Batteries & Supercaps
·
2023
·Vol. 6
·期 7
·e202300145
·
IF 5.7
Mengmeng Liu,Yan Zhang,Zhao Xu,Xuguang Han,Wenshan Gou,Yifei Sun,Chang Ming Li
Graphical Microporous biomass carbon : The Enteromorpha-derived nitrogen-doped highly microporous carbon (HMCs) was prepared by carbonization and activation. Due to the high specific surface area, rich pore structure and nitrogen doping of HMCs, HMCs-3@S/SeS 2 cathode exhibits excellent cycling stability and rate performance in aqueous Zn-chalcogen batteries. Rechargeable aqueous zinc-chalcogen batteries have become a rising star in the energy storage systems due to the high abundance, low cost and high theoretical specific capacity of the chalcogen cathodes (S, Se). However, there are still some challenges in its practical application, such as low utilization of active substances due to the poor conductivity of chalcogen and sizable volume changes during charging/discharging. In this work, for the first time, nitrogen-doped highly microporous biomass-derived carbon (HMCs-3) was synthesized as a sulfur-loaded cathode for aqueous zinc-chalcogen batteries. A high specific surface area (3349.4 m 2 g −1 ) and a wealthy micropore of HMCs-3 provide enough space to load the active substances and allow electrolytes to access reaction sites while well alleviating the volume changes of sulfur during the cycling process. As a cathode for aqueous zinc-chalcogen batteries, HMCs-3@S delivers a high reversible discharge capacity (591 mAh g −1 at 0.1 A g −1 ), an excellent rate capability (477 mAh g −1 at 3 A g −1 ) and good cycling stability (559 mAh g −1 after 100 cycles at 1 A g −1 ). The excellent performance of this biomass-derived carbon holds great promise for practical applications in aqueous zinc-chalcogen batteries.
研究领域:
材料科学
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储能系统
·
电化学
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DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Tingting Yan,Yuying Zhang,Hengyu Lu,Jun Zhao,Chengrong Wen,Shuang Song,Chunqing Ai,Jingfeng Yang
An alcohol-induced liver injury model was induced in C57BL/6 mice to assess the protective efficacy of Enteromorpha prolifera polysaccharides (EP) against liver damage. Histological alterations in the liver were examined following hematoxylin-eosin (H&E) staining. Biochemical assay kits and ELISA kits were employed to analyze serum and liver biochemical parameters, as well as the activity of antioxidant enzymes and alcohol metabolism-related enzymes. The presence of oxidative stress-related proteins in the liver was detected using western blotting. Liquid chromatography and mass spectrometry were used to profile serum metabolites in mice. The findings demonstrated that EP-H (100 mg/Kg) reduced serum ALT and AST activity by 2.31-fold and 2.32-fold, respectively, when compared to the alcohol-induced liver injury group. H&E staining revealed a significant attenuation of microvesicular steatosis and ballooning pathology in the EP-H group compared to the model group. EP administration was found to enhance alcohol metabolism by regulating metabolite-related enzymes (ADH and ALDH) and decreasing CYP2E1 expression. EP also modulated the Nrf2/HO-1 signaling pathway to bolster hepatic antioxidant capacity. Furthermore, EP restored the levels of lipid metabolites (Glycine, Butanoyl-CoA, and Acetyl-CoA) to normalcy. In summary, EP confers protection to the liver through the regulation of antioxidant activity and lipid metabolites in the murine liver.
研究领域:
药理学
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毒理学
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分子生物学
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生物化学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
·
2021
·
IF 3.995
Xiaotong He,Junbin Liu,Biyu Kang,Xinye Li,Lingxing Zeng,Yanru Liu,Jianbin Qiu,Qingrong Qian,Mingdeng Wei,Qinghua Chen
SnS 2 has aroused great interests for application of sodium-ion batteries, because of its graphene-like structure and high theoretical capacity. Herein, we present an effective nanocasting strategy to fabricate the SnS 2 / enteromorpha prolifera derived carbon (SnS 2 /EPC) composite, whose microstructure anchors the SnS 2 nanosheets on enteromorpha prolifera (EP) derived carbon. It can effectively solve the problems of poor conductivity and volume expansion of SnS 2 electrode during charging and discharging process. The optimized SnS 2 /EPC could deliver high reversible capacity of 443 mA h g −1 at 0.1 A g −1 , and maintain reversible capacity of 340 mA h g −1 at high rate of 2 A g −1 after 450 cycles, indicating that SnS 2 /EPC is a promising anode material for sodium storage.
研究领域:
材料科学
·
能源存储
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Penghui Zhu,Bochen Pan,Chen Li,Benwei Zhu,Zhong Yao,Yun Sun
Green algal polysaccharides such as ulvan and Enteromorpha polysaccharides (EPs) with versatile physiological activities have drawn increasing attentions as a renewable biomass resource. However, their activities and applications have been greatly limited by its high molecular weight and low solubility. Herein, a novel polysaccharide lyase (PL) family 25 ulvan lyase, termed EPD2, has been identified, heterologously expressed and biochemically characterized to efficient preparation of ulvan and Enteromorpha oligosaccharides. It consisted of 446 amino acids with a molecular weight of 50.28 kDa and shared the highest identity with the ulvan lyases of PL25 family. The EPD2 exhibited optimal activity (1764.95 U/mg and 179.9 U/mg for ulvan and EPs, respectively) at 50 °C. It also exhibited robust salt tolerance and could maintain high activity under high NaCl concentrations (0.4–1.2 M). The molecular docking results indicated that EPD2 produce oligosaccharides with degrees of polymerization (DPs) of 2–4 in an endolytic manner. To expand its applications, EPD2 was then immobilized onto sodium alginate and its structure was characterized. After immobilization, its stability at 40 °C was significantly enhanced. This research enriched the enzyme tools library for degrading Enteromorpha polysaccharide and facilitates the expanded application of these enzymes in preparation of oligosaccharides.
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DOI
PubMed
高影响因子
Frontiers of Environmental Science & Engineering
·
2018
·Vol. 12
·期 3
·1-8
·
IF 1.961
Sun Jianzhang,Gao Baoyu,Luo Yuanxia,Xue Moxi,Xu Xing,Yue Qinyan,Wang Yan
Enteromorpha polysaccharide (Ep) extracted from alga a novel green coagulant aid for nanoparticles (NPs) and heavy metal ions removal and the structure of EP was intensively studied in this study. The integration of Ep with polyaluminum chloride (PAC-Ep) coagulants exhibited higher coagulation performance than that of the polyaluminum chloride (PAC) because of the negatively charged NPs suspension and humic aid (HA) solution. Significant high removal efficiencies of dissolved organic matter (94.1%), turbidity (99.3%) and Zn ions (69.3%) were achieved by the PAC-Ep coagulants. The dual-coagulation properties of PAC-Ep for different pollutants was based on multiple mechanisms, including (i) Al 3+ charge neutralization; (ii) hydroxy aluminum hydroxyl bridging formed polynuclearhydroxy complexes bridge and sweep colloidal particles; (iii) adsorption and bridging of Ep chain for the NPs and heavy metal ions. Results indicated that the destabilization of colloid was induced by the coexisting HA and higher removal was achieved as ions adsorption was enhance in the presence of HA complexation. On the basis of that, the extraction of polysaccharide is a promising candidate for its high coagulation performance in water treatment.
研究领域:
环境科学
·
水处理技术
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DOI
高影响因子
FUEL
·
2020
·
IF 5.578
Xianyao Yan,Yingjie Li,Chaoying Sun,Zeyan Wang
In this work, H 2 production performances from Enteromorpha prolifera and its char by absorption-enhanced steam gasification using Ce-doped CaO material were investigated. The Ce-doped CaO material improves the H 2 production from Enteromorpha prolifera by steam gasification, which achieves 79.0 vol% H 2 in the syngas. The Ce-doped CaO material with the mass ratio of CeO 2 /CaO = 10:90 seems more appropriate for high H 2 production, tar and char conversion. The presence of CeO 2 leads to good cyclic stability in H 2 production from Enteromorpha prolifera char during the gasification/calcination cycles. After 20 cycles, H 2 concentration and yield from Enteromorpha prolifera char achieve 77.8 vol% and 141.8 mL/g using Ce-doped CaO material, respectively. The CeO 2 facilitates the conductivity of electrons in CaO surface due to the existence of Ce 3+ species, thus CO 2 capture, water gas shift, and steam methane reforming reactions are promoted by CeO 2 . The Ce-doped CaO material maintains the porous microstructure and fine particles during the cycles due to the support of CeO 2 . Therefore, H 2 productions from Enteromorpha prolifera and its char by absorption-enhanced steam gasification using Ce-doped CaO material appear promising.
研究领域:
能源与环境科学
·
生物质能
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产品关联
DOI
高影响因子
RENEWABLE ENERGY
·
2025
·
IF 9.1
Liqiang Zhang,Ningmin Zhu,Yuxiang Liu,Honglei Shi,Yiya Wang,Ruiqi Liu,Riyi Lin
A two-stage co-pyrolysis approach was developed for the efficient utilization of marine waste plastics and biomass, with a focus on the influence of biomass components. HZSM-5 was modified with Cu via wet impregnation and applied in the catalytic co-pyrolysis of Enteromorpha and polypropylene under varying catalyst-to-feedstock ratios. The Cu/HZSM-5 catalyst was characterized using X-ray diffraction (XRD), N 2 adsorption, and scanning electron microscopy (SEM). The results showed that Cu modification preserved the HZSM-5 framework while increasing pore size, enhancing catalytic cracking efficiency. Thermogravimetric and kinetic analyses revealed that Cu/HZSM-5 lowered the pyrolysis temperature, reduced residues, improved synergy, and decreased activation energy without altering the reaction mechanism. The catalyst significantly reduced oxygenated compounds and enhanced the formation of aromatic hydrocarbons in the oil products, reaching a maximum aromatic content of 90.20 % at a 6:5 catalyst-to-feedstock ratio in the second stage. Under the same conditions, hydrogen production in the gas phase also peaked at 47.91 %. Increased catalyst dosage decreased carbon and hydrogen content in the char while raising oxygen and nitrogen levels, with a higher H/C ratio mitigating char aromatization and densification. A reaction mechanism for Enteromorpha and polypropylene over Cu/HZSM-5 was proposed. This study provides insights into the catalytic co-pyrolysis of marine waste plastics and biomass with complex compositions.
研究领域:
化学工程
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环境科学
·
材料科学
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DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2022
·
IF 8.025
Chuang Zhang,Jiahui Wu,Xu Qiu,Jie Zhang,Huiqi Chang,Haifeng He,Lifen Zhao,Xin Liu
This study presents the preparation of cellulose micro-nanofibrils (CMNFs) from Enteromorpha (EP) and the application in PVA/acetylated distarch phosphate (ADSP)/CMNFs composite films. The Micro-nano scale, hydrophilicity, and strong hydrogen bond characteristics of CMNFs prepared form EP by acid hydrolysis were confirmed through the granular statistics, XRD analysis and chemical structure analysis. With the addition of CMNFs, the ultimate tensile strength and elongation at break of composite films are increased by 42.4 % and 90.3 %. An original Weibull statistical analysis shows the impact of CMNFs' added amount on strength distribution and ultimate stress. SEM and polarizing microscope images show the CMNFs' dispersion state in that films is optimal, when their addition was to be 2 %–3 % of total dry weight of PVA/ADSP matrix， which is consistent with the results of Weibull modulus analysis. The main thermal weight-loss process of the composite film is divided into four stages, CMNFs can significantly increase the thermostability at 280 °C to 400 °C. The experiment of water contact angle and water vapor transmission rate of the composite films confirmed that CMNFs can improve films' hydrophilicity. This study provides basis for the preparation of hydrophilic CMNFs and mechanism of modification study PVA-based composites.
研究领域:
材料科学
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生物化学
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产品关联
DOI
PubMed
高影响因子
CHEMOSPHERE
·
2018
·
IF 4.427
Yuanxia Luo,Baoyu Gao,Qinyan Yue,Ruihua Li
Humic acid (HA) influences the aggregation and stability of nanoparticles (NPs), which determine the removal performance of NPs in coagulation. Consequently, in this study, the impact of HA concentration on the simultaneous removal of CuO NPs, Cu 2+ , and natural organic matter (NOM) was investigated. Enteromorpha polysaccharides (Ep), as the novel recycling coagulant aid, were integrated with polyaluminum chloride (PAC) to treat composite contaminants in this coagulation process. Removal performance, floc properties, zeta potential , scanning electron microscope (SEM) images, and Fourier Transform Infrared Spectra (FT-IR) were measured and analyzed. Results showed that PAC with Ep (PAC-Ep) was more beneficial for improving removal performances than PAC alone. Further, the coagulation performance became better with the increase in HA concentration. When the HA concentration was 10 mg/L (used PAC-Ep), the removal efficiencies of CuO NPs and Cu 2+ were both more than 80%; and in particular, the highest removal efficiency of turbidity was 98%. However, excessive HA (more than 10 mg/L) reduced the removal efficiency of Cu by more than 31%. Smaller and denser flocs with better recoverability were formed as the HA concentration increased. Furthermore, because of affluent functional groups, HA was easily adsorbed on the surface of NPs and combined with dissociative Cu 2+ , thereby forming a composite contaminant. During the coagulation process, the colloidal system was destabilized preferentially by the charge neutralization between composite contaminants and PAC. Furthermore, a chelated reticular structure was formed by the conjunction of carboxyl and hydroxyl groups (from Ep) and Al (III) species (from PAC). Flocs were further enlarged and precipitated by bridging and sweeping of this structure.
研究领域:
环境科学
·
水处理
·
纳米技术
·
化学工程
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DOI
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
·
2024
·
IF 4.3
Jingran Li,Wen Zhu,Le Gao,Xuetao Liang,Qi Yang
This study successfully synthesized magnetic iron-manganese biochar (F1M3BC) and iron-manganese chitosan biochar (Chi-F1M3BC) using Enteromorpha prolifera (EP) as the raw material, aiming to efficiently remove hexavalent chromium (Cr(VI)) from water. Compared to F1M3BC, Chi-F1M3BC, after chitosan cross-linking encapsulation, exhibited significant advantages in terms of specific surface area, pH adaptability, and adsorption performance. The specific surface area of Chi-F1M3BC reached 101.47 m³/g, approximately double that of F1M3BC (52.89 m³/g), making it rich in reactive groups for Cr(VI) removal. The addition of chitosan elevated the pH pzc value of Chi-F1M3BC from 5.5 to 9, and the abundant active groups enabled it to efficiently remove Cr(VI) over a wider pH range. Under 30 °C conditions, 0.5 g/L of Chi-F1M3BC could completely remove 30 mg/L of Cr(VI) solution within 1 h. Adsorption isotherm and kinetic studies indicated that Chi-F1M3BC complied with the Langmuir model and pseudo-second-order kinetics. At 30 °C, the adsorption capacity of Chi-F1M3BC reached 104.5 mg/g, approximately twice that of F1M3BC (58.93 mg/g). Moreover, after five consecutive usage cycles, the removal efficiency of Cr(VI) by Chi-F1M3BC only slightly decreased by 3%, demonstrating its superior stable removal performance. Subsequent characterization and experimental investigations elucidated the elimination of Cr(VI) by Chi-F1M3BC, achieved through the synergistic interplay of ion exchange, electrostatic attraction involving surface hydroxyl and amino functional groups, chelation, and the reduction of iron and manganese oxides. In conclusion, the synthesized Chi-F1M3BC has demonstrated its efficiency and stable adaptability in removing Cr(VI), coupled with the additional benefit of utilizing waste Enteromorpha prolifera.
