POLYMER
·
2025
·
IF 4.5
Yong-Gang Zhao,Yu-Fei Sun,He-Gang Gao,Li-Hui Chen,Wei-Si Su,Chao Lei,Ming-Li Ye,Yin Lu
Carbon skeleton nano microspheres are regarded as a prospective adsorbent material for the removal of pollutants in water, largely due to their exceptional characteristics. In this study, different carbon skeleton microspheres were prepared using the acetonitrile precipitation method. The particle size of the microspheres was adjusted to between 80 and 100 nm by controlling the dosage of modified monomers during the reaction process and the acidity and alkalinity of the solution. The resulting material was a carboxylated nano carbon skeleton microsphere (NCS). Subsequently, the grafting of octadecylamine (C18) onto the NSC material resulted in the formation of nano carbon skeleton materials with superhydrophobic properties. The adsorption performance of the composite C18-NCS on toluene was investigated, and the effect of C18 dosage on the adsorption performance of C18-NCS was further examined. The findings revealed that the maximum adsorption of toluene by C18-NCS was 509.43 mg/g, and the adsorption process exhibited conformity to the Langmuir model and pseudo-second order kinetics. Furthermore, the adsorption behavior of the composites towards other benzenes (benzene, paraxylene) was also investigated. The thermodynamic studies demonstrated that the adsorption of benzenes on the composites was a spontaneous, heat-absorbing process. Ultimately, following three cycles, the composite exhibited a retention of over 80 % of its initial adsorption performance. In conclusion, the superhydrophobicity and thermal stabilization of C18-NCS render it an excellent and environmentally friendly adsorbent material for the efficient and rapid removal of benzene .
研究领域:
环境科学
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材料科学
·
化学工程
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产品关联
DOI
高影响因子
PhotoniX
·
2025
·Vol. 6
·期 1
·1-16
·
IF 19.1
Zhu Qian,Chen Yinggang,Wang Tong,Lu Hua,Wu Limin,Gu Min,Zhang Yinan
Passive daytime radiative cooling (PDRC) is a recently developed zero-carbon cooling technology that harnesses the coldness of the universe as an inexhaustible and environmentally sustainable energy source, holding immense promise for revolutionizing the global energy landscape. Photonic structures with tailored optical responses across solar and thermal wavelengths play pivotal roles in daytime radiative cooling. However, the design of spectrally selective structures with simultaneously high performance, scalable manufacturability and reduced material usage toward real-world deployment remains a significant challenge. Here we report scalable, ultrathin and high-performance selective radiative cooling photonic films by microsphere-polymer coupled metasurface (M-PCM), which consists of subwavelength-thick (~ 8 µm) polymeric elastomer embedded with a monolayer hexagonally close-packed microsphere array on the top and an optically thick reflector underneath via an inexpensive and scalable-manufactured strategy. By controlling the light coupling between the glass sphere and polymers, Mie resonances are spectrally selective excited or suppressed leading to a strong infrared emissivity of 0.96 within 8–13 µm and a large spectral selectivity of 1.50, with simultaneously a high solar reflectance of 0.96, surpassing the state-of-the-art selective PDRC designs. More critically, the M-PCM film yields a maximum temperature drop of 7.1 °C in a represented rooftop test. Promisingly, the mass-produced yet economically viable ultrathin flexible M-PCM films are portable to be integrated into diverse realistic scenarios, such as building exteriors, automobile bodies and water tanks, which could potentially contribute to the global energy conservation and carbon emission reduction.
研究领域:
光学工程
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材料科学
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纳米光子学
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能源材料
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环境可持续技术
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产品关联
DOI
高影响因子
Biotechnology Journal
·
2025
·Vol. 20
·期 8
·e70093
·
IF 3.1
Bang Lou,Hongzhou Liu,Weiyong Hong,Qingliang Yang,Hanbing Li,Gensheng Yang
The biomolecular motor F O F 1 -ATPase-embedded chromatophore, a biomolecular motor loaded into a lipid bilayer of chromatophores derived from biocells demonstrates significant potential for applications in various biomedical fields, such as targeted drug delivery within tumor microenvironments, biological tissue penetration, and biosensor detection. However, conventional purification strategies relying on gradient/ultracentrifugation remain hampered by prohibitive costs, technical complexity, and scalability constraints, critically limiting their biomedical translation. Here, we present a paradigm-shifting approach utilizing titanium dioxide (TiO 2 ) microspheres for efficient chromatophore isolation via Lewis acid-base interactions. Through constructing chromatophore-TiO 2 complexes, we systematically investigated adsorption mechanisms using isotherm modeling and FTIR spectroscopy, revealing that 7.11%–8.84% of interfacial interactions originated from physisorption. This novel strategy achieved 93.3% ± 3.21% separation efficiency and 90.7% ± 5.77% recovery rates—surpassing conventional centrifugation by 2.1-fold in operational efficiency while maintaining chromatophore integrity. Crucially, the preserved bio functionality of FoF 1 -ATPase post-separation was validated through sustained proton gradient-driven ATP (adenosine triphosphate) synthesis. Our findings establish TiO 2 -based adsorption as a robust alternative for biomotor purification and elucidate fundamental principles governing nanobiointerfaces between inorganic matrices and membrane-embedded molecular machines. This work provides a universal platform adaptable for diverse biofilm-encapsulated agents, bridging critical gaps between laboratory-scale development and clinical-scale production of advanced bionanodevices.
