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学者姓名:吕秋丰
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The intensification of industrial production has led to a sharp increase in the discharge of toxic organic chemicals and wastewater from printing and dyeing industry. In this study, flower-like ZnO modified TiO 2 @Ti 3 C 2 T x composites (ZnO/TiO 2 @Ti 3 C 2 T x ) were prepared by in -situ oxidation solvothermal method from zinc nitrate hexahydrate and tetramethylammonium hydroxide intercalated Ti 3 C 2 T x . During the solvothermal processes, sodium hydroxide acted as an etchant to further exfoliated the accordion -like Ti 3 C 2 T x into single or few -layer; and at the same time, TiO 2 was formed in -situ on the surface of Ti 3 C 2 T x with simultaneous deposition of flower-like ZnO. The layer structural Ti 3 C 2 T x facilitates the loading and dispersion of ZnO and TiO 2 on its surface. After the in -situ oxidation by solvothermal method, TiO 2 was evenly distributed on the surface of Ti 3 C 2 T x , adjusting the functional groups on the surface of the ZnO/TiO 2 @Ti 3 C 2 T x composite, and improving its adsorption performance. ZnO/TiO 2 @Ti 3 C 2 T x can be used as an efficient adsorbent for malachite green with a high maximum adsorption capacity of 1232.7 mg g -1 , which is higher than that of TiO 2 @Ti 3 C 2 T x (628.57 mg g -1 ). Moreover, a superhydrophilic and underwater superoleophobic ZnO/TiO 2 @Ti 3 C 2 T x @PU sponge was prepared by loading ZnO/TiO 2 @Ti 3 C 2 T x onto polyurethane (PU) sponge. The introduction of ZnO enhances the surface roughness of the ZnO/TiO 2 @Ti 3 C 2 T x @PU sponge, which can effectively separate six oil -water mixtures, and has a high separation flux of 171784 L m - 2 h -1 and separation efficiency of 99.6% for cyclohexane-water mixture.
Keyword :
Adsorption Adsorption Malachite green Malachite green MXene MXene Oil-water separation Oil-water separation TiO2 TiO2 ZnO ZnO
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GB/T 7714 | Zhang, Kai-Ning , Lei, Ze-Le , Lu, Qiu-Feng . Flower-like ZnO modified TiO2@Ti3C2Tx composite for efficient adsorption of malachite green and oil-water separation [J]. | JOURNAL OF CLEANER PRODUCTION , 2024 , 447 . |
MLA | Zhang, Kai-Ning 等. "Flower-like ZnO modified TiO2@Ti3C2Tx composite for efficient adsorption of malachite green and oil-water separation" . | JOURNAL OF CLEANER PRODUCTION 447 (2024) . |
APA | Zhang, Kai-Ning , Lei, Ze-Le , Lu, Qiu-Feng . Flower-like ZnO modified TiO2@Ti3C2Tx composite for efficient adsorption of malachite green and oil-water separation . | JOURNAL OF CLEANER PRODUCTION , 2024 , 447 . |
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Water-based biocarbon as an electrode material of supercapacitor for energy storage equipment has been widely studied because of its simple preparation, low cost, environmental friendliness and good cycle stability, but its low specific capacitance and energy density are the keys to hinder its development. In this study, 2D biocarbon nanosheets from kapok fibers were prepared via KOH activation. ACKF-2, an as-prepared activated biocarbon with an alkali-carbon mass ratio of 5:1, had a very high specific surface area of 3359.2 m2/g and a high pore volume of 2.1415 m3/g. Thus, ACKF-2 exhibits a high specific capacitance of 405 F/g at a current density of 1 A/g in a 6 mol/L KOH electrolyte. To further improve the electrochemical performance of ACKF-2, two redox additives, K3Fe(CN)6 and K4Fe(CN)6, were chosen as novel redox electrolytes. At a current density of 10 A/g, ACKF-2 showed a superhigh specific capacitance of 3380 F/g in the 1 mol/L H2SO4 electrolyte with adding K3Fe(CN)6 and K4Fe(CN)6. A symmetrical-supercapacitor device consisting of ACKF-2 and the new-type redox electrolyte can achieve an extremely high energy density of 264.1 Wh/kg at a high power density of 4593 W/kg. Therefore, this study provides a new energy storage scheme that can greatly improve the water-based carbon supercapacitor.
