Journal of CO2 Utilization
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2025
·
IF 8.4
Dake Zhang,Wenzhen Wang,Zhen Wang,Dengmeng Song,Shuang Liu,Yuyang Chen,Xiaoni Ma,Li Xia
Addressing the challenges of biotoxicity, poor long-term stability, and inadequate interfacial adhesion that hinder the clinical translation of tissue adhesives, we utilized the biocompatibility and biodegradability of CO₂-derived polycarbonates (PPC) and innovatively incorporated diacetyl-L-tartaric anhydride (DATA) into the copolymerization to develop PPC and DATA alternating/random copolymer (PPCD) bioadhesives. Compared to unmodified PPC, PPCD exhibits significantly enhanced adhesive properties: peel strength increased to 4.7 ± 0.43 N/cm (a 273 % improvement), sealing strength reached 67 ± 2.3 kPa (a 235 % enhancement), and skin adhesion strength rose to 22.1 ± 2.3 kPa (a 203 % increase). In comparative tests, PPCD outperformed commercial Fibrin glue in overall mechanical performance. Furthermore, PPCD demonstrates thermoresponsive viscosity modulation, undergoing debonding at 10°C with a thermal response efficiency exceeding 95 % compared to its viscosity at 37°C. Crucially, PPCD retains the degradability and bioaffinity of the original PPC, as confirmed by cytotoxicity assays showing > 98 % cell viability and histopathological analyses in mice verifying its biosafety. This bioadhesive resolves the long-standing trade-off between mechanical robustness and biocompatibility, while also establishing a new CO₂ valorization strategy for eco-friendly biomedical materials. The functionalization of PPC not only enhances adhesive performance but also pioneers a sustainable pathway for carbon utilization, demonstrating the transformative potential of next-generation tissue repair technologies.
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BIOMASS & BIOENERGY
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2026
·
IF 7
Linlin Li,Jiang Zhao,Qingmei Ge,Yin-Hui Huang,Hang Cong,Wenfeng Zhao
Converting CO 2 into value-added chemicals using sustainable, biomass-derived catalytic systems is a key strategy for carbon mitigation and resource utilization. In this study, a heterogeneous biomass-derived zwitterionic polymer was fabricated from chitosan for CO 2 cycloaddition and N-methylation reactions. The synthesized porous bio-based polymer exhibits a robust structure and exceptional CO 2 adsorption capacity, leading to high catalytic efficiency. Under mild conditions, this catalyst achieved yields of up to 95% for 8 cyclic carbonates and 99% for 10 N-methylamines. Furthermore, the chitosan-based polymer demonstrates remarkable stability, maintaining its activity over at least 6 reuse cycles without significant degradation. Mechanistic studies indicate that the inherent –NH 2 or –OH groups on chitosan facilitate CO 2 and epoxide activation, while the zwitterionic structure provides active sites for ring-opening and cyclization processes.
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Carbon Capture Science & Technology
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2026
·
IF 10.2
Shuo Xiang,Jun-Long Li,Tie Wu,Lian-Peng Li,Mian Hu,Jun Zhao,Zhong-Ting Hu,Zhiyan Pan
The growing demand for efficient carbon capture technologies has led to the exploration of biochar as a promising material for CO 2 adsorption, particularly through modifications such as nitrogen doping to enhance its performance. In this study, a series of biochars were prepared using different types of amine reagents and varying amounts of nitrogen doping. The highest adsorption capacity, 4.99 mmol g -1 , was achieved at 25 °C and 1.6 MPa when ethylenediamine was employed as the nitrogen source, with a mass ratio of the amine reagent to biochar of 1.2. Correlation analysis indicated that both physical and chemical adsorption significantly influenced CO 2 adsorption capacity. Additionally, by constructing biochar models with varying nitrogen contents and different nitrogen doping forms, theoretical calculations revealed that nitrogen doping could enhance the adsorption energy between CO 2 and biochar. This improvement in adsorption performance was more pronounced with higher nitrogen content. In this work, not only N-doped biochar with excellent CO 2 adsorption performance was prepared from waste biomass, but also the promotion mechanism of N-doped was revealed in detail by combining theoretical calculations and experiments.
