APPLIED CLAY SCIENCE
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2025
·
IF 5.8
Guixiang Wang,Qizi Wu,Maomao Guo,Shilong Zhang,Qiuyan Luo,Hao Yu,Xuyan Guo,Fuqiu Ma,Haining Feng,Ruizhi Wu,Boris Krit
In this study, a novel CoZnAl-LDH coating was synthesized in-situ on anodized aluminum through a hydrothermal method without introducing trivalent metal salts. Subsequently, a vanadate-intercalated LDH-VS coating was fabricated via ion exchange and hexadecyltrimethoxysilane (HDTMS) self-assembly, which integrated long-term corrosion resistance, friction reduction, and superhydrophobicity into a single coating. The morphology and structure of the coatings were investigated using SEM, EDS, XRD, FT-IR, and XPS. The coating performance was evaluated through scratch tests, contact angle, electrochemical, and friction wear tests. The results demonstrated that the contact angle of the LDH-VS increased from 26° to 154° and remained above 120° even after prolonged immersion, exhibiting outstanding self-cleaning and antifouling properties. After 28 days of immersion in 3.5 wt% NaCl solution, the corrosion current density of LDH-VS decreased by four orders of magnitude to 8.09 × 10 −9 A·cm −2 compared to bare aluminum alloy and the microstructure remained intact, indicating excellent long-term corrosion resistance. Friction tests confirmed the superior friction reduction of the modified coating, with the average friction coefficient of LDH-VS decreasing to 0.28, significantly lower than that of the aluminum alloy. Scratch tests also verified the coating's excellent adhesion strength. This study provides new insights into the development and application of LDH in superhydrophobicity, long-term corrosion protection, and wear resistance.
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高影响因子
Journal of the Taiwan Institute of Chemical Engineers
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2025
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IF 6.3
Ji-Long Sun,Da-Shuai Li,Ting-Ting Li,Ching-Wen Lou,Xu Han,Hai-Tao Ren
Background Corrosion, being a pervasive and inevitable natural occurrence, poses a grave threat to engineering equipment, human well-being, and the environment. Polyaniline (PANI) is an excellent anti-corrosion filler that enhances the corrosion resistance of steel surface. The traditional PANI preparation methods are chemical oxidation or electrochemical oxidation at low temperature, and the reaction conditions are harsh and easy to cause energy waste. Methods Novel ECN@PANI composite fillers were synthesized using nitric acid etched g-C 3 N 4 (ECN) as photoinitiator at room temperature. ECN@PANI/WEP coatings were prepared by using synthetic ECN@PANI composites as corrosion inhibitors and waterborne epoxy resin (WEP) as raw materials. ECN@PANI/WEP coatings were then hydrophobically modified with polydimethylsiloxane (PDMS) to yield ECN@PANI/HWEP coatings. The comprehensive structures and optical properties were thoroughly evaluated through Field Emission Scanning Electron Microscopy (FESEM), X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), X-ray Photoelectron Spectroscopy (XPS), Electrochemical Impedance Spectroscopy (EIS) and Diffuse Reflectance Spectroscopy (DRS) studies. Significant findings ECN@PANI composite fillers with excellent anticorrosive properties were prepared by photocatalytic polymerization using ECN as a photoinitiator. XPS and XRD results show that ECN@PANI/HWEP coating forms a dense passivation layer (Fe 3 O 4 ) on Q235 steel surface, which reduces the corrosion of steel to the maximum extent; ECN@PANI/HWEP produces active substances under light, which oxidize, fracture, and degrade the cell wall when in contact with the cells, resulting in a coating with better anti-algae properties; and the ECN@PANI/HWEP coating refracts part of UV rays and converts the remaining UV rays into heat to achieve excellent UV resistance properties. Combining outstanding UV resistance and anti-algae properties, the ECN@PANI/HWEP coating ensures long-term corrosion protection.
