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学者姓名：庄建东
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Abstract ：
Lignin, a complex natural 3D aromatic polymer compound known for its high thermal stability, stiffness, and ability to effectively withstand chemical and biological attacks. When combined with various other natural biomass components, lignin can offer the promise of fortifying the physical, chemical, and biological stability of matrix materials, which has garnered significant interest. Herein, through the incorporation of alginate with aminated lignin using chemical and ionic double cross-linking and freeze-drying techniques, alginate-lignin composite functional foams (SA-NAL) with improved water affinity, mechanical strength, and overall service performance have been successfully developed. Without further chemical modification, the as-fabricated SA-NAL composite foam demonstrates: i) outstanding mechanical robustness, enduring 2000 times its weight without significant deformation in dry condition, and withstanding tensile stress up to 0.67 MPa in wet condition, ii) superior water affinity and underwater superoleophobicity (theta(oil) > 150 degrees for various oils), coupled with effective oil/water separation performance (separation efficiency of 99.5 %, flux of 3.37 Lm(-2)s(-1), and ultimate operating oil pressure of 2.36 kPa), and iii) exceptional resistance to light, heat and oxidation, and excellent flame retardancy. In summary, the synergy between aminated lignin and alginate materials has resulted in complementary functions for high-value applications of polysaccharide-based alginate materials.
Keyword ：
Alginate-based foams Alginate-based foams Aminated lignin Aminated lignin Oil/water separation Oil/water separation Service performance Service performance Superior water affinity Superior water affinity Underwater superoleophobicity Underwater superoleophobicity
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| GB/T 7714 | Han, Chunhui , Tian, Qinfen , Ma, Ziqiang et al. Construction of an alginate-based aminated lignin composite foam with ultra-high service performance [J]. | CARBOHYDRATE POLYMERS , 2025 , 347 . |
| MLA | Han, Chunhui et al. "Construction of an alginate-based aminated lignin composite foam with ultra-high service performance" . | CARBOHYDRATE POLYMERS 347 (2025) . |
| APA | Han, Chunhui , Tian, Qinfen , Ma, Ziqiang , Lu, Juan , Peng, Defa , Lin, Shukai et al. Construction of an alginate-based aminated lignin composite foam with ultra-high service performance . | CARBOHYDRATE POLYMERS , 2025 , 347 . |
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Cellulose nanofiber (CNF) foams, promising alternatives to dominant petroleum-based thermal insulation materials, face challenges such as high production costs, poor mechanical stability, and inherent flammability. In this work, a composite foam consisting of CNF and aramid nanofiber (ANF) is fabricated via low-cost ambient drying. Ice template by bidirectional freeze-casting constructs a lamellar structure in the CNF/ANF network. Subsequently, solvent exchange combined with Ca(II) ion cross-linking synergistically strengthens the CNF/ANF network and reduces surface tension during solvent evaporation, thereby avoiding capillary effects during ambient drying, resulting in directional CNF/ANF with low density (14.09 +/- 0.76 mg/cm3) and high porosity (99.04 %). Notably, the prepared ambient-dried CNF/ANF composite foam (Ca-CA-AD) with an aligned structure exhibit anisotropic mechanical and thermal insulation properties, with excellent mechanical robustness (a high specific compressive modulus of 16.71 MPa cm3/g) and outstanding water stability in the axial direction, and super-insulation performance (24.9 +/- 0.06 mW/mK) in the radial direction. Moreover, the ambient-dried Ca-CAAD exhibits outstanding flame retardancy with limiting oxygen index as high as 32.5 %, and a reduced heat release during combustion, compared to its freeze-dried neat CNF and CNF/ANF foams. This work provides insight into the scalable fabrication of mechanically robust and flame-retardant cellulose-based foams with tailored microstructure for thermal insulation.
