INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2026
·
IF 9.2
Yubo Chai,Huihu Wang,Qianyu Wang,Lan zhang,Shizhe Zhang,Yun Zhao,Chenhuinan Wei,Xing Xiang
g-C 3 N 4 supports from different methods load CuCo catalysts for AB hydrolysis. • K + -intercalated g-C 3 N 4 lowest work function promotes electron transfer to metals. • The LSPR effect of CuCo enriches electrons at Co active sites. • The catalyst shows AB hydrolysis performance with a TOF of 36 min −1 at 298 K and 58 min −1 at 313 K. Hydrogen generation from ammonia borane (AB) hydrolysis over supported non-noble metal catalysts holds great promise. However, the low electron density at non-noble metal active sites and the difficulty in enhancing metal-support interactions remain critical challenges. In this work, K-intercalated crystalline g-C 3 N 4 (CNNK) was synthesized as a support for deposited CuCo bimetallic nanoparticles. The incorporated K + ions function as electron transfer channels. Compared to bulk g-C 3 N 4 (CNB), the CNNK exhibits a reduced work function from 4.2 eV to 3.4 eV. Moreover, the localized surface plasmon resonance (LSPR) effect of CuCo induces electron redistribution and enriches electron density on Co surfaces. Under visible-light irradiation, Cu 0.5 Co 0.5 /CNNK-3 shows much higher H 2 generation rate than Cu 0.5 Co 0.5 /CNB with a turnover frequency (TOF) of 36 min −1 at 298 K and 58 min −1 at 313 K. This work offers a strategy for the rational design of highly efficient catalysts for hydrogen evolution from AB hydrolysis. Download: Download high-res image (358KB) Download: Download full-size image
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APPLIED SURFACE SCIENCE
·
2023
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IF 6.7
Xintong Yao,Ruiqi Zhang,Minghui Zhu,Dafeng Zhang,Xipeng Pu,Junchang Liu,Hengshuai Li,Peiqing Cai
Some nonstoichiometric semiconductors exhibit excellent near-infrared (NIR) absorption due to their unique localized surface plasmon resonance (LSPR) effect, which is conducive to improving efficiency of light energy conversion to make them promising candidates for efficient photocatalytic hydrogen (H 2 ) evolution. Herein, we constructed a novel 1D/1D MoO 3-x /Mn 0.3 Cd 0.7 S (MO/MCS) S-scheme heterojunction with LSPR and photothermal double effects for boosted full solar spectrum-driven H 2 evolution. The light absorption of MO/MCS was expanded to NIR region through the LSPR effect of MO. Meanwhile, the impressive photothermal effect of MO can increase the surface temperature of the photocatalyst particles under light irradiation, which can further accelerate the photoreaction. According to the experimental and theoretical calculation results, the formation of S-scheme heterojunction was confirmed, which boosted the separation of photo-induced carriers. Consequently, the H 2 evolution performance of judiciously designed MO/MCS composites was significantly enhanced with an optimal H 2 evolution of 2.235 mmol·g −1 ·h −1 , 30.6 times that of pure MCS. This work provides a valuable insight into the development of highly efficient full solar spectrum-driven photocatalysts through utilizing the synergetic effects of LSPR effect, photothermal effect, and S-scheme heterojunction.
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ENVIRONMENTAL RESEARCH
·
2024
·
IF 7.7
Jiwen Li,Yaqian Duan,Linlin Wang,Jingjun Ma
The poor light absorption and low carrier separation efficiency of Titanium dioxide (TiO 2 ) limit its further application. The introduction of plasma metal Ag have the potential to solve these drawbacks owing to its plasma resonance effect. Thus core-shell structure Ag@TiO 2 plasma photocatalysts was prepared by using facile reduction method in this work. More specifically, Ag@TiO 2 composite catalysts with different Ag loading amounts were prepared in the presence of surfactant PVP. Ag@TiO 2 demonstrates excellent light absorption performance and photoelectric separation efficiency compared with pure TiO 2 . As a result, it displays excellent performance of Cr(VI) reduction under visible light. The optimal composite catalysts Ag@TiO 2 –5P achieves exceptional visible-light-driven photocatalytic Cr(VI) reduction efficiency of 0.01416 min −1 that is 2.29 times greater than pure TiO 2 . To investigate the role of PVP, we also synthesized Ag@TiO 2 -5 without PVP. The experimental results show that although Ag@TiO 2 -5 Cr(VI) reduction performance is superior to pure TiO 2 , it significantly decreases compared with Ag@TiO 2 –5P. The results of TEM and optoelectronic testing show that agglomeration of Ag particles leads to a decrease in the photoelectric separation efficiency of Ag@TiO 2 -5. The smaller Ag particles provide more active sites and demonstrating a stronger overall local surface plasmon resonance (LSPR) effect. DMPO spin-trapping ESR spectra testing indicates that ∙O 2 − and ∙OH are the main reactive species. This research provides a potential strategy to prepare Ag-based plasma photocatalysts for environment protection.
