ACS Sustainable Chemistry & Engineering最新文献

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An Integrated Chemical and Biological Approach for Poly(ethylene terephthalate) Depolymerization and Biopolyol Production 聚对苯二甲酸乙二醇酯解聚和生物多元醇生产的化学与生物综合方法
IF 8.4 1区 化学
ACS Sustainable Chemistry & Engineering Pub Date : 2024-07-10 DOI: 10.1021/acssuschemeng.3c08094
Anamika Kushwaha, Lalit Goswami, Beom Soo Kim
{"title":"An Integrated Chemical and Biological Approach for Poly(ethylene terephthalate) Depolymerization and Biopolyol Production","authors":"Anamika Kushwaha, Lalit Goswami, Beom Soo Kim","doi":"10.1021/acssuschemeng.3c08094","DOIUrl":"https://doi.org/10.1021/acssuschemeng.3c08094","url":null,"abstract":"In this study, we established an innovative and integrated chemical/biological methodology for the complete poly(ethylene terephthalate) (PET) degradation and biopolyol production using cerium–iron oxide nanoparticles (CeFeNPs). Initially, three nanoparticles, i.e., CeNPs, FeNPs, and CeFeNPs, were synthesized and evaluated for PET glycolysis. CeFeNPs demonstrated the best catalytic performance for PET depolymerization to bis(2-hydroxyethyl) terephthalate (BHET) and were further recovered from the PET depolymerized slurry to be reutilized again. BHET was further biodegraded using the hydrocarbonoclastic bacterium <i>Pseudomonas aeruginosa</i> PR3 under the batch modes using a shake flask and a stirred tank bioreactor. To elucidate the fate of BHET biodegradation under aerobic conditions, identification of various BHET degraded metabolites was carried out using liquid chromatography–mass spectrometry analysis. The strain could produce an extracellular diol synthase enzyme, which transforms oleic acid into the biopolyol, 7,10-dihydroxy-8(<i>E</i>)-octadecenoic acid (DOD). CeFeNPs were further supplemented to enhance DOD production via whole cell and cell-free approaches.","PeriodicalId":25,"journal":{"name":"ACS Sustainable Chemistry & Engineering","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141578129","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}
引用次数: 0
Biodegradable and Structure-Tunable Poly(lactic acid) Foam Prepared by Temperature-Induced CO2 Foaming 通过温度诱导二氧化碳发泡制备可生物降解且结构可调的聚乳酸泡沫塑料
IF 8.4 1区 化学
ACS Sustainable Chemistry & Engineering Pub Date : 2024-07-10 DOI: 10.1021/acssuschemeng.4c03229
Kesong Yu, Junji Hou, Dongxu Tian, Xiaoli Zhang, Jingbo Chen
{"title":"Biodegradable and Structure-Tunable Poly(lactic acid) Foam Prepared by Temperature-Induced CO2 Foaming","authors":"Kesong Yu, Junji Hou, Dongxu Tian, Xiaoli Zhang, Jingbo Chen","doi":"10.1021/acssuschemeng.4c03229","DOIUrl":"https://doi.org/10.1021/acssuschemeng.4c03229","url":null,"abstract":"Poly(lactic acid) (PLA) foam has good application prospects in the fields of cushioning, heat insulation, and tissue engineering. However, foaming of PLA is still challenging owing to its crystallization characteristics and low melt strength. In this work, we adopted a temperature-induced CO<sub>2</sub> foaming method to fabricate fully biodegradable and structure-tunable PLA foams. PLA sheets were first soaked in a CO<sub>2</sub> atmosphere at high temperatures (80–120 °C) to achieve a short saturation time and basically amorphous state. Next, PLA sheets were cooled to below 10 °C and CO<sub>2</sub> was decompressed to avoid foaming. Finally, foaming was triggered by heating the CO<sub>2</sub>-rich PLA sheets to 40–100 °C. As a result, PLA could be foamed similar to amorphous polymers, whose foaming behavior is easily regulated. The fabricated PLA foams with customizable cellular structures had an expansion ratio of 2–10. At low foaming temperatures, the foams exhibited a skin–core cellular structure with large cells near the skin layer and small cells in the core layer. With increasing temperature, the prepared foams had a relatively uniform cellular structure. The prepared PLA foam with the skin–core cellular structure exhibited unique compression properties. During compression, large cells in the skin layer easily deformed to absorb energy, while small cells in the core layer remained unchanged to maintain structural stability.","PeriodicalId":25,"journal":{"name":"ACS Sustainable Chemistry & Engineering","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141578062","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}