Keyword ：
Ambient drying Ambient drying Cellulose Cellulose Flame-retardant Flame-retardant Ion cross-linking Ion cross-linking Solvent exchange Solvent exchange Thermal insulation Thermal insulation
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| GB/T 7714 | Liu, Zijing , Lin, Xu , Mai, Xueyan et al. Ambient drying fabrication of mechanically robust, flame-retardant, thermal-insulating cellulose/aramid nanofiber composite foam via freeze-casting combined ion cross-linking [J]. | CARBOHYDRATE POLYMERS , 2025 , 353 . |
| MLA | Liu, Zijing et al. "Ambient drying fabrication of mechanically robust, flame-retardant, thermal-insulating cellulose/aramid nanofiber composite foam via freeze-casting combined ion cross-linking" . | CARBOHYDRATE POLYMERS 353 (2025) . |
| APA | Liu, Zijing , Lin, Xu , Mai, Xueyan , Zhuang, Jiandong , Guo, Fei , Yang, Rilong et al. Ambient drying fabrication of mechanically robust, flame-retardant, thermal-insulating cellulose/aramid nanofiber composite foam via freeze-casting combined ion cross-linking . | CARBOHYDRATE POLYMERS , 2025 , 353 . |
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Abstract ：
本研究以酶解木质素（EHL）为原料，利用Mannich反应对其进行胺化改性，制备胺化酶解木质素（NEHL），进一步提高其对刚果红（CR）染料的识别和选择性吸附，并优选出最佳制备工艺。结果表明，利用Mannich反应可在EHL表面成功接枝胺基；改性后的NEHL微观结构发生明显的变化，从表面光滑变为表面粗糙，其表面具有由不规则颗粒组成的结构，比表面积增大。吸附实验结果表明，NEHL添加量为0.05 g时，对CR吸附量可达2 444.82 mg/g；对NEHL的吸附动力学和等温吸附模型进行分析，得出NEHL对CR进行单层化学吸附。NEHL的制备工艺简单，去除染料性能优越，是一种潜在的去除废水中CR染料的吸附剂。
Keyword ：
刚果红染料 刚果红染料 吸附 吸附 胺化酶解木质素 胺化酶解木质素
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| GB/T 7714 | 马自强 , 卢绢 , 林树锴 et al. 酶解木质素的胺化及对刚果红染料吸附性能研究 [J]. | 中国造纸 , 2025 , 44 (01) : 12-20 . |
| MLA | 马自强 et al. "酶解木质素的胺化及对刚果红染料吸附性能研究" . | 中国造纸 44 . 01 (2025) : 12-20 . |
| APA | 马自强 , 卢绢 , 林树锴 , 楼晨放 , 田勤奋 , 庄建东 . 酶解木质素的胺化及对刚果红染料吸附性能研究 . | 中国造纸 , 2025 , 44 (01) , 12-20 . |
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The application of Fe (N) single-atom catalysts (SACs) in the hydrogen evolution reaction (HER) is hindered by insufficient active sites, poor conductivity, and instability of Fe-N4 centers under HER conditions. Herein, we propose a sulfur-driven reconfiguration strategy to tailor the coordination environment of a single Fe atom. Using thiourea as a dual N/S source, N/S co-doped lignin-derived carbon dots (NSLCDs) were synthesized via hydrothermal carbonization, serving as supports for single Fe atoms anchored by photoreduction to form Fe-N2.3S1.75+x coordination structures. Density functional theory (DFT) revealed that this configuration optimizes the electronic structure of the sulfur sites, achieving a favorable Gibbs free energy for H* adsorption (ΔGH* = -0.18 eV). The optimized Fe-NSLCDs exhibited an HER overpotential of -0.28 V. When coupled with CdS nanorods, the composite achieved a photocatalytic hydrogen evolution rate of 19.45 mmol∙g-1∙h-1 and maintains stable activity (>17.56 mmol∙g-1∙h-1 over 50 h). This study establishes a universal framework for engineering metal coordination environments in SACs, bridging atomic-scale design with macroscopic catalytic efficiency for renewable energy applications. © 2025, The Authors. All rights reserved.
