Applied Surface Science最新文献

Engineered multi-stage chemical modification of carbon nanotubes: From oxidation and reduction to silane coupling for optimal dispersion 碳纳米管的工程多阶段化学改性：从氧化和还原到硅烷偶联以获得最佳分散

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2025-05-29 DOI: 10.1016/j.apsusc.2025.163658

Huanhuan Wang, Qi Qu, Qingbin Tian, Jin Wang, Jiming Gao, Yufeng Liu, Yan He, Jun Yang

{"title":"Engineered multi-stage chemical modification of carbon nanotubes: From oxidation and reduction to silane coupling for optimal dispersion","authors":"Huanhuan Wang, Qi Qu, Qingbin Tian, Jin Wang, Jiming Gao, Yufeng Liu, Yan He, Jun Yang","doi":"10.1016/j.apsusc.2025.163658","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163658","url":null,"abstract":"The dispersion of carbon nanotubes (CNTs) remains a critical challenge for their application in nanocomposites and advanced functional materials. This study proposes a systematic surface modification strategy involving sequential acid oxidation, reduction, and silane coupling agent (SCA) grafting to enhance CNT dispersibility. The effects of oxidation time, reduction time, and SCA concentration on CNT surface chemistry, structure, and dispersion were comprehensively evaluated using XPS, FTIR, Raman, and TGA. Results indicated that an optimal oxidation time of 8 h maximized the introduction of oxygen-containing functional groups while maintaining CNT structural stability, whereas a 5 h reduction time effectively converted carbonyl and carboxyl groups (−C<img alt=\"double bond\" src=\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/dbnd.gif\" style=\"vertical-align:middle\"/>O, –COOH) into hydroxyl (–CH2OH), enhancing reactivity for subsequent functionalization. A grafting concentration of 5 wt% SCA achieved effective surface coverage and dispersion. The resulting functionalized CNTs exhibited superior dispersion stability in polar solvents, confirmed by SEM, sedimentation, contact angle, and zeta potential analyses. Improved surface polarity, electrostatic repulsion, and steric hindrance were identified as key contributors. This work provides a comprehensive approach to CNT surface modification, offering valuable insights into tailoring CNT dispersibility for improved interfacial compatibility in polymer nanocomposites, coatings, and functional materials.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"86 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144165051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ITO metasurface assisted quasi near-field focusing for enhanced photoresponse in ZnO photodetectors ITO超表面辅助准近场聚焦增强ZnO光电探测器的光响应

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2025-05-28 DOI: 10.1016/j.apsusc.2025.163583

Ajinkya Palwe, Chandan Kumar, Shobha Shukla, Sumit Saxena

{"title":"ITO metasurface assisted quasi near-field focusing for enhanced photoresponse in ZnO photodetectors","authors":"Ajinkya Palwe, Chandan Kumar, Shobha Shukla, Sumit Saxena","doi":"10.1016/j.apsusc.2025.163583","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163583","url":null,"abstract":"Metasurfaces enable engineering of amplitude, phase, and polarization of incident electromagnetic waves, thereby providing robust control over their intrinsic properties. This has resulted in development of ultra-compact optical devices. Indium tin oxide (ITO) is used as an electrode in various optoelectronic devices. Integration of ITO metasurfaces with optoelectronic devices can eliminate the need for additional layers, as they can simultaneously serve as transparent electrode along with light-trapping element. Here, we report design and fabrication of ITO metasurface to concentrate UV– visible light (∼350 nm to 550 nm) in the quasi near field. ITO metasurfaces in form of square patches measuring 1.3 µm on each side, with thickness of 120 nm, and a periodicity of 2 µm were fabricated using femtosecond laser-based direct writing. The periodic arrangement of ITO patches facilitate the formation of electric field hotspots in the quasi near field due to the constructive interference of the diffracted light and guided mode resonance. We incorporated these metasurfaces onto ZnO quantum dots-based UV photodetectors, which exhibited about 183 % enhancement in the photoresponsivity due to the enhanced light-matter interactions. The proposed work highlights the potential of ITO metasurfaces as a promising technology in the development of high-performance, ultrasensitive photodevices.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"85 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144165052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Distinct rubrene/CsPbI2Br interfacial energetics on spin-coated and vacuum evaporated perovskite films 自旋镀膜和真空蒸发钙钛矿膜上rubrene/CsPbI2Br界面能量学的差异