Keyword :
Activation Activation Biocarbon nanosheets Biocarbon nanosheets Kapok fiber Kapok fiber Redox additive Redox additive Supercapacitor Supercapacitor
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GB/T 7714 | Zheng, Xi , Lei, Ze-Le , Wang, Jun-Rui et al. Activated 2D biocarbon nanosheets from kapok fiber as an electrode material for supercapacitor with high energy density in redox electrolyte [J]. | BIOMASS & BIOENERGY , 2024 , 181 . |
MLA | Zheng, Xi et al. "Activated 2D biocarbon nanosheets from kapok fiber as an electrode material for supercapacitor with high energy density in redox electrolyte" . | BIOMASS & BIOENERGY 181 (2024) . |
APA | Zheng, Xi , Lei, Ze-Le , Wang, Jun-Rui , Lue, Qiu-Feng . Activated 2D biocarbon nanosheets from kapok fiber as an electrode material for supercapacitor with high energy density in redox electrolyte . | BIOMASS & BIOENERGY , 2024 , 181 . |
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创新创业教育与专业教育融合是创新人才培养、专业内涵发展和创新创业教育发展的必然要求.针对目前两者融合不够深入的问题,福州大学高分子材料与工程专业从教育理念、师资队伍、课程设置和教学管理等方面进行改革探索,以期实现高质量人才培养目标,为科学研究和区域经济发展提供有力支撑.
Keyword :
专业教育 专业教育 创新创业教育 创新创业教育 教学改革 教学改革
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GB/T 7714 | 吕秋丰 , 黄艳 , 林起浪 et al. 创新创业教育与专业教育融合的探索 [J]. | 化工高等教育 , 2024 , 41 (4) : 51-57 . |
MLA | 吕秋丰 et al. "创新创业教育与专业教育融合的探索" . | 化工高等教育 41 . 4 (2024) : 51-57 . |
APA | 吕秋丰 , 黄艳 , 林起浪 , 林腾飞 . 创新创业教育与专业教育融合的探索 . | 化工高等教育 , 2024 , 41 (4) , 51-57 . |
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创新创业教育与专业教育融合是创新人才培养、专业内涵发展和创新创业教育发展的必然要求。针对目前两者融合不够深入的问题,福州大学高分子材料与工程专业从教育理念、师资队伍、课程设置和教学管理等方面进行改革探索,以期实现高质量人才培养目标,为科学研究和区域经济发展提供有力支撑。
Keyword :
专业教育 专业教育 创新创业教育 创新创业教育 教学改革 教学改革
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GB/T 7714 | 吕秋丰 , 黄艳 , 林起浪 et al. 创新创业教育与专业教育融合的探索——以福州大学高分子材料与工程专业为例 [J]. | 化工高等教育 , 2024 , 41 (04) : 51-57 . |
MLA | 吕秋丰 et al. "创新创业教育与专业教育融合的探索——以福州大学高分子材料与工程专业为例" . | 化工高等教育 41 . 04 (2024) : 51-57 . |
APA | 吕秋丰 , 黄艳 , 林起浪 , 林腾飞 . 创新创业教育与专业教育融合的探索——以福州大学高分子材料与工程专业为例 . | 化工高等教育 , 2024 , 41 (04) , 51-57 . |
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为培养适应社会发展需要的应用型创新人才,文章针对高分子化学实验课程传统教学存在的问题,提出了一种虚拟仿真实验教学与传统实验教学相结合的实验教学模式。该教学模式的实施,有助于弥补传统实验教学的不足,激发学生的学习兴趣,锻炼学生的实践能力和创新思维,提高教学质量和效率,促进应用型创新人才的培养。
Keyword :
实验教学 实验教学 虚实结合 虚实结合 虚拟仿真 虚拟仿真 高分子化学实验 高分子化学实验
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GB/T 7714 | 张夏兰 , 吕秋丰 , 靳艳巧 et al. 虚实结合的高分子化学实验课程教学改革探索 [J]. | 化工高等教育 , 2024 , 41 (04) : 142-149 . |
MLA | 张夏兰 et al. "虚实结合的高分子化学实验课程教学改革探索" . | 化工高等教育 41 . 04 (2024) : 142-149 . |
APA | 张夏兰 , 吕秋丰 , 靳艳巧 , 林起浪 . 虚实结合的高分子化学实验课程教学改革探索 . | 化工高等教育 , 2024 , 41 (04) , 142-149 . |
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Nickel‑cobalt layered double hydroxide (NiCo-LDH) has received much attention in the field of supercapacitor electrodes due to its multiple oxidation states and good electrochemical activity. However, NiCo-LDH often suffers from structural instability and low conductivity in practical applications. In this study, sea urchin-like structural NiCo-LDH coated cobalt‑nitrogen co-doped carbon (NiCo-LDH@Co-NC-x) electrode materials were prepared by in situ growth of NiCo-LDH on the surface of cobalt‑nitrogen co-doped carbon nanosheets (Co-NC) using a one-step hydrothermal method. The results show that the NiCo-LDH@Co-NC-2 electrode material exhibits excellent electrochemical