MOLECULES
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2023
·Vol. 28
·期 5
·2024
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IF 4.6
Jiawei Wang,Yanli Chen,Yunfeng Zhao,Chongyan Yao,Yibo Liu,Xizheng Liu
Lithium-air batteries (LABs) have attracted extensive attention due to their ultra-high energy density. At present, most LABs are operated in pure oxygen (O2) since carbon dioxide (CO2) under ambient air will participate in the battery reaction and generate an irreversible by-product of lithium carbonate (Li2CO3), which will seriously affect the performance of the battery. Here, to solve this problem, we propose to prepare a CO2capture membrane (CCM) by loading activated carbon encapsulated with lithium hydroxide (LiOH@AC) onto activated carbon fiber felt (ACFF). The effect of the LiOH@AC loading amount on ACFF has been carefully investigated, and CCM has an ultra-high CO2adsorption performance (137 cm3g−1) and excellent O2transmission performance by loading 80 wt% LiOH@AC onto ACFF. The optimized CCM is further applied as a paster on the outside of the LAB. As a result, the specific capacity performance of LAB displays a sharp increase from 27,948 to 36,252 mAh g−1, and the cycle time is extended from 220 h to 310 h operating in a 4% CO2concentration environment. The concept of carbon capture paster opens a simple and direct way for LABs operating in the atmosphere.Keywords:lithium-air battery;CO2capture;long-cycle;carbon capture paster
研究领域:
材料科学
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能源技术
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DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Haifeng Jiang,Xin Xie,Jie Chen,Xuefan Guo,Yanfeng He,Zhengru Lian
This work cleverly utilizes the sulfur contained in lignin itself to achieve the self-growth of calcium sulfide on the surface of electrospun lignin-based carbon membranes, and successfully applies it to the efficient capture of CO 2 . The membrane is synthesized through electrospinning technology combined with one-step calcium loading and carbonization process. The maximum adsorption capacity of the membrane is 1.56 mmol/g at 500 ℃ with a mixed gas of 99 % N 2 and 1 % CO 2 . The Avrami fractional kinetic model indicates that the CO 2 adsorption process is a combination of single-layer and multi-layer adsorption behavior. More importantly, this work innovatively proposes utilizing the CO 2 capture process to promote the migration of sulfur in lignin. Sulfur containing product such as calcium sulfate is generated during the CO 2 capture process. All in all, this work not only lays the foundation for the application of lignin in CO 2 capture, but also provides crucial support for the efficient capture of CO 2 and the advancement of poly-generation technology based on carbon capture.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2015
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IF 4.321
Yingchao Hu,Wenqiang Liu,Jian Sun,Mingkui Li,Xinwei Yang,Yang Zhang,Minghou Xu
A novel inert solid support of Nd 2 O 3 was introduced to enhance the cyclic carbonation/calcination performance of CaO-based sorbents. CaO particles were incorporated into Nd 2 O 3 by a wet-mixing method, using three organometallic precursors (OMPs) as calcium precursors and neodymium(III) acetate hydrate as inert support precursor. For comparison, CaO-based sorbents directly produced from precursors and the naturally occurring sorbent (limestone) were also investigated. FSEM and EDAX results revealed that the ultrafine active specie of CaO particles were homogeneously dispersed into Nd 2 O 3 inert support. As a result, an improved durability and higher carbonation conversion were observed owing to the retarded sintering and the delayed diffusion controlled stage respectively for the sorbents investigated. The performance of the synthetic sorbents also relies on the precursor. When calcium dl -lactate pentahydrate (CaL) was used to incorporate CaO into the inert support Nd 2 O 3 , the highest conversion and best durability were obtained. The effect of calcination temperatures on the sorbent durability was also investigated. Under a relatively severe calcination temperature of 900 °C, a high conversion of about 67% were obtained after 100 carbonation/calcination cycles for a sorbent synthesized from calcium dl -lactate pentahydrate (CaL) and neodymium(III) acetate hydrate. When the calcination temperature was changed to a mild one of 800 °C, a significantly high conversion (>92.5%) was maintained over 100 carbonation/calcination cycles. Besides, no apparent capacity decline was observed for the sorbents after granulation.