研究领域:
生物医学工程
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纳米生物技术
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生物分离
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分子生物学
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生物材料
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分析化学
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产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2015
·
IF 2.752
Xue Jiao Liu,Hai Qiang Li,Xin Yu Lin,Heng Yi Liu,Guang Hui Gao
Microspheres could be utilized in the industrial waste water treatment due to their huge specific surface areas and surficial functional groups, which possibly adsorb heavy metal ions in the industrial waste. Melamine-formaldehyde (MF) microspheres were easily prepared as mono-dispersed micro-sized particles with a smooth surface. However, these rich amine groups in MF microspheres were frequently ignored for heavy metal ions adsorption owing to coordination effects. In this paper, a rough and bumpy siloxane-modified melamine-formaldehyde (Si–MF) microsphere was prepared using a dispersion polymerization method. Based on the experimental measurement, it is found that the particle size, surface morphology and dispersion state of Si–MF microspheres were significantly influenced by dispersing agent dosages, reaction temperature and pH. And Si–MF microspheres can be degraded in low pH. Moreover, the adsorption of the metal ions (Cu 2+ , Pb 2+ and Ni 2+ ) by Si–MF microspheres was also measured by an Inductive Coupled Plasma (ICP) instrument. The result indicated that the Si–MF microsphere showed a high adsorption capability for metal ions, especially Pb 2+ as a potential metal ion trapping agent.
研究领域:
环境科学
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材料化学
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水处理技术
·
高分子化学
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Hailong Hu,Jinye Zhou,Hongyin Hu,Yu Wu,Jinyan Wang,Mingliang Du,Shuanglong Lu
Low-concentration nitrate (NO 3 − ) contamination has become a critical global challenge in water management, posing risks to both ecosystems and human health. Electrocatalytic NO 3 − reduction reaction (NO 3 RR) offers a sustainable and technologically viable strategy for the removal of NO 3 − at low concentrations. However, the practical application is severely hampered by mass-transport limitations and competing hydrogen evolution. Herein, we introduce a physical interfacial engineering strategy by coating commercial Cu foam with a covalent organic framework (COF) microsphere layer to enrich NO 3 − at the electrode-electrolyte interface and thereby enhance the catalytic performance of NO 3 RR at low concentrations. Notably, hollow COF microspheres with enclosed cavities create a confined microenvironment that promotes local nitrate accumulation without altering the intrinsic electronic properties of the Cu substrate. This interfacial architecture imparts a pronounced substrate-enrichment effect, sustaining sufficient local nitrate concentrations in dilute electrolytes. As a result, the adsorption and conversion of NO 3 − are significantly enhanced, and the current plateau due to diffusion limit is effectively mitigated. The optimized composite electrode delivers a maximum Faradaic efficiency of 84.6% and a nitrate removal rate of 63.3% h −1 at 5 mM NO 3 − , substantially surpassing bare Cu foam and setting a benchmark for low-concentration NO 3 RR. Operando Raman spectroscopy and finite element simulations corroborate the enhanced interfacial nitrate enrichment and reaction pathway. This work establishes structural enrichment as a general paradigm for overcoming diffusion-limited conditions in dilute-substrate electrocatalysis.
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产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2023
·Vol. 58
·期 33
·13373-13386
·
IF 4.5
Shi Chonghua,Liu Xinyu,Fu Hang,Wang Jing,Yao Shaowei
As one of the most promising high-capacity anode materials for lithium-ion batteries, Sn-based anode materials have the advantages of high capacity (994 mAh g −1 ) and low price. But the anode material has large volume expansion during the cycle process, resulting in battery capacity attenuation. Therefore, carbon wrapping is used to alleviate this problem. In this work, SnO 2 nanoparticles are coated by electrospinning technology, and microspherical Sn@C composite materials are obtained after further heat treatment. The results show that when the content of SnO 2 nanoparticles is 0.13 g, the obtained Sn@C microsphere electrode material still has a high reversible discharge specific capacity of 616.90 mAh g −1 after 100 cycles at a current density of 100 mA g −1 . When the current density is 500 mA g −1 , the specific capacity is still as high as 558.20 mAh g −1 after 500 cycles, and the Sn@C microsphere electrode material exhibits excellent electrochemical performance. This provides an idea for developing high performance anode materials for lithium-ion batteries.
研究领域:
材料科学
·
电化学
·
纳米技术
·
能源存储
·
功能材料
✓ 已验证
DOI
高影响因子
ANALYTICAL CHEMISTRY
·
2026
·
IF 7.3
Qiong Wang,Feifei Yang,Xinru Chen,Yan Lu,Siqi Zhou,Yaxian Wang,Yuxin Yang,Tingting Wang,Hui Liu,Hui Song,Mengke Su,Honglin Liu
Spatially resolved quantification of agrochemical deposition, penetration, and absorption on and within fresh produce is critical for optimizing efficacy and managing residual risks. This study presents a hydrogel microneedle (MN)-based sensing platform that integrates surface-enhanced Raman scattering (SERS) with silver nanowire (AgNW) arrays. The platform overcomes the inherent limitation of conventional self-assembly methods, which rely on unstable biphasic interfaces, by elucidating a curing mechanism for liquid–liquid interface self-assembled nanostructures. This process enables a controllable transformation of dynamic interfacial assemblies into stable, solid plasmonic microspheres (PMSs). These PMSs function as high-performance SERS units, exhibiting uniform dispersion, long-term stability, and a reproducible electromagnetic hotspot distribution, thereby addressing the signal irreproducibility associated with random nanoparticle encapsulation in MNs. Subsequent integration of the PMSs into a polyethylene glycol diacrylate (PEGDA) hydrogel yields mechanically robust MN arrays with tunable swelling properties. This design confers an integrated pierce–extract–detect functionality, enabling rapid agrochemical screening. For the common pesticide molecules thiram and thiabendazole (TBZ), in the theoretical system, the limits of detection (LODs) are 3.47 × 10–10 M and 8.81 × 10–8 M, respectively. When coupled with SERS mapping technology, the platform facilitates two-dimensional and three-dimensional visualization of pesticide distribution on and within fresh produce, revealing spatial patterns governed by multifactor synergy. This work underscores the significant potential of the developed SERS platform in agrochemical residue detection and distribution analysis, opening new avenues for applications in food safety monitoring and sustainable agrochemical development.
✓ 已验证
DOI
PubMed
高影响因子
ENVIRONMENTAL RESEARCH
·
2023
·
IF 8.3
Lucheng Li,Jie Ni,Zehua Zhu,Xiaojun Zuo
A novel Mg-loaded chitosan carbonized microsphere (MCCM) was prepared for simultaneous adsorption of ammonium and phosphate in this study, through the investigation of preparation procedures, addition ratio, and preparation temperature. Pollutants removals by MCCM were more acceptable with 64.71% for ammonium and 99.26% for phosphorus, compared with chitosan carbonized microspheres (CCM), Mg-loaded chitosan hydrogel beads (MCH) and MgCl 2 ·6H 2 O. Addition ratio of 0.6:1 (m chitosan : m MgCl2 ) and preparation temperature of 400 °C in MCCM preparation were responsible for pollutant removal and yield. The effect analysis of MCCM dosage, solution pH, pollutant concentration , adsorption mode and coexisting ions on the removal for both ammonium and phosphate indicated that pollutants removals were increased with increasing MCCM dosages, and achieved the peak at pH 8.5, but presented to be stable with Na + , K + , Ca 2+ , Cl − , NO 3 − , CO 3 2− and SO 4 2− , except for Fe 3+ .Adsorption mechanisms discussion implied that simultaneous ammonium and phosphate removal with MCCM was attributed to struvite precipitation, ion exchange, hydrogen bonding, electrostatic attraction and Mg–P complexation, suggesting that MCCM presents a new way for simultaneous concentrated ammonium and phosphate removal in wastewater treatment .
研究领域:
环境科学
·
水处理
·
材料科学
·
化学工程
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DOI
高影响因子
Catalysis Science & Technology
·
2021
·Vol. 11
·期 24
·7914-7921
·
IF 6.119
Qiuzhong Li,Lin Huang,Wenxin Dai,Zizhong Zhang
The 1T/2H heterophase junction MoS2 2D nanolayer for assembly into microspheres were fabricated through a simple one-step hydrothermal synthesis. These unique junction structure MoS2 microspheres facilitate the separation of the electron–hole between different phases for forming the built-in electric field in the nanolayer. The content of 1T/2H heterophase junctions could be effectively regulated by simple changing the molar ratio of the Mo/S source in the synthesis processes. The prepared MoS2 microspheres as a photocatalyst enable the effective hydrogen production from water. The hydrogen production activity of the photocatalyst is dependent on the content of the heterophase junctions. The hydrogen production rate was the highest up to 22.4 μmol h−1 on the optimal sample MS (1 : 2).
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2017
·
IF 3.387
Xue Yang,Jianjun Ma,Jing Ling,Na Li,Di Wang,Fan Yue,Shimei Xu
The cellulose acetate (CA)/SiO 2 -TiO 2 hybrid microsphere composite aerogel films were successfully fabricated via water vapor-induced phase inversion of CA solution and simultaneous hydrolysis/condensation of 3-aminopropyltrimethoxysilane (APTMS) and tetrabutyl titanate (TBT) at room temperature. Micro-nano hierarchical structure was constructed on the surface of the film. The film could separate nano-sized surfactant-stabilized water-in-oil emulsions only under gravity. The flux of the film for the emulsion separation was up to 667 L m −2 h −1 , while the separation efficiency was up to 99.99 wt%. Meanwhile, the film exhibited excellent stability during multiple cycles. Moreover, the film performed excellent photo-degradation performance under UV light due to the photocatalytic ability of TiO 2 . Facile preparation, good separation and potential biodegradation maked the CA/SiO 2 -TiO 2 hybrid microsphere composite aerogel films a candidate in oil/water separation application.
研究领域:
材料科学
·
环境工程
·
膜分离技术
·
纳米材料
·
高分子化学
·
光催化
✓ 已验证
DOI
高影响因子
NANO
·
2016
·
IF 0.951
Guoliang Fan,Liu Zhao,Cairong Gong,Jia Ma,Gang Xue
Copper catalysts prepared using two kinds of supports (BaTiO 3 and Fe 2 O 3 @BaTiO 3 ) have been tested for soot combustion. Perovskite-type oxide BaTiO 3 shows excellent properties as support but has small specific surface area. Fe 2 O 3 @BaTiO 3 core/shell microspheres, as improved support of BaTiO 3 support, were fabricated by a hydrothermal-annealing approach. Fe 2 O 3 @BaTiO 3 support has large specific surface area, which optimizes the contact condition of the gas-soot-catalyst three-phase reaction. Due to the Cu-Fe 2 O 3 @BaTiO 3 interaction, the redox properties of copper are improved. Soot combustion is tested under O 2 gas flow and NO x /O 2 gas flow, and Fe 2 O 3 @BaTiO 3 supported copper catalyst (Cu/Fe 2 O 3 @BaTiO 3 ) all shows higher catalytic activity and CO 2 selectivity than BaTiO 3 supported copper catalyst (Cu/BaTiO 3 ) .
研究领域:
催化化学
·
环境科学
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2020
·
IF 4.939
Luna Tie,Yanmei Liu,Shujie Shen,Chongfei Yu,Cuijiao Mao,Jingyu Sun,Jianhui Sun
Exploring high-efficiency photocatalysts for hydrogen generation from water splitting has recently spurred enormous scientific interest. Herein, the formation of Pt/GO-ZnS photocatalysts via a step-wise strategy and the mechanism of improved hydrogen production efficiency are systematically studied. Thus-prepared optimal Pt/GO-ZnS composite (with the ratio of Pt and GO are 1 and 2 wt%, respectively) exhibits excellent photocatalytic hydrogen production performance of 1082 μmol h −1 g −1 under simulated sunlight irradiation, which stays 2.8 and 2.6 times higher than that of ZnS/GO (2 wt%) and ZnS/Pt (1 wt%), respectively. Exhaustive experimental studies reveal that the outstanding activity of Pt/GO-ZnS is attributed to the efficient interfacial charge transfer and enhanced visible light harvesting caused by the synergetic effects of GO and Pt. In further contexts, the photocatalytic mechanism is explored: Photo-generated electrons in the conduction band of ZnS can be immediately trapped through GO and rapidly transferred onto Pt nanoparticles thanks to the tight interface. This study represents an effective and facile strategy to rationally design advanced photocatalytic system in solar energy conversion .
研究领域:
材料科学
·
能源化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）