Plants-Basel
·
2024
·Vol. 13
·期 24
·3495
·
IF 4
Lishu Yu,Lijun Bu,Dandan Li,Kaili Zhu,Yongxue Zhang,Shaofang Wu,Liying Chang,Xiaotao Ding,Yuping Jiang
To investigate the effects of different light qualities on the growth, photosynthesis, transcriptome, and metabolome of mint, three treatments were designed: (1) 7R3B (70% red light and 30% blue light, CK); (2) 7R3B+ far-red light (FR); (3) 7R3B+ ultraviolet light A (UVA). The results showed that supplemental FR significantly promoted the growth and photosynthesis of mint, as evidenced by the increase in plant height, plant width, biomass, effective quantum yield of PSII photochemistry (Fv’/Fm’), maximal quantum yield of PSII (Fv/Fm), and performance index (PI). UVA and CK exhibited minimal differences. Transcriptomic and metabolomic analysis indicated that a total of 788 differentially expressed genes (DEGs) and 2291 differential accumulated metabolites (DAMs) were identified under FR treatment, mainly related to plant hormone signal transduction, phenylpropanoid biosynthesis, and flavonoid biosynthesis. FR also promoted the accumulation of phenylalanine, sinapyl alcohol, methylchavicol, and anethole in the phenylpropanoid biosynthesis pathway, and increased the levels of luteolin and leucocyanidin in the flavonoid biosynthesis pathway, which may perhaps be applied in practical production to promote the natural antibacterial and antioxidant properties of mint. An appropriate increase in FR radiation might alter transcript reprogramming and redirect metabolic flux in mint, subsequently regulating its growth and secondary metabolism. Our study uncovered the regulation of FR and UVA treatments on mint in terms of growth, physiology, transcriptome, and metabolome, providing reference for the cultivation of mint and other horticultural plants.
研究领域:
植物生理学
·
分子生物学
·
园艺学
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DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Ningfei Huang,Wei Zhang,Yang Ye,Tao Liu,Wei Xie,Qiuzhi Liang,Jie Lin,Zuyong Feng,Guangting Xiong
Based on the SrLaLiWO 6 matrix, the study satisfactorily synthesized a red phosphor doped with Eu 3+ . Regulation of Ca 2+ doping to control the red-to-blue emission ratio of the phosphor. Analysis of the content and structure of the samples verified the production of high-purity (Sr,Ca)LaLiWO 6 : Eu 3+ phosphor. When blue light at 464 nm excites the phosphor, it emits intense red light. The emission intensity of Eu 3+ ions rose when Ca 2+ was incorporated to the SrLaLiWO 6 matrix. In the meantime, the Sr 0.96 Ca 0.04 La 0.7 LiWO 6 : 0.3Eu 3+ phosphor shows comparatively high quantum efficiency and thermal stability. When the blue light-emitting chip is coupled with the Sr 0.96 Ca 0.04 La 0.7 LiWO 6 : 0.3Eu 3+ phosphor, the emission spectrum produced matches the absorption spectra of plant pigments. Consequently, the prepared sample is an excellent red-emitting phosphor with potential application value.
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DOI
高影响因子
ACS Nano
·
2025
·
IF 16
Xianyao Wu,Lanjing Wang,Guoshuai Zhang,Lin Ma,Dawei Wang,Yafei Zhang,Yuxin Bao,Xiaojia Wu,Xiang Li,Yufeng Hu,Hong-shang Peng
Silica coating is widely employed to improve the stability of perovskite quantum dots (PQDs) as light conversion phosphors. When used in combination with micro-light-emitting diodes (micro-LEDs) for next-generation displays, however, most silica-coated PQDs (Si-PQDs) face some challenges: (i) polarity mismatch between silica and organic solvent undermines the fabrication of the phosphor film by unstable PQD ink; (ii) aggregation-induced large particle size hinders the micron-scale processability. Herein, we report a ligand-assisted silica-coating strategy to prepare highly monodispersed Si-PQDs for micro-LEDs. Briefly, pristine CsPbBr3 QDs capped with aminosiloxane were first formed followed by surface passivation with the zwitterionic ligand lecithin and subsequent tetramethoxysilane-mediated silica coating. The as-prepared Si-PQDs were highly monodispersed with well-defined core–shell structure, exhibiting uniform rectangular morphology, narrow-band green emission, ultrahigh photoluminescence quantum yield (∼98%), and high stability against light and water. Importantly, the Si-PQDs were well dispersed in organic solvents, which could not only be fabricated into white LEDs and screen-printed patterns but also patterned into uniform 20 μm pixels using a microfluidic technique. These results demonstrate that the one-pot synthesized Si-PQDs are very promising light conversion phosphors for micro-LED-based displays and solid-state lighting.
研究领域:
纳米技术
·
材料科学
·
光电子学
·
显示技术
·
半导体器件
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DOI
PubMed
高影响因子
Environmental Progress & Sustainable Energy
·
2021
·Vol. 41
·期 1
·e13714
·
IF 2.431
Xiaowei Wang,Junkai Zhang,Fengmin Wu,Junqing Cai,Jie Luo,Erpeng Zhou,Yongping Niu
Graphitic carbon nitride (g-C 3 N 4 ) is a fascinating nonmetallic photocatalyst for the removal of environmental pollutants. The fumed silica/g-C 3 N 4 (gCN-FS) composite photocatalysts were successfully fabricated by a combination of solvent volatilization and post-annealing methods. The introduction of SiO 2 not only widens the absorption range of visible light, but also enhances the specific surface area of g-C 3 N 4 . The gCN-FS-3 composite has a BET surface area of 129.89 m 2 /g, which is ~3.3 times as much as that of g-C 3 N 4 (39.54 m 2 /g). The gCN-FS composites have markedly improved rhodamine B (RhB) photodegradation activity in comparison to pure g-C 3 N 4 , bulk g-C 3 N 4 and P25 under 557 nm yellow-green light emitting diode light irradiation. The gCN-FS-3 has the highest RhB photodegradation rate, which is ~9.67-, 11.81-folds as compared to bare g-C 3 N 4 and bulk g-C 3 N 4 , respectively. The coupling effect between the increase in specific surface areas and the inhibition effect of SiO 2 on photogenerated electron/hole pairs recombination is responsible for the enhanced visible light photocatalytic activity of gCN-FS composite. Superoxide and holes are responsible for the RhB photocatalytic degradation. Furthermore, no apparent loss of photocatalytic activity over five cycles is observed, which indicates that the gCN-FS composites have considerable stability and reusability in the photodegradation process. The gCN-FS composites show great promise in visible light driven photocatalysis for environmental applications.
研究领域:
环境科学
·
材料科学
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DOI
高影响因子
Polymers
·
2018
·Vol. 10
·期 5
·474
·
IF 2.935
Yuting Zou,Liang Fang,Tianqi Chen,Menglong Sun,Chunhua Lu,Zhongzi Xu
Two issues are required to be solved to bring intrinsically self-healing polymer coatings into real applications: remote activation and satisfied practical properties. Here, we used MXene, a newly reported two-dimensional material, to provide an epoxy coating with light-induced self-healing capabilities and we worked to enhance the properties of that coating. The self-healing coatings had a reversible crosslinking network based on the Diels-Alder reaction among maleimide groups from bis(4-maleimidopheny)methane and dangling furan groups in oligomers that were prepared through the condensation polymerization of diglycidylether of bisphenol A and furfurylamine. The results showed that the delaminated MXene flakes were small in size, around 900 nm, and dispersed well in self-healing coatings. The MXene flakes of only 2.80 wt % improved greatly the pencil hardness of the coating hardness from HB to 5H and the polarization resistance from 4.3 to 428.3 MΩ cm−2. The self-healing behavior, however, was retarded by MXene flakes. Leveling agent acted a key part here to facilitate the gap closure driven by reverse plasticity to compensate for the limitation of macromolecular mobility resulting from the MXene flakes. The self-healing of coatings was achieved in 30 s by thermal treatment at 150 °C. The efficient self-healing was also demonstrated based on the recovery of the anti-corrosion capability. MXene flakes also played an evident photothermal role in generating heat via irradiation of near-infrared light at 808 nm and focused sunlight. The healing can be quickly obtained in 10 s under irradiation of near-infrared light at 808 nm having a power density of 6.28 W cm−2or in 10 min under irradiation of focused sunlight having a power density of 4.0 W cm−2.Keywords:self-healing;epoxy coating;MXene;Diels-Alder reaction;photothermal effect
研究领域:
材料科学
·
化学工程
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DOI
PubMed
高影响因子
Nanomaterials
·
2022
·Vol. 12
·期 9
·1454
·
IF 5.719
Lufeng Hu,Zhixiang Ye,Dan Wu,Zhaojin Wang,Weigao Wang,Kai Wang,Xiangqian Cui,Ning Wang,Hongyu An,Bobo Li,Bingxi Xiang,Mingxia Qiu
Highly luminescent FAPb0.7Sn0.3Br3nanocrystals with an average photoluminescence (PL) quantum yield of 92% were synthesized by the ligand-assisted reprecipitation method. The 41-nm-thick perovskite film with a smooth surface and strong PL intensity was proven to be a suitable luminescent layer for perovskite light-emitting diodes (PeLEDs). Electrical tests indicate that the double hole-transport layers (HTLs) played an important role in improving the electrical-to-optical conversion efficiency of PeLEDs due to their cascade-like level alignment. The PeLED based on poly[(9,9-dioctylfluorenyl-2,7-diyl)-co-(4,40-(N-(p-butylphenyl))-diphenylamine)] (TFB)/poly(9-vinylcarbazole) (PVK) double HTLs produced a high external quantum efficiency (EQE) of 9%, which was improved by approximately 10.9 and 5.14 times when compared with single HTL PVK or the TFB device, respectively. The enhancement of the hole transmission capacity by TFB/PVK double HTLs was confirmed by the hole-only device and was responsible for the dramatic EQE improvement.Keywords:perovskite light-emitting diode;FAPb0.7Sn0.3Br3film;double hole transport structure;light-emitting layer thickness
研究领域:
材料科学
·
光电设备
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DOI
PubMed
高影响因子
OPTICS EXPRESS
·
2022
·Vol. 30
·期 25
·45376-45392
·
IF 3.833
Longshi Rao,Longshi Rao,Bin Sun,Bin Sun,Qing Zhang,Qing Zhang,Mingfu Wen,Mingfu Wen,Jiayang Zhang,Jiayang Zhang,Guisheng Zhong,Guisheng Zhong,Guisheng Zhong,Ting Fu,Xiaodong Niu,Xiaodong Niu,Yong Tang
Benefit from their near-unity photoluminescence quantum yield (PL QY), narrow emission band, and widely tunable bandgap, metal halide perovskites have shown promising in light-emitting applications. Despite such promise, how to facile, environmentally-friendly, and large-scale prepare solid metal halide perovskite with high emission and stability remains a challenging. Herein, we demonstrate a convenient and environmentally-friendly method for the mass synthesis of solid CsPbBr3/Cs4PbBr6 composites using high-power ultrasonication. Adjusting key experimental parameters, bright emitting CsPbBr3/Cs4PbBr6 solids with a maximum PL QY of 71% were obtained within 30 min. XRD, SEM, TEM, Abs/PL, XPS, and lifetime characterizations provide solid evidence for forming CsPbBr3/Cs4PbBr6 composites. Taking advantage of these composites, the photostability, thermostability, and polar solvent stability of CsPbBr3/Cs4PbBr6 are much improved compared to CsPbBr3. We further demonstrated CsPbBr3/Cs4PbBr6 use in flexible/stretchable film and high-power WLEDs. After being subjected to bending, folding, and twisting, the film retains its bright emission and exhibits good resistance to mechanical deformation. Additionally, our WLEDs display a superior, durable high-power-driving capability, operating currents up to 300 mA and maintaining high luminous intensity for 50 hours. Such highly emissive and stable metal halide perovskites make them promising for solid-state lighting, lasing, and flexible/stretchable display device applications.
研究领域:
材料科学
·
光学工程
·
化学工程
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DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Xianwen Li,Wensi Cai,Hongling Guan,Shuangyi Zhao,Siliang Cao,Chen Chen,Min Liu,Zhigang Zang
Owing to their superior optical and electronic properties, all inorganic metal halide CsPbX 3 (X = Cl, Br, and I) perovskite quantum dots (QDs) are regarded as excellent candidates for various optoelectronic applications. However, the instability of such materials greatly hampers their practical applications. In this work, silica-coated didodecyldimethylammonium bromide (DDAB) capped CsPbBr 3 QDs are prepared via a facile method at room temperature. The as-prepared DDAB-CsPbBr 3 /SiO 2 QDs composites demonstrate an effectively improved photoluminescence quantum yield (PLQY) and stability against ethanol and heat. Moreover, the green DDAB-CsPbBr 3 /SiO 2 QDs composites and red InAgZnS QDs are applied as color-converting layers on a blue LED chip for warm white light-emitting diodes (WLEDs). Such WLEDs exhibit an excellent luminescent performance with a color rendering index (CRI) of 88, a color coordinate of (0.41, 0.38), a correlated color temperature (CCT) of 3209 K, and a high power efficiency of 63.4 lm W −1 . Besides, such WLEDs are used for visible light communication (VLC), exhibiting a typical low-pass frequency response, with a corresponding −3 dB bandwidth of about 1.5 MHz. By applying orthogonal frequency division multiplexing (OFDM) with a bit loading, a maximum achievable rate of the VLC system reaches 5.9 Mbps, which is almost four times of their measured −3 dB bandwidth. These results demonstrate the potential of prepared DDAB-CsPbBr 3 /SiO 2 QDs composites not only in high-performance WLEDs, but also as an excitation light source to achieve VLC.