performance, its specific capacitance is up to 1909 F g−1 at a current density of 1 A g−1, and capacitance retention of 69.5 % (only 26.2 % for NiCo-LDH) can be achieved after 10,000 cycles at a current density of 10 A g−1. This is because the abundant and uniformly distributed Co nanoparticles on Co-NC provide nucleation sites for the in-situ growth of NiCo-LDH, effectively improving the interface binding between Co-NC and NiCo-LDH, enhancing the structural stability of NiCo-LDH, and ensuring highly efficient electron transport throughout the NiCo-LDH@Co-NC-2 electrode. An asymmetric supercapacitor (NiCo-LDH@Co-NC-2//AC) was further assembled with NiCo-LDH@Co-NC-2 and activated carbon (AC) as positive and negative electrodes, respectively, achieving an energy density as high as 36.8 Wh kg−1 at a power density of 750 W kg−1. These findings suggest that the NiCo-LDH@Co-NC-2 composite can be a promising candidate for high-performance supercapacitor electrode. © 2024 Elsevier Ltd
Keyword :
Carbon nanosheets Carbon nanosheets Nickel‑cobalt layered double hydroxide Nickel‑cobalt layered double hydroxide Supercapacitor Supercapacitor
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GB/T 7714 | Fu, Y.-G. , Li, Y.-H. , Lü, Q.-F. . In situ construction of sea urchin-like structural NiCo-LDH coated cobalt‑nitrogen co-doped carbon as high-performance electrode for supercapacitor [J]. | Journal of Energy Storage , 2024 , 100 . |
MLA | Fu, Y.-G. et al. "In situ construction of sea urchin-like structural NiCo-LDH coated cobalt‑nitrogen co-doped carbon as high-performance electrode for supercapacitor" . | Journal of Energy Storage 100 (2024) . |
APA | Fu, Y.-G. , Li, Y.-H. , Lü, Q.-F. . In situ construction of sea urchin-like structural NiCo-LDH coated cobalt‑nitrogen co-doped carbon as high-performance electrode for supercapacitor . | Journal of Energy Storage , 2024 , 100 . |
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Ti3C2Tx-based modified separation materials are widely used in the field of wastewater separation, but most of them have poor fluxes. Here, grafting of L-cysteine and L-histidine onto polydopamine-pretreated Ti3C2Tx surface was used to obtain amino acid-modified Ti3C2Tx (L-CPT and L-HPT), respectively, by covalent and non-covalent bonds under mild conditions, enriching variety and number of hydrophilic groups on the Ti3C2Tx surface. Polyurethane sponge (PU) coated with L-CPT and L-HPT (L-CPTPU and L-HPTPU) exhibit excellent underwater oleophobicity and show impressive separation efficiency (>99.4%) for various oil-water mixtures. Especially, LCPTPU and L-HPTPU achieved high-throughput separation for cyclohexane-water mixtures with maximum permeation fluxes of 220,319 and 222,197 L m-2 h-1, respectively, and had excellent resistance to corrosive media. Besides, polyamide membranes modified with L-CPT and L-HPT (L-CPTPA and L-HPTPA) form abundant permeation channels, achieving high-efficiency separation for toluene in water emulsion with separation efficiency greater than 99.1%. In addition, L-CPTPA and L-HPTPA exhibited remarkable rejection (>99.1%) and high permeability (>1100 L m-2 h-1 bar-1) for 20 mg L-1 malachite green solution. Therefore, the amino acidmodified Ti3C2Tx can functionally modify PU and PA substrates toseparate oily wastewater and dye wastewater, respectively.