引用次数: 0
Photoinduced Selective Hydrogenation of Methyl Eleostearate to Monounsaturated Fatty Acid Methyl Esters 光诱导榄香脂酸甲酯选择性氢化成单不饱和脂肪酸甲酯
IF 8.4 1区 化学
ACS Sustainable Chemistry & Engineering Pub Date : 2024-07-09 DOI: 10.1021/acssuschemeng.4c01076
Yang Hang, Lieshun Cai, Bingbing Shi, Taoshan Jiang, Zhongkai Wang
{"title":"Photoinduced Selective Hydrogenation of Methyl Eleostearate to Monounsaturated Fatty Acid Methyl Esters","authors":"Yang Hang, Lieshun Cai, Bingbing Shi, Taoshan Jiang, Zhongkai Wang","doi":"10.1021/acssuschemeng.4c01076","DOIUrl":"https://doi.org/10.1021/acssuschemeng.4c01076","url":null,"abstract":"Selective hydrogenation of plant oils is an important step in the production of oleochemicals. In this work, a new protocol for photoinduced selective hydrogenation of methyl eleostearates under aqueous conditions has been reported. Using palladium supported on porous graphitic carbon nitride (Pd/pg-C<sub>3</sub>N<sub>4</sub>) as a heterogeneous catalyst, formic acid as a hydrogen donor instead of potentially dangerous hydrogen gas, and water as a solvent, methyl eleostearates could be selectively transformed into monounsaturated fatty acid methyl esters (C18:1), which show a high selectivity of &gt;90% under room temperature. The excellent selectivity is attributed to the synergistic effects of the Pd nanoparticles with pg-C<sub>3</sub>N<sub>4</sub>. Subsequently, dimethyl 1,19-nonadecanedioate (C19 α,ω-diesters) was prepared by isomerizing alkoxycarbonylation of the synthesized C18:1 product. The purity of the C19 α,ω-diester monomer is calculated to be higher than 96%, which is critical for the production of polymeric materials.","PeriodicalId":25,"journal":{"name":"ACS Sustainable Chemistry & Engineering","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141578022","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}
引用次数: 0
In Situ Ultrafast Construction of Polysaccharide-Based Janus Hydrogel Films by Asymmetric Cross-Linking for On-Demand Sterilization 通过不对称交联原位超快构建多糖基 Janus 水凝胶膜,实现按需灭菌
IF 8.4 1区 化学
ACS Sustainable Chemistry & Engineering Pub Date : 2024-07-09 DOI: 10.1021/acssuschemeng.4c02961
Yong-Fu Deng, Shuwen Luo, Jianfang Li, Shicheng Bi, Fuxiang Wei, Chuanhui Xu, Lihua Fu, Baofeng Lin
{"title":"In Situ Ultrafast Construction of Polysaccharide-Based Janus Hydrogel Films by Asymmetric Cross-Linking for On-Demand Sterilization","authors":"Yong-Fu Deng, Shuwen Luo, Jianfang Li, Shicheng Bi, Fuxiang Wei, Chuanhui Xu, Lihua Fu, Baofeng Lin","doi":"10.1021/acssuschemeng.4c02961","DOIUrl":"https://doi.org/10.1021/acssuschemeng.4c02961","url":null,"abstract":"Excessive and repetitive use of disinfectants poses a significant waste and health hazard; therefore, developing a more secure and efficient sterilization strategy is of great significance in safeguarding public health. Herein, we propose a facile strategy for rapidly fabricating a carboxymethyl chitosan (CMCS)/sliver nanoparticle (AgNPs)/Zn<sup>2+</sup> Janus hydrogel film (CAZ) through in situ asymmetric cross-linking for on-demand sterilization. The Zn<sup>2+</sup> diffusion from the surface toward the interior rapidly constructed the Janus hydrogel structure with a high cross-linking front and a low cross-linking back, realizing ultrafast film formation in approximately 3 s. Ingeniously, the Janus structure confers asymmetric adhesion (167 times