Keyword ：
Atoms Atoms Carbon Carbon Carbonization Carbonization Catalyst activity Catalyst activity Cobalt compounds Cobalt compounds Density functional theory Density functional theory Design for testability Design for testability Doping (additives) Doping (additives) Electronic structure Electronic structure Free energy Free energy Gibbs free energy Gibbs free energy Hydrogen Hydrogen Hydrogen evolution reaction Hydrogen evolution reaction Iron Iron Iron compounds Iron compounds Lignin Lignin Sulfur Sulfur Sulfur compounds Sulfur compounds
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| GB/T 7714 | Lou, Chenfang , Tian, Qinfen , Liang, Jiaqi et al. Reconfiguration of the Fe-N4 Active Site by S Element and its Effect on Hydrogen Evolution Performance of Fe-Carbon Dots Sacs [J]. | SSRN , 2025 . |
| MLA | Lou, Chenfang et al. "Reconfiguration of the Fe-N4 Active Site by S Element and its Effect on Hydrogen Evolution Performance of Fe-Carbon Dots Sacs" . | SSRN (2025) . |
| APA | Lou, Chenfang , Tian, Qinfen , Liang, Jiaqi , Lin, Tingfeng , Lin, Jiande , Zheng, Xinru et al. Reconfiguration of the Fe-N4 Active Site by S Element and its Effect on Hydrogen Evolution Performance of Fe-Carbon Dots Sacs . | SSRN , 2025 . |
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Biomass-based materials face challenges in treating industrial oily wastewater, particularly stable oil-in-water emulsions, due to limitations like poor mechanical strength and fouling susceptibility. To address this, a robust g-C3N4/aminated lignin/sodium alginate (GNALS) aerogel was engineered via chemical/ionic dual crosslinking and freeze-drying. This design integrates exfoliated g-C3N4 nanosheets (providing roughness and photocatalysis) and amine-functionalized lignin (natural crust agent and antioxidant) into an alginate matrix, forming a multi-network structure with enhanced mechanical robustness (4250 times self-weight load capacity, 0.78 MPa wet tensile strength), superhydrophilicity (oil contact angles >= 159.3 degrees), antioxidant activity (75.2 % DPPH scavenging), and photocatalytic functionality. The hierarchical micro/nano-roughness structure and superwettability surface enable efficient demulsification via droplet coalescence, and achieving 99.5 % separation efficiency for soybean oil-in-water emulsions with gravity-driven (485.48 L center dot m(-2)center dot h(-1)) and negative pressure-driven (1433.12 L center dot m(-2)center dot h(-1)) fluxes. The g-C3N4-driven photocatalytic self-cleaning degrades adsorbed pollutants, enables >98.5 % efficiency recovery after 10 cycles under xenon lamp irradiation. This work establishes a multi-component synergy strategy for biomass aerogels, advancing hierarchical engineering principles for sustainable wastewater remediation.
