MATERIALS RESEARCH BULLETIN
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2023
·
IF 5.4
Tao Wang,Jinyu Wang,Chunlan Li,Yu Wu,Yuxuan Sun,Xiqing Liu,Xiaoli Su,Hongquan Zhan,Yongqing Wang
Carbon materials can act as electron transfer media to effectively enhance photocatalytic performance. In this study, carbon dots (CDs) were prepared using green tea to modify Ni 2 P/NiCo-LDH heterostructures. Benefitting from the Co-P bond formed between Ni 2 P and NiCo-LDH and biomass CDs, charge transfer was improved via dual channel. Ni 2 P and CDs acted as active sites for improving the photocatalytic performance. Owing to the synergistic process, the photoresponse capability of CDs/Ni 2 P/NiCo-LDH was significantly increased. In addition, the possible active species in the photocatalytic process are discussed. This study provides a design for ternary photocatalysts with carbon materials and phosphides.
研究领域:
材料科学
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环境科学
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高影响因子
DIAMOND AND RELATED MATERIALS
·
2024
·
IF 4.3
Zhengpei Nie,Wenyu Zhong,Jiaman Liang,Qunwei Shu,Kejun Tan
Biomass carbon dots (CDs) typically suffer from red fluorescence quenching in water, limiting their practical applications. This study introduces a simple pH regulation strategy to enhance water-solubility by converting lipophilic surface groups to hydrophilic ones. Using mugwort as a precursor, novel triple-emission biomass-based CDs (T-CDs) with good water-solubility were successfully synthesized. Comprehensive structural and spectral characterizations were performed to elucidate the properties of the T-CDs and the origins of their luminescence, providing valuable insights for the design of future CDs. The T-CDs were further modified with hexadecyl trimethyl ammonium bromide (CTAB), producing modified triple-emission CDs (mT-CDs) with enhanced photostability. These mT-CDs were effectively employed as fluorescent probes for selective dopamine (DA) sensing, achieving a linear range of 0.8 to 300 μM and a limit of detection (LOD) of 0.17 μM, demonstrating their potential in biochemical applications. To explore additional applications, mT-CDs were incorporated into polyvinyl alcohol (PVA) to create thin films. These films exhibit pink fluorescence under 254 nm UV light and phosphorescence after the UV source is removed, making them suitable for information encryption and anti-counterfeiting purposes.
研究领域:
材料科学
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生物传感
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化学工程
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高影响因子
JOURNAL OF FLUORESCENCE
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2022
·Vol. 33
·期 3
·1111-1123
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IF 2.525
Zhang Dianwei,Zhang Furui,Wang Shengnan,Hu Sha,Liao Yonghong,Wang Fenghuan,Liu Huilin
Amino- and sulfhydryl- functionalized biomass carbon dots (BCDs) were prepared by one-pot reverse microemulsion for specific recognition of ferric ions (Fe 3+ ) and L-cysteine (L-Cys). Green grapefruit peel was used as the carbon source while aminosilane and mercaptosilane were used as N- and S-supplier. Following the adsorption of Fe 3+ on the surfaces of BCDs-NH 2 and BCDs-SH, the fluorescence responses was quenched step by step, while adding L-Cys to the BCDs-NH 2 /Fe 3+ system restored the fluorescence. The BCDs-NH 2 and BCDs-SH system exhibited extremely low limits of detection for Fe 3+ of 3.2 and 3.0 nM, respectively, within a wide linear ranges of 0.006–200 μM and 0.004–200 μM, respectively. The BCDs-NH 2 /Fe 3+ systems were used as an optosensor for L-Cys in the concentration ranges of 0.08–30 and 30–1000 μM with a detection limit of 65 nM. Developed BCDs-NH 2 and BCDs-SH were able to respond to Fe 3+ in water samples with satisfactory recoveries of 100.1%-103.1% and 94.6%-108.5%, respectively, and the BCDs-NH 2 /Fe 3+ system was also able to respond to BCDs-NH 2 /Fe 3+ in actual lake water samples with recoveries from 87.3% to 98.8%. Meanwhile, The BCDs-NH 2 exhibited good photoluminescence and stability, and the with a fluorescence quantum yield was as high as 25%. This work demonstrates the feasibility of using such materials to remove hazardous ions from water and employing the resulting complexes for optosensing in a sustainable manner.
