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学者姓名：黄六莲
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Abstract ：
The in-situ generation of hydrogen peroxide (H2O2) from oxygen and water with semiconductor photocatalysts under illumination is considered as a promising synthesis pathway. However, photocarrier recombination as well as slow transfer of charges involved in carbon nitride (C3N5, CN), are the enduring challenge for photocatalytic activity. Herein, we develop a pi-stacked CN-based composites (CNv-A) coupling natural polyphenolic anthocyanins (A) with defective carbon nitride (CNv) for efficient visible-light-driven H2O2 production. The strengthening pi-stacking (CNv-A) leads to extended electronic transmission networks via effective intermolecular pi-pi interactions, resulting in a high H2O2 generation rate of 147.2 mu mol.L-1.h-1, as well as 42 times that of the pristine CN. The combination of experimental results and theoretical calculations reveals that with the incorporation of anthocyanins, the intermolecular pi-pi stacking reconstructs the enlarged charge transfer networks over carbon nitride, thus facilitating electron transfer and active center dot O2- generation. Moreover, increasing the content of nitrogen vacancy of carbon nitride effectively strengthened the pi-pi interactions, accelerating the transfer and separation of charge carriers, thereby achieving drastic high-performance H2O2 production via an indirect single-electron oxygen reduction reaction (ORR) pathway. This work provides a new perspective for regulating charge transfer and separation by modulating the strength of intermolecular weak interactions.
Keyword ：
Anthocyanins Anthocyanins Carbon nitride Carbon nitride Charge transfer Charge transfer pi-pi stacking pi-pi stacking Vacancy engineering Vacancy engineering
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| GB/T 7714 | Wu, Shengye , Li, Yixi , Wei, Shuaichong et al. Coupling of anthocyanins at defective carbon nitride (C3N5) with π-π stacking for efficient photocatalytic H2O2 generation [J]. | CHEMICAL ENGINEERING JOURNAL , 2025 , 508 . |
| MLA | Wu, Shengye et al. "Coupling of anthocyanins at defective carbon nitride (C3N5) with π-π stacking for efficient photocatalytic H2O2 generation" . | CHEMICAL ENGINEERING JOURNAL 508 (2025) . |
| APA | Wu, Shengye , Li, Yixi , Wei, Shuaichong , Li, Jiashu , Zhang, Fengshan , Li, Jingde et al. Coupling of anthocyanins at defective carbon nitride (C3N5) with π-π stacking for efficient photocatalytic H2O2 generation . | CHEMICAL ENGINEERING JOURNAL , 2025 , 508 . |
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Hydrogen peroxide (H2O2) photosynthesis from oxygen and water has become an attracting route due to its green, low-carbon and sustainable features. Although carbon nitride (CN) is a remarkable semiconductor for photocatalytic H2O2 production, CN also suffers from slow transfer and poor separation efficiency of photogenerated charges due to the intrinsically molecular structures. Herein, we report a facile method to enhance H2O2 evolution with asymmetric CN via molten-salt assisted supramolecular assemblies of melamine and 2,4,6triaminopyrimidine (T). The optimum M-CNT exhibited a photocatalytic H2O2 production rate of 44.63 mu mol center dot L- 1h- 1, which is more than 4 times higher than that of pristine CN without any sacrificial agents. Experimental and DFT results demonstrate T molecule can tune the charge location of CN frameworks, promoting electron transfer and efficient separation. Furthermore, under the synergy of molten salt, the uneven distribution of intramolecular charges can be exacerbated to boost the photocatalytic performance through significant polarization effects. This work provided a paradigm of charge characteristics of carbon nitride via asymmetric molecular engineering for enhanced photocatalytic H2O2 generation.
Keyword ：
Asymmetric structure Asymmetric structure Carbon nitride Carbon nitride Hydrogen peroxide Hydrogen peroxide Photosynthesis Photosynthesis Polarization effect Polarization effect
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| GB/T 7714 | Li, Jiashu , Li, Yixi , Wei, Shuaichong et al. Asymmetric framework engineering of carbon nitride nanotubes for polarization promoted H2O2 photosynthesis [J]. | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY , 2025 , 366 . |
| MLA | Li, Jiashu et al. "Asymmetric framework engineering of carbon nitride nanotubes for polarization promoted H2O2 photosynthesis" . | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY 366 (2025) . |
| APA | Li, Jiashu , Li, Yixi , Wei, Shuaichong , Wu, Shengye , Peng, Zhangyan , Zhang, Fengshan et al. Asymmetric framework engineering of carbon nitride nanotubes for polarization promoted H2O2 photosynthesis . | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY , 2025 , 366 . |
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本发明公开了一种路易斯酸修饰改性的水热炭光催化剂制备过氧化氢中的应用，所述水热炭光催化剂是以葡萄糖、微晶纤维素、溶解浆、废纸等为碳源，加入路易斯酸的水溶液进行水热碳化反应而制得。本发明制备的水热炭光催化剂具有较好的光照吸收性、快速的光生电子转移、较优的光催化反应活性，同时是一种环保型的光催化材料，可用于在可见光下光催化制备过氧化氢。
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| GB/T 7714 | 肖禾 , 周哲宇 , 卯光健 et al. 一种路易斯酸修饰改性的水热炭光催化剂在制备过氧化氢中的应用 : CN202510583550.9[P]. | 2025-05-07 . |
| MLA | 肖禾 et al. "一种路易斯酸修饰改性的水热炭光催化剂在制备过氧化氢中的应用" : CN202510583550.9. | 2025-05-07 . |
| APA | 肖禾 , 周哲宇 , 卯光健 , 彭张燕 , 冷东强 , 吴慧 et al. 一种路易斯酸修饰改性的水热炭光催化剂在制备过氧化氢中的应用 : CN202510583550.9. | 2025-05-07 . |
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本发明提供一种双网络结构增强的纤维素材料的制备方法及其产品，其步骤如下：将木质素添加到离子液体中，加热溶解制备木质素溶液；将纤维素纤维添加到木质素溶液中，加热溶解制备木质素/纤维素溶液；在木质素/纤维素溶液中添加戊二醛，加热搅拌获得交联木质素/纤维素混合溶液；最后凝胶化成型，制备双网络结构的高强度纤维素离子凝胶。本发明采用的离子液体可以溶解木质素和纤维素纤维，使其暴露多羟基作为化学交联位点，同时离子液体可以作为催化剂促进戊二醛的醛基和木质素、纤维素分子的羟基发生缩醛反应，形成稳定的化学键，构建纤维素分子网络和木质素分子网络，制备双网络结构的纤维素材料，呈现优异的强度性能。
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| GB/T 7714 | 李建国 , 江佳骏 , 杨嘉玮 et al. 一种双网络结构的纤维素材料的制备方法及其产品 : CN202510452846.7[P]. | 2025-04-11 . |
| MLA | 李建国 et al. "一种双网络结构的纤维素材料的制备方法及其产品" : CN202510452846.7. | 2025-04-11 . |
| APA | 李建国 , 江佳骏 , 杨嘉玮 , 李碧玉 , 曾凤琴 , 陈礼辉 et al. 一种双网络结构的纤维素材料的制备方法及其产品 : CN202510452846.7. | 2025-04-11 . |
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本发明公开了一种温度自调节材料及其应用，属于先进材料、热管理和光管理术领域，该温度自调节材料包括辐射制冷无机涂层和热敏涂层；所述辐射制冷无机涂层包括无机高反射率纳米颗粒和无机硅酸盐胶粘剂；所述热敏涂层包括2‑苯基氨基‑3‑甲基二乙基氨基氟烷、丙烯酸树脂和过氧化苯甲酰。本发明通过在建筑基材的表面引入辐射制冷涂层以及具有自调节能力的热敏涂层来优化建筑材料的光热管理能力，赋予其在不同温度下的不同光学能力表现，从而实现可调节辐射制冷/太阳加热功能。
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| GB/T 7714 | 李建国 , 毕英豪 , 吉超群 et al. 一种温度自调节材料及其应用 : CN202510689474.X[P]. | 2025-05-27 . |
| MLA | 李建国 et al. "一种温度自调节材料及其应用" : CN202510689474.X. | 2025-05-27 . |
| APA | 李建国 , 毕英豪 , 吉超群 , 曾凯胜 , 李鑫鑫 , 陈礼辉 et al. 一种温度自调节材料及其应用 : CN202510689474.X. | 2025-05-27 . |
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本发明提供一种化学交联高强度纤维素材料的制备方法及其产品，制备方法如下：将纤维素纤维、离子液体和醛基交联剂混合，离子液体可以溶解纤维使纤维素分子暴露更多羟基；同时，离子液体可以作为催化剂促进醛基分子的醛基和纤维素分子羟基发生缩醛反应，形成纤维素分子间的强化学作用键，极大提高纤维素分子之间的相互作用程度，最终制备出高强度的纤维素材料。本发明制备工艺简单，原料来源广泛，制备化学交联纤维素材料的强度高，应用前景广阔。
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| GB/T 7714 | 李建国 , 杨嘉玮 , 李青远 et al. 一种化学交联高强度纤维素材料的制备方法及其产品 : CN202510452843.3[P]. | 2025-04-11 . |