Keyword ：
Aminated lignin Aminated lignin Demulsification and separation Demulsification and separation Exfoliated g-C3N4 nanosheets Exfoliated g-C3N4 nanosheets Multiple-crosslinked framework Multiple-crosslinked framework Robust alginate-based aerogels Robust alginate-based aerogels Superwettability Superwettability
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| GB/T 7714 | Tian, Qinfen , Lu, Juan , He, Yuhui et al. Hierarchically crosslinked g-C3N4/aminated lignin/alginate aerogels for sustainable oil-in-water emulsion separation [J]. | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES , 2025 , 323 . |
| MLA | Tian, Qinfen et al. "Hierarchically crosslinked g-C3N4/aminated lignin/alginate aerogels for sustainable oil-in-water emulsion separation" . | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES 323 (2025) . |
| APA | Tian, Qinfen , Lu, Juan , He, Yuhui , Peng, Defa , Ma, Ziqiang , Wu, Yibin et al. Hierarchically crosslinked g-C3N4/aminated lignin/alginate aerogels for sustainable oil-in-water emulsion separation . | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES , 2025 , 323 . |
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本发明涉及一种用于碱性氢气析出反应的掺杂型钕基复合电催化剂及其制备方法与应用。该催化剂以钕氧化物（Nd2O3）为基体材料，通过掺杂磷（P）和钌（Ru），优化了催化剂的电子结构，显著提高了其催化活性和稳定性。催化剂采用简单的水热法和低温磷化处理制备，具有均匀的连续平整的纳米层结构，有利于电子传输和反应活性位点的暴露。在1.0 M KOH电解液中，该催化剂表现出极低的过电位（11.8 mV）和优异的稳定性，显著优于商业Pt/C催化剂和未掺杂的钕氧化物催化剂。本发明的复合电催化剂不仅实现了高效、稳定的碱性氢气析出反应，还为设计高性能非贵金属催化剂提供了新的思路。
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| GB/T 7714 | 庄建东 , 郑欣茹 , 甘海峰 et al. 一种用于碱性氢气析出反应的掺杂型钕基复合电催化剂及其制备与应用 : CN202510341686.9[P]. | 2025-03-21 . |
| MLA | 庄建东 et al. "一种用于碱性氢气析出反应的掺杂型钕基复合电催化剂及其制备与应用" : CN202510341686.9. | 2025-03-21 . |
| APA | 庄建东 , 郑欣茹 , 甘海峰 , 楼晨放 , 马自强 , 梁佳琪 et al. 一种用于碱性氢气析出反应的掺杂型钕基复合电催化剂及其制备与应用 : CN202510341686.9. | 2025-03-21 . |
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Molybdenum-based catalysts show promise for hydrogen evolution reaction (HER) but suffer from strong Mo-H bonds that impede H* desorption, limiting their catalytic activity. Herein, a novel phosphorus (P)-doped oxygen-deficient MoO2-x@C (MOCP) composite was designed and synthesized. This strategy synergistically modulates the electronic structure and surface properties of MoO2 through P-doping and oxygen vacancy engineering. DFT calculations reveal that P-doping and oxygen vacancies synergistically optimize the electronic environment of Mo sites, significantly lowering the ΔGH* and downshifting the d-band center to promote H* desorption kinetics. When employed as a H2 evolution cocatalyst for CdS, the as-synthesized MOCP/CdS composite photocatalyst exhibits exceptional photocatalytic performance, achieving a visible-light driven hydrogen evolution rate of 50.42 mmol·g-1·h-1 (72.22 mmol·g-1·h-1 under simulated sunlight), 31.8 times higher than pristine CdS and 2.4 times higher than Pt/CdS. Benefiting from a pronounced LSPR effect, the composite photocatalyst also displays a H2 evolution rate of 4.96 mmol·g-1·h-1 in the near-infrared regions (650-1100 nm), enabling a quasi-full-spectrum response and excellent stability (6.98% decay after 4 cycles). This work validates that integrating heteroatom doping, defect engineering, and plasmonic effects is a powerful strategy to unlock the full potential of semiconductor photocatalysts for solar-to-fuel conversion. © 2025, The Authors. All rights reserved.
Keyword ：
Catalyst activity Catalyst activity Complexation Complexation Desorption Desorption Electronic structure Electronic structure Hydrogen Hydrogen Hydrogen evolution reaction Hydrogen evolution reaction Molybdenum Molybdenum Molybdenum oxide Molybdenum oxide Oxygen Oxygen Oxygen vacancies Oxygen vacancies Photocatalysts Photocatalysts Photocatalytic activity Photocatalytic activity Semiconductor doping Semiconductor doping Sulfur compounds Sulfur compounds
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| GB/T 7714 | Liang, Jiaqi , Tian, Qinfen , Chen, Xingyu et al. Synergistic Engineering of P-Doping and Oxygen Vacancies Combined with LSPR Effect to Enhance Hydrogen Evolution Performance of P-MoO2-x@C [J]. | SSRN , 2025 . |
| MLA | Liang, Jiaqi et al. "Synergistic Engineering of P-Doping and Oxygen Vacancies Combined with LSPR Effect to Enhance Hydrogen Evolution Performance of P-MoO2-x@C" . | SSRN (2025) . |
| APA | Liang, Jiaqi , Tian, Qinfen , Chen, Xingyu , Li, Xin , Dong, Guofa , Xie, Yali et al. Synergistic Engineering of P-Doping and Oxygen Vacancies Combined with LSPR Effect to Enhance Hydrogen Evolution Performance of P-MoO2-x@C . | SSRN , 2025 . |
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本发明公开了一种木质素/明胶/藻酸盐复合水凝胶材料及其制备方法，其属于生物质材料和环境材料领域。该制备方法先分别制得明胶的A溶液、改性木质素的B溶液以及可溶性藻酸盐与碳二亚胺的C溶液，再将三者与缓释型离子交联剂混合，倒入模具反应2‑48小时得到水凝胶。该水凝胶通过改性木质素‑明胶‑藻酸盐三种成分间的共价键交联，构建稳定三维网络结构。同时采用全生物质改性，使用天然高分子材料及可再生资源；所制得的水凝胶具有良好的交联可控性，在70％压缩应变下基本可恢复，30％压缩应变下经1000次压缩回弹测试表现优异，具备优异的抗疲劳性、机械稳定性，还具有低毒性、低成本、制备工艺简便的优势，在医疗、电子等领域有广泛应用潜力。
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| GB/T 7714 | 庄建东 , 卢绢 , 吴毅彬 et al. 一种木质素/明胶/藻酸盐复合水凝胶材料及其制备方法 : CN202510408625.X[P]. | 2025-04-02 . |
| MLA | 庄建东 et al. "一种木质素/明胶/藻酸盐复合水凝胶材料及其制备方法" : CN202510408625.X. | 2025-04-02 . |
| APA | 庄建东 , 卢绢 , 吴毅彬 , 马自强 . 一种木质素/明胶/藻酸盐复合水凝胶材料及其制备方法 : CN202510408625.X. | 2025-04-02 . |
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The application of Fe (N) single-atom catalysts (SACs) in the hydrogen evolution reaction (HER) is hindered by insufficient active sites, poor conductivity, and instability of FeN4 centers under HER conditions. Herein, we propose a sulfur-driven reconfiguration strategy to tailor the coordination environment of a single Fe atom. Using thiourea as a dual N/S source, N/S co-doped lignin-derived carbon dots (NSLCDs) were synthesized via hydrothermal carbonization, serving as supports for single Fe atoms anchored by photoreduction to form FeN2.3S1.75+x coordination structures. Density functional theory (DFT) revealed that this configuration optimizes the electronic structure of the sulfur sites, achieving a favorable Gibbs free energy for H* adsorption (Delta G(H*) = -0.18 eV). The optimized Fe-NSLCDs exhibited an HER overpotential of -0.28 V. When coupled with CdS nanorods, the composite achieved a photocatalytic hydrogen evolution rate of 19.45 mmol center dot g(-1)center dot h(-1) and maintains stable activity (>17.56 mmol center dot g(-1)center dot h(-1) over 50 h). This study establishes a universal framework for engineering metal coordination environments in SACs, bridging atomic-scale design with macroscopic catalytic efficiency for renewable energy applications.