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2025-05-28 DOI: 10.1016/j.apsusc.2025.163663

Junhan Zhang, Chenyue Wang, Chenyang Shen, Muyang Chen, Bingchen He, Zhenhuang Su, Liang Cao, Xingyu Gao

{"title":"Distinct rubrene/CsPbI2Br interfacial energetics on spin-coated and vacuum evaporated perovskite films","authors":"Junhan Zhang, Chenyue Wang, Chenyang Shen, Muyang Chen, Bingchen He, Zhenhuang Su, Liang Cao, Xingyu Gao","doi":"10.1016/j.apsusc.2025.163663","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163663","url":null,"abstract":"Understanding the interfacial energetics between metal halide perovskites and organic charge transport layers is critical for optimizing charge transport and achieving high-performance optoelectronic devices. While significant progress has been made in improving device efficiency, the fundamental interfacial electronic structure, particularly the influence of fabrication methods on energy level alignments, remains insufficiently explored. In this study, we compare CsPbI2Br films fabricated via spin coating and vacuum co-evaporation, using rubrene as a model hole-transporting layer. Ultraviolet photoelectron spectroscopy (UPS) and X-ray photoelectron spectroscopy (XPS) reveal that spin-coated CsPbI2Br films contain surface iodine vacancies and dangling bonds, which facilitate chemical interactions with rubrene. This results in the emergence of a new state below the valence band maximum and a relatively large hole injection barrier of ∼ 0.6 eV. In contrast, vacuum-evaporated CsPbI2Br films exhibit smoother, defect-less surfaces that interact physically with rubrene. The resulting interfacial electron transfer induces a band bending like effect, along with a reduced hole injection barrier of ∼ 0.4 eV, favoring more efficient hole collection. These findings highlight the critical role of fabrication techniques in modulating interfacial energetics and charge injection barriers through structural and electronic modifications, offering essential insights into interface engineering strategies for optimizing the performance of perovskite-based optoelectronic devices.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"33 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144165053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of CO2 adsorption/desorption behaviors of grafted solid amine materials with tunable polyethyleneimine chain lengths 可调聚乙烯亚胺链长接枝固体胺材料CO2吸附/解吸行为比较

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2025-05-28 DOI: 10.1016/j.apsusc.2025.163639

Eric Niyonsenga, Meiling Wang, Bozhi Wang, Penghao Liu, Yiwen Cao, Hao Jin, Shengbin Chen, Qiaoqiao Teng, Qi Meng, Ninghong Jia

{"title":"Comparison of CO2 adsorption/desorption behaviors of grafted solid amine materials with tunable polyethyleneimine chain lengths","authors":"Eric Niyonsenga, Meiling Wang, Bozhi Wang, Penghao Liu, Yiwen Cao, Hao Jin, Shengbin Chen, Qiaoqiao Teng, Qi Meng, Ninghong Jia","doi":"10.1016/j.apsusc.2025.163639","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163639","url":null,"abstract":"A series of polyethyleneimine (PEI)-grafted polystyrene (PS) resins, designated PS-LPEI-y (where y represents the average degree of polymerization of PEI, with values of y = 1.7, 2.8, 3.5, 4.2, 5.5), were synthesized via controlled ring-opening polymerization of 2-methyl-2-oxazoline. The materials were evaluated for CO2 adsorption, revealing that PS-LPEI-3.5 exhibited the highest uptake at 25 °C. In contrast, materials with higher amine loadings demonstrated reduced CO2 uptake due to PEI aggregation, which hindered CO2 diffusion. At elevated temperatures, this aggregation effect was mitigated, allowing materials with longer PEI chains to outperform those with lower amine densities. Kinetic modeling indicated that the more heavily aminated materials exhibited higher activation energies for both CO2 adsorption and desorption, while their adsorption heats, as measured by calorimetry, were lower. Detailed characterizations revealed that the different adsorption/desorption behaviors correlated with the morphological properties of the adsorbents. Mechanistic calculations suggested favorable carbamic acid formation, accompanied by hydrogen bonding interactions with adjacent ethyleneimine units.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"35 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144153800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Construction of self-cleaning nanofiltration membranes inspired by biomimetic catalysis utilizing cobalt phthalocyanine 基于酞菁钴仿生催化的自清洁纳滤膜的构建