difference) to CAZ and forms an antiadhesion front that can be touched by hand and an adhesion back that firmly adheres to the target surface, achieving the positioning and self-matching film formation. Specifically, the antibacterial activity was significantly enhanced by introducing a small amount of AgNPs (0.08 wt %). The three-dimensional movement trajectory of bacteria gradually weakened (10 min) and disappeared (30 min) on CAZ, demonstrating the excellent contact bactericidal performance. Moreover, the CAZ had great biocompatibility, ensuring biosafety. Consequently, in situ preparation of CAZ on the sensitive area surfaces could achieve fast and long-term on-demand sterilization, providing a green and safe strategy for public health protection.","PeriodicalId":25,"journal":{"name":"ACS Sustainable Chemistry & Engineering","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141578061","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}
引用次数: 0
Chitin/Chitosan Biocomposite Foams with Chitins from Different Organisms for Sound Absorption 甲壳素/壳聚糖生物复合泡沫与不同生物的甲壳素在吸音方面的应用
IF 8.4 1区 化学
ACS Sustainable Chemistry & Engineering Pub Date : 2024-07-09 DOI: 10.1021/acssuschemeng.4c00044
Sebastian B. Wachsmann, Matthias Ruf, Carsten Prinz, Nina Oehlsen, Xiaoru Zhou, Michael Dyballa, Christine Arweiler, Philip Leistner, Holger Steeb, Harald Garrecht, Sabine Laschat, Linus Stegbauer
{"title":"Chitin/Chitosan Biocomposite Foams with Chitins from Different Organisms for Sound Absorption","authors":"Sebastian B. Wachsmann, Matthias Ruf, Carsten Prinz, Nina Oehlsen, Xiaoru Zhou, Michael Dyballa, Christine Arweiler, Philip Leistner, Holger Steeb, Harald Garrecht, Sabine Laschat, Linus Stegbauer","doi":"10.1021/acssuschemeng.4c00044","DOIUrl":"https://doi.org/10.1021/acssuschemeng.4c00044","url":null,"abstract":"Foams are widely used for applications in construction, energy absorption, and building insulation. We developed sustainable chitin/chitosan-based foams derived from snow crab and <i>Aspergillus niger</i> (α-chitin) and from squid (β-chitin), which were obtained via a “shake and bake” process. The foam structure, mechanical, thermophysical, sound absorption, and flammability properties were studied. Stable foams were obtained from snow crab and squid chitin, whereas <i>A.niger</i>-based foams were inhomogeneous. Foams derived from the former biomass sources displayed densities of 0.07–0.30 g/cm<sup>3</sup> and bulk porosities of 78–94% with only a minimal number of closed pores. According to mercury porosimetry (MP) and X-ray computed microtomography (μXRCT), pore sizes ranged from 3 μm to 1.5 mm, with the majority of pores being larger than 400 μm. In mechanical compression tests, β-chitin-based foams showed higher specific compressive strength and modulus (up to <i></i><span style=\"color: inherit;\"><span><span><span style=\"margin-right: 0.05em;\"><span>σ</span></span><span style=\"height: 1.86em; vertical-align: -0.64em;\"><span><span><span style=\"margin-bottom: -0.25em;\"><span><span>*</span></span></span></span></span><span><span><span style=\"margin-top: -0.85em;\"><span><span>0.1</span></span></span></span></span></span></span></span></span><span style=\"\" tabindex=\"0\"></span><script type=\"math/mml\"><math display=\"inline\"><msubsup><mrow><mi>σ</mi></mrow><mrow><mn>0.1</mn></mrow><mrow><mo>*</mo></mrow></msubsup></math></script> = 9.00 MPa/<i>E</i>* = 107.37 MPa) compared to the α-chitin-based series. Dynamic vapor sorption (DVS) measurements revealed that the β-chitin (from squid) series overall took up more water vapor (≤40 wt %) than the α-chitin (from snow crab) series (≤33 wt %). Flammability tests showed that the developed foams were suitable for fire protection class E, superior to common polyurethane (PU) foams, and sound absorption tests showed promising results for applications only little influenced by humidity.","PeriodicalId":25,"journal":{"name":"ACS Sustainable Chemistry & Engineering","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141578021","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}
