APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Jing Zhang,Qinfu Liu,Mingyi Huang
Halloysite is a natural aluminum-rich nano-sized clay mineral, which can offer the aluminum source to synthesize aluminum nitride (AlN) in a low-cost and environmentally friendly manner. The micron-sized AlN with different morphology and structure, including self-assembled pine-like aggregates, hollow bayberry-like spheres, and high aspect ratio whiskers, were successfully synthesized at 700 °C under nitrogen atmosphere using natural hydrated halloysite (10 Å HNT). These three kinds of varying morphological AlN formed by different mechanism. The self-assembled-AIN pine-like aggregates formed by in-situ nitrogen substitution within the Al-O octahedra of 10 Å HNT thermal fragmentation through self-assembly. The formation of the bayberry-like hollow spheres is governed by a gas–liquid reaction pathway, whereas the development of whiskers with a high length-to-diameter ratio is driven by a gas–liquid-solid mechanism. The morphological comparison of AlN synthesized from 10 Å HNT with 7 Å HNT further confirms the validity of the in-situ substitution mechanism we previously proposed, as well as reflecting the critical influence of halloysite hydration state on structural evolution of AlN. This study offers a new insight into tailoring AlN nanostructures using clay mineral templates, with promising applications in thermally conductive composites and electronic packaging materials.
研究领域:
材料科学
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无机非金属材料
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纳米结构材料
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陶瓷材料
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复合材料
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DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2026
·
IF 7.3
Shiyu Huang,Yinze Yang,Yan Du,Pengxiao Wei,Yafei Zhao,Huishan Shang,Dan Wang,Dongyang Li,Bing Zhang
A bifunctional Cu/CeO2/halloysite catalyst was rationally constructed via strong electrostatic adsorption to enable switchable conversion of furfural into either furfuryl alcohol or isopropyl furfuryl ether. Highly dispersed Cu nanoparticles are anchored on CeO2 nanoislands supported by acid-etched halloysite nanotubes, creating a unique “support–adjuvant–active site” synergy. This architecture facilitates H2 activation and tandem hydrogenation–etherification, allowing precise temperature-controlled pathway selection. Under mild conditions, furfural hydrogenation to furfuryl alcohol proceeds via a low-energy barrier (0.9 eV) with a stable intermediate, whereas etherification requires overcoming a significant barrier (1.6 eV), becoming favorable only at elevated temperatures. In situ FTIR, kinetic studies, and DFT calculations reveal the mechanistic origin of this selectivity. The catalyst displays high activity, tunable selectivity, and robust recyclability, providing a versatile strategy for controlling reaction pathways in the valorization of biomass-derived platform molecules.
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产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2022
·
IF 5.518
Yuhui Zhang,Rui Meng,Jing Zhou,Xiucai Liu,Weihong Guo
As a versatile and scalable technology, electrospinning is capable of fabricating polymer composite nanofibers , which have a wide range of applications in bioengineering , filtration, textiles, and other fields. In this study, dopamine was used to modify the surface of halloysite nanotubes (HNT), and the polydopamine (PDA) layer was used to promote the grafting of silane coupling agent on the surface of HNT. The surface of HNT was successfully modified by PDA coating and grafted with the silane coupling agent. Modified HNT (PDA@HNT-V) reinforced polyamide 56 (PA56) nanofibers were successfully synthesized through facile electrospinning method. Compared with the unmodified PA56 nanofibers, the tensile strength of the PA56/PDA@HNT-V composite fibers is increased by 67%, and the thermal stability is improved. Surface functional modification of PDA@HNT-V effectively improves the dispersion and compatibility with the PA56 matrix. Surface-modified HNT have a positive effect on the morphology and mechanical properties of electrospun PA56 nanofibers. Biological characterization confirmed the biocompatibility and low toxicity of PA56/PDA@HNT-V nanofiber scaffolds. In summary, the results obtained from this study demonstrated the potential of PA56/PDA@HNT-V nanofiber scaffolds for bone tissue engineering applications.