研究领域:
材料科学
·
光电技术
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DOI
高影响因子
TRANSACTIONS OF TIANJIN UNIVERSITY
·
2020
·Vol. 26
·期 6
·470-478
·
IF 0
Xu Rongjie,Xu Hua,Ning Shangbo,Zhang Qiqi,Yang Zhongshan,Ye Jinhua
Visible light photocatalytic CO 2 conversion is a promising solution to global warming and energy shortage. Herein, we build a well-designed bridge-like nanostructure, that is, the phosphonated Ru complex (RuP) light absorber–TiO 2 bridge–Cu catalyst. In this nanostructure, brookite TiO 2 serving as a bridge is spatially connected to the RuP and Cu on each of its sides and could thus physically separate the photoexcited holes and electrons over the RuP and Cu, respectively. Given its effective charge separation, this RuP–TiO 2 –Cu assembly exhibits superior CO 2 photoreduction activity relative to RuP–SiO 2 –Cu under visible light irradiation ( λ > 420 nm). The catalytic activity is further optimized by adopting brookite TiO 2 with various electronic band structures. Results reveal the rapid movement of electrons from the RuP through the conduction band of TiO 2 and finally to the Cu surface. This property is crucial in CO 2 photoreduction activity.
研究领域:
化学
·
环境科学
·
材料科学
✓ 已验证
DOI
SOLID STATE SCIENCES
·
2025
·
IF 3.3
Yanlin Wang,Hao Liu,Haoyu Liu,Hong Yuan
A series of nanosized ZSM-5 (SNZSM-5) zeolites has been synthesized by the seed-assisted method using silicalite-1 as seeds. Catalytic cracking of oleic acid to produce light olefins and light aromatics using SNZSM-5 as the catalyst was performed using a laboratory-scale fixed-bed reactor. The effects of the crystallization time and Si/Al molar ratio on the morphology and multilamellar structure of SNZSM-5 were studied to reveal how these properties affect the catalytic performance. Scanning electron microscopy, transmission electron microscopy, X-ray diffraction, temperature-programmed desorption of ammonia, and N 2 physisorption and desorption were performed to characterize the morphological features, acidities, and pore structures of the SNZSM-5 nanozeolites. Compared with conventional ZSM-5 zeolite, the SNZSM-5 nanozeolites possessed smaller particle diameters (90–450 nm), and they thus contained more intercrystalline voids. The Brunauer–Emmett–Teller surface areas (211–309 m 2 g −1 ) and mesopore volumes (0.08–0.27 cm 3 g −1 ) were both higher than those of ZSM-5 zeolite. Moreover, owing to the larger specific surface areas of the nanocrystals, more acidic sites can be exposed. Therefore, the SNZSM-5 nanozeolites showed higher catalytic activity and stability than conventional ZSM-5. The catalytic activity could be sustained for up to 35 h. Under the conditions of a reaction temperature of 500 °C, an oleic acid flow rate of 0.04 mL min −1 , and a nitrogen flow rate of 30 mL min −1 , the SNZSM-5 nanozeolite prepared with a Si/Al molar ratio of 16 showed the highest catalytic activity, producing up to 67 % yield of light olefins and showing 14.5 % selectivity for light aromatics.
研究领域:
化学工程
·
催化材料科学
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DOI
高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
·
2017
·
IF 4.421
Xiaoyan Hao,Man Li,Li Zhang,Kuokuo Wang,Chunguang Liu
A high efficient photocatalyst (TiO 2 /WO 3 /GO) was developed with tungsten trioxide doping and graphene oxide hybridization. XRD and SEM indicate the formation of crystalline anatase/rutile TiO 2 and hexagonal and cubic WO 3 . UV–vis spectroscopy shows the excellent visible-light-responsive performance. The photocatalyst exhibits excellent photocatalytic performance for bisphenol A degradation under visible light and sunlight irradiations. Transformation by-products were identified and main degradation pathways were proposed. The photocatalytic mechanism is also proposed on the basis of the fact that charge separation is facilitated owing to photo-generated electrons transfer from TiO 2 to WO 3 to GO and photogenerated holes transfer from WO 3 to TiO 2 .
研究领域:
环境科学
·
材料科学
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DOI
高影响因子
OPTICAL MATERIALS
·
2014
·
IF 2.075
Quntao Tang,Honglie Shen,Jing Jiao,Weilong Chen
ZnO:Er, Li light conversion film has been successfully fabricated by sol–gel method. XRD measurement demonstrated the successful incorporation of Er 3+ and Li + into ZnO films. The as-grown film co-doped with 2% Er 3+ and 3% Li + is featured with a transmittance of about 86.8% in the range of 400–900 nm. Moreover, the film exhibits a visible light emission either being excited by 355 nm or 980 nm. Due to its relatively high transmittance characteristics and promising properties of converting both UV and NIR light to visible light, the developed film is considered to have a potential application in novel light conversion devices including solar cells.
研究领域:
材料科学
·
光学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）