引用次数: 0
Machine Learning-Based Adaptive Regression to Identify Nonlinear Dynamics of Biochemical Systems: A Case Study on Bio 2,3-Butanediol Distillation Process 基于机器学习的自适应回归,识别生化系统的非线性动态:生物 2,3-丁二醇蒸馏过程案例研究
IF 8.4 1区 化学
ACS Sustainable Chemistry & Engineering Pub Date : 2024-07-09 DOI: 10.1021/acssuschemeng.4c02570
Yeongryeol Choi, Bhavana Bhadriraju, Hyukwon Kwon, Jongkoo Lim, Joseph Sang-Il Kwon, Junghwan Kim
{"title":"Machine Learning-Based Adaptive Regression to Identify Nonlinear Dynamics of Biochemical Systems: A Case Study on Bio 2,3-Butanediol Distillation Process","authors":"Yeongryeol Choi, Bhavana Bhadriraju, Hyukwon Kwon, Jongkoo Lim, Joseph Sang-Il Kwon, Junghwan Kim","doi":"10.1021/acssuschemeng.4c02570","DOIUrl":"https://doi.org/10.1021/acssuschemeng.4c02570","url":null,"abstract":"Developing an accurate process model is essential to efficiently operate a process and maximize its economics. While offline data-driven models utilizing historical data generally exhibit satisfactory performance, their effectiveness diminishes in accurately predicting real processes characterized by constant changes and uncertainties over time. Hence, there is a need for an adaptive model that is capable of effectively handling dynamic behavior. In this study, we propose an adaptive data-driven regression model that leverages subset selection techniques and decision thresholds. In addition, a comprehensive analysis was performed to determine the best adaptive regression model, considering case studies with different model parameters and training window sizes, taking into account statistical indicators of model accuracy as well as nonstatistical indicators such as the number of updates, update period, and computation time. The developed adaptive regression model has been successfully demonstrated on a bio 2,3-Butanediol distillation column at GS Caltex, Republic of Korea, suggesting its potential applicability to similar process systems and providing opportunities for future research in process optimization and control.","PeriodicalId":25,"journal":{"name":"ACS Sustainable Chemistry & Engineering","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141578063","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}
引用次数: 0
CO2-Driven Additive Manufacturing of Sustainable Steel Slag Mortars 二氧化碳驱动的可持续钢渣砂浆快速成型技术
IF 8.4 1区 化学
ACS Sustainable Chemistry & Engineering Pub Date : 2024-07-09 DOI: 10.1021/acssuschemeng.4c03018
Kuangnan Zhong, Kaiyun Huang, Zhichao Liu, Fazhou Wang, Shuguang Hu
{"title":"CO2-Driven Additive Manufacturing of Sustainable Steel Slag Mortars","authors":"Kuangnan Zhong, Kaiyun Huang, Zhichao Liu, Fazhou Wang, Shuguang Hu","doi":"10.1021/acssuschemeng.4c03018","DOIUrl":"https://doi.org/10.1021/acssuschemeng.4c03018","url":null,"abstract":"This study presents a sustainable additive manufacturing approach for 3D printing in construction sector, leveraging steel slag as the primary carbonatable binder. Pintable steel slag mortars modified with xanthan gum (XG) as the viscosity modifying agents (VMA) demonstrate superior carbonation reactivity and strength development, thus regarded as the optimal formulation. After 24 h carbonation, the compressive strength of the printed samples generally exceeds 100 MPa and reaches up to 127.1 MPa, the characteristic interlayer bonding strength of the printed samples also reaches 5.5 MPa. Superior mechanical properties can be attributed to the densification and reinforcement mechanisms from the magnesium calcite products. Specifically, the larger magnesium calcite crystals intergrow to densify the matrix, while the tiny crystallites deposit on internal pore walls, repairing these defects. The carbonated printed samples exhibit typical mechanical property anisotropy which, associated with deposition molding process, is further amplified by heterogeneity in the carbonation reaction. Low carbon steel slag feedstock and CO<sub>2</sub> capture from carbonation curing achieves net CO<sub>2</sub> sequestration for the steel slag 3D printing mortar across the integrated manufacturing cycle, with a quantified carbon footprint of −86.77 kg CO<sub>2</sub>/m<sup>3</sup>.","PeriodicalId":25,"journal":{"name":"ACS Sustainable Chemistry & Engineering","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141578064","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}
引用次数: 0
Conceptual Process Design and Techno-Economic Analysis of Biocatalytic Furfural Hydrogenation Using Ethanol as the Terminal Reductant 以乙醇为终端还原剂的生物催化糠醛加氢概念工艺设计和技术经济分析
IF 8.4 1区 化学
ACS Sustainable Chemistry & Engineering Pub Date : 2024-07-09 DOI: 10.1021/acssuschemeng.4c01718
Victor K. Sharma, Thomas P. Binder, Alan M. Allgeier
{"title":"Conceptual Process Design and Techno-Economic Analysis of Biocatalytic Furfural Hydrogenation Using Ethanol as the Terminal Reductant","authors":"Victor K. Sharma, Thomas P. Binder, Alan M. Allgeier","doi":"10.1021/acssuschemeng.4c01718","DOIUrl":"https://doi.org/10.1021/acssuschemeng.4c01718","url":null,"abstract":"Redox enzyme-catalyzed reactions can be crucial to the development of a circular bio-economy by facilitating the valorization of biomass-based feedstock materials, such as bioethanol and furfural. The potential of yeast alcohol dehydrogenase-catalyzed furfural reduction to furfuryl alcohol using ethanol as the terminal reductant has been well-documented in the literature using free and immobilized enzymes. In this study, a systematic, comprehensive techno-economic analysis of furfuryl alcohol and acetaldehyde coproduction is presented. A conceptual process design for the production and separation of the products has been developed, and a process economics analysis has been performed to study the potential and challenges of this technology. Two scenarios derived from both actual experimental data and hypothetical assumptions were studied to understand the factors behind the economic feasibility. It was observed that high concentrations of organics in the reactor product stream and low cost of the starting raw materials are the most crucial factors for economic feasibility and achieving minimum selling prices of coproducts that could be comparable to the current market prices. The results of this conceptual design and economic analysis can form the basis for future life cycle analyses.","PeriodicalId":25,"journal":{"name":"ACS Sustainable Chemistry & Engineering","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141578107","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}
引用次数: 0
Harmonizing Sunlight and Architecture for Argema-Inspired Nanocellulose Aerogel Radiative Coolers via Energy Tailoring Strategy 通过能量定制策略协调 Argema 启发的纳米纤维素气凝胶辐射冷却器的阳光和结构
IF 8.4 1区 化学
ACS Sustainable Chemistry & Engineering Pub Date : 2024-07-09 DOI: 10.1021/acssuschemeng.4c00300
Yi Chen, Yuanbo Sun, Fulin Cheng, Yuxin Ji, Chenyang Cai, Yu Fu
{"title":"Harmonizing Sunlight and Architecture for Argema-Inspired Nanocellulose Aerogel Radiative Coolers via Energy Tailoring Strategy","authors":"Yi Chen, Yuanbo Sun, Fulin Cheng, Yuxin Ji, Chenyang Cai, Yu Fu","doi":"10.1021/acssuschemeng.4c00300","DOIUrl":"https://doi.org/10.1021/acssuschemeng.4c00300","url":null,"abstract":"Passive radiative cooling is a zero-energy-consumption cooling technique, which shows great application in releasing global warming. To realize efficient daytime cooling in hot, low-latitude regions, achieving ultrahigh solar reflectance (≥96%), thermal emissivity, and low thermal conductivity simultaneously is very important but remains a great challenge for most polymer-based radiative coolers. In this work, inspired by the micro/nanostructure in <i>Argema mittrei</i>, an efficient energy tailoring strategy was proposed to design mechanically stable and biodegradable nanocellulose aerogel-based radiative coolers (CDA) with a nested pore structure for high-performance passive cooling. By constructing dual-pore structure at the micro/nanoscale level and dual chemical structure at the molecular level by cross-linking by LiCl, the as-prepared CDA exhibits ultrahigh solar reflectance of 97%, high emissivity of 0.91, and thermal conductivity of 37.36 mW/mK, which can realize cooling efficiency of 9.3 °C at noon in a hot city (Nanjing). The simulation indicated that the interweaved dual-pore structure can enhance the structure stability and multiscattering of CDA simultaneously. Furthermore, the CDA also displayed good biodegradability, easy recycling performance, and mechanical robustness. This work shines new light on the development of advanced sustainable porous materials for thermal regulation.","PeriodicalId":25,"journal":{"name":"ACS Sustainable Chemistry & Engineering","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141578060","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}
引用次数: 0
In Situ Capture and Conversion of CO2 to CO Using CaZrO3 Promoted Fe–CaO Dual-Functional Material 利用 CaZrO3 促进的 Fe-CaO 双功能材料原位捕获并将 CO2 转化为 CO
IF 8.4 1区 化学
ACS Sustainable Chemistry & Engineering Pub Date : 2024-07-08 DOI: 10.1021/acssuschemeng.4c03093
Zhuxian Gao, Yongning Yuan, Panpan Yang, Xiude Hu, Jingjing Ma, Qingxiang Ma, Tuo Guo, Jianli Zhang, Qingjie Guo
{"title":"In Situ Capture and Conversion of CO2 to CO Using CaZrO3 Promoted Fe–CaO Dual-Functional Material","authors":"Zhuxian Gao, Yongning Yuan, Panpan Yang, Xiude Hu, Jingjing Ma, Qingxiang Ma, Tuo Guo, Jianli Zhang, Qingjie Guo","doi":"10.1021/acssuschemeng.4c03093","DOIUrl":"https://doi.org/10.1021/acssuschemeng.4c03093","url":null,"abstract":"The urgent need to address global warming has led researchers to investigate various methods for capturing and utilizing CO<sub>2</sub>. One promising approach is the integration of calcium looping (CaL) and reverse water–gas shift (RWGS) reactions. Therefore, dual functional materials enriched with CaZrO<sub>3</sub> were introduced as effective catalysts, exhibiting a sustainable catalytic CO<sub>2</sub> conversion to 100% CO selectivity and a remarkable CO<sub>2</sub> adsorption capacity (16.69 mmol g<sub>DFM</sub><sup>–1</sup>), CO yield (9.64 mmol g<sub>DFM</sub><sup>–1</sup>), even under low hydrogen concentration (15% H<sub>2</sub>) in CaL and RWGS processes. Surface chemistry analysis revealed that oxygen vacancies, acting adsorption sites, and lattice oxygen of CaZrO<sub>3</sub> can be activated by hydrogen. This activation, linked to the formation of strong basic sites with Zr<sup>4+</sup>-O<sup>2–</sup>, significantly enhanced CO<sub>2</sub> conversion efficiency. The synergistic promotion mechanism was validated through <i>in situ</i> X-ray diffraction, DRIFTS, and Raman spectroscopy techniques. The bidentate formate mechanism was predominant, indicating that bicarbonates and hydroxyl synergistic promote CO<sub>2</sub> conversion in the high-temperature CaL–RWGS process. 10FCZ–5 showed good long-time stability, and the material maintained a high dispersion of Fe species after 10 cycles, demonstrating excellent absorbent capacity (11 mmol g<sub>DFM</sub><sup>–1</sup>) and CO yield (6.2 mmol g<sub>DFM</sub><sup>–1</sup>).","PeriodicalId":25,"journal":{"name":"ACS Sustainable Chemistry & Engineering","volume":null,"pages":null},"PeriodicalIF":8.4,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141578069","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}
引用次数: 0
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