APPLIED CLAY SCIENCE
·
2024
·
IF 5.3
Jing Jiang,Siyu Deng,Wenhao Kuang,Li Wang,Dong Chen,Yuhong Ma,Wantai Yang
Halloysite nanotubes (Hal) have drawn intensive attentions because of their unique nanotubular structure and large surface area. However, limited adsorption capacity and poor recyclability severely impeded their practical application for water remediation. Herein, to overcome the deficiencies of pristine Hal, we deliberately designed and prepared a series of anhydride and carboxylate functionalized Hal (Hal@PDM-COO − ) via self-stabilized precipitation polymerization. Owing to the merits of both nanotubular structure of Hal and high-density carboxylate ions in the shell layer, the Hal@PDM-COO − possessed a remarkable pH-dependent adsorption performance towards methylene blue ( b -MB). As the solution pH increased from 3 to 11, the sorption capacity increased remarkably from 179.1 to 459.1 mg/g. Furthermore, all sorption processes were better-fitted with pseudo-second-order and Langmuir models, exhibiting a maximum sorption amount of 302.1 mg/g at pH = 7. These results indicate that electrostatic attraction between positive b -MB molecules and negative carboxylate groups plays a dominant role during sorption process, and carboxylate groups distribute homogeneously in the shell layer of Hal@PDM-COO − . More importantly, Hal@PDM-COO − possessed outstanding recyclability, and the removal rate of b -MB kept >95% after five recycle runs. Considering the highly enhanced adsorption capacity, rapid adsorption rate and excellent reusability, the Hal@PDM-COO − showed significant potential for wastewater treatment.
研究领域:
环境科学
·
材料科学
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产品关联
DOI
高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
Peijie Xu,Yuhang Yu,Beibei Du,Yongdan Cao,Donghui Sun,Zengchao Ji,Yifei Zhu,Yanyue Jia,Yang Liu,Zhao Cao
Zinc-ion batteries(ZIBs) are promising as the stationary energy storage owing to their inherent high safety, cost-effective, and environmental-friendly. Nevertheless, the notorious dendrite growth and water-induced side reactions on Zn anode significantly downgrade the long-lasting cycling stability and hinder the industrialization of ZIBs. Herein, a flux-homogenized Zn 2+ transport system based on a Janus separator is constructed. This Janus separator features bacterial cellulose (BC) layer on one side and roughened halloysite nanotubes/bacterial cellulose (RHNTs/BC) layer on the other side. The abundant surface hydroxyl groups, zincophilicity sites, and ionic transmission paths of RHNTs make them ideal for acting as an ion pump to accelerate the transportation of ions, contributing to the immensely improvement of the de-solvation process, zinc deposition, and the growth of Zn dendrites. As a result, the Zn/Zn symmetrical cell with Janus separator can achieve a stable cycle life of over 800 h at 4.40 mA cm −2 . More impressively, the full cell based on Janus separator enables excellent cycling stability. This study enriches the structurally controllable construction method of HNTs and provides the fundamental theories for the application of HNTs in the field of new high-efficiency mineral energy storage materials.
