KEY ENGINEERING MATERIALS
·
2014
·
IF 0
Jin Jia,Yuan Yuan Zhu,Ya Fei Zhang,Ruo Yu Chen,Bao Lin Xing,Ai Guo Zhou
Carbide-derived carbons (CDCs) are produced from carbides by removing non-carbon elements in the process of selective etching. In this paper, CDC was prepared from TiC by chlorination at the temperature range of 600~1100°C. In the chlorinating process, carbide-derived carbon with different microstructure was obtained by controlling the reaction temperature. The structures of CDC were revealed with X-ray diffraction and Raman spectroscopy. The morphologies of CDC were analyzed by scanning electron microscope. From X-ray diffraction analysis, the CDC obtained from TiC in this experiment mainly consisted of amorphous carbon. Basing on scanning electron microscopy, carbide-derived carbon from TiC maintained the shape and size of TiC particles. Keywords: Carbide-derived carbons; chlorination; TiC
研究领域:
材料科学
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化学工程
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DOI
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
·
2022
·Vol. 23
·期 19
·11202
·
IF 6.208
Yuting Xiao,Ruixiao Luo,Yansong Ji,Shiwei Li,Hongmei Hu,Xiaoning Zhang
Sericin is a by-product of the silk industry. Its recycling contributes to environmental protection and the sustainable development of the cocoon silk industry. In this paper, on the basis of realizing sericin enrichment in solution, the Cu(II) adsorption capacities of sericin-derived carbon (SC), prepared at different pyrolysis temperatures, were studied. SC was characterized using scanning electron microscopy (SEM) and the zeta potential. The effects of the initial concentration of Cu(II), pH, adsorption temperature, and contact time on the adsorption process were evaluated, followed by an investigation of the mechanism of Cu(II) adsorption by SC. The results showed that SC has a porous structure that provides sites for Cu(II) adsorption. The maximum adsorption capacity of Cu(II) onto SC1050, 17.97 mg/g, was obtained at an adsorption temperature of 35 °C and a pH of 5.5. In addition, the pseudo-second-order kinetic model and Langmuir isotherm model correctly described the adsorption process of Cu(II) onto SC1050. Therefore, SC can act as a potential adsorbent for removing Cu(II) from water. This study helps promote the effective use of cocoon silk resources.Keywords:silk sericin;sericin-derived carbon;copper(II);adsorption
研究领域:
环境科学
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材料科学
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化学工程
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产品关联
DOI
PubMed
高影响因子
Nanoscale Advances
·
2021
·Vol. 3
·期 16
·4858-4865
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IF 4.553
Hongqiang Wang,Xin Li,Jiming Peng,Yezheng Cai,Juantao Jiang,Qingyu Li
Rational interface control of porous carbon electrode materials is of significance for achieving efficient supercapacitors. Herein, biomass-derived carbon microspheres with a highly graphitized porous surface and amorphous subsurface were well constructed via a flexible coupled catalysis-activation process. The unique structure not only endows the carbon microspheres with rapid electron transfer but also an ultra-high specific surface area. Owing to the optimized graphitized/amorphous structure, the obtained graphitized and activated starch-derived carbon microspheres display obviously impressive energy storage capability among the reported starch-derived carbon materials, even though they were evaluated in a narrow voltage window. The assembled symmetrical supercapacitor based on the optimized carbon microspheres exhibits a high capacitance of 198 F g−1 at 1 A g−1, a high energy density of 14.67 W h kg−1 at a power density of 4142.80 W kg−1, robust cycle performance, and good rate performance in alkaline aqueous electrolyte. This work provides a strategy for flexible construction of biomass-derived carbon electrode materials, with an optimized graphitized/amorphous and porous structure, for boosted energy storage in supercapacitor applications.