研究领域:
材料科学
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环境科学
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分析化学
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DOI
PubMed
高影响因子
Advanced Science
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2025
·
IF 14.1
Ke-Fei Xu,Zihao Wang,Macheng Cui,Yuhan Jiang,Chengcheng Li,Zi-Xi Wang,Ling-Yi Li,Chenyang Jia,Lijie Zhang,Fu-Gen Wu
Gram-positive bacteria pose significant threats to human health, necessitating the development of targeted bacterial detection and eradication strategies. Nevertheless, current approaches often suffer from poor targeting specificity. Herein, the study utilizes purple rice lixivium to synthesize biomass carbon dots (termed BCDs) with wheat germ agglutinin-like residues for precisely targeting Gram-positive bacteria. Subsequently, fluorescein isothiocyanate (FITC) molecules are grafted onto BCDs to yield FITC-labeled BCDs (termed CDFs), which can selectively and rapidly (≤5 min) stain bacterial cell wall and particularly target the peptidoglycan component. Strikingly, CDFs achieve superselective visualization of Gram-positive bacteria even in the presence of mammalian cells and Gram-negative bacteria. Furthermore, protoporphyrin (PpIX) molecules are conjugated onto BCDs to yield PpIX-modified BCDs (termed CDPs), which can induce bacterial aggregation and in situ generate singlet oxygen for realizing enhanced antibacterial photodynamic therapy (PDT). At the minimum bactericidal concentration of CDPs (PpIX: 5 µg mL −1 ), CDP-mediated PDT disrupts bacterial structure and metabolism pathways, thereby affecting bacterial interactions to eradicate biofilms. Importantly, CDP-mediated PDT efficiently modulates antiinflammatory responses to promote wound healing in the bacteria-infected mice. This study underscores the significance of harnessing renewable and cost-effective biomass resources for preparing Gram-positive bacteria-targeting theranostic agents, which may find potential clinical applications in the future.
研究领域:
微生物学
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材料科学
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医学
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生物化学
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DOI
PubMed
高影响因子
CARBON
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2020
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IF 8.821
Ping Wang,Dongxiao Zheng,Shouxin Liu,Mengkai Luo,Jian Li,Shen Shen,Shujun Li,Liangliang Zhu,Zhijun Chen
Embedding luminogens into a well-selected rigid matrix has been a particularly attractive way of preparing long afterglow materials. On this basis, seeking green, low-cost and sustainable materials or strategies, remains challenging but desirable. Prompted by the generation of wood fluorescence, a general strategy for preparing long afterglow materials successfully developed by embedding biomass-derived carbon dots into cellulose fibrils. Internal hydrogen bonding interactions between cellulose fibrils and carbon dots strongly erected a confinement effect for protecting the triplet exciton from quenching, leading to an increase of phosphorescence lifetime by seven orders of magnitude. These properties, which originated from such a green and convenient approach, were able to match most of reported long afterglow examples. Moreover, thanks to the humidity sensitivity of cellulose, the materials can behave a unique humidity-dependent phosphorescence property, showing superior potential application in advanced anti-counterfeiting and encryption.
研究领域:
材料科学
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可持续发展
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光学材料
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高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
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2018
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IF 4.841
Haochi Liu,Lan Ding,Ligang Chen,Yanhua Chen,Tianyu Zhou,Huiyu Li,Yuan Xu,Li Zhao,Ning Huang
Biomass carbon dots (CDs) prepared by sweet potato peels were superior fluorophores with low toxicity and excellent photostability. A novel designed fluorescence probe for specific recognition and sensitive detection of oxytetracycline (OTC) was fabricated with CDs and molecularly imprinted polymer (MIP). The quenching of CDs happened when rebinding with OTC due to electron-transfer-induced fluorescence quenching mechanism. The fluorescence probe was successfully applied in honey with the recoveries ranging from 90.2% to 97.3%. The detection limit of OTC was 15.3 ng mL −1 . This work provides promising perspectives that the development of fluorescent MIP will be valuable for rapid analysis in complex samples.