研究领域:
材料科学
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能源存储技术
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产品关联
DOI
高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
·
2022
·
IF 5.876
Wenchao Niu,Pingxiao Wu,Lu Jiang,Zhongbo Shang,Quanyun Ye,Jiayan Wu,Yihao Li,Meiqing Chen,Saeed Rehman,Nengwu Zhu
Gobbinsite (GOBZ) is rare zeolite with a disordered framework cation distribution, which is likely beneficial to Cd(II) fixation. This study developed a simple hydrothermal crystallization route to synthesize the novel GOBZ using natural halloysite nanotubes minerals (HNTS). In micropore and mesoporous of BET data analysis, a large number of HNTS microporous structures transformed into GOBZ mesoporous structures, which could greatly facilitate the adsorption ability of GOBZ. The XPS and FTIR exhibited the mesoporous coordination and the interaction of different hydroxyl functional groups, is the main adsorption mechanism to strengthen the Cd(II) fixation capacity. Liu isotherms described well of the adsorption of Cd(II), indicating the process was heterogeneous and multilayers simultaneously. General order kinetics assumed that the adsorption occur accompanied by a chemical reaction on GOBZ. Reusability of GOBZ show that it has good recycling performance and application value in Cd(II) adsorption. The TEM and XRD showed that the adsorption of Cd(II) affected the elemental composition, surface morphology and internal structure of GOBZ, which contributed to in-situ formation of phillipsite-Ca, otavite, garronite and gmelinite-Na. Above all, hydrothermal crystallization (GOBZ technology) can provide viable options for the removal of toxic metal pollution, showing the prospect of clay minerals in the removal.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
APPLIED CLAY SCIENCE
·
2020
·
IF 4.605
Miaomiao Xia,Lihua Chen,Chuantao Zhang,Qi-Meige Hasi,Zhenhua Li,Hailing Li
Solar steam generation assisted by photothermal materials has attracted extensive attention due to its advantages of excellent evaporation rate and high photothermal conversion efficiency. In this work, we report a simple method by employment of halloysite (Hal) nanotubes (HNT) and graphene oxide (GO) as raw materials to produce efficient solar photothermal materials (named as GO-HNT). The as-prepared GO-HNT has rich porosity, excellent 90% light absorption and good thermal insulation performance (thermal conductivity 0.162 W m −1 K −1 ). Based on these characteristics, GO-HNT can be used as a promising solar receiver. Correspondingly, the solar energy conversion efficiency of the GO-HNT solar receiver was measured to be 83.67%, 77.17% and 77.05% respectively under 1 sun, 2 sun and 3 sun irradiations. As a 1D nanocrystalline clay mineral, HNT have great advantages of environmentally friendly, cost-efficient and commercial availability with abundant reserves. In combination with its simple and scalable manufacture method, this GO-HNT-based solar receiver may hold great potentials for a broad range of applications, such as seawater desalination, distillation, sterilization, sewage treatment, etc.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
Surfaces and Interfaces
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2025
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IF 6.3
Song Xu,Yan Gao,Ling Zhao,Huaijie Cao,Junxi Zhang
Solely inorganic silica (SiO 2 ) coating cannot provide long-term corrosion protection on metal due to structural defects. Herein, acidified Halloysite (Hal) was proposed and the Hal tubes were incorporated into SiO 2 sol coating for enhancing corrosion resistance on AZ31B magnesium (Mg) alloy. SiO 2 sol originated from the hydrolysis of water glass (Sodium silicate). With improved interaction between Hal and SiO 2 , the cracks and structural defects in cured SiO 2 coating can be reduced. As a result, the impedance modulus at 0.01 Hz (|Z| 0.01 Hz ) of the acidified Hal/SiO 2 composite coating (AG coating) increased to 10 9 Ω·cm 2 , outperforming 2 orders of magnitude higher than pure SiO 2 coating (pure coating) counterpart. The corrosion current density decreased to 9.33×10 –12 A·cm -2 . Besides, the AG coating offered stable corrosion resistance after immersion tests for 30 days, which was comparable to anti-corrosive polymer coating. The release of amorphous SiO 2 from acidified Hal reduced the internal stress. The H + on Hal induced a decrease of pH and adsorption of residual Na + , thereby improving structural integrity and water resistance of SiO 2 coating. Differing from other fillers (CNTs, graphene, MXene), this work proposed a low-cost Hal tube as filler for designing inorganic coating for corrosion protection on Mg alloy. It also shed insight into understanding the underlying corrosion protection mechanism of inorganic SiO 2 coating on metal.
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产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2017
·Vol. 52
·期 14
·8391-8400
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IF 2.599
Zeng Xiaoping,Wang Qin,Wang Hong,Yang Yajiang
Halloysites are a kind of aluminosilicate clay with a morphology of a nanotube. The inner wall of halloysite is positively charged, and the external surface is negatively charged. In this work, we propose a simple and facile method to prepare Ag NPs loaded in the lumen of halloysite nanotubes (HNTs). Herein, N -acetyl- l -cysteine modified silver nanoparticles (Ag NPs) with negative charges spontaneously and stably resided in the lumen of HNTs via electrostatic interactions. The images of transmission electron microscopy and scanning transmission electron microscopy showed that Ag NPs with a size of ~2.6 nm were uniformly distributed in the lumen of HNTs. The catalytic activity of the obtained Ag NPs/HNTs composites was evaluated by the reduction reaction of 4-nitrophenol (4-NP) as a model reaction. When the molar ratio of Ag and 4-NP was set at 0.008, the rate constant of the reaction was found to be 0.91 min −1 , two times higher than that of Ag NPs adsorbed on the external surface of HNTs. Additionally, no Ag NPs were found in the supernatant after the Ag NPs/HNTs suspension was stirred for 30 min. Such structural stability implies good reusability as a catalyst.
