in microalgae cultivation in photobioreactors have contributed substantially to the development and optimization of sustainable bioprocesses. This review presents a comprehensive analysis of recent innovations and breakthroughs in the field of microalgae cultivation, with a specific focus on their application in photobioreactors, aimed at paving the way for a greener future. This study in-depth examines the advantages of microalgae cultivation in photobioreactors, concentrating on its effectiveness in wastewater treatment, CO₂ bioremediation, and the production of biofuels and high-value products. The review evaluates the effects of light, solar irradiation, temperature, nitrogen and phosphorus concentrations in culture media, CO₂ concentrations, and pH on microalgae growth performance, including specific growth and biomass productivity. The study also examines open systems like unstirred ponds, raceway ponds, and circular ponds and closed systems like horizontal tubular, vertical bubble-column, airlift, flat panel, and plastic-bag photobioreactors, comparing their pros and cons. To optimize microalgae cultivation, key factors in photobioreactor design, including photosynthetic efficiencies, light/dark (L/D) cycles, CO₂ concentrations, mass transfer, hydrodynamics behavior, and pH, are extensively investigated. In addition, the review outlines recent developments in large-scale photobioreactors and highlights the challenges and opportunities associated with photobioreactor scale-up and design parameter optimization, including genetic engineering and economic feasibility. This article is a vital resource for researchers, engineers, and industry professionals seeking sustainable bioprocesses and the application of microalgae-based technologies.</p></div>","PeriodicalId":66474,"journal":{"name":"Green Chemical Engineering","volume":"5 4","pages":"Pages 418-439"},"PeriodicalIF":9.1,"publicationDate":"2023-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666952823000584/pdfft?md5=83b15a630bd327c6e3509a98c9c1fdba&pid=1-s2.0-S2666952823000584-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136009504","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":"An antistatic agent based on polyionic liquid applied to nylon 6","authors":"","doi":"10.1016/j.gce.2023.10.001","DOIUrl":"10.1016/j.gce.2023.10.001","url":null,"abstract":"<div><p>In order to improve the electrical conductivity of nylon 6 (PA6) and avoid misfires and explosions caused by static charge accumulation, a quaternary ammonium salt polyionic liquid (PIL) antistatic agent was synthesized in this paper. The surface resistance of PA6 was reduced to 10⁸ Ω with the addition of 2 wt% antistatic agent, and the mechanical properties and aging resistance of the substrate were improved. Meanwhile, the morphology and crystallinity of PIL/PA6 composites were further characterized by scanning electron microscope (SEM), energy dispersion spectrometer (EDS) and X-ray diffraction (XRD). It is worth noting that the quaternary ammonium salt polyionic liquid antistatic agent synthesized in this paper has the advantages of excellent antistatic effect, durability, low cost, and simple reaction condition, so it has a broad application prospect in the antistatic aspect of PA6.</p></div>","PeriodicalId":66474,"journal":{"name":"Green Chemical Engineering","volume":"5 3","pages":"Pages 399-407"},"PeriodicalIF":9.1,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666952823000559/pdfft?md5=5cd81af0752e54ad2e238fe0ffd1a37b&pid=1-s2.0-S2666952823000559-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135760556","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":"One-step selective separation and efficient recovery of valuable metals from spent lithium batteries by phosphoric acid-based deep eutectic solvent","authors":"","doi":"10.1016/j.gce.2023.10.002","DOIUrl":"10.1016/j.gce.2023.10.002","url":null,"abstract":"<div><p>With more and more lithium-ion batteries (LIBs) being put into production and application, precious metals such as lithium and cobalt are scarce, so it is imminent to recover various strategic metal resources from spent LIBs. Meanwhile, the complex and difficult problem of separating and recovering metals from leaching solutions has been an urgent question that needs to be resolved. In this work, a phosphoric acid-based deep eutectic solvent (DES) was developed for extracting metals from spent LIBs and one-step selectively separating and efficiently recovering transition metal. The prepared DES shows excellent extraction performance for Li (100%) and Co (92.8%) at 100 °C. In addition, the extraction system can effectively separate and precipitate Co through its own components, avoiding the introduction of new precipitants and the destruction of the original composition structure of DES. This also contributes to the good cycle stability of the extraction system with excellent extraction performance for Li (94.3%) and Co (80.8%) after 5 cycles. This work proposes a green method for one-step selectively separating and recovering valuable metals from spent LIBs.