研究领域:
分析化学
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环境科学
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食品科学
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DOI
高影响因子
Journal of Environmental Chemical Engineering
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2022
·
IF 7.968
Hui Yang,Xiankun Su,Li Cai,Zhenchun Sun,Yechun Lin,Jing Yu,Likai Hao,Cui Liu
High-efficient conversion of the waste biomass into eco-friendly novel bifunctional materials for selective monitoring and effective removal of mercury ions (Hg 2+ ) is of great significance to achieve the environment sustainable development, but has not attracted enough attention. Herein, we exploited glutathione (GSH) assisting waste tobacco leaf as the biomass-related precursors to successfully yield a novel red fluorescence emission biomass-based carbon nanodots (CDs) with a remarkably large Stokes shift of ∼ 232 nm through one-pot hydrothermal method. Owing to the synergistic Hg-S bond and the coordination effects of the Hg 2+ to the abundant –COOH, –NH 2 and –OH groups on the surface of CDs, this proposed biomass-based CDs showed a red fluorescence decrease response for Hg 2+ with a high selectivity and a lower detection limit of 0.45 μM in environmental water samples. Furthermore, this binding endowed this proposed biomass-based CDs possessed a high removal efficiency of above 99.4% for Hg 2+ as well. This work showed a novel insight into recycling the waste tobacco leaf into novel, economic, efficient, reliable, and eco-friendly biomass-based CDs for simultaneously precise traceability and high-efficient removal of Hg 2+ pollution in environmental matrices.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
DIAMOND AND RELATED MATERIALS
·
2023
·
IF 4.1
Fenglin Tang,Jiaojiao Tang,Dan Wang,Caixia Deng,Shuang Li,Xiupei Yang
Herein, a hexagonal molybdenum trioxide/graphite carbon nitride heterojunction modified by biomass carbon dots was synthesized by a simple one-pot method and successfully applied to the degradation of methylene blue as a photocatalyst . It was confirmed that under optimal compounding conditions, graphite carbon nitride and hexagonal molybdenum trioxide combined to form a heterojunction, and the coupling interface accelerated the charge transfer efficiency. The modification of supplementary biomass carbon dots can improve the photocatalytic activity of the photocatalyst for the degradation of methylene blue. The proposed heterojunction shows better photocatalytic activity than bulk graphite carbon nitride and has good reusability and stability. After irradiation with simulated visible light for 1 h, the degradation rate of methylene blue by the heterojunction reached 67 %, which was 2.7, 2.6 and 5.8 times higher than that of bulk graphite carbon nitride, pure hexagonal molybdenum trioxide and pure carbon dots, respectively.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
Analytical Methods
·
2023
·Vol. 15
·期 12
·1569-1575
·
IF 3.1
Qianji Li,Xiwen Wu,Xiaohuan Zhang,Wenen Su,Yan Tan,Pengfei Fan,Jinquan Liu,Shengyuan Yang
Eco-friendly biomass carbon dots (CDs) with blue fluorescence emission were rapidly synthesized by a microwave method. Based on the inner filter effect (IFE) between oxytetracycline (OTC) and CDs, the fluorescence of CDs could be selectively quenched by OTC. Therefore, a simple and time-saving fluorescence sensing system for the detection of OTC was established. Under optimal experimental conditions, the concentration of OTC showed a good linear relationship with fluorescence quenching values (ΔF) in the range of 4.0–100.0 μmol L−1, a corresponding correlation coefficient (r) of 0.9975, and a detection limit of 0.12 μmol L−1. The method has the advantages of low cost, time-saving, and green synthesis that could be used for the determination of OTC. Moreover, possessing high sensitivity and specificity, this fluorescence sensing method was successfully applied for detecting OTC in milk, indicating its potential applications in food safety.