| MLA | 李建国 et al. "一种化学交联高强度纤维素材料的制备方法及其产品" : CN202510452843.3. | 2025-04-11 . |
| APA | 李建国 , 杨嘉玮 , 李青远 , 刘亿苦 , 郑哲涵 , 吴鸿德 et al. 一种化学交联高强度纤维素材料的制备方法及其产品 : CN202510452843.3. | 2025-04-11 . |
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Upgrading the weak internal electric field (IEF) and slow charge carrier dynamics of carbon nitride (CN) has become a critical focus in photocatalytic hydrogen peroxide (H2O2) generation. In this work, we present intramolecular junction strategy to disrupt the uniform charge distribution within CN frameworks by combining purine-based molecules (Guanine, G and Xanthine, X). The results show that direct incorporation of extrinsic five-membered (G and X) into the uniform triazine frameworks not only regulate the structural symmetry and dipole moment, but also induce a self-polarization effect, thereby enhancing the internal electric field. Furthermore, the differing hybridization modes of the five-membered rings alter the HOMO and LUMO compositions, leading to the spatially effective separation of reduction and oxidation centers. Notably, this structural modification overcomes kinetic barriers, enabling dual-channel H2O2 production. At the same time, this unique structure reduces the conversion barriers of superoxide and hydroxyl radicals, promoting the formation of intermediate reactive species. Consequently, Kelvin probe force microscopy (KPFM) and in-situ XPS further confirmed the successful construction of a robust internal electric field in CN-X, while EPR spectroscopy validated the dual-channel reaction pathways with 9.31-fold increase of H2O2 photosynthesis compared to pristine CN. This work provides pioneering insights into molecular-tailored protocol and dipole field effect, paving the way for advanced solar-to-chemical energy conversion.
Keyword ：
Carbon nitride Carbon nitride Intra-molecular junction Intra-molecular junction Photosynthesis of H 2 O 2 Photosynthesis of H 2 O 2 Polarization effect Polarization effect Redox active sites Redox active sites
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| GB/T 7714 | Li, Jiashu , Zhang, Huijie , Li, Yixi et al. Asymmetrical intra-molecular junction enables redox active sites on bio-decorated carbon nitride toward H2O2 photosynthesis [J]. | CHEMICAL ENGINEERING JOURNAL , 2025 , 519 . |
| MLA | Li, Jiashu et al. "Asymmetrical intra-molecular junction enables redox active sites on bio-decorated carbon nitride toward H2O2 photosynthesis" . | CHEMICAL ENGINEERING JOURNAL 519 (2025) . |
| APA | Li, Jiashu , Zhang, Huijie , Li, Yixi , Wu, Shengye , Wei, Shuaichong , Zhang, Fengshan et al. Asymmetrical intra-molecular junction enables redox active sites on bio-decorated carbon nitride toward H2O2 photosynthesis . | CHEMICAL ENGINEERING JOURNAL , 2025 , 519 . |
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本发明提供一种皮革废弃物制造高品质再生皮革的制备方法，包括如下步骤：(1)取皮革废弃物分散在水溶液中，制备皮革纤维溶液，所述皮革纤维溶液浓度为0.05％～0.5％；(2)在皮革纤维溶液中添加化学试剂PAM或者CPAM，搅拌均匀；所述化学试剂用量为0.1～5％wt；(3)对上述皮革纤维溶液进行脱水成型制备湿态再生皮革；(4)对湿态再生皮革进行热压干燥处理制备高强度再生皮革。本发明制备工艺简单、流程少，可制备得到强度高，匀度好的高性能再生皮革，充分利用大量皮革废弃物，有效减少资源的浪费，应用前景广阔。
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| GB/T 7714 | 陈礼辉 , 朱智双 , 李建国 et al. 一种皮革废弃物制造高品质再生皮革的制备方法 : CN202411515390.6[P]. | 2024-10-29 . |