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高影响因子
MINERALS ENGINEERING
·
2025
·
IF 5
Yusufujiang Mubula,Mingming Yu,Huashan Yan,Heyue Niu,Kun Xu,Zhehan Zhu,Jingzhong Kuang,Guangjun Mei
Rare earth molten salt electrolytic slag (RMES) contains abundant rare earth elements (REEs) and is a valuable secondary resource. However, conventional approaches to recovering REEs from RMES are hindered by high energy consumption, environmental pollution, and lengthy processing times. This study presents an ultrasonic enhanced (USE) atmospheric pressure alkaline leaching process, which integrates ultrasonic cavitation with concentrated NaOH to realize efficient phase reconstruction of fluorinated rare earth compounds. Under optimized conditions (60 wt% NaOH initial concentration, NaOH-to-slag mass ratio of 3:1, reaction temperature of 130 °C, ultrasonic power of 1440 W, reaction time of 70 min, and stirring speed of 100 r/min), the leaching recovery of neodymium (Nd) and praseodymium (Pr) reached 96.22 % and 95.21 %, respectively, representing a 60 % improvement compared to conventional heating (COH) process. Mechanistic analysis shows that ultrasound helps reduce particle size, increase local reaction temperature (up to 172 °C), and generate reactive oxygen components. These effects collectively accelerate the conversion of fluorinated rare earth compounds (NdF 3 , PrOF) to hydroxides (Nd(OH) 3 , Pr(OH) 3 ). This method can eliminate the emission of toxic gases (HF) and reduce energy input, providing a green and efficient approach for recovering rare earth elements from secondary resources.
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高影响因子
FUEL
·
2025
·
IF 7.5
Mengzhu Yu,Jingwen Chen,Zhicheng Zhu,Yaji Huang,Pu Yang,Hao Xu,Menghui Li,Lu Tang,Xihui Fan,Yifan Xu,Dongxu Cui
This study investigated the influence of various additives (CaO, Al 2 O 3 , SiO 2 , kaolin, and calcite) on the volatilization and immobilization of heavy metals during the coal combustion in a horizontal tube furnace (700–1100 ℃). Results showed that the Si/Al-based sorbents had less effect on the mineral changes of the combustion ash of coal than Ca-based sorbents which tend to react with the Si/Al components in coal ash to form Ca-containing aluminosilicates and affect the heavy metal retention. With the increase in combustion temperature, the volatilization of heavy metals gradually increased. At lower temperatures (700–900 ℃), Ca-based additives (CaO and calcite) enhanced Se and Pb retention due to the formation of Ca-Se/Pb compounds and competitive mineral incorporation. However, their efficacy diminished above 900 ℃ due to compound decomposition. The Si/Al-based additives (SiO 2 , Al 2 O 3 , and kaolin) exhibited superior immobilization of Zn, Cu, and Pb at elevated temperatures (1000–1100 ℃), attributed to the formation of aluminosilicates. In addition, when the combustion temperature increased, the toxicity of Se decreased more significantly than other elements as the proportion of acid extractable/exchangeable Se decreased. In contrast, the form distribution of Cr, Ni, and Mn are more influenced by Ca-based minerals. Specially, the proportion of Cr in acid extractable/exchangeable form almost doubled after the addition of CaO and calcite. This work was conducive to the subsequent control of heavy metal emissions in the coal burning process.