Keyword :
Amino acid Amino acid Dye separation Dye separation High-throughput High-throughput Oily wastewater separation Oily wastewater separation
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GB/T 7714 | Wang, Qing-Ming , Lin, Jin-Chang , Liu, Zhen-Hui et al. Covalently grafted amino acid-modified Ti3C2Tx to construct an interface for separation of oily wastewater and dye wastewater [J]. | CERAMICS INTERNATIONAL , 2023 , 49 (11) : 17437-17452 . |
MLA | Wang, Qing-Ming et al. "Covalently grafted amino acid-modified Ti3C2Tx to construct an interface for separation of oily wastewater and dye wastewater" . | CERAMICS INTERNATIONAL 49 . 11 (2023) : 17437-17452 . |
APA | Wang, Qing-Ming , Lin, Jin-Chang , Liu, Zhen-Hui , Lu, Qiu-Feng . Covalently grafted amino acid-modified Ti3C2Tx to construct an interface for separation of oily wastewater and dye wastewater . | CERAMICS INTERNATIONAL , 2023 , 49 (11) , 17437-17452 . |
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At present, the development of cheap and efficient electrocatalytic hydrogen evolution catalyst is of great sig-nificance to the industrialization of hydrogen energy. In this work, Mo2TiC2Tx was firstly obtained by etching Mo2TiAlC2 with hydrofluoric acid (HF), and then CoS2 nanoparticles were grown on the surface of Mo2TiC2Tx to prepare CoS2@Mo2TiC2Tx catalyst by one-pot hydrothermal method. The hydrothermal vulcanization method for the preparation of CoS2@Mo2TiC2Tx electrocatalyst not only saves the experimental cost but also has higher vulcanization efficiency. Due to the synergistic effect of CoS2 and Mo2TiC2Tx, the CoS2@Mo2TiC2Tx catalyst exhibited good hydrogen evolution reaction catalytic activity in 0.5 M H2SO4; at a current density of 10 mA/cm2, the overpotential is only 132 mV, and the Tafel slope is 116 mV/dec. Besides, due to its unique morphology, CoS2@Mo2TiC2Tx still exhibits good durability after 24 h of continuous electrolysis. Therefore, this work pro-vides a possibility to realize non-precious metal electrocatalyst to replace Pt/C.