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2025-05-28 DOI: 10.1016/j.apsusc.2025.163657

Shiji Jia, Shuo lv, Tianzi Fang, Lixiao Bi, Wenshuang Zhang, Chongbin Wang, Yuanyuan Feng

{"title":"Construction of self-cleaning nanofiltration membranes inspired by biomimetic catalysis utilizing cobalt phthalocyanine","authors":"Shiji Jia, Shuo lv, Tianzi Fang, Lixiao Bi, Wenshuang Zhang, Chongbin Wang, Yuanyuan Feng","doi":"10.1016/j.apsusc.2025.163657","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163657","url":null,"abstract":"Surface modification of membranes can inhibit the adsorption of contaminants on their surface. However, it is an unavoidable fact that minor contaminants will adsorb onto and accumulate within the membrane pores, ultimately leading to a deterioration in membrane performance. Researchers have attempted to incorporate nanoparticles with catalytic properties into membrane materials to enhance their self-cleaning ability. Nevertheless, the embedded nanocatalytic particles are susceptible to aggregation within the membrane, adversely affecting its separation performance. Biomimetic catalytic technologies, which emulate the structure and function of biological systems, offer a promising approach to tackle this challenge. In this work, a water-soluble biomimetic catalytic material was first synthesized through a chemical reaction between cobalt phthalocyanine and PEG(PEG@CoPc). Subsequently, more chemical reaction sites were introduced onto PEG@CoPc via host–guest interactions between PEG and α-cyclodextrin (α-CD). The PEG@CoPc(α-CD) serves as an aqueous monomer, which is cross-linked with 1,3,5-Benzenetricarbonyl chloride (TMC) to prepare polyester nanofiltration membrane. The optimized membrane showed a water flux of 32.35 L/m2·h·bar and a CR/NaCl selectivity of 270. The CoPc component can catalyze the decomposition of H2O2 to produce hydroxyl radicals (·OH). These radicals degrade the organic dyes in the NF membranes into CO2, H2O, and small amounts of acid, effectively eliminating membranes fouling.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"11 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144153801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tuning of solution-processed rGO-MoS2 bi-film transistor characteristics by selective layer nitrogen-doping 选择性氮层掺杂对溶液制rGO-MoS2双膜晶体管特性的调节

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2025-05-28 DOI: 10.1016/j.apsusc.2025.163660

Maddumage Don Sandeepa Lakshad Wimalananda, Jae-Kwan Kim, Ji-Myon Lee

{"title":"Tuning of solution-processed rGO-MoS2 bi-film transistor characteristics by selective layer nitrogen-doping","authors":"Maddumage Don Sandeepa Lakshad Wimalananda, Jae-Kwan Kim, Ji-Myon Lee","doi":"10.1016/j.apsusc.2025.163660","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163660","url":null,"abstract":"A novel technique for depositing wafer-scale bi-films of graphene oxide (GO) and MoS2 with a thickness of 7 nm or less using the filter paper-assisted (FPA) method is present here. This method allows for the easy addition of a second layer without considering the nanosheet’s dimension or filter pore size. A GO density of 0.5 μg/cm2 exhibited single-layer coverage, where approximately a 6 nm MoS2 layer was deposited on GO. The resulting thin film was transferred onto a pre-patterned device. Reduced GO (rGO) and MoS2 layers were selectively treated with low-power ammonia plasma for nitrogen(N)-doping, followed by transistor channel preparation using photolithography and dry-etching techniques. The N-doping of rGO resulted in highly n-type transistor characteristics of the MoS2/rGO device prepared by the FPA method, improving electron mobility by 22.3 %. N-doping of MoS2 caused a p-type shift in the direct point (by 5.2 V) of the bi-film device. Both the FPA thin film and the prepared devices displayed uniform characteristics across the wafer, indicating the scalability and uniformity achieved by the proposed FPA method.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"3 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144153799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Femtosecond laser ablation and fragmentation for TMDC nanoparticles synthesis: A comparative study 飞秒激光烧蚀和碎片化合成TMDC纳米颗粒的比较研究

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2025-05-28 DOI: 10.1016/j.apsusc.2025.163547

Andrei Ushkov, Dmitriy Dyubo, Nadezhda Belozerova, Dmitry Yakubovsky, Alexander Syuy, Daniil Tselikov, Georgy Ermolaev, Anton A. Popov, Alexander Chernov, Alexey D. Bolshakov, Sergey Novikov, Andrey A. Vyshnevyy, Aleksey Arsenin, Andrei V. Kabashin, Gleb I. Tselikov, Valentyn Volkov

{"title":"Femtosecond laser ablation and fragmentation for TMDC nanoparticles synthesis: A comparative study","authors":"Andrei Ushkov, Dmitriy Dyubo, Nadezhda Belozerova, Dmitry Yakubovsky, Alexander Syuy, Daniil Tselikov, Georgy Ermolaev, Anton A. Popov, Alexander Chernov, Alexey D. Bolshakov, Sergey Novikov, Andrey A. Vyshnevyy, Aleksey Arsenin, Andrei V. Kabashin, Gleb I. Tselikov, Valentyn Volkov","doi":"10.1016/j.apsusc.2025.163547","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163547","url":null,"abstract":"Femtosecond laser ablation and fragmentation in liquids proved to be effective substrate- and additive-free methods for synthesis of stable, chemically pure colloids of transition metal dichalcogenide nanoparticles, which gained much attention due to their high refractive index and excitonic transitions in visible range. Taking into account that specific nanoparticles properties (i.e., crystallinity, average size) are required in various applications such as theranostics, Mie-tronics, SERS, the understanding of synthesis methods differences is crucially important. Here, we perform a comparative study of femtosecond laser ablation and fragmentation in liquid and reveal distinct features of both methods using a WSe2 crystal for tests. Although ablation and fragmentation are often considered as quite close techniques, we show the resulting nanoparticles are (poly)crystalline or amorphous with different size distributions. Moreover, it turned out that the femtosecond fragmentation outputs two types of nanoparticles – WSe2 and Se – at long fragmentation times. We demonstrate that WSe2 NPs give a SERS signal an order of magnitude stronger than flakes, which underscores the importance of material design for enhancing SERS sensitivity. Our results will be helpful for a broad optical and chemical communities and contribute to the growing understanding of layered materials’ role in plasmon-free SERS.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"44 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144153869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Intrinsic self-healing polymer coatings with autonomous corrosion protection based on synergistic healing mechanisms 基于协同修复机制的具有自主腐蚀保护的本征自修复聚合物涂层

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2025-05-28 DOI: 10.1016/j.apsusc.2025.163641

Yang Luo, Yan Song, Jiahui Ma, Jingzhi Yang, Dongxiang Chen, Hanjun Gong, Guo Liang Li