研究领域:
分析化学
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环境科学
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食品科学
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DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2025
·Vol. 37
·期 1
·45
·
IF 2.8
Luo Youmei,Gao Ziwei,Zhan Jiayin,Liu Shengda,Liu Guixia
Chromium (Cr), especially Cr(VI), is a notorious heavy metal pollutant with high toxicity, posing serious threats to ecosystems and human health. Recently, biomass-derived carbon dots (B-CDs) have emerged as promising materials in the field of sensing due to their low cost, environmental friendliness, and good optical properties. Developing a simple, sensitive, selective, and portable sensing platform based on B-CDs for the efficient detection of Cr(VI) in real environmental water samples is urgently required. Here, nitrogen-doped blue-fluorescent B-CDs were successfully synthesized via a one-step hydrothermal method utilizing loofah biomass as the carbon source and ethylenediamine as the nitrogen source. The as-prepared B-CDs possess abundant surface functional groups, excellent water solubility, remarkable fluorescence stability, and high selectivity toward Cr(VI). The B-CDs exhibit a wide linear detection range for Cr(VI) from 10 to 1000 μmol L −1 with a low detection limit of 194 nmol L −1 . The quenching mechanism was determined to be an internal filter effect. This method has been effectively applied to the accurate analysis of real water samples. Furthermore, portable paper-based and hydrogel-based sensors incorporating B-CDs have been developed, enabling convenient on-site detection of Cr(VI) in practical scenarios.
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高影响因子
LUMINESCENCE
·
2024
·Vol. 39
·期 5
·e4778
·
IF 3.2
Yu Yin,Xiwen Wu,Chongyang Huang,Yaolin Dong,Jinquan Liu,Yan Tan,Hao Liang,Shengyuan Yang
To establish a new method for detecting crystal violet (CV), a harmful dye, herein, a genre of novel biomass carbon dots (CDs) was synthesized via a microwave method and employed as a fluorescent probe, in which water spinach and polyethylene glycol (PEG) performed as raw materials. Based on the inner filter effect (IFE) between the luminescent CDs and CV, the blue emission of this probe at 430 nm could be quenched by CV. Hence, a new strategy was proposed to selectively determine CV in aquaculture ambient. Moreover, under the optimal experiment conditions, this method showed a good linearity between the concentration of CV ( c ) and fluorescence quenching rate (Δ F/F 0 ) in the concentration range of 4–200 μmol/L with the corresponding correlation coefficient ( r ) and the detection limit of 0.997 and 710 nmol/L, respectively. With advantages of environmental protectivity, sensitivity, affordability, and user-friendliness, the facilely fabricated CDs could be successfully applied in detecting CV in aquaculture samples, providing a technical foundation for monitoring the pollution of CV and ensuring the quality and safety of aquatic products.
研究领域:
材料科学
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环境科学
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分析化学
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DOI
PubMed
高影响因子
Chemical and Biological Technologies in Agriculture
·
2025
·Vol. 12
·期 1
·1-16
·
IF 5.2
Ren Gang,Zhang Wen,Tang Yuan,Zhong Bangyu,Ming Liangshan,Fan Qimeng,Huang Jia,Liu Hongning,Li Zhixin,Luo Ping,Dong Zishu
Forestry pests pose serious ecological challenges, yet their biological value remains underexplored. This study aimed to convert the destructive longhorn beetle Glenea cantor ( G. cantor ) into biomass carbon dots (GC-CDs) with both antibacterial and wound healing properties. GC-CDs were synthesized by a simple microwave-assisted method and characterized by techniques such as transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS). The particles were quasi-spherical with an average size of 1.02 nm and displayed excellent water solubility. In vitro assays confirmed the low cytotoxicity and hemolysis rates of GC-CDs, while in vivo evaluations showed no systemic toxicity. GC-CDs inhibited Escherichia coli growth and enhanced cell migration and wound closure in scratch assays, Transwell tests, and mouse wound models. These results demonstrate that GC-CDs possess dual antibacterial and wound healing activities, offering a sustainable strategy for transforming forestry pests into valuable biomedical resources. Graphical
研究领域:
林业害虫管理
·
纳米生物技术
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生物医学工程
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微生物学
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材料科学
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高影响因子
危险品化学品经营许可证（带存储）