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DOI
高影响因子
TRIBOLOGY INTERNATIONAL
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2024
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IF 6.1
Yuan Qin,Yongfeng Yang,Mingxia Wu,Yi Yang,Gang Yang
To enhance the antiwear properties of halloysite nanotubes (HNTs), composites of C/HNTs, CuO/HNTs, and MoS 2 /HNTs were prepared using hydrothermal method, and their tribological properties were investigated. The results indicated that the wear resistance was ranked as follows during rotational motion: PAO10 oil < CuO/HNTs (9.1%) < MoS 2 /HNTs (34.5%) < HNTs (41.8%) < C/HNTs (56.4%). In reciprocal motion, the antiwear performance was ordered as follows: PAO10 oil < HNTs < MoS 2 /HNTs < CuO/HNTs < C/HNTs. The consistently superior antiwear performance of C/HNTs can be attributed to the synergistic effect of carbon transfer with HNTs, which rapidly generate a homogeneous carbon film embedded in Fe 2 O 3 , Fe 3 O 4 and SiO x . In contrast, MoS 2 and CuO exhibited inhibitory and competitive effects on the film formation of HNTs.
研究领域:
材料科学
·
摩擦学
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产品关联
DOI
高影响因子
APPLIED CLAY SCIENCE
·
2024
·
IF 5.3
Jinmiao Chen,Yuxi Mo,Xiangyan Zhang,Shaohua Zhang,Aihua Cui,Xueqin Wang,Jiwei Li
In this study, chitosan/polyethylene oxide fibrous membranes (CS/PEO) with varying halloysite nanotubes (HNTs) contents were prepared by solution-blow spinning. The HNTs-CS/PEO membranes with a 12 wt% HNTs content exhibited excellent hydrophilicity, air permeability, and flexibility. The in vitro hemostasis time of the 12 % HNTs-CS/PEO was 217 s, and it was observed to form a stable thrombus. Moreover, the antibacterial efficacy of 12 % HNTs-CS/PEO against Escherichia coli and Staphylococcus aureus was 90.05 % and 69.86 %, respectively. Furthermore, the in vitro cytotoxicity study demonstrated the nontoxic nature of the 12 % HNTs-CS/PEO. The solution-blow spinning HNTs-CS/PEO fibrous membrane can potentially prevent the risk of distal thrombosis caused by separating individual HNTs and offer the advantages of a simple preparation and application process. This study presents a novel first-aid hemostatic dressing and offers a novel approach to loading inorganic nanoparticles onto fibers.
研究领域:
材料科学
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生物医学工程
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纳米技术
·
伤口愈合
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产品关联
DOI
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
·
2026
·
IF 7.1
Wen-jing Huang,Wen-hao Dai,Eric Oscar Amonsou,Guo-qin Yao,Yan-yu Liu,Jian-hong Zhang,Wei-ping Jin,Wang-yang Shen,Zhong-ze Hu,Zhan Wang,Meng Zhang,Qing-le Liang
Traditional food packaging materials are characterized by short preservation periods and inadequate mechanical properties. In this study, curcumin-loaded halloysite nanotubes (HNTs) were incorporated into polyvinyl alcohol (PVA), and active nanofiber films were fabricated via electrospinning. The encapsulation efficiency of curcumin-HNT composite at a 1:1 mass ratio was 13.8 ± 0.2%, with a drug loading capacity of 14.5 ± 0.2%. XRD analysis revealed a characteristic halloysite nanotube peak at 24.55°, while FTIR spectra confirmed successful incorporation through weakened bands in the 1510–1282 cm −1 region. HNT incorporation enhanced curcumin thermal stability, increasing its decomposition temperature from 730 °C to 800 °C due to nanotubular confinement and structural interactions. The nanofiber films exhibited improved tensile strength, high moisture absorption (∼181%), and effective moisture-barrier properties. Further, the films demonstrated antioxidant, antibacterial, and pH-responsive colorimetric functions. Application studies on baked goods and fresh fruits showed improved water retention and frost resistance, reducing storage-related quality deterioration.
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Yi Wang,Pei Liu,Zhen Ding,Shuai Yin,Zhiqiang Li,Zhanpeng Liu,Fenghua Liu
To address the problem of narrow bandwidth in conventional electromagnetic wave (EMW) absorbing materials, which severely limits their practical applications. We proposed an integrated strategy that combined microstructural regulation of multi-dimensional composites with macroscopic structural design. A ternary Co/HNTs/GO composite was fabricated, in which one-dimensional halloysite nanotubes (HNTs) acted as a lightweight framework, two-dimensional graphene oxide (GO) established a conductive network, and Co nanoparticles introduced magnetic loss. This multi-dimensional synergistic architecture enhanced interfacial polarization, conductive pathways, and magnetic loss. After calcination optimization, the composite achieved a minimum reflection loss (RL min ) of −57.52 dB with an effective absorption bandwidth (EAB) of 5.02 GHz. Moreover, the absorption frequency was tuned across 4–18 GHz by varying the sample thickness from 2 to 5 mm. In addition, a step-pyramid structure optimized by electromagnetic simulation further expanded the EAB to 12.4 GHz (5.6–18 GHz), fully covering the X and Ku bands. This integrated material-structure strategy provided a promising paradigm for the rational design of broadband and high-performance EMW absorbers.
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Menghao Yang,Beibei Du,Yongdan Cao,Yuan Xue,Peijie Xu,Zhao Cao
Rechargeable aqueous zinc-ion batteries (AZIBs) face critical challenges due to the formation of severe Zn dendrites and parasitic reactions at unstable interfaces. Here, we develop an aminosilanized halloysite nanotube (AHNT)-based coating that employs a distinctive “nanoconfinement-capture” strategy: the tubular framework spatially confines Zn 2+ diffusion, while surface amino groups chemically capture the ions, working synergistically to enable dendrite-free Zn deposition. This approach delivers outstanding stability (2600 h in Zn||Zn cells with a Coulombic efficiency of 99.74 %) and demonstrates practical full-cell performance (253 mA h g −1 at 3C with 71.86 % capacity retention over 1200 cycles). This strategy substantially broadens the functional scope of conventional protective coatings, offering novel design principles for the application of clay minerals in Zn anode engineering and presenting significant implications for the advancement of aqueous zinc battery technology.
研究领域:
材料科学
·
储能
·
电化学
·
纳米材料
·
电池技术
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产品关联
DOI
高影响因子
APPLIED CLAY SCIENCE
·
2020
·
IF 4.605
Hongyuan Zhao,Huina Ma,Xiaoguang Li,Binbin Liu,Runqiang Liu,Sridhar Komarneni
We report a simple and highly efficient preparation of nanocomposite of halloysite (Hal) nanotubes/multi-walled carbon nanotubes (Hal-MWCNTs) and its electrochemical sensor application for the determination of methyl parathion (MP). The phase structure and surface morphology of the Hal-MWCNTs nanocomposite were confirmed by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared (FTIR) spectra. According to the electrochemical tests, the fabricated glassy carbon electrode (GCE) sensor with Hal and multi-walled carbon nanotubes showed excellent MP determination performance because of the synergistic effect of Hal and multi-walled carbon nanotubes . The Hal-MWCNTs/GCE sensor exhibited a relatively low detection limit of 0.034 μM in the linear range of 0.5–11 μM. When used for the determination of MP in real samples, the Hal-MWCNTs/GCE sensor showed good detection effect with satisfactory relative standard deviation (RSD) of 2.46 to 3.08% and recoveries of 98.8 of 101.8%. This work indicated that the nanocomposite of Hal-MWCNTs when coated on GCE is useful for the fabrication of high-performance MP electrochemical sensor.
研究领域:
分析化学
·
环境监测
·
纳米材料科学
·
电化学
·
食品安全
·
毒理学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）