研究领域:
生物医学工程
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材料科学
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组织工程
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DOI
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
·
2021
·
IF 4.094
Xing Zhang,Zhepeng Zhang,Zhixiang Zeng,Shuangming Du,Eryong Liu
In order to obtain separation membrane materials with high permeation flux and excellent oil/water emulsion separation performance, various strategies for inserting nano-second phases have been proposed to expand the membrane spacing and thereby improve water permeability. In this work, a series of nanocomposite membranes graphene oxide/halloysite nanotubes (GO/HNTs) composed of HNTs and GO nanosheets were successfully prepared by vacuum filtration of HNTs/GO suspensions prepared by a modified Hummers' method. The HNTs intercalate and grow around the GO nanosheets to increase the interlayer spacing of the composite membrane , which is beneficial to increase the permeation flux. In addition, thanks to the doping of hydrophilic HNTs and the uneven surface morphology due to the increase in surface roughness, the membrane permeation flux is improved. The GO/HNTs composite membrane was used for oil-water separation experiments with an endless separation device. The GO/HNTs composite membrane with underwater super-oleophobicity has a water flux of 1470 L m −2 h −1 when the GO/HNTs content ratio is 1/3, which is 3 times that of pure GO membranes, while maintaining a high rejection of over 99.5%. The composite membrane maintains high water flux and high rejection rate under different pH conditions , and has acid and alkali resistance. After 10 times of repeated use, the high water flux was maintained as expected, indicating that the composite membrane is reusable.
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DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2026
·
IF 7.6
Luqi Guo,Yinze Yang,Wenya Wei,Zongrui Zhang,Guangyao Fan,Huishan Shang,Yafei Zhao,Dongyang Li,Bing Zhang
Solar interfacial seawater evaporation is an efficient and convenient way to tackle the freshwater crisis. Despite the fact that many organic-based aerogel evaporators have achieved high solar-vapor efficiency and high evaporation rates, they are usually difficult to adapt to freshwater extraction in complex environments due to the low strength and inability to resist corrosion of organic components. Fabricating high-strength and corrosion-resistant aerogel evaporators from low-cost inorganic materials is more meaningful but still challenging. To this end, a high-strength, pure, and bilayered inorganic aerogel evaporator (CuS@HNT/HBK) was rationally designed and created, in which CuS nanoparticles were grown on the HNT surface (CuS@HNT) as the upper photothermal absorber, while boric acid and γ-glycidyl etheroxypropyltrimethoxysilane (KH560) were used as high-temperature adhesives to bind HNT (raw-HBK) as a high-strength substrate after sintering (HBK). CuS@HNT/HBK demonstrates remarkable seawater evaporation performance with high evaporation rates of 1.52/4.73 kg m–2 h–1 under one/three solar irradiation, outperforming most of the organic–inorganic and pure inorganic aerogel evaporators previously reported. Molecular simulations reveal that the removal of hydroxyl groups on the HBK surface reduces the binding of water molecules, thereby significantly promoting the evaporation of the CuS@HNT/HBK. Impressively, CuS@HNT/HBK possesses extraordinarily high compressive strength of 4.8 MPa and compressive modulus of 31.7 MPa, and it is very stable in acidic/alkaline solutions and dyes wastewater, guaranteeing its long-term stability, flexibility, and adaptability in various extreme conditions. This work puts forward a feasible idea to develop efficient, high-strength, and corrosion-resistant pure inorganic aerogel evaporators for potential application in complex water environments.
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DOI
高影响因子
APPLIED CLAY SCIENCE
·
2024
·
IF 5.3
Kairui Tian,Xiangyu Chen,Xinyuan Zhou,Yuqian Xu,Mingxian Liu
Tea, as one of the three major beverages in the world, has antioxidant, anti-cancer, inhibitory inflammation, immune regulation, diabetes prevention, antibacterial and other effects. In this study, black tea and FeCl 3 ·6H 2 O were chelated to functionally modify the outer surface of halloysite clay nanotube (Hal). A new nanomaterial with excellent photothermal properties, tea nanoparticles@Hal, was successfully synthesized. Tea nanoparticles@Hal powder can raise to 225.8 °C in 25 s, and the corresponding solution can raise to 50.5 °C in 8 min with a photothermal efficiency of 77.3 %. The tea nanoparticles@Hal was assembled on the polyurethane (PU) sponges by simply soaking to prepare conductive sensor. The flexible sensor shows a fast response time (132.8 ms) and a long service time (400 cycles), which have wide range of applications. The resistance changes with the pressure is in a regular functional relationship, and the sensor can measure the weight of objects with high accuracy. In addition, the sensor can stably monitor various physiological activities of the human body. When finger is bent, the sensor can produce the difference output signals. The prepared tea nanoparticles@Hal/PU sensor has broad prospects in fields such as human-computer interaction and medical detection.