| MLA | 陈礼辉 et al. "一种皮革废弃物制造高品质再生皮革的制备方法" : CN202411515390.6. | 2024-10-29 . |
| APA | 陈礼辉 , 朱智双 , 李建国 , 黄六莲 . 一种皮革废弃物制造高品质再生皮革的制备方法 : CN202411515390.6. | 2024-10-29 . |
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本发明公开一种胶原基多层生物材料及其制备方法，该制备方法包括：1)将胶原溶液、胶原皮克林乳液、水溶性高分子溶液分为n份料液；n份料液中至少包括1份胶原溶液或胶原皮克林乳液；2)设置定向冷冻装置，定向冷冻装置中的冷冻料液模具通过n‑1个挡板分隔成n个独立通道，将n份料液分别倒入各通道中；3)向装置底部加入液氮进行预冷后，将各挡板由模具底部缓缓向上提升，其中挡板的提升速率应大于冰峰的最大前进速率；4)当挡板被全部抽离出模具后，进行冷冻干燥，得到胶原基多层生物材料。该方法克服了胶原基多层生物材料制备难度大、层界面稳定性差等问题，为免粘合、层间界面牢固的多层生物材料的制造提供了一种新颖的通用技术。
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| GB/T 7714 | 张敏 , 梁凯文 , 丁翠翠 et al. 一种胶原基多层生物材料及其制备方法 : CN202411649703.7[P]. | 2024-11-19 . |
| MLA | 张敏 et al. "一种胶原基多层生物材料及其制备方法" : CN202411649703.7. | 2024-11-19 . |
| APA | 张敏 , 梁凯文 , 丁翠翠 , 陈礼辉 , 黄六莲 . 一种胶原基多层生物材料及其制备方法 : CN202411649703.7. | 2024-11-19 . |
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Flexible hybrid nanogenerators (HNGs) have received significant attention for their potential in harvesting mechanical energy to power portable and miniaturized portable devices. This work presents a method to fabricate flexible, durable and biodegradable electrospun polydopamine@barium titanate/cellulose acetate (PDA@BTO/CA) nanofiber films. This design integrates polydopamine (PDA) and piezoelectric barium titanate (BTO) nanoparticles within a flexible cellulose acetate (CA) matrix to enable self-powered wearable biomonitoring. The inclusion of PDA enhances the physical adhesion between BTO and CA, resulting in a significant 40% increase in voltage output. Notably, the PDA-modified composite PDA@BTO/CA demonstrates remarkable durability over 15,000 cycles and effectively detects a range of human motions (such as fist clenching, wrist bending, elbow movement, walking, running and jumping), transducing them into stable, precise electrical signals. Intriguingly, the hybrid nanogenerator device exhibits robust performance in extreme conditions, including underwater and high or low temperatures, while maintaining its good biodegradability. This work paves the way for advanced self-powered wearable biosensor devices capable of precise and reliable human motion monitoring.
Keyword ：
Cellulose Cellulose Composite Composite Hybrid nanogenerator Hybrid nanogenerator Polydopamine Polydopamine Wearable sensors Wearable sensors
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| GB/T 7714 | Lu, Shengchang , Li, Shuai , Li, Qin et al. Flexible cellulose-based hybrid nanogenerators for self-powered wearable bio-monitoring applications [J]. | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2025 , 685 : 1087-1098 . |
| MLA | Lu, Shengchang et al. "Flexible cellulose-based hybrid nanogenerators for self-powered wearable bio-monitoring applications" . | JOURNAL OF COLLOID AND INTERFACE SCIENCE 685 (2025) : 1087-1098 . |
| APA | Lu, Shengchang , Li, Shuai , Li, Qin , Yang, Lin , Zhang, Hui , Li, Jianguo et al. Flexible cellulose-based hybrid nanogenerators for self-powered wearable bio-monitoring applications . | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2025 , 685 , 1087-1098 . |
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