研究领域:
材料科学
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电化学
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能源存储
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2021
·
IF 8.128
Yang Li,Zhi Liu,Zhao Li,Qiu Wang
Constructing noble metal-doped g-C 3 N 4 /carbon composites is a feasible route to overcome the intrinsic drawbacks of pristine g-C 3 N 4 for enhanced activity of CO 2 photoreduction. Herein, a novel Ag-doped g-C 3 N 4 /biomass-derived carbon composite with hollow bird's nest-like (Ag-g-C 3 N 4 /BN-C) is designed and prepared via a simple yet effective one-step pyrolysis method. In the Ag-g-C 3 N 4 /BN-C, the highly-dispersed Ag nanoparticles (20–30 nm) with the surface plasmon resonance (SPR) effect act as a significant cocatalyst not only to efficiently trap the photogenerated electrons from g-C 3 N 4 to boost the separation of photogenerated electron-hole pairs but also to produce additional active “hot electrons”, while the conductive quasi-spherical hollow structure of BN-C doubles the specific surface area with multiple reflections of light, providing abundant active sites and more utilization efficiency of light energy. As a result, the Ag-g-C 3 N 4 /BN-C exhibits a remarkably enhanced CO evolution rate of 33.3 μmol·g −1 ·h −1 without addition of any sacrificial reagents and photosensitizers, superior to those of both the pristine g-C 3 N 4 and many reported g-C 3 N 4 -based counterparts. The findings of this work demonstrate a good indication for integrating g-C 3 N 4 with SPR-dependence noble metal and renewable biomass-derived carbon for enhanced CO 2 photoreduction, which may be extended to modify other semiconductor materials for more photocatalytic applications with enhanced activity.
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
APPLIED SURFACE SCIENCE
·
2021
·
IF 6.707
Chuanxu Hou,Junye Cheng,Huibin Zhang,Ziheng Lu,Xiuying Yang,Guangping Zheng,Deqing Zhang,Maosheng Cao
With the continuous advances in detection and early-warning technologies, stealth technologies have widely integrated in modern combat systems and armament research. The development of high-performance electromagnetic wave absorbing materials is important for electromagnetic stealth and shielding applications. Herein, biomass-derived carbon (BDC) from glucose is coated on the surface of folded and stacked WS 2 nanosheets, forming WS 2 @BDC via a simple hydrothermal method and subsequent annealing carbonization. The amount of the BDC coating on the WS 2 nanosheets is effectively controlled by the glucose solution concentration, and the electromagnetic wave (EMW) absorption performance in the low-frequency bands can be adjusted by the regulation of annealing temperature. The effective absorption band of WS 2 @BDC is shifted to a lower frequency region and the absorption performance is substantially enhanced, compared to those of pure WS 2 nanosheets. The minimum reflection loss of WS 2 @BDC corresponding to 14 mL of glucose and a carbonization temperature of 800 °C can reach up to −51.40 dB at 5.52 GHz. The study provides a novel and facile method for improving the EMW absorption performance of WS 2 in the low-frequency bands.
研究领域:
材料科学
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电磁学
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DOI
高影响因子
JOM
·
2020
·Vol. 72
·期 11
·3887-3894
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IF 2.054
Pang Zhongya,Zou Xingli,Tang Wei,Shi Tianyu,Wang Shujuan,Ji Li,Hsu Hsien-Yi,Xu Qian,Lu Xionggang
Carbide-derived carbon (CDC) as an unconventional porous carbon material has been widely used for various applications. In this work, Ti 3 AlC 2 -derived porous carbon (Ti 3 AlC 2 -CDC) was electrochemically synthesized at 900°C and 3.0 V in molten CaCl 2 -NaCl. The obtained Ti 3 AlC 2 -CDC with abundant slit-like mesopores showed a high specific surface area of 425 m 2 /g. The variation of the morphology from the Ti 3 AlC 2 precursor to Ti 3 AlC 2 -CDC was investigated, with the Ti 3 AlC 2 -CDC demonstrating a typical loose layered morphology and amorphous carbon structure. The intermediate products were also systematically analyzed to investigate the molten salt electrochemical etching process. It was found that Ti 3 AlC 2 can be oxidized by residual O 2− in the molten salt to form tiny Al 2 O 3 particles on the anodic Ti 3 AlC 2 surface during the etching process, then Ti 3 AlC 2 -CDC can be obtained by successively removing these Al 2 O 3 , Al, and Ti from the Ti 3 AlC 2 precursor.
研究领域:
材料科学
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电化学
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纳米材料
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能源材料
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表面工程
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DOI
高影响因子
Catalysis Science & Technology
·
2023
·Vol. 13
·期 4
·1128-1139
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IF 5
Peijing Guo,Shaoyu Yuan,Bingrong Guo,Siwei Li,Yongjun Gao
A CoO–CdS heterostructured photocatalyst CC-2-300 loaded with carbon derived from the biomass material chitosan was synthesized. Under visible-light irradiation, the photocatalytic hydrogen evolution rate can reach up to 10.60 mmol gcat−1 h−1, which is 7.21 times higher than that of pure CdS under the same conditions, with good cycle stability and high apparent quantum efficiency. The control experiments and characterization results prove that the chitosan-derived carbon supported CoO nanorods and CdS nanoparticles are cross-distributed to form a direct Z-scheme heterojunction, which improves the migration efficiency of photogenerated carriers and effectively slows down the recombination rate of photogenerated charges and holes on CdS that is susceptible to photocorrosion, thus improving the efficiency of photocatalytic hydrogen evolution.
研究领域:
材料科学
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能源科学
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环境科学
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产品关联
DOI
高影响因子
IONICS
·
2019
·Vol. 25
·期 12
·6051-6059
·
IF 2.289
Zhang Yanqing,Huang Yanli,Feng Chuanqi,Zhang Yimin,Wu Huimin
In this work, Co 3 O 4 was synthesized by a simple hydrothermal and subsequent calcination treatment for electrochemical detection of H 2 O 2 . In order to improve the electrochemical performance of Co 3 O 4 , it is compounded with the carbon materials derived from cypress leaves, loofah sponge, and pine needles. The electrochemical tests suggested that Co 3 O 4 /loofah sponge-derived carbon showed higher electrochemical activity towards H 2 O 2 than the other two composites. The sensor based on Co 3 O 4 /loofah sponge-derived carbon exhibited a broad linear range from 5.00 μM to 11.40 mM, with a sensitivity of 47.83 μA mM −1 cm −2 and a detection limit of 1.50 μM ( S / N = 3). Thus, this novel nonenzymatic sensor had potential application in H 2 O 2 detection.
研究领域:
材料科学
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分析化学
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2020
·
IF 10.652
Fang Wang,Ting Feng,Xiujuan Jin,Yulin Zhou,Yanjie Xu,Yahui Gao,Haisheng Li,Jianfei Lei
Herein, a robust MOFs-derived super-carbon embedding with single atom Co/Ni anode materials for LIBs is developed by one-step annealing of the core–shell precursor ZIF-8@ZIF-67 with the introduction of dimethylglyoxime nickel as Ni source. The characterization results clearly indicate that atomic Co/Ni active sites accompanied with suitable CoNi nanoparticles are evenly embedded in the MOF-derived hollow rich-nitrogen carbon matrix. Simultaneously, moderate short carbon nanotubes root in polyhedral surface under the catalytic effect from the CoNi nanoparticles and construct an advanced conductive network. As a result, it delivers a high reversible lithium-ion storage capacity of 462.1 mAh g −1 at a current density of 0.5 A g −1 over 500 cycles, excellent rate performance of 223.28 mAh g −1 even at a high current density of 2 A g −1 , which is much higher than most of reported carbon-based electrode materials. The enhanced lithium storage performance mainly derives from the moderate affinity of the Li by the atomic Co/Ni active sites incorporated with their powerful catalytic effect assisting MOF-derived rich-N doped carbon base. Moreover, the superior nano-structure of the hollow rich-nitrogen carbon skeleton with in-situ grown short carbon nanotubes improves the conductivity of electrode materials, relieves the volume expansion and accelerates the migration rate of lithium ions and electrons. The theoretical calculation further confirms the superior affinity of the Li on atomic Co/Ni active sties.
研究领域:
材料科学
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能源存储
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产品关联
DOI
高影响因子
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
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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
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能源存储
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产品关联
DOI
高影响因子
Materials
·
2024
·Vol. 17
·期 10
·2205
·
IF 3.1
Wei Zhang,Liyan Xue,Jincheng Zhang,Meng Zhang,Kaixian Wang,Minzhong Huang,Fan Yang,Zhengming Jiang,Tongxiang Liang
The use of solar interface evaporation for seawater desalination or sewage treatment is an environmentally friendly and sustainable approach; however, achieving efficient solar energy utilization and ensuring the long-term stability of the evaporation devices are two major challenges for practical application. To address these issues, we developed a novel ceramic fiber@bioderived carbon composite aerogel with a continuous through-hole structure via electrospinning and freeze-casting methods. Specifically, an aerogel was prepared by incorporating perovskite oxide (Ca0.25La0.5Dy0.25)CrO3ceramic fibers (CCFs) and amylopectin-derived carbon (ADC). The CCFs exhibited remarkable photothermal conversion efficiencies, and the ADC served as a connecting agent and imparted hydrophilicity to the aerogel due to its abundant oxygen-containing functional groups. After optimizing the composition and microstructure, the (Ca0.25La0.5Dy0.25)CrO3ceramic fiber@biomass-derived carbon aerogel demonstrated remarkable properties, including efficient light absorption and rapid transport of water and solutes. Under 1 kW m−2light intensity irradiation, this novel material exhibited a high temperature (48.3 °C), high evaporation rate (1.68 kg m−2h−1), and impressive solar vapor conversion efficiency (91.6%). Moreover, it exhibited long-term stability in water evaporation even with highly concentrated salt solutions (25 wt%). Therefore, the (Ca0.25La0.5Dy0.25)CrO3ceramic fiber@biomass-derived carbon aerogel holds great promise for various applications of solar interface evaporation.
研究领域:
材料科学
·
环境科学
·
能源科学
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产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Xiaoyan Zhang,Chunmei Gan,Kaiwei Huang,Fuying Li,Malin Cui,Kewei Liu,Xiaowan Yu,Da-Peng Yang
Bacterial infection has become the second leading cause of death in the world. Exploring a new highly antibacterial catalyst to replace traditional antibacterial agent is crucial for the society development of human beings. In this study, CuFe 2 O 4 /Lg-based carbon composited catalysts were rationally constructed by facile hydrothermal method. Lignin-derived carbon with enormous oxygen-containing functional group was beneficial to anchor CuFe 2 O 4 nanoparticles. The close contact interface between CuFe 2 O 4 and Lignin-based carbon material was expected to extend the range of optical absorption and promote the separation and transportation of photogenerated carriers. Under NIR (980 nm, 1.5 W/cm 2 ) light irradiation, the as-prepared CuFe 2 O 4 /Lg (20 μg/mL) exhibited excellent photo/photothermal synergetic in vitro (against Escherichia coli and Staphylococcus aureus ) and in vivo (against Staphylococcus aureus -infected mouse wound model) antibacterial performance. Furthermore, the cell count assay kit 8 (CCK-8 kit) demonstrated the good biocompatibility of this material. On the basis of the experimental results, a possible antibacterial mechanism based on the synergetic photothermal and photodynamic therapies was proposed. This work presented a lignin- derived carbon-based highly efficient antibacterial disinfection agent with desirable biosafety.
研究领域:
材料科学
·
生物医学工程
·
微生物学
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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）