研究领域:
材料科学
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环境科学
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PubMed
高影响因子
Micromachines
·
2024
·Vol. 15
·期 6
·779
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IF 3
Jiacong Li,Yuxin Ni,Wei Zhang,Elvige Laure Nteppe Nteppe,Yurong Li,Yeshun Zhang,Hui Yan
The detection of the amount of aflatoxin M1 (AFM1) in milk is crucial for food safety. Here, we utilize a fiber optic (FO) localized surface plasmon resonance (LSPR) biosensor by constructing gold nanoparticle (AuNP) multimers, in which the nanogaps amplified the LSPR signal by the hot spot effect, and achieved a highly sensitive detection of f AFM1. Through the optimization of parameter conditions for the fabrication of the sensor and detection system, a high performance result from the FO LSPR biosensor was obtained, and the method for AFM1 detection was established, with a wide detection range of 0.05–100 ng/mL and a low limit of detection (LOD) of 0.04 ng/mL, and it has been successfully validated with the actual sample milk. Therefore, it is a good strategy to fabricate highly sensitive FO LSPR sensors for detecting AFM1 by constructing AuNP multimers, and this approach is suitable for developing other biosensors.
研究领域:
食品科学
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生物传感技术
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纳米材料科学
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高影响因子
POLYHEDRON
·
2026
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IF 2.8
Nan Wang,Lei Chen,Wanhe Du,Keying Zhu,Bingyu Zhang,Shengwen Chen,Zhiguo Sun,Jifen Wang
A novel Z -scheme CuWO 4 /Cu/Cu 2 O ternary heterojunction photocatalyst was successfully synthesized via a solvothermal approach, featuring the low-cost metallic copper (Cu) as an efficient electron mediator. This unique structure was designed to enhance Cu 2 O visible light capture capability and accelerate photogenerated charge separation, thereby efficiently degrading the recalcitrant antibiotic Rifampicin (RFP). Comprehensive characterizations (XRD, XPS, SEM, EDS) confirmed the successful construction of the heterojunction, where CuWO 4 and Cu particles are integrated onto the surface of the Cu 2 O. Compared to individual components and binary composites, the optimized CuWO 4 /Cu/Cu 2 O sample demonstrated significantly superior photocatalytic activity, achieving an impressive 88.0% RFP degradation rate within 80 min under visible light. The enhanced performance is primarily ascribed to the successful formation of a Z -scheme charge transfer pathway, where the localized surface plasmon resonance (LSPR) effect of the metallic Cu mediator promotes carrier migration, thereby improving both carrier separation efficiency and redox capacity. Kinetic analysis confirmed a degradation rate constant ( k ) of 0.02743 min −1 , approximately 2.8 times higher than that of pure Cu 2 O. Furthermore, the composite exhibited excellent stability, maintaining a degradation rate above 80% after five recycling runs and demonstrating robust performance across a broad pH range (3.0–7.0). Based on active species trapping and band structure analysis, a Z -scheme mechanism was proposed, highlighting O 2 − as the dominant active species. This study provides a facile and low-cost strategy for constructing highly efficient LSPR-enhanced Z -scheme photocatalysts for environmental remediation.
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Advanced Healthcare Materials
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2026
·
IF 11
Hang Yin,Xiaoye Li,Ao He,Baoying Dai,Heng Dong,Ziheng Pan,Jiangjiang Yan,Wenxuan Qie,Hao Zhang,Chuyi Zhou,Hao Wang,Rui Kong,Yannan Xie
The development of safe, efficient, and convenient strategies for teeth whitening and oral hygiene remains a significant challenge in modern dentistry. In this work, we report a multifunctional composite hydrogel (CBA) that enables simultaneous teeth whitening and antibacterial activity through the synergistic coupling of localized surface plasmon resonance (LSPR) and piezo-phototropic effects. The CBA hydrogel, comprising BaTiO 3 nanocubes decorated with Au nanoparticles and embedded in a biocompatible calcium alginate hydrogel matrix, can efficiently generate reactive oxygen species (ROS) under combined light and ultrasound stimulation. This dual activation greatly enhances pigment degradation on enamel surfaces and effectively inactivates pathogenic bacteria such as Fusobacterium nucleatum . Compared with the control group, the hydrogel exhibits three orders of magnitude reduction in bacteria inactivation and a six-fold increase in whitening efficiency, while maintaining excellent enamel integrity. Photoelectrochemical and photoluminescence analyses reveal that the synergistic interaction among the LSPR-induced hot electrons, piezoelectric polarization field, and semiconductor band modulation significantly improves charge separation and ROS generation efficiency. This work not only provides fundamental insights into the cooperative mechanism of LSPR and piezo-phototronic effects but also establishes a practical and safe approach for next-generation dental care materials.
