JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
·
2018
·Vol. 18
·期 4
·2993-2999
·
IF 1.354
Liu Chun-Ling,Hou Chang-Jun,Huo Dan-Qun
In this work, a simple room-temperature phosphorescence (RTP) method was first proposed to detect adriamycin, by using a functional material of Mn doped ZnS quantum dots (Mn–ZnS QDs) composited with poly(diallyldimethylammonium chloride) (PDDA). After PDDA was associated to the
Mn–ZnS QDs, the RTP intensity was significantly enhanced. As a result, Mn–ZnS QDs/PDDA nanoassemblies greatly improve the adriamycin detection ability of QDs and provide an important method for developing more effective and sensitive adriamycin detection sensor. The method based
upon RTP has a linear range from 0.5 to 64.0 μM with a detection limit (3σ/s) for adriamycin of 0.45 μM. The developed method was further successfully applied to detect adriamycin in human serum samples (diluted 50 times) with satisfactory results, and
the recovery ranged from 98.3 to 101.3.
研究领域:
分析化学
·
生物医学工程
·
药物分析
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Zhijun Lai,Xuyan Zhang,Shule Huang,Moran Qin,Jieming Huang,Siwei Wang,Zhang Zhang,Junming Liu
The world energy crisis is a significant challenge we facing today. To alleviate this problem, the idea of the further development and utilization of solar energy has been proposed. The application of solar energy could not only reduce human’s dependence on traditional fossil fuels but also mitigate greenhouse gas emissions. Photothermal materials, which can directly convert light into heat, are of great practical importance in the field of desalination and solar thermoelectric generators. Consequently, it is of great significance to develop novel photothermal material which can efficiently absorb solar radiation of wide spectrum and convert it into heat energy. Inspired by the light-sensitive structure of sea urchins, in this work we propose the preparation of a novel photothermal material Re/ReS 2 /ZnS/NDC with layered heterostructure. This material exhibits outstanding wide-band absorption capability and achieves a high photothermal conversion efficiency of 82.33 %. Under 1 Sun irradiation, Re/ReS 2 /ZnS/NDC/PVA could achieve the water evaporation rate of 3.15 kg·m −2 ·h −1 and the power density of 2.40 W·m −2 in the photothermal evaporation and photothermal-electric conversion experiments. This work provides a biomimetic design approach for synthesizing novel and efficient photothermal materials.
研究领域:
材料科学
·
能源工程
·
仿生学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Chuangchuang Gong,Jun Jiang,Jiawei Ding,Chenxu Wang,Yue Guo,Chunsheng Shi,Fang He
Yolk-shell structure materials with the light weight, excellent impedance matching and electromagnetic wave (EMW) loss ability were widely used in the field of absorbing materials. However, the previous researches on this kind of structure always focused on the comparison between solid structure and empty structure. Different from previous studies, in this paper, the effect of yolk-shell structure with different air layer thickness on EMW absorption was studied for the first time. Graphene oxide (GO) supported yolk-shell ZnS/Ni 3 S 4 absorbers with adjustable air layer were prepared by a simple two-step hydrothermal method. Through the equivalence of RLC resonant circuit and the elimination of the influence of polarization relaxation and conduction loss, it was found that yolk-shell structure with different air layer thickness will resonate with EMW of different frequencies, thus increasing the loss capacity of materials to EMW of this frequency. At the same time, Compared with the solid structure, the yolk-shell structure can not only make the material lighter, but also cause multiple reflections and scattering of EMW. Noteworthy, yolk-shell structure composite material exhibits the maximum reflection loss (RL) of −63.0 dB at 4.8 GHz and an effective absorption bandwidth (EAB) of 4.1 GHz at a thickness of 1.6 mm. This research provides an idea and basis for the design of absorbing materials that respond to different frequency EMW.
研究领域:
材料科学
·
电磁学
✓ 已验证
DOI
PubMed
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2021
·
IF 19.503
Fan Gao,Rui Lei,Xueyan Huang,Jie Yuan,Cankun Jiang,Wenhui Feng,Lulu Zhang,Ping Liu
Two-dimensional nanomaterial semiconductor is an efficient photocatalyst due to the unique properties such as abundant exposed active sites and large contact area with reactant. Herein, a hierarchical architecture that consists of highly dispersed ZnS nanosheets (ZnS NSs) with S vacancies vertically anchored on the Zn-In-layered-double-hydroxide (Zn-In-LDH) is successfully constructed through in situ etching growth process. The defective ZnS NSs grown perpendicularly on the Zn-In-LDH surfaces with abundant exposed area disperse extensively and exhibit good performance of photocatalytic hydrogen production under visible light irradiation. It is due to the synergistic effect of large specific surface area, separate vertically grown ZnS NSs and S defects, that the optical ZnS/Zn-In-LDH composite shows an improved H 2 evolution rate of 49.3 μmol h −1 g cat −1 (154.8 μmol h −1 g ZnS −1 ) and the AQE at 415 nm can be as high as 1.315 %. Besides, this work is expected to facilitate other analogous nanosheets synthesized based on the layered double hydroxides.