研究领域:
环境科学
·
材料科学
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产品关联
DOI
高影响因子
Biomass Conversion and Biorefinery
·
2026
·Vol. 16
·期 1
·13
·
IF 4.1
Chen Yunyi,Li Yingchao,Jiang Guiping,Liu Hanqi,Yin Xiaofei,Lu Zhaoxia,Ju Peng
To address the ecological problem caused by the accumulation of green tide Enteromorpha prolifera and the challenge of remediating organic pollutants in water bodies, this study utilized Enteromorpha prolifera as raw materials to synthesize a novel nitrogen-doped biochar (NBPBC) catalyst through ball-milling and pyrolysis. The resulting catalyst was applied to activate peroxymonosulfate (PMS) for antibiotic tetracycline (TC) degradation. The optimized NBPBC exhibited a large specific surface area (62.0022 m 2 /g) and a high content of graphitic nitrogen. Experimental results showed that the NBPBC/PMS system achieved 100% removal efficiency towards TC within 60 min with a rate constant k = 0.06629 min − 1 , significantly outperforming systems without ball-milling or nitrogen doping. Additionally, NBPBC maintained good a catalytic activity and stability after six cycles, with the TC degradation efficiency remaining above 80%. Mechanistic studies revealed that the catalytic mechanism was dominated by ∙O 2 − , with synergistic contributions from ∙OH, 1 O 2 and SO 4 ∙ − . This work achieves the high-value utilization of Enteromorpha prolifera waste and provides an efficient strategy for aquatic organic pollutant remediation, offering a dual-win solution to ecological and environmental challenges. Graphical abstract A novel N-doped biochar catalyst based on Enteromorpha prolifera was synthesized through a ball-milling and single-step pyrolysis method, which can effectively activate PMS to realize the rapid degradation of organic pollutants and the high-value utilization of Enteromorpha prolifera .
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高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2024
·
IF 5.7
Tingting Yan,Jinghe Sun,Yuying Zhang,Chengrong Wen,Jingfeng Yang
Enteromorpha prolifera polysaccharide (EP2) protection against acute alcoholic liver injury (AALI) in mice was investigated. By integration of physiological indicators, gut microbiota, and short-chain fatty acids (SCFAs), the mechanism of EP2 in alleviating AALI was disclosed. The results showed that EP2 significantly ameliorated alcohol-induced abnormal transaminase activities, liver and intestinal systemic inflammation, and intestinal environmental disorders. EP2 significantly reduces liver and serum LPS contents by 1.69-fold and 1.54-fold. Furthermore, inhibition of the NF-κB signaling pathway by EP2 reduced the production of proinflammatory cytokines such as TNF-α (1.83-fold), IL-6 (11.09-fold), and IL-1β (1.99-fold). EP2 restored SCFAs to normal levels by upregulating the abundance of beneficial bacteria (Colidextribacter, Ruminococcus, unclassified_Lachnospiraceae, and Akkermansia). The alleviation of AALI by EP2 occurs through protection of the intestinal mucosal barrier and reduction of LPS permeating in serum. The decrease in LPS inactivates the NF-κB signaling pathway and prevents inflammation. In short, EP2 regulates the gut–liver axis and inflammation, alleviating effects in AALI mice.
研究领域:
药理学
·
肝病学
·
微生物学
·
免疫学
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）