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高影响因子
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
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2025
·
IF 5.9
Yizhuo Qian,Qi Wang
Surface plasmon resonance (SPR) technology is an advanced analytical method in the field of biological analytes detection. In order to break the limit of sensitivity and limit of detection (LOD) of optical fiber SPR sensor and enhance small change detection, a novel high-sensitivity optical fiber localized surface plasmon resonance (LSPR) sensor modified by Cerium Fluoride (CeF3) and gold nanobipyramids (Au NBPs) is proposed in this work. The refractive index sensitivity of the sensor is as high as 9414.90 nm/RIU, which is 4.99 times that of the traditional SPR sensor. The CeF3/Au NBPs sensor was applied to the detection of interleukin-1β (IL-1β) and interleukin-10 (IL-10). For IL-1β, the sensor's sensitivity and LOD are 11.16 nm/(μg/mL) and 0.90 ng/mL. Compared with the traditional sensor, the sensitivity is increased by 3.73 times, and the LOD is reduced to 28.48%. For IL-10, the sensitivity and LOD of the sensor are 10.90 nm/(μg/mL) and 0.92 ng/mL, respectively. Compared with traditional sensors, the sensitivity is increased by 4.29 times, and the LOD is reduced to 23.35%. The sensor modified by CeF3 and Au NBPs shows excellent performance and broad development prospects in the field of low concentration biological analytes detection.
研究领域:
生物医学工程
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纳米技术
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光学传感
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ChemistrySelect
·
2025
·Vol. 10
·期 27
·e00089
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IF 2
Zhiying Zhao,Zhiwen Jiang,Feifei Chen,Siqi Chen,Anhua Wei,Qianwei Tang,Hua Yao,Zihua Wu
Graphical Seedless synthesis of monodisperse gold nanorods (9.9 nm diameter, 658–1028 nm LSPR) using m-phenylenediamine achieves high shape yield. Key mechanistic insights reveal distinct seed-formation kinetics and gold seed quantity critically govern diameter, monodispersity, and yield, differentiating seedless from seed-mediated routes. This advances understanding of tunable nanorod fabrication. The ever-increasing demand for convenient and rapid preparation of size- and spectral-tunable gold nanorods underscores the significance of the seedless synthetic method, yet elucidating the intricate underlying mechanism that sets it apart from the seed-mediated growth route continues to pose a formidable challenge. In this study, we introduce a seedless technique that utilizes m-phenylenediamine as a reducing agent to facilitate the synthesis of monodisperse gold nanorods. These nanorods exhibit a high shape yield, a minimal diameter of approximately 9.9 nm, and a precisely tunable longitudinal surface plasmon resonance wavelength ranging from 658 to 1028 nm. Furthermore, a pivotal observation has arisen, emphasizing the critical role played by the distinct kinetics of seed formation and the precise quantity of gold seed particles throughout the growth process. Notably, the variations in these parameters between seed-mediated and seedless synthetic routes exert a profound influence on the diameter, shape yield, and monodispersity of the synthesized gold nanorods. This insight provides crucial comprehension into the intricate synthetic mechanisms unique to the seedless approach for fabricating these nanoparticles.
研究领域:
纳米技术
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材料科学
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化学合成
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等离激元学
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高影响因子
ACS Applied Materials & Interfaces
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2018
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IF 8.097
Fang Pu,Yanyan Huang,Zhiguang Yang,Hao Qiu,Jinsong Ren
The sizes, shapes, and surface characteristics of nanomaterials determine their unique physical, chemical, and biological properties. Localized surface plasmon resonance (LSPR) is one of the unique optical properties of noble-metal nanoparticles. The synthesis of nanomaterials using biomolecules as templates offers an excellent strategy to control and regulate their features. Herein, for the first time, we demonstrate a green synthesis approach of silver nanoparticles (AgNPs) using nucleotide-based assemblies as templates. Moreover, we investigate the influence of different nucleotide-based assemblies and metal ions on the preparation of AgNPs, implying that AgNPs with different LSPR absorptions originating from their surrounding and size could be synthesized. The synthetic route is green, energy-effective, and feasible. On the basis of the unique LSPR-controlled property, the AgNP composites were applied for cryptography, biothiol detection, and designing logic gates. This work offers a promising method for the synthesis of nanomaterials with multiapplications.