Keyword :
CoS2 CoS2 Electrocatalyst Electrocatalyst Hydrogen evolution reaction Hydrogen evolution reaction Mo2TiC2Tx Mo2TiC2Tx
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GB/T 7714 | Chen, Xiao-Liang , Liu, Cong , Tang, Chou-Kun et al. CoS2 nanoparticles grown on Mo2TiC2Tx as an efficient electrocatalyst for hydrogen evolution reaction [J]. | DIAMOND AND RELATED MATERIALS , 2023 , 135 . |
MLA | Chen, Xiao-Liang et al. "CoS2 nanoparticles grown on Mo2TiC2Tx as an efficient electrocatalyst for hydrogen evolution reaction" . | DIAMOND AND RELATED MATERIALS 135 (2023) . |
APA | Chen, Xiao-Liang , Liu, Cong , Tang, Chou-Kun , Liu, Zhen-Hui , Lue, Qiu-Feng , Jin, Yanqiao . CoS2 nanoparticles grown on Mo2TiC2Tx as an efficient electrocatalyst for hydrogen evolution reaction . | DIAMOND AND RELATED MATERIALS , 2023 , 135 . |
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Molybdenum disulfide (MoS2) has a Gibbs free energy comparable to platinum (Pt), suggesting it can replace Pt as a hydrogen evolution reaction (HER) catalyst. However, the shortcomings of the restricted number of MoS2 active sites and poor intrinsic electrical conductivity have resulted in impeding its widespread application. In this work, Co/MoS2@NPC electrocatalyst was prepared by using nitrogen-doped porous carbon (NPC) as a substrate material, and then hydrothermally anchoring cobalt-doped molybdenum disulfide (Co-doped MoS2) on the substrate. Co/MoS2@NPC was subsequently applied to hydrogen evolution reaction in acidic and alkaline media. It was found that the overpotential of 0.2Co/MoS2@NPC was only 139 mV for HER at 10 mA cm (-2) with a Tafel slope of 69 mV dec (-1) in acidic medium; while in alkaline medium, its overpotential was 163 mV with a Tafel slope of 106 mV dec (-1), and it operated stably over 10 h. The superior HER performance may be related to the point that NPC as a substrate can uniformly disperse MoS2, exposing more active sites and ensuring high electronic conductivity of MoS2. In addition, the introduction of Co into MoS2 changed the intrinsic activity of MoS2 and interacted with CoSx and pyridine nitrogen in NPC, constituting a ternary catalytic interaction. Therefore, this study provides a novel strategy for optimizing the HER activity of MoS2.
Keyword :
Co-doping Co-doping Hydrogen evolution reaction Hydrogen evolution reaction MoS2 MoS2 N-doped carbon N-doped carbon
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GB/T 7714 | Fu, Yu-Gang , Liu, Han-Qiao , Liu, Cong et al. Ultralight porous carbon loaded Co-doped MoS2 as an efficient electrocatalyst for hydrogen evolution reaction in acidic and alkaline media [J]. | JOURNAL OF ALLOYS AND COMPOUNDS , 2023 , 967 . |
MLA | Fu, Yu-Gang et al. "Ultralight porous carbon loaded Co-doped MoS2 as an efficient electrocatalyst for hydrogen evolution reaction in acidic and alkaline media" . | JOURNAL OF ALLOYS AND COMPOUNDS 967 (2023) . |
APA | Fu, Yu-Gang , Liu, Han-Qiao , Liu, Cong , Lue, Qiu-Feng . Ultralight porous carbon loaded Co-doped MoS2 as an efficient electrocatalyst for hydrogen evolution reaction in acidic and alkaline media . | JOURNAL OF ALLOYS AND COMPOUNDS , 2023 , 967 . |
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总结了环氧树脂在低温环境下的增韧方法,即固化剂的选择、热塑性聚合物增韧改性环氧树脂、纳米材料增韧改性环氧树脂、超支化聚合物增韧改性环氧树脂和碳纤维增韧改性环氧树脂,对近几年国内外环氧树脂低温增韧研究成果和改性环氧树脂力学性能模拟分析进行综述.最后,对环氧树脂低温增韧研究的发展趋势作出了展望.
Keyword :
分子动力学 分子动力学 柔性链段 柔性链段 环氧树脂 环氧树脂 纳米材料 纳米材料 超支化聚合物 超支化聚合物
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GB/T 7714 | 林锦昌 , 亓海霞 , 陈凯锋 et al. 环氧树脂低温增韧研究进展 [J]. | 中国涂料 , 2023 , 38 (2) : 38-42,66 . |
MLA | 林锦昌 et al. "环氧树脂低温增韧研究进展" . | 中国涂料 38 . 2 (2023) : 38-42,66 . |
APA | 林锦昌 , 亓海霞 , 陈凯锋 , 吕秋丰 . 环氧树脂低温增韧研究进展 . | 中国涂料 , 2023 , 38 (2) , 38-42,66 . |
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