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高影响因子
WATER AIR AND SOIL POLLUTION
·
2025
·Vol. 237
·期 1
·8
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IF 3
Li Xiaoya,Zheng Ru,Duan Guangyu,Cao Zhanfang,Han Kai,Zhong Hong,Ma Xin,Wang Shuai
A poly( N -vinylpyrrolidone)-graphene oxide (NVP-GO) composite with high adsorption capacity for methylene blue (MB) was synthesized and comprehensively characterized using SEM, XRD, FT-IR, TG, elemental analysis, nitrogen physical adsorption, and XPS. The adsorption of MB onto NVP-GO was examined in relation to several variables, including contact time, adsorption temperature, initial concentration of MB, and pH. Adsorption kinetics, isotherms, and thermodynamics were thoroughly investigated. The adsorption kinetics followed the pseudo-second-order model, and the Langmuir isotherm model indicated a monolayer adsorption pattern of MB onto NVP-GO, with the maximum adsorption capacities ranging from 116.6 to 161.3 mg·g −1 at temperatures between 25 and 45 °C. Thermodynamic assessments and activation energy calculations demonstrated that the adsorption process was spontaneous, endothermic, and controlled by chemical activation. XPS analysis highlighted the significance of electrostatic interactions, n–π interactions, π–π stacking, and hydrogen bonding in mediating the adsorption mechanisms between NVP-GO and MB. Notably, NVP-GO maintained stable adsorption efficiency over three consecutive adsorption–desorption cycles, highlighting its potential as a promising adsorbent for wastewater treatment. Graphical
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高影响因子
OPTICAL MATERIALS
·
2025
·
IF 4.2
Chenyan Lu,Dajie Zou,Yanyan Jia,Yongchang Lu,Huan Wang,Yanfeng He
In this study, a novel nitrogen-chlorine-codoped carbon quantum dots (NCl-CQDs) with low toxicity, thermal stability, good fluorescence properties, biocompatibility and high sensitivity was successfully prepared by hydrothermal carbonization. Based on the above advantages of NCl-CQDs, the NCl-CQDs was used to construct fluorescence sensing system for fluorescence probes. The maximum fluorescence emission wavelength was obtained at 470 nm when the excitation wavelength was 390 nm. The fluorescence signal was in the state of “ON”. The introduction of 2,6-Dichloroindophenol Sodium (DCIP) resulted in the quenching of fluorescence intensity due to photoinduced electron transfer between DCIP and NCl-CQDs. At this point, the color of the solution changed from brownish-yellow to light blue, indicating that the fluorescence signal was in an “OFF” state. Upon addition of ascorbic acid (AA) to the NCl-CQDs/DCIP system, the corresponding fluorescence signal was restored due to the special interaction between AA and DCIP. The color of the corresponding solution changed from light blue to colorless. The fluorescence signal was in the “on” state. Therefore, an “ON-OFF-ON” sensing system and colorimetric sensing system for AA was constructed using the NCl-CQD fluorescence probe. Under the optimized experimental conditions, the proposed methods exhibited satisfactory linear ranges. Specifically, the linear range for AA detection by the fluorescence sensor spanned from 1.2 μM to 180.33 μM, while that by the colorimetric sensor ranged from 1.32 μM to 166.55 μM. The corresponding detection limits were determined to be 0.68 μM and 0.55 μM, respectively. In summary, this sensing system could effectively enhance selectivity, sensitivity, and accuracy by preventing false positive detection results caused by environmental and system errors.
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高影响因子
WATER AIR AND SOIL POLLUTION
·
2025
·Vol. 237
·期 1
·9
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IF 3
Liu Yiqing,Hu Hong,Chen Chuanzeng,Xu Linghan
Generally, Fe(II) has an efficiently catalytic activity toward peroxymonosulfate (PMS), but the slow conversion of Fe(III) to Fe(II) and production of iron sludge impede the practical application of Fe(II)/PMS system. In this work, ascorbic acid (AA), a complexing agent and reductant, was introduced to Fe(III)/PMS process to facilitate the Fe(III) reduction. The decoloration of rhodamine B (RhB) was obviously enhanced in Fe(III)/PMS process with the addition of AA. Fe(III)-AA complex was firstly generated in Fe(III)/AA/PMS process via the complexation and then was reduced to Fe(II), which could catalyze PMS to yield oxidative species. Fe(IV), sulfate radical (SO 4 •− ) and hydroxyl radical ( • OH) were the working oxidants for RhB decoloration in this system, and SO 4 •− played a major role. Increasing Fe(III), AA or PMS dosage was beneficial to RhB decoloration, but their excessive concentration would hinder RhB decoloration. The existence of HCO 3 − , SO 4 2− or FA in this system showed an inhibition effect on RhB decoloration, while a facilitation effect was obtained when the high concentration of Cl − was present. This research offers a way to improve PMS activation by Fe(III) and a technology for eliminating the refractory organic pollutants from the contaminated water.