研究领域:
材料科学
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生物医学工程
·
纳米技术
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Yukun Liu,Zekun Wang,Yangai Liu,Ke Su,Chenguang Yang,Cian Xie,Mingxing Chen,Ruiyu Mi,Hao Ding,Yuanyuan Zhang,Lefu Mei
Perovskite quantum dots (PQDs) suffer from poor environmental and process compatibility, limiting device translation. We report a chelation-guided, in-situ nanoconfinement strategy that crystallizes CsPbBr 3 inside the lumen of halloysite nanotubes (HNTs), forming a CsPbBr 3 @HNTs composite with inorganic barriers and spatial isolation. The EDTA-2Na assisted route selectively coordinates Pb 2+ on the inner surface, steering nucleation and growth within HNTs channels. The composite shows bright green emission (λ em ≈ 524 nm) with a solid-powder PLQY of 61.66%, retains >95% PL after 60 days in air, and sustains ~40% after 90 min in water, far exceeding unprotected PQDs. It withstands process heat (44.6% PL at 80 °C) and is compatible with i-line UV photolithography, enabling uniform micro-patterns down to 3.45 μm. In situ high-pressure spectroscopy reveals reversible blue-shift and pressure-induced amorphization above ~2.4 GPa with emission recovery upon decompression. When integrated into white-LED backlights, the composite achieves NTSC 126.7% / Rec.2020 94.6% gamut coverage. This chelation-guided, in-situ nanoconfinement strategy thus delivers a stable and lithography-compatible perovskite quantum dot composite, establishing a process-ready platform for applications such as microLED color conversion layers and on-chip photonic circuits.
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Lifang Song,Ye Yang,Huiyun Xia,Ye He,Qianqian Liao
The attachment of fouling organisms in marine environments poses serious challenges to the service life and energy efficiency of underwater structures. Traditional antifouling coatings, plagued by environmental pollution, fall short of green and sustainable development goals. To address this, this study develops an eco-friendly multifunctional antifouling coating based on perhydropolysilazane (PHPS) and hexadecyltrimethoxysilane-modified silica-coated halloysitenanotubes (HDTMS-SiO 2 @HNTs). The coating’s functionality is governed by two synergistic interfacial phenomena: the chemical reduction of surface free energy through the grafting of long-chain alkyl groups, and the physical amplification of roughness via a hierarchical micro/nano-structure derived from the tubular halloysite framework decorated with silica nanoparticles. The coating, prepared via a simple spray-coating process and thermal curing, exhibits a static water contact angle of 158° and sliding angle of ≈6°. This superhydrophobic state is characterized by the formation of a stable air cushion at the solid–liquid interface, effectively minimizing adhesion of marine foulants. At 5 wt% filler loading, the coating demonstrates robust adhesion (Grade 0), high hardness (6H), and excellent barrier properties (EIS). Furthermore, incorporation curcumin-loaded halloysitenanotubes (Cur@HNTs) yields > 99.99% bacterial reduction against both Escherichia coli and Staphylococcus aureus . This work provides a robust, fluorine-free surface engineering strategy for the design of durable marine antifouling coatings.
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DOI
高影响因子
ACS Omega
·
2021
·
IF 3.512
Jiajun Li,Ming Guo,Yan Shao,Hongwei Yu,Kaijie Ni
To improve the efficiency of electrochemical degradation of wastewater, lead dioxide was synthesized by a hydrothermal method with low cost, simple operation, and high conversion rate. β-PbO2/HNT composites were prepared by a hydrothermal method with Halloysite nanotubes (HNTs) and β-PbO2. The PbO2/HNT/ITO electrode was prepared by modifying the β-PbO2/HNT composite on an indium tin oxide (ITO) conductive glass electrode. The morphology of the material was characterized by scanning electron microscopy and transmission electron microscopy. The electrochemical performance of the electrode was measured by cyclic voltammetry, the galvanostatic charge–discharge method, and the AC impedance method. Electrolysis of typical dye wastewater by electrochemical oxidation was carried out. The effect of electrochemical degradation of wastewater with new electrodes was investigated and the degree of electrodes falling off was compared. The solubility of electrodes was investigated by inductively coupled plasma mass spectrometry lead element analysis of wastewater. The results showed that the β-PbO2/HNT electrodes were prepared successfully and had good charge–discharge performance and lifetime. The removal rate of electrolytic dye wastewater was 85.86%, and the degradation effect was better than that of pure PbO2 electrodes. In this work, a new type of β-PbO2/HNT/ITO electrode has been prepared, which improved the degradation efficiency of wastewater and opened up the prospect of HNT application.