研究领域:
化学工程
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材料科学
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DOI
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2023
·Vol. 31
·期 5
·7027-7042
·
IF 5.8
Chen Xuewen,Quan Hongping,Yu Jie,Hu Yuling,Huang Zhiyu
In order to reduce the impact of greenhouse gases on the environment, the development of various new CO 2 capture materials has become a hot spot. In this work, a novel composite amine solid adsorbent was prepared by simultaneously using tetraethylenepentamine (TEPA) and 2-[2-(dimethylamino) ethoxy] ethanol (DMAEE) for amine functionalization on the polyester microsphere carrier. The introduction of methyl methacrylate (MMA) with high glass transition temperature into the polyester carrier makes the carrier microspheres have high hardness. At the same time, the carrier also contains active epoxy groups and hydrophobic glycidyl methacrylate (GMA, which can undergo ring-opening reaction with composite amines to achieve high-load and low-energy chemical grafting of amines on the carrier. The composite aminated polyester microspheres were used as an efficient adsorbent for CO 2 in simulated flue gas. The results show that the synergistic effect of TEPA-DMAEE composite amine system in the adsorbent is beneficial to the improvement of CO 2 capture capacity. When the total amine content in the impregnating solution is 45 wt% and the composite amine ratio is TEPA: DMAEE = 6: 4, the CO 2 adsorption capacity can reach the optimal value of 2.45 mmol/ g at 70 °C. In addition, the composite amine microsphere adsorbent has cyclic regeneration performance. Importantly, through kinetic fitting, the Avrami kinetic model fits the CO 2 adsorption better than the quasi-first-order and quasi-second-order kinetic models, which proves that physical adsorption and chemical adsorption coexist in the adsorption process. This simple, long-term stable and excellent selective separation performance makes amine-functionalized adsorbents have potential application prospects in CO 2 capture. Graphical abstract
研究领域:
材料科学
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环境科学
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产品关联
DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Liguo Wan,Shan Yun,Lijun Zhang,Ling Xiong,Bao-Shan Xing,Haiyan Ma,Hanning Wang,Yu-You Li
Urban wastewater contains abundant recoverable energy, primarily distributed in particulate and soluble organic matter. It is estimated that anaerobic treatment combined with biogas recovery technology can provide sufficient electricity to achieve energy self-sufficiency in wastewater treatment plants. Therefore, strengthening wastewater pretreatment to separate and concentrate organic matter not only enhances the anaerobic stability of both solids and liquid streams but also provides additional resources for subsequent energy recovery. This study proposes an innovative treatment method that integrates ultrafiltration (UF) and forward osmosis (FO) systems. The results demonstrate that the UF system achieved a chemical oxygen demand (COD) capture efficiency of 78.6 %, effectively retaining 68.3 % of organic matter in the sidestream, thus offering abundant resources for subsequent bioenergy recovery. Meanwhile, the FO system retained over 90 % of PO 4 3- -P, significantly increasing phosphorus concentration, with concentration multiples of 6.30 for PO 4 3- -P and 6.37 for total phosphorus (TP), facilitating efficient phosphorus recovery. Compared to conventional methods, the integrated UF-FO system reduced sludge production by over 50 % and increased net electricity generation by 39.2 %, demonstrating significant environmental benefits. This combined system provides a sustainable solution for fully enclosed wastewater treatment, achieving the triple objectives of resource recovery, energy production, and environmental protection.
研究领域:
环境科学
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污水处理
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资源回收
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
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2024
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IF 5.3
Bin Chen,Hegang Shu,Yujun Guo,Yingjie Xu
In this work, the effect of the structure and substitution of azole-based anion on the CO 2 capture and viscosity ( η ) of metal chelate-based dual functional ionic liquids (DFILs) with [K(DGA) 2 ] + cation was investigated. The CO 2 absorption capacity of DFILs at 0.1 MPa and 333.2 K shows that methyl and nitro groups on the azole-based anion, such as pyrazolide ([Pyr] − ) and imidazolide ([Im] − ), attenuate their reactivity with CO 2 through the steric hindrance and electron-withdrawing effects, respectively. Furthermore, the CO 2 absorption capacity of [K(DGA) 2 ][Pyr] is larger than that of [K(DGA) 2 ][Im], which is due to the interaction of the two adjacent N atoms in the [Pyr] − anion with CO 2 , as confirmed by DFT calculations. The CO 2 absorption mechanism shows that both [Pyr] − anion and [K(DGA) 2 ] + cation of [K(DGA) 2 ][Pyr] can chemically interact with CO 2 , making its saturated uptake at 333.2 K as high as 1.47 mol CO 2 per mole IL. Moreover, CO 2 interacts preferentially with [Pyr] − , and the [K(DGA) 2 ] + –CO 2 interaction is enhanced when the CO 2 uptake is greater than 0.5 mol CO 2 per mole IL. η of pure [K(DGA) 2 ][Pyr] is lower than that of pure [K(DGA) 2 ][Im]. η of [K(DGA) 2 ][Pyr] increases with the increase of CO 2 absorption, and the rapid increase in η after CO 2 uptake greater than 0.5 is attributed to the formation of [K(DGA) 2 ] + –CO 2 interactions.