研究领域:
材料科学
·
纳米技术
·
能源与环境科学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Asif Hassan Raza,Long Li,Shumail Farhan,Wenjing Fu,Yan Wu
Two dimensional (2D) photocatalytic materials are desirable to achieve synergistic charge transfer and segregation. Here, we have developed 2D ZnIn 2 S 4 nanosheet (3–4 nm) that generates more active sites for excellent photocatalytic activity. Further, we have fabricated ZnS quantum dots (QDs) and ZnS nanoparticles (NPs) embedded with ZnIn 2 S 4 nanosheet in the form of ZnS QDs/ZnIn 2 S 4 and ZnS NPs/ZnIn 2 S 4 heterostructures prepared via one step hydrothermal method. The optimal ZnS QDs/ZnIn 2 S 4 presents the hydrogen evolution rate (HER) of 4.5 mmol g −1 h −1 which was approximately 5 and 34 times higher than that of their counterparts as well as about 3 times more efficient than ZnS NPs/ZnIn 2 S 4 heterostructure. The apparent quantum efficiency (AQE) of 21.2% was observed at 350 nm. The work functions determined through Ultraviolet photoelectron spectroscopy (UPS) elaborate the charge transfer mechanism. In situ KPFM validated the surface potential difference between the ZnS QDs and ZnIn 2 S 4 interfaces estimated about 55 mV which was approximately 2 times higher than ZnS NPs/ZnIn 2 S 4 . Theoretical calculation confirms the significant reduction in Gibbs free energy about −0.6 eV. Electron paramagnetic resonance (EPR) spectra suggest the development of a novel S-scheme mechanism and provides a unique insight into the charge transfer, separation and the surface photovoltage of heterostructure photocatalysts.
研究领域:
材料科学
·
化学
·
能源科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano Research
·
2024
·
IF 9.5
He Jinhua,Wang Chenhui,Liu Mingrui,Ramzan Muhammad,Long Zhiwei,Wu Xian-gang,Chen Yu,Zhong Haizheng
The potential use of large-size ZnSe quantum dots as blue emitters for display applications has greatly inspired the colloidal synthesis. Herein, we report the negative effects of side reactions of large-size ZnSe quantum dots. The side reactions between oleic acid and oleylamine generated amidation products and H 2 O, which led to the hydrolysis of Zn(OA) 2 to Zn(OH) 2 and the subsequent formation of zinc oxide (ZnO) and zinc bis[diphenylphosphinate] (Zn(DPPA) 2 ) precipitates. These side reactions resulted in the formation of a defective surface including a Se-rich surface and oxygen-related defects. Such negative effects can be overcome by adopting an etching strategy using potassium fluoride and myristic acid in combination. By overcoating a ZnS shell, blue emissive ZnSe/ZnS quantum dots with a maximum photoluminescence quantum yield of up to 91% were obtained. We further fabricated ZnSe quantum dots-based blue light-emitting diodes with an emission peak at 456 nm. The device showed a turn-on voltage of 2.7 V with a maximum external quantum efficiency of 4.2% and a maximum luminance of 1223 cd·m −2 .
研究领域:
材料科学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
SENSORS
·
2017
·Vol. 17
·期 1
·80
·
IF 2.677
Changwu Lv,Zhenhong Jia,Jie Lv,Hongyan Zhang,Yanyu Li
N-type macroporous silicon microcavity structures were prepared using electrochemical etching in an HF solution in the absence of light and oxidants. The CdSe/ZnS water-soluble quantum dot-labeled DNA target molecules were detected by monitoring the microcavity reflectance spectrum, which was characterized by the reflectance spectrum defect state position shift resulting from changes to the structures’ refractive index. Quantum dots with a high refractive index and DNA coupling can improve the detection sensitivity by amplifying the optical response signals of the target DNA. The experimental results show that DNA combined with a quantum dot can improve the sensitivity of DNA detection by more than five times.Keywords:N-type porous silicon;quantum dot labeling;QD-DNA;reflectance spectrum
研究领域:
材料科学
·
光学
·
生物传感
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED POWDER TECHNOLOGY
·
2018
·
IF 2.943
Xiaoli Zhou,Qinghua Yang,Huanping Wang,Feifei Huang,Junjie Zhang,Shiqing Xu
Ni doped ZnS nanopowders were synthesized by hydrothermal method. The as-synthesized ZnS nanopowders possessed zinc blende structure with the particle sizes of ∼20 nm, and they display a broad emission band from 400 nm to 700 nm centered at ∼540 nm. The influence of Ni 2+ doping and vacuum annealing on the structure, morphology and optical properties was investigated systematically. The results revealed that the emission peaks are blue shifted with Ni 2+ doping, and the emission peaks of 0.2, 0.4, 0.6, 0.8 and 1.0 mol% Ni 2+ doped ZnS nanopowders are centered at ∼520, ∼ 510, 500, 490 and 470 nm, respectively. While, the zinc blende phase transformed to wurtzite phase when annealing at 600 °C or higher, and the annealed samples exhibited three emission peaks positioned at ∼490, ∼547 and ∼580 nm. The results indicated that the as prepared Ni 2+ -doped ZnS nanopowders have a potential application in LED as light conversion layer.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