Keyword ：
H 2 evolution H 2 evolution Iron single-atom catalysts Iron single-atom catalysts Lignin based carbon dots Lignin based carbon dots N/S co-doped N/S co-doped Reconfiguration of Fe-N 4 Reconfiguration of Fe-N 4
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| GB/T 7714 | Lou, Chenfang , Tian, Qinfen , Liang, Jiaqi et al. Reconfiguration of the Fe-N4 active site by S element and its effect on hydrogen evolution performance of Fe-carbon dots SACs [J]. | CHEMICAL ENGINEERING JOURNAL , 2025 , 523 . |
| MLA | Lou, Chenfang et al. "Reconfiguration of the Fe-N4 active site by S element and its effect on hydrogen evolution performance of Fe-carbon dots SACs" . | CHEMICAL ENGINEERING JOURNAL 523 (2025) . |
| APA | Lou, Chenfang , Tian, Qinfen , Liang, Jiaqi , Lin, Tingfeng , Lin, Jiande , Zheng, Xinru et al. Reconfiguration of the Fe-N4 active site by S element and its effect on hydrogen evolution performance of Fe-carbon dots SACs . | CHEMICAL ENGINEERING JOURNAL , 2025 , 523 . |
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Molybdenum (Mo)-based catalysts show promise for hydrogen evolution reaction (HER) but suffer from strong Mo-H bonds that impede excited hydrogen atoms (H*) desorption, limiting their catalytic activity. Herein, a novel phosphorus (P)-doped oxygen-deficient MoO2-x@C (MOCP) composite is designed and synthesized. This strategy synergistically modulates the electronic structure and surface properties of MoO2 through P-doping and oxygen vacancy engineering. DFT calculations revealed that P-doping and oxygen vacancies synergistically optimized the electronic environment of Mo sites, significantly lowering the Gibbs free energy of H* (Delta GH*) and downshifting the d-band center to promote H* desorption kinetics. When employed as a H2 evolution cocatalyst for Cadmium Sulfide (CdS), the as-synthesized MOCP/CdS composite photocatalyst exhibits exceptional photocatalytic performance, achieving a visible-light-driven hydrogen evolution rate of 50.42 mmol & sdot;g-1 & sdot;h-1 (72.22 mmol & sdot;g-1 & sdot;h-1 under simulated sunlight), 31.8 times higher than pristine CdS and 2.4 times higher than Pt/CdS. Benefiting from a pronounced localized surface plasmon resonance (LSPR) effect, the composite photocatalyst also displays a H2 evolution rate of 4.96 mmol & sdot;g-1 & sdot;h-1 in the near-infrared regions (650-1100 nm), enabling a quasi-full-spectrum response and excellent stability (6.98 % decay after 4 cycles). This work validates that integrating heteroatom doping, defect engineering, and plasmonic effects is a powerful strategy to unlock the full potential of semiconductor photocatalysts for solar-to-fuel conversion.
Keyword ：
CdS CdS LSPR effect LSPR effect Oxygen-deficient MoO2-x@C Oxygen-deficient MoO2-x@C P-doped P-doped Photocatalytic hydrogen evolution Photocatalytic hydrogen evolution Quasi-full-spectrum response Quasi-full-spectrum response
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| GB/T 7714 | Liang, Jiaqi , Tian, Qinfen , Chen, Xingyu et al. Synergistic engineering of P-doping and oxygen vacancies combined with LSPR effect to enhance hydrogen evolution performance of P-MoO2-x@C [J]. | CHEMICAL ENGINEERING JOURNAL , 2025 , 526 . |
| MLA | Liang, Jiaqi et al. "Synergistic engineering of P-doping and oxygen vacancies combined with LSPR effect to enhance hydrogen evolution performance of P-MoO2-x@C" . | CHEMICAL ENGINEERING JOURNAL 526 (2025) . |
| APA | Liang, Jiaqi , Tian, Qinfen , Chen, Xingyu , Li, Xin , Dong, Guofa , Xie, Yali et al. Synergistic engineering of P-doping and oxygen vacancies combined with LSPR effect to enhance hydrogen evolution performance of P-MoO2-x@C . | CHEMICAL ENGINEERING JOURNAL , 2025 , 526 . |
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