引用次数: 0

Layered perovskite Bi7Fe2Ti2O17Cl: Universally efficient photo-piezocatalysis and mechanismic insight into the origin of polarity 层状钙钛矿Bi7Fe2Ti2O17Cl：普遍有效的光电催化和极性起源的机制洞察

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2025-05-28 DOI: 10.1016/j.apsusc.2025.163661

Sheng Guo, Na Tian, Fang Chen, Yihe Zhang, Hongwei Huang

{"title":"Layered perovskite Bi7Fe2Ti2O17Cl: Universally efficient photo-piezocatalysis and mechanismic insight into the origin of polarity","authors":"Sheng Guo, Na Tian, Fang Chen, Yihe Zhang, Hongwei Huang","doi":"10.1016/j.apsusc.2025.163661","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163661","url":null,"abstract":"Sillén-Aurivillius-type Bi-based photocatalysts have been drawing extensive attention as effective photocatalysts due to their intrinsic merits, including layered crystal structure, unique electron configuration, and tunable constitution. High-crystalline and well-developed Bi7Fe2Ti2O17Cl nanosheets are prepared using the moderate molten salt method. It exhibits a strong piezoelectric response and efficient photo-piezocatalytic activity towards various organic contaminants, with rhodamine B (RhB) degradation rates as high as 96 %. It also can remove highly concentrated and mixed wastewater consisting of tetracycline hydrochloride (TC), ciprofloxacin (CIP), chloramphenicol hydrochloride (TCT), and enrofloxacin (ENX). In particular, the catalyst demonstrates moderate removal efficiency towards refractory pollutants, including bisphenol A (BPA), paracetamol (APAP), and chlorphenamine (CPA). This can be attributed to the high-crystalline and robust polarity of Bi7Fe2Ti2O17Cl that is favorable for the key-steep of charge separation and migration. More importantly, it is revealed that the polarity of Bi7Fe2Ti2O17Cl mainly originated from the middle two perovskite layers in the four-sandwiched structure, with the dipole moment of perovskite layers adjacent to [Bi2O2]2+ layers offset. This work synthesizes a highly efficient photo-piezo catalyst to settle the environmental issue and provides new insights into the generation of piezoelectric response of Sillén-Aurivillius-type materials.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"33 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144165057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

D-Mannose-derived carbon dots and their application to plant growth d -甘露糖碳点及其在植物生长中的应用

IF 6.7 2区材料科学

Applied Surface Science Pub Date : 2025-05-28 DOI: 10.1016/j.apsusc.2025.163662

Peipei Zhang, Shiyu Gao, Li Xu, Hailan Lian, Changyan Xu

{"title":"D-Mannose-derived carbon dots and their application to plant growth","authors":"Peipei Zhang, Shiyu Gao, Li Xu, Hailan Lian, Changyan Xu","doi":"10.1016/j.apsusc.2025.163662","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163662","url":null,"abstract":"This study aimed to investigate the application potential of carbon dots (CDs) synthesized with D-mannose as a carbon source precursor and its nitrogen-doped derivatives (GCDs and GLCDs) in plant growth. GCDs and GLCDs were successfully synthesized using hydrothermal methods, and their morphology, structure, and optical properties were detailed. Transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM) showed that the prepared CDs had uniform spherical nanostructures with particle sizes of 2.63 nm and 1.22 nm, respectively. X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FT-IR) analysis revealed that the surface of CDs was rich in functional groups, such as hydroxyl, carbonyl, and nitrogen functional groups introduced by nitrogen doping. Ultraviolet–visible absorption spectroscopy and fluorescence spectra showed that GCDs and GLCDs had high quantum yields of 2.39 % and 6.60 %, respectively. In plant growth experiments, GCDs and GLCDs significantly affected the growth of mung bean sprouts, especially at a concentration of 0.08 mg/mL. The increase in chlorophyll content suggests that CDs may promote plant growth by increasing the efficiency of photosynthesis. The results show that D-mannose-derived carbon dots have great potential for application as a new type of plant growth regulator.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"98 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144165054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0