研究领域:
化学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Zewen Xu,Pei Li,Hao Guo,Shengchao Zhao,Kuo Chen,Xinliang Liu,Ming Wang,Yingfei Hou
Excessive carbon emission leads to global warming, threatening human survival. Membrane-based carbon capture technology is an important component of carbon capture, utilization, and storage (CCUS) technology and one of the main upstream technologies for achieving carbon neutrality. PIM-1 materials exhibit high CO 2 permeability but lower CO 2 /N 2 selectivity, making it a significant focus to improve CO 2 /N 2 selectivity without sacrificing CO 2 permeability. In this work, Noria was introduced as a block through the bottom-up approach into the PIM-1 molecular chain, forming Noria-based porous organic polymer (NPOP) microregions with excellent CO 2 affinity. Additionally, the presence of NPOP increases the interchain gaps, resulting in a higher free volume. Consequently, the separation membrane prepared under optimal conditions broke the 2008 upper bound, with a 43.6 % increase in CO 2 permeability and a 41.7 % increase in CO 2 /N 2 selectivity. Furthermore, NPOP could form colloidal networks and provide rigidity to the separation membrane, endowing it with excellent aging resistance. After 6 months of aging, the CO 2 permeability of 0.5 %Noria decreased by only 33.4 % (67.4 % for pure PIM-1), indicating its strong potential for widespread applications.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
·
IF 7.7
Guanzhang Liu,Ke Li,Hang Yuan,Rui Zhou,Lei Mao,Ruifang Zhang,Guangya Zhang
Carbonic anhydrase (CA) has a promising application as a green and efficient biocatalyst for CO 2 capture, and many successful cases of immobilizing CA have been reported. However, CA antifouling coatings on metal for CO 2 sequestration have rarely been reported. Herein, dimeric CA from Sulfurihydrogenibium azorense (SazCA) with a ferritin tag, which was prepared by low-speed centrifugation with high yield, was adopted as a free enzyme and encapsulated in the sol-gel silica . The silica-immobilized CAs were dispersed into the commercialized metal-antifouling epoxy resin paint to obtain CA coated nickel foams, which had excellent stability, with 90 % and 67 % residual activity after 28 days of incubation at 30 °C and 60 °C, respectively. The CA coated nickel foams remained 60 % original activity after 6 cycles of use within 28 days. Then, a CA-microalgae carbon capture device was constructed using the CA coated nickel foams and Chlorella . The growth rate of Chlorella was significantly increased and the biomass of Chlorella increased by 29 % compared with control after 7 days of incubation. Due to the simple and cost-effective preparation process, sustainable and efficient CO 2 absorption, this easy-to-scale up CA coated nickel foam has great potential in CA assisted microalgae-based CO 2 capture and carbon neutrality .