·
2024
·Vol. 40
·期 3
·484-489
·
IF 3.1
Xiao Qi,Liu Ting,Zhou Qianhe,Li Liangyu,Chang Chuntao,Gao Dawei,Li Danyang,You Feifei
Photocatalytic CO 2 reduction driven by solar light is a green approach that can decrease the greenhouse effect induced by high CO 2 concentration in the atmosphere and generate carbon-based chemicals/fuels as well. In this paper, non-metal co-catalysts ZnO/ZnS type-II hetero-junction nanoparticles with a rough surface were prepared through a hydrothermal process. When used as a photocatalyst for CO 2 reduction, the optimal one showed good cycle stability and a higher yield rate of 27.8 µmol·g −1 ·h −1 for CO 2 conversion into CO. The outstanding catalytic activity originated from i) the rich interfaces between ZnO and ZnS in the nanoscale could significantly reduce the delivery path of carriers and improve the utilization efficiency of photo-excited electron/hole pairs and ii) enriched surface oxygen defects could supply much more reaction active sites for CO 2 adsorption.
研究领域:
材料科学
·
环境科学
·
纳米技术
·
催化
·
可再生能源
✓ 已验证
DOI
高影响因子
Journal of Physical Chemistry C
·
2015
·
IF 4.772
Xiaojiao Kang,Lijian Huang,Yanchun Yang,Daocheng Pan
Approximately 3 g of water-soluble AgInS2/ZnS core/shell quantum dots (AIS/ZnS QDs) with a maximum photoluminescence quantum yield of up to 39.1% was synthesized in an aqueous solution of gelatin and thioglycolic acid (TGA). The composition of the AIS QDs could be readily adjusted by controlling the molar ratio of the starting Ag/In precursors in the reaction solution, which leads to a tunable emission ranging from 535 to 607 nm. The as-prepared core/shell QDs exhibit excellent photostability and water/buffer stability. More importantly, these cadmium-free hydrophilic AIS/ZnS core/shell QDs are biocompatible and can be directly utilized in cancer cell imaging.
研究领域:
材料科学
·
生物医学工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2014
·
IF 6.007
Linhui Yu,Wei Chen,Danzhen Li,Jubao Wang,Yu Shao,Miao He,Peng Wang,Xiuzhen Zheng
Hollow ZnO core/ZnS shell structure (ZnO/ZnS HCSS) has been successfully synthesized via a microwave-assisted hydrothermal approach. It is found that such a ZnO/ZnS HCSS exhibits higher photocatalytic activity than pure ZnO and ZnS toward the liquid-phase degradation of methyl orange (MO) under UV irradiation. What is more noteworthy, it is also demonstrated that ZnO/ZnS HCSS photocatalyst overcomes the photocorrosion in comparison to pristine ZnO by mean of cycling tests toward MO. The detailed degradation process of MO over ZnO/ZnS HCSS is investigated by liquid chromatography–mass spectrometry method. And then, the roles of active species in the photocatalytic process are discussed by using different types of active species scavengers. Meanwhile, combined with the electron spin resonance and photocurrent test, the degradation mechanism of the photocatalysts is proposed. It is hoped that the work could provide valuable information on the design of specific structure materials with more excellent properties and set the foundation for the further industrial application.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Dongyu Bian,Xiaoqin Cheng,Huijun Li,Senrong Qiao,Xiaomin Wang
SnS has been extensively studied as an anode material for sodium storage owing to its high capacity and unique layer spacing. However, the rapid capacity decay and sluggish reaction kinetics result in SnS exhibiting poor electrochemical performance , which prevents its practical application. Herein, the hollow SnS/ZnS nanoboxes (ZSS@NC) with rich phase boundaries have been constructed and utilized as the anode material of SIBs . The in-situ XRD analysis clearly illustrates the structural transformation of the electrode material during sodium storage and the regeneration of the heterointerface. Furthermore, kinetic analysis combined with ex-situ tests show that the excellent properties of heterostructure composites are inextricably linked to the synergistic effect of heterojunction surfaces. As expected, the ZSS@NC heterostructure provides a reversible capacity of 553.5 mA h g −1 at 0.2 A g −1 and good rate capability with an average capacity of 62.3% at 5 A g −1 compared to 0.1 A g −1 . The elevated Na-storage properties indicate that the heterointerface engineering strategy has a broad promise for improving the application of electrode materials.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）