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Sustainable Chemistry and Pharmacy
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2026
·
IF 5.8
Gao Rui,Xu Bingqi,Gao Weichen,Jiang Ping,Zhang Shiyu,Cui Kai,Zhao Yingliang
Alkali-activated slag (AAS) binders activated solely by sodium hydroxide often exhibit poor performance, requiring additional sodium silicate, which increases both cost and environmental impact. To overcome these limitations, in this study, a novel CO 2 -assisted activation (CAA) strategy, integrating CO 2 mineralization with mechanical activation, is proposed to enhance the performance of AAS binders. Reaction kinetic modeling revealed that the slightly lower reaction order observed in the CAA-treated AAS system, reflects a suppression of diffusion-controlled hydration, which in turn prolonged the nucleation-growth stage and enabled a uniform hydration pathway. Structural analysis suggests enhanced silicate polymerization in CAA-treated AAS samples, as evidenced by increased Q 2 (1Al) content, mean chain length, and polymerization degree from 29 Si NMR. These gel-level refinements resulted in a denser and more cohesive matrix, contributing to improved mechanical performance. Specifically, the optimized system exhibited a 68.0 % increase in 1-day compressive strength and a 45.6 % enhancement at 28 days, along with reduced porosity and higher micromechanical stiffness. The synergy between CO 2 and the mechanical activation in CAA process suggests that CO 2 acts as a field-enhancing agent, modifying the physicochemical environment and promoting nucleation processes. Overall, this work demonstrates that CAA offers a dual-function strategy—both chemical and environmental—for designing high-performance, low-carbon AAS systems.
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Journal of Environmental Chemical Engineering
·
2024
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IF 7.4
Wenhan Wang,Wenqiang Li,Zijian Wang,Bo Liu,Bing Wang,Jingui Duan,Rongfei Zhou
Carbon dioxide capture is an effective method to mitigate climate change . Highly CO 2 -selective and highly moisture-resistant absorbent is essential for energy-efficient carbon capture by absorption. Herein, a highly CO 2 -selective and high-silica CHA zeolite in a pure lithium form (Li-SSZ-13) was synthesized using a direct synthesis method for the first time. The effects of gel n (SiO 2 )/ n (Al 2 O 3 ) ratio, gel n (SiO 2 )/ n (Li 2 O) ratio and synthesis time on the crystallinity , yield, micropore volume and CO 2 loading of the crystals were systematically investigated. The adsorption isotherms of CO 2 and N 2 were measured for directly synthesized Li-SSZ-13, conventional Na-SSZ-13 and ion-exchanged Li-Na-SSZ-13 zeolites. The dynamic breakthrough adsorption properties were measured for Li-SSZ-13 in comparison with Na-SSZ-13 and Li-Na-SSZ-13. The obtained Li-SSZ-13 exhibited a high CO 2 adsorption capacity of 4.48 mmol/g and a high CO 2 /N 2 IAST selectivity of 310 at 100 kPa and 273 K, which were 45.0 % and 441 % higher than Na-SSZ-13 zeolite, 24.8 % and 179 % higher than Li-Na-SSZ-13 zeolite, respectively. It suggests that directly synthesized Li-SSZ-13 zeolite has great potential for efficient CO 2 capture from flue gas .
研究领域:
材料科学
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环境科学
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Science China-Chemistry
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2024
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IF 10.4
Chen Zhi-Wei,Wang Hong-Juan,Liu Chang,Lu Xiu-Li,Lu Tong-Bu
Nitrogen-doped carbon materials have been widely used for the constructions of single-atom catalysts, while the effect of different species of doped nitrogen on the catalytic activity of CO 2 electroreduction has rarely been investigated. Here we found that pyrrolic-N coordinated Ni 2+ catalysts display much higher electrocatalytic CO 2 -to-CO activity and selectivity than the corresponding pyridinic-N coordinated low valent Ni (0−+2) catalysts, and pyrrolic-N coordinated Ni 2 dual-atoms catalyst of Ni 2 /N-CNTs exhibits the best electrocatalytic performance, with over 90% Faradaic efficiencies in a broad potentials from −0.6 to −1.2 V vs. reversible hydrogen electrode, as well as an outstanding CO specific current of 56.2 A/mg Ni and high turnover frequency of 6.2 × 10 4 h −1 , over 7-times higher than those of pyridinic-N coordinated Ni catalysts. Electrochemical results indicate the weak electron-donor nature of pyrrolic-N facilitates the generation of a reduced active site at low overpotential for boosting CO 2 electroreduction. Density functional theory calculations reveal that the reaction free energy for the *COOH formation on pyrrolic-N coordinated Ni catalysts are lower than those on pyridinic-N coordinated Ni catalysts, and a H 2 O-adsorbed Ni 2 /N-CNTs displays the optimized reaction free energy for both *COOH formation and CO desorption, which derive the best catalytic performance.
研究领域:
材料科学
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催化化学
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电化学
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JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
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2013
·Vol. 51
·期 13
·2834-2840
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IF 3.543
Lin Gu,Yusheng Qin,Yonggang Gao,Xianhong Wang,Fosong Wang
Common CO 2 -based biodegradable polycarbonates like poly(propylene carbonate) or poly(cyclohexene carbonate) are generally hydrophobic, leading to slow biodegradation rate and poor cell adhesion, which limit their applications in the biomedical field. Here hydrophilic polycarbonates were prepared by one-pot terpolymerization of CO 2 , propylene oxide (PO), and 2-((2-(2-(2-methoxyethoxy)ethoxy)ethoxy)methyl)oxirane (ME 3 MO) using binary Salen Co(III)-Cl/PPNCl catalyst system. The resultant terpolymers showed one glass transition temperature ( T g ), which decreased with the increase of ME 3 MO units in the terpolymers ( F ME3MO ). Water contact angles of the resultant terpolymers with F ME3MO of 4.2−23.6% were 68−25°, while that of poly(propylene carbonate) was 90°, indicating that the terpolymers became hydrophlilic. Furthermore, the terpolymers with F ME3MO more than 25.8% exhibited reversible and rapid thermo-responsive property in water, and the lower critical solution temperature (LCST) was highly sensitive to F ME3MO . In particular, aqueous solution of the terpolymer with F ME3MO of 72.6% showed a LCST around 35.2 °C, close to body temperature, which was promising for biomedical applications, especially for in vivo applications. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2013, 51, 2834–2840.
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Small
·
2019
·Vol. 15
·期 49
·1904145
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IF 10.856
Hanqing Lin,Ke Gong,Wen Ying,Danke Chen,Jun Zhang,Youguo Yan,Xinsheng Peng
CO 2 capture and sequestration is an energy-intensive industry to deal with the global greenhouse effect. Membrane separation is considered a cost-effective method to mitigate the emission of CO 2 . Though good separation performance and stability have been reported, supported ionic liquid membranes are still not widely applied for CO 2 separation due to the high cost. As a novel analogous solvent to ionic liquid, deep eutectic solvent retains the excellent merits of ionic liquid and is cheap with facile preparation. Herein, a highly CO 2 -philic separation membrane is constructed by nanoconfining choline chloride/ethylene glycol (ChCl/EG) deep eutectic solvent into graphene oxide nanoslits. Molecular dynamic simulation results indicate that the confinement makes a difference to the structure of the nanoconfined ChCl/EG liquid from their bulk, which remarkably facilitates CO 2 transport. By tuning the molar ratio of ChCl/EG and thickness of the membrane, the resultant membrane exhibits outstanding separation performance for CO 2 with excellent selectivity over other light gases, good long-term durability, and thermal stability. This makes it a promising membrane for selective CO 2 separation.
研究领域:
材料科学
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环境工程
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化学工程
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纳米技术
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Carbon Energy
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2026
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IF 24.2
Fengyu Tian,Yaohao Li,Xuemin Yan,Huiwen Zhu,Jiayu Liang,Honglei Zhang,Ning Han
Photocatalytic CO 2 reduction involves multiple proton-coupled and multi-electron transfers, leading to a plethora of reaction pathways and consequently unpredictable products. The unique electronic structure and unsaturated coordination environment of single-atom photocatalysts can influence the reaction pathways of CO 2 photoreduction, enhancing the yield of a target product. Herein, we rationally design the In single-atom photocatalyst (In-NTO) containing isolated In δ+ –N 3 O 2 atomic interface sites for highly efficient and selective CO 2 -to-CO photoreduction. This distinctive atomic configuration not only reduces the overall activation energy barrier but also transforms the key *CO desorption step from an endoergic to an exoergic one, thereby altering the reaction pathway to selectively produce CO rather than CH 4 . Consequently, the 0.25 wt% In-NTO exhibits high selectivity (95.9%) for photocatalytic CO 2 -to-CO conversion, with a rate of 6.34 µmol g −1 h −1 . This work offers a novel strategy for modulating the reactivity and product selectivity of photocatalytic CO 2 reduction toward desired products by constructing single-atom sites with heteroatomic coordination.
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CATALYSIS LETTERS
·
2026
·Vol. 156
·期 2
·50
·
IF 2.4
Cheng Hongna,Wang Chaoyong,Wang Zihan,Peng Weikang,Hou Jiayi,Tian Shiting,Shi Zixuan,Liu Ying,Li Fengfeng,Zhang Mingxi
The climate crisis caused by excessive carbon dioxide (CO 2 ) emissions urgently call for efficient electrocatalytic reduction technology to convert CO 2 into high value-added products. In this study, nickel polyphthalocyanine (NiPPc) electrocatalysts with different copper (Cu) doping amounts (10–90 wt%) were prepared by solvothermal method, Combining X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and other characterization and electrochemical testing, it is found that: Doping with 10 wt% Cu significantly enhanced catalytic activity, achieving a current density of 325 mA cm −2 at − 0.6 V (vs. RHE)—2.8 times that of the sample; 50 wt% Cu doping optimized the Cu–N 4 active sites, yielding a carbon monoxide (CO) Faraday efficiency of up to 95% at − 1.0 V; 30 wt% Cu-doped catalyst can generate CO: H 2 = 1:1 syngas, A controllable catalyst design strategy is provided for CO 2 electrocatalytic reduction. Graphical Influence of Cu Loading (10–90 wt%) on Electrocatalytic CO 2 Reduction Activity and CO Selectivity of NiPPc Catalysts.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2016
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IF 2.567
Tao Wang,Wei Yu,Fei Liu,Mengxiang Fang,Muhammad Farooq,Zhongyang Luo
In this study, three different nanoparticles—SiO2, TiO2, and Al2O3—were employed to enhance the CO2 gas absorption by monoethanolamine (MEA) solvent. It is observed that, with increased solids loading, the total mass-transfer enhancement has a tendency to be dominated by the bubble breaking effect. It is concluded that nanoparticles result in an increased CO2 absorption rate of >10%. On the other hand, nanoparticles exhibit much more attractive impact on CO2 desorption. Under the same desorption extent, solvent with 0.1 wt % TiO2 nanoparticles saved 42% desorption time, compared to that without nanoparticles. Under higher heat flux density, more input heat would be supplied to the heat of desorption, rather than the heat of water evaporation, which is due to the enhancement of desorption rate by nanoparticles. The issue of particle aggregation was also investigated by analyzing the size distribution of nanoparticle clusters and zeta potential of MEA solvents.
研究领域:
化学工程
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环境科学
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能源技术
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纳米材料学
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传热传质学
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SENSORS AND ACTUATORS B-CHEMICAL
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2015
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IF 4.097
Cheng-Hui Zeng,Xiao-Ting Meng,Song-Song Xu,Li-Jun Han,Shengliang Zhong,Mei-Ye Jia
A rarely reported polymorphic lanthanide complex is prepared by acetylacetone (acac) tuning method. Luminescence properties of 1 are studied. Interestingly, 1 is proved to be a multifunctional material. It is a highly selective and sensitive Co 2+ sensor, among 24 species, only Co 2+ quenching the Tb 3+ centered luminescence. The possible sensing mechanism is the decomposition of 1 which induced by Co 2+ . The limit of detection (LOD) for sensing Co 2+ is as low as 330 nM, which is lower than the standard of Chinese environmental protection department. Mechanism study confirmed the luminescence quenching can be ascribed to the decomposition of 1 which induced by Co 2+ . Further investigations find 1 -Co 2+ can be applied as tunable luminescent timer, by tuning the ratio of 1 /Co 2+ . CIE coordinates of 1 -Co 2+ change regularly (has excellent linearity) from green to violet with the time increasing.
研究领域:
分析化学
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无机化学
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材料科学
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环境监测
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生物传感
·
分子探针
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危险品化学品经营许可证（带存储）