研究领域:
生物技术
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2021
·
IF 4.527
Yingchao Hu,Hongyuan Lu,Hailong Li
Li 4 SiO 4 stands out among various solid sorbents for CO 2 capture. The commonly used mechanical granulation process for Li 4 SiO 4 sorbents causes the destruction of the microstructures. Therefore, with the characteristics of huge production and low cost, an agricultural waste (rice husk) was employed as a pore former to improve the structures of Li 4 SiO 4 pellets and, thus, enhance the cyclic CO 2 sorption performance. The rice husk templating greatly enhanced the CO 2 sorption capacity of Li 4 SiO 4 pellets. Especially, 20 wt% rice husk-templated Li 4 SiO 4 exhibited the capacity of 0.21 g/g, which was nearly twice that of the unmodified sorbent. The quick release of the combustion gases from burning rice husk could create porosity for the sorbents. In addition, the alkaline compositions in rice husk promoted the CO 2 sorption due to the decreased CO 2 diffusion resistance by the formation of molten phases. Moreover, the ashes of rice husk after high-temperature combustion were found to block the pores of the sorbents, leading to the capacity reduction. The comprehensive function of rice husk templating for Li 4 SiO 4 pellets was the tradeoff between the positive effects of pore creation and alkaline doping and the negative effects of pore blockage by the ashes.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
·
2023
·
IF 6.1
Yanzheng Ji,Xingyu Liu,Haochen Li,Xuan Jiao,Xinquan Yu,Youfa Zhang
The performance of activated carbon (AC) will be severely affected for carbon dioxide (CO 2 ) capture in flue gas, as they usually suffer from competitive adsorption of water vapor. Establishment of a barrier against moisture on the surface of porous adsorbent material could potentially address this issue. Zeolite-like metal–organic frameworks (ZIF-8) as a promising adsorbent material demonstrates hydrophobic properties, large specific surface area, and highly porous structure. Here, by further growth of ZIF-8 on polydopamine (PDA)-coated bio-based carbon (AC@PDA), we fabricate hydrophobic final product (AC@ZIF-8). The CO 2 capture capacities of AC@ZIF-8 was 41.69 cm 3 /g, which is only 13.61% lower than that of the initial AC under dry conditions. The hydrophobic ZIF-8 layer can effectively prevent water molecules from reaching the interior AC. Therefore, the adsorption of CO 2 for AC@ZIF-8 decreased by only 16.74% under high relative humidity, while it decreased by 61.27% for bare AC. This strategy will broaden the applications of carbon-based adsorbents for CO 2 capture under severely humid conditions. We believe that this approach is also applicable for an extensive set of CO 2 capture materials that suffer from water instability.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Zongze Lv,Jiaqi Ruan,Weifeng Tu,Xun Hu,Donglin He,Xin Huang,Changlei Qin
Integrated carbon capture and utilization by methanation (ICCU-methanation) is an emerging concept in reducing CO 2 emissions and storing H 2 simultaneously. One key of the technology is the development of dual functional materials (DFMs) that can efficiently capture CO 2 and then catalyze it. Herein, we propose the construction of DFM using Li 4 SiO 4 with superior CO 2 adsorption/desorption features as sorbent and catalyst carrier, CeO 2 as catalyst promoter and isolator, and Ni as catalytic metal, and comprehensively evaluate its characteristics and performance in ICCU-methanation. Results show that the DFM developed possess a high and stable CO 2 capacity of 5.4 mmol·g DFM -1 , 96 % CO 2 conversion and 96 % CH 4 selectivity under both the ideal CO 2 capturing atmosphere and the realistic flue gas containing 10 vol% steam and 8 vol% O 2 . Moreover, rapid CO 2 dissociation from the DFM is observed at a temperature lower to 560 °C due to the reaction of H* dissociated by catalyst with carbonate to form formate, which further decomposes to release CO.
研究领域:
能源化学
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环境科学
✓ 已验证
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Sihan Ai,Yong Xiang,Xue Chen,Yanlin Zhang,Yufei Zhang,Kangning Lv,Xin Chen,Daoyong Yu,Baosheng Ge,Fang Huang
Carbon dioxide capture, utilization and storage (CCUS) technology is considered an effective solution to achieve carbon neutrality. In CCUS, chemical absorption stands out as an efficient CO 2 capture method suitable for environments with low CO 2 partial pressures. This study aims to enhance the CO 2 capture performance of monoethanolamine (MEA) solution by employing zeolitic imidazolate frameworks ZIF-8 and ZIF-67 as catalysts. The impacts of catalyst concentration and experimental temperature on the quantity, rate of absorption, rate of desorption, and reusability of MEA for CO 2 absorption were investigated. Changes in the volume concentration of CO 2 in the mixed gas were monitored to assess these parameters. The results demonstrated that at a catalyst concentration of 150 mg/mL for ZIF-8 and 125 mg/mL for ZIF-67, MEA achieved CO 2 absorption quantity of 22.22 % and 18.89 %, respectively. This corresponded to substantial increases of 63.39 % and 125.9 % in the CO 2 maximum absorption rate of MEA solution. While the maximum desorption rate of MEA was enhanced by 49.71 % and 83.28 %. In conclusion, the introduction of ZIF-8 and ZIF-67 catalysts effectively catalyzed the CO 2 capture process, significantly enhancing the CO 2 capture quantity of MEA and ensuring energy-efficient regeneration of MEA. This study provides a novel approach for improving the performance of MEA in terms of capturing CO 2 .
研究领域:
化学工程
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环境科学
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材料科学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）