研究领域:
纳米技术
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材料科学
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化学
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生物分子工程
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光学
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PubMed
高影响因子
RSC Advances
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2014
·Vol. 4
·期 98
·55094-55099
·
IF 3.708
Shao Qing Lie,Hong Yan Zou,Yong Chang,Cheng Zhi Huang
In this paper, negatively charged Cu2−xSe nanoparticles (NPs), stabilized by poly(styrene sulfonic acid)sodium (PSS) (PSS–Cu2−xSe NPs), were synthesized via a simple templated method, which exhibited strong localized surface plasmon resonance (LSPR) absorption in the near-infrared (NIR) region. It was found that the prepared PSS–Cu2−xSe NPs could be aggregated by lysozymes (Lys) selectively through the electrostatic interaction, since the Lys was positively charged in a neutral medium, producing a red shift of the LSPR band starting from 980 nm to 1300 nm area. With different concentrations of Lys, the LSPR band can be dynamically tuned, and the absorbance ratio of A1300/A980 has a good linear relationship with the concentration of Lys in the range of 5–100 nM, thus supplying an effective way to tune LSPR in the NIR region of semiconductors that might be applied for sensing and photothermal conversion sciences and technologies in the NIR region.
研究领域:
材料科学
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纳米技术
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光学
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生物技术
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高影响因子
CHINESE JOURNAL OF CATALYSIS
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2022
·
IF 12.92
Yue Huang,Kai Dai,Jinfeng Zhang,Graham Dawson
Non-stoichiometric W 18 O 49 (WO) prepared by solvothermal method has excellent NIR absorption due to the localized surface plasmon resonance effect caused by oxygen vacancies. This has great potential in the field of using sunlight to convert carbon dioxide into organic fuels. In addition, through the amination of CdSe, the one-dimensional/two-dimensional step-scheme (S-scheme) WO/CdSe-diethylenetriamine (WO/CdSe-D) photocatalyst with electron transmission channels driven by visible light to NIR light is constructed by microwave solvothermal method. The LSPR of WO and the synergistic effect of coupling semiconductors to construct S-scheme heterojunctions can improve light utilization and achieve efficient charge carrier transfer efficiency. The optimized photocatalyst of 35%WO/CdSe-D has the best CO 2 reduction performance compared to WO and CdSe-D, and the yield is 25.37 µmol h –1 g –1 . X-ray photoelectron spectroscopy was used to verify the charge transfer path of the S-scheme WO/CdSe-D heterojunction. This work provides a possibility for the application of non-stoichiometric oxides rich in oxygen vacancies in the field of photocatalytic CO 2 reduction.
研究领域:
材料科学
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环境科学
·
能源科学
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Qiang Bi,Kechun Wang,Yi Zhao,Guangdong Wu,Yanyan Zhou,Changbin Tang,Zhihua Leng,Juanqin Xue
Graphitic carbon nitride (g-C 3 N 4 ) is restricted by its narrow light absorption range, which results in low photocatalytic efficiency. To address this problem, a plasmon- and upconversion-enhanced ternary photocatalyst (denoted as GdF 3 @g-C 3 N 4 @Ag) was subtly designed and synthesized in situ. The g-C 3 N 4 nanosheets were encapsulated on the GdF 3 by a simple vapor deposition method, which has not been reported in the literature. The GdF 3 @g-C 3 N 4 @Ag composite exhibits full-spectrum responsiveness and remarkably improved photocatalytic activity in the degradation of tetracycline hydrochloride compared with plain g-C 3 N 4 . The degradation rate constant of the best-performing photocatalyst GdF 3 @g-C 3 N 4 @5%Ag (2.618 × 10 −2 min −1 ) is higher than that of g-C 3 N 4 (1.723 × 10 −2 min −1 ) under irradiation at λ ≥ 400 nm. This study develops a full-spectrum responsive photocatalyst based on GdF 3 @g-C 3 N 4 @Ag, showing its great potential to fully utilize the solar spectrum, and provides important insights into the construction of full-spectrum responsive photocatalysts.
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