</p></div>","PeriodicalId":66474,"journal":{"name":"Green Chemical Engineering","volume":"5 3","pages":"Pages 390-398"},"PeriodicalIF":9.1,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666952823000560/pdfft?md5=0384af4365923b7446f83f4770bfdeab&pid=1-s2.0-S2666952823000560-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135706578","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":"Prospective life cycle assessment of CO2 conversion by photocatalytic reaction","authors":"","doi":"10.1016/j.gce.2023.10.003","DOIUrl":"10.1016/j.gce.2023.10.003","url":null,"abstract":"<div><p>CO₂ conversion is gradually seen as a better way for society to effectively use carbon sources and avoid climate crisis associated with fossil CO₂ emissions. And the decision to deploy CO₂ technology scale should be relied on its environmental impact. In this work, life cycle assessment model evaluates the environmental performance of CO₂ conversion by photocatalytic reaction process with two different catalysts (NiAl-LDH and Co-ZIF-9). Six impact categories considered in this analysis, including climate change, acidification potential, depletion of abiotic resources, eutrophication potential, ozone layer depletion potential, and photochemical oxidation potential. Results indicated that CO₂ conversion with Co-ZIF-9 photocatalyst has a better environmental impact than the NiAl-LDH photocatalyst route. Moreover, the Co-ZIF-9 catalyst scenario also has a lower total environmental burden than the conventional CO production route. Sensitivity analysis shows that recycle performance of the catalyst is highly sensitive to the production process in two scenarios. This study could provide a framework for robust decisions in CO₂ conversion by photocatalytic reaction, which is useful for policymakers to decide the feasibility of industrialization.</p></div>","PeriodicalId":66474,"journal":{"name":"Green Chemical Engineering","volume":"5 3","pages":"Pages 383-389"},"PeriodicalIF":9.1,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666952823000572/pdfft?md5=611419962c54c9a712eee32c746320e6&pid=1-s2.0-S2666952823000572-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135660808","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":"Exploring the thermophysical properties of natural deep eutectic solvents for gas capture applications: a comprehensive review","authors":"","doi":"10.1016/j.gce.2023.09.003","DOIUrl":"10.1016/j.gce.2023.09.003","url":null,"abstract":"<div><p>With the intensifying challenge of global warming driven largely by anthropogenic activities, effective greenhouse gas capture techniques are critical. This paper focuses on the role of deep eutectic solvents (DES) as promising agents for such capture at the source. We review the key DES-based methods for greenhouse gas capture, drawing conclusions from a thorough analysis of the existing literature. In particular, we examine the effect of DES structure on gas solubilities and explore the mechanism of gas solubility in DES through molecular simulation. We present a synthesis of state-of-the-art results in this area, assessing the potential of DES as an alternative to current industrial gas capture methods. Furthermore, we propose future research directions for the design of novel DES tailored to more specific applications.</p></div>","PeriodicalId":66474,"journal":{"name":"Green Chemical Engineering","volume":"5 3","pages":"Pages 307-338"},"PeriodicalIF":9.1,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666952823000468/pdfft?md5=9306b430a9627778ba1e10434079c304&pid=1-s2.0-S2666952823000468-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135389599","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":"The effect of the concentration of plastic waste on the formation of reaction products of the Ti–PET system","authors":"","doi":"10.1016/j.gce.2023.09.002","DOIUrl":"10.1016/j.gce.2023.09.002","url":null,"abstract":"<div><p>The paper presents research results of the synthesis, phase composition, and structure of products obtained by highly exothermic reactions between Ti and C₁₀H₈O₄ mixture components, depending on the plastic waste concentration and Ti powder dispersiveness, density of initial samples, and synthesis medium. The dependence of the phase composition and structure of the synthesis products on the concentration of the polymer (plastic) component in the initial Ti -PET (C₁₀H₈O₄) system was found. When the plastic waste content is 20 wt% to 25 wt%, synthesis products contain TiC_0.5O_0.5–TiC_0.6–0.75 particle agglomerates. Further growth in the polyethylene terephthalate content from 30 wt% to 45 wt% leads to the formation of synthesis products consisting of titanium carbide (TiC_0.6–1.0). The gaseous byproduct composition of the exothermic reaction is investigated for the Ti–C₁₀H₈O₄ mixture composition. It is found that the gaseous by-product mostly contains hydrogen and carbon monoxide as well as impurities of different hydrocarbons (methane, acetylene, ethane, ethene) and carbon dioxide. The maximum adiabatic temperature of the gas combustion temperature is 2080 ^oC, which demonstrates the possibility of using gas as a fuel for energy generation devices. Based on the data obtained, it is possible to create a basis for a new plastic waste technology to fabricate carbide-containing materials.</p></div>","PeriodicalId":66474,"journal":{"name":"Green Chemical Engineering","volume":"5 3","pages":"Pages 374-382"},"PeriodicalIF":9.1,"publicationDate":"2023-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666952823000456/pdfft?md5=758c297778fcd3f6140754b6298e4eaf&pid=1-s2.0-S2666952823000456-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135248192","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":"Furan-derived Schiff base covalent adaptable thermosets with recyclability and anti-flammability","authors":"","doi":"10.1016/j.gce.2023.08.005","DOIUrl":"10.1016/j.gce.2023.08.005","url":null,"abstract":"<div><p>Conventional thermosetting polymers, mostly derived from nonrenewable petroleum resources, are not reprocessable and recyclable due to their highly cross-linked three-dimensional networks and face the disadvantage of high flammability. To solve these issues, in this study, we synthesized a novel Schiff base covalent adaptable thermoset from a furan-derived tri-aldehyde monomer (TMFP) and a furan-derived di-amine monomer (DFDA). The as-prepared TMFP-DFDA-Vitrimer exhibited superior anti-flammability with a high limiting oxygen index (LOI) of 35.0% and a UL-94 V-0 rating, which was attributed to the excellent charring ability. Additionally, TMFP-DFDA-Vitrimer could also be conveniently recycled by chemical decomposition under a mixed hydrochloric acid/tetrahydrofuran (HCl/THF) solution. After recycling for 5 times, the thermal, mechanical, and flame retardant properties of the recycled TMFP-DFDA-Vitrimer retained almost unchanged compared to the original one. This work provides a prime instance to develop advanced thermosetting polymers from abundant furan-based compounds.</p></div>","PeriodicalId":66474,"journal":{"name":"Green Chemical Engineering","volume":"5 3","pages":"Pages 364-373"},"PeriodicalIF":9.1,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666952823000432/pdfft?md5=ab3c4a3763bbffce1248e8c143770398&pid=1-s2.0-S2666952823000432-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42960927","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":"Progress on gas-solid phase photoreactor and its application in CO2 reduction","authors":"","doi":"10.1016/j.gce.2023.09.001","DOIUrl":"10.1016/j.gce.2023.09.001","url":null,"abstract":"<div><p>The burgeoning field of photocatalytic reduction of CO₂ has emerged as a remarkable promising solution to address some of the most pressing global energy and environmental issues which we face today. Researchers around the global have been striving to augment the efficiency of CO₂ photocatalytic reduction, employing strategies that range from modifying the fundamental properties of photocatalysts to suppress the electron-hole recombination, optimizing reaction conditions to achieve the highest yield, and conceptualizing and constructing photoreactors to improve the adsorption process. Among these factors, the photoreactor plays a critical role in enhancing the overall photocatalytic efficiency. Understanding the various types of photoreactors and their operational dynamic can significantly influence the experimental design, thus guiding the data collecting and analysis. Compared to the solid-liquid phase, gas-solid phase photocatalytic reduction of CO₂ is gaining recognition for its potential advantages, such as rapid molecular diffusion rates, adjustable CO₂ concentrations, and uniform and sufficient light exposure. Nonetheless, the currently reported gas-solid phase photoreactors are still in their infancy. In this review, we dissect the underlying mechanism of photocatalytic CO₂ reduction and the performance evaluation criteria of photoreactors, and review the development process of gas-solid phase photoreactors. Furthermore, we explore the evolution of gas-solid phase photoreactors, elucidating their growth trajectory and future possibilities. We present a comprehensive classification of gas-solid phase photoreactors, offering a new insight into their design and functionality, summarizing their strengths and inevitable limitations. Finally, we provide a forward-looking perspective on the future developmental prospects of carbon neutrality.</p></div>","PeriodicalId":66474,"journal":{"name":"Green Chemical Engineering","volume":"5 3","pages":"Pages 290-306"},"PeriodicalIF":9.1,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666952823000444/pdfft?md5=38a19241f7f886795338d565aa3b7d56&pid=1-s2.0-S2666952823000444-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48773086","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":"Understanding the interfacial properties of benzene alkylation with 1-dodecene catalyzed by immobilized chloroaluminate ionic liquids using molecular dynamics simulation","authors":"Weizhong Zheng,&nbsp;Jialei Sha,&nbsp;Weizhen Sun,&nbsp;Ling Zhao","doi":"10.1016/j.gce.2022.07.009","DOIUrl":"10.1016/j.gce.2022.07.009","url":null,"abstract":"<div><p>Benzene alkylation catalyzed by immobilized ionic liquids (ILs) on solid carriers is considered as a heterogeneous reaction, in which the interfacial properties play an important role. Hence, the interfacial characteristics between benzene/1-dodecene mixture and immobilized chloroaluminate ILs with different alkyl chain length on the silica substrate were investigated by molecular dynamics simulation. The grafted ILs can obviously promote the enrichment of benzene near the interface, leading to a higher ratio of benzene to dodecene, and the interfacial width increases slightly with increased alkyl chain of grafted cations. At the same time, the grafted cations can also enhance the benzene diffusion and suppress the dodecene diffusion at the interface, which probably helps to inhibit the inactivation of catalysts. This work provides deeply insights into the rational design of novel immobilized ILs catalysts for the benzene alkylation.</p></div>","PeriodicalId":66474,"journal":{"name":"Green Chemical Engineering","volume":"4 3","pages":"Pages 338-345"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47727409","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":"OFC: Outside Front Cover","authors":"","doi":"10.1016/S2666-9528(23)00026-2","DOIUrl":"https://doi.org/10.1016/S2666-9528(23)00026-2","url":null,"abstract":"","PeriodicalId":66474,"journal":{"name":"Green Chemical Engineering","volume":"4 3","pages":"Page OFC"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50189975","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}