研究领域:
环境科学
·
材料科学
·
电化学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2021
·Vol. 104
·期 11
·5529-5536
·
IF 3.784
Li Zeng,Faguo Wang,Sumei Han,Moying Li,Siyang Tu,Qipeng Lu,Wenbin Cao
Oil/water separation is a worldwide concern because of the emissions of oil contaminated wastewater and increasing number of oil spill accidents in recent years. Materials with superhydrophobicity and superoleophilicity provide a new strategy to solve such problems, which allow organic solvents to pass through freely while repelling water. Herein, the porous foams with superhydrophobicity and superoleophilicity were prepared successfully through a facile low-temperature sintering method, in which the halloysite nanotubes (HNTs), polyvinylidene fluoride (PVDF) and sodium chloride were used as the raw materials. Among them, HNTs constructed the rough surface in micro-/nano-scale and sodium chloride served as the sacrifice template. The superhydrophobic surface was achieved via the synergistic effect between the rough surface and PVDF with the low surface energy. The foam showed good water repellency (water contact angle, CA: 156.0 ± 0.1°) and superoleophilic properties, which could selectively absorb organic solvents from the mixture solution with water. Moreover, the foam exhibited high separation efficiencies for a variety of oil/water mixed solutions with excellent cycling stability, which make it a promising material for practical oil/water separation.
研究领域:
材料科学
·
环境科学
·
化学工程
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2018
·
IF 8.097
Mei Yang,Xin Xiong,Rui He,Yunhan Luo,Jieyuan Tang,Jiangli Dong,Huihui Lu,Jianhui Yu,Heyuan Guan,Jun Zhang,Zhe Chen,Mingxian Liu
We propose and demonstrate a novel strategy to modify the plasmonic interface by using a thin layer of halloysite nanotubes (HNTs). The modified surface plasmon resonance (SPR) sensor achieves a greatly improved sensitivity because the large surface area and high refractive index of the HNTs layer significantly increase the probing electric field intensity and hence the measurement sensitivity. More significantly, the thickness of the HNTs layer can be tailored by spraying different concentrations of HNTs ethanol suspension. The proposed sensors show significant superiority in terms of the highest sensitivity (10431 nm/RIU) and the enhancement fold (5.6-folds) over those reported previously. Additionally, the proposed approach is a chemical-free and environment-friendly modification method for the sensor interface, without additional chemical or biological amplification steps (no toxic solvents are used). These unique features make the proposed HNTs-SPR biosensor a simple, biocompatible, and low-cost platform for the trace-level detection of biochemical species in a rapid, sensitive, and nondestructive manner.
研究领域:
材料科学
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纳米技术
·
光学
·
传感器
·
分析化学
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产品关联
DOI
PubMed
高影响因子
APPLIED CLAY SCIENCE
·
2016
·
IF 2.586
Xiaoyu Li,QianYang,Jing Ouyang,Huaming Yang,Shi Chang
Natural halloysite (Hal) nanotubes were well dispersed and thoroughly emulsified to prepare the porous microspheres Hal-chitosan (Hal-CTS) in a water/oil microemulsion, which was further loaded with aspirin (Asp) as a model drug to investigate the drug release behavior. The charge-mediated adsorption of molecules to the surface of Hal could facilitate the dispersion of Hal in aqueous media and enabled Hal to assemble into microspheres. The microspheres had interconnected pores, large pore volume, high specific surface area and hierarchical pore distribution, which was beneficial to the entrance of Asp molecules. The porous microspheres showed excellent loading capacity for Asp as high as 42.4 wt%, around 20 times higher than the pristine Hal (2.1 wt%). The release results indicated that Hal-CTS/Asp nanocomposites had the lower release in the simulated gastric fluid, whereas more rapid release rate and higher release amount in the simulated intestinal fluid, which could help to maintain effective concentration of Asp in the body and reduce the maximum extent of the side effects to the stomach. The as-prepared Hal-CTS/Asp nanocomposites could have potential application in the drug carrier systems due to their natural and excellent biocompatibility.
研究领域:
材料科学
·
药学
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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）