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高影响因子
CERAMICS INTERNATIONAL
·
2025
·Vol. 51
·期 28
·58163-58170
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IF 5.6
Ning Guan,Junqi Chen,Huaicheng Xiang,Jie Li,Wei Sun,Yuandong Qin,Ying Tang,Liang Fang
In microwave communication, combining a high quality factor ( Q×f ; i.e., low dielectric loss) with a near-zero temperature coefficient of resonant frequency ( τ f ) remains a significant challenge. Here, we propose to enhance the structural stability of the rock-salt and perovskite layers in K 2 NiF 4 -type ceramics by using entropy engineering methods, thereby reducing dielectric loss and improving the temperature stability of the resonant frequency. Novel high-entropy ceramics Ca(Pr 0.2 Nd 0.2 Sm 0.2 Eu 0.2 Y 0.2 )AlO 4 with a K 2 NiF 4 structure have been synthesized via the solid-state reaction method. Excellent microwave dielectric properties with a low permittivity ( ε r ) of 19.4, a Q×f of 105,223 GHz, and a near-zero τ f of −6.23 ppm/°C were obtained at 1400 °C. A significant enhancement in the mechanical properties of Ca(Pr 0.2 Nd 0.2 Sm 0.2 Eu 0.2 Y 0.2 )AlO 4 ceramic was achieved due to the improvement of configuration entropy. Furthermore, a cylindrical dielectric resonator antenna (CDRA) was developed, showcasing a high simulated radiation efficiency of 93.9 % and a gain of 6.66 dBi at the center frequency of 3.25 GHz. This indicates that Ca(Pr 0.2 Nd 0.2 Sm 0.2 Eu 0.2 Y 0.2 )AlO 4 high-entropy ceramic holds promising applications in satellite communication due to its low dielectric loss.
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高影响因子
Biomaterials Advances
·
2025
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IF 6
Jianfei Bai,Chunyu Han,Yuqi Gao,Dezhou Wang,Shuang Yang,Guanliang Liu,Huichao Sun,Shengrui Gao,Wanzhong Yin,Wenzhi Song
Objectives This study developed a near-infrared (NIR) light-responsive shape-memory plant-based resin bone scaffold via ultraviolet-assisted direct ink writing (UV-DIW) to address limitations in existing acrylated epoxidized soybean oil (AESO) scaffolds, including mismatched glass transition temperature (Tg) with physiological conditions and reliance on external heat sources. Methods Polydopamine-modified hydroxyapatite (HA@PDA) particles were blended into liquid AESO to prepare four composite inks with HA@PDA mass fractions of 0 % (AESO), 5 % (A5), 10 % (A10), and 15 % (A15). Bone scaffolds were fabricated using UV-DIW technology at 0 °C. The scaffolds implanted in bone defects could achieve remote temperature regulation via NIR irradiation to induce deformation. Mechanical properties, thermal transitions, photothermal performance, shape-memory behavior, and osteogenic activity were systematically investigated. Results Increasing HA@PDA content significantly improved the scaffolds' printing accuracy, surface hydrophilicity , photothermal performance, shape-memory properties, and biocompatibility. A15 exhibited uncured resin during tensile tests and was excluded from subsequent analyses. The Tg values of AESO, A5, and A10 approached body temperature. A10 demonstrated optimal performance , achieving 40 °C within 4 min under 1 W/cm 2 NIR irradiation and a shape recovery rate of 97 % within 16 s. Significance A10 scaffold exhibited NIR-responsive shape memory properties, enabling minimally invasive implantation through compressed miniaturized configurations and precise shape recovery under targeted NIR irradiation, while retaining post-implantation dynamic reconfiguration capabilities through non-invasive NIR stimulation. The integrated design methodology combines patient-specific design with minimally invasive delivery and remote postoperative control, addressing the limitations of rigid static implants by enabling adaptable bone scaffolds for personalized tissue regeneration .
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PubMed
高影响因子
Journal of Materials Chemistry A
·
2025
·Vol. 13
·期 30
·24610-24618
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IF 9.5
Jia Chen,Yafei Liu,Chaoyan Ma,Hao Sun,Yaxin Wei,Ruifeng Wu,Aimin Chang,Bo Zhang
The structural stability and electrical stability of thermosensitive ceramics are critical to their use under high-temperature conditions. Nevertheless, achieving concurrent stabilization of crystallographic configurations and electrical characteristics at elevated temperatures remains a persistent challenge for rare earth tantalite thermosensitive ceramics. Herein, we propose a high-entropy strategy to design “localized alternating tension strain” by introducing a large number of different kinds of [REO8] in combination with the original distortion [TaO6] to stabilize the electrical properties of the rare earth tantalite material. The obtained (HoErTmYbLu)0.2TaO4 material demonstrates an intriguing self-compensation mechanism wherein the lattice distortion induced by the high-entropy configuration effectively counteracts inherent structural distortions arising from interconnected [TaO6] octahedral units. This synergistic distortion compensation engenders exceptional stability, as evidenced by a remarkably low relative standard deviation (RSD) of 0.0311 in resistance during 180 s continuous measurements. The material exhibits high temperature measurement sensitivity (B = 12 851 K) and superior thermoresistive consistency across an ultra-wide temperature range (673–1773 K), with resistivity–temperature dependence closely adhering to the Arrhenius equation (Pearson's r = 0.99819). After aging for 50 h, the aging coefficient begins to stabilize and only fluctuates within 3%. This investigation establishes a paradigm for developing high-performance thermosensitive ceramics through entropy-mediated structural stabilization.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Mingyue Kang,Xuejing Shen,Hongyu Fan,Zhanjun Wu,Tao Sun
With the promotion of electric vehicles and electronic products, the development of high-capacity, fast-charging, and cost-effective rechargeable batteries has become extremely urgent. Aluminum-ion batteries (AIBs) have become a promising system due to their high aluminum reserves, high theoretical specific capacity, and high safety. However, their actual capacity is far lower than the real capacity due to the limitation of cathode. Here, we report a construction strategy of reduced graphene oxide-intercalated MoS 2 nanoflowers cathode via a hydrothermal method . It promoted the transition of MoS 2 crystal phase from 2H to 1T, and the expansion of interlayer spacing from 0.62 nm to 1.03 nm, overcoming the shortcomings of slow electrochemical reaction kinetics and low capacity caused by the outstanding semiconductor properties of 2H MoS 2 and the compact interlayers. The obtained batteries reached capacity up to 143 mAh g −1 , high Coulombic efficiency up to 96.9% at 1 A g −1 . The batteries retained 95.6% of the original capacity after 1000 cycles. Notably, it retains 75 mAh g −1 at ultrahigh current densities of 10 A g −1 over 10,000 cycles. Our methodology opens up an exciting way to design cathode architecture for next-generation AIBs. It also provides a new perspective for the design and preparation of other battery systems.
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高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
Haoran Gu,Hongyi Tian,Xinxu Yuan,Jingbin Lu,Haolin Li,Ke Zhang,Hanxiao Yan,Shuaiwen Yi
To address the low power output issue of Betavoltaic Batteries in practical applications, this paper proposes a novel isotope beta radiation energy conversion and storage system integrating a GaAs-based Betavoltaic Batteries with a low self-discharge lithium metal battery utilizing flake graphite. This system enables simultaneous collection, conversion, and storage of beta radiation energy. In experiments, we fabricated a lithium metal battery employing flake graphite as the cathode, lithium metal as the anode, and LiFSI in DME electrolyte supplemented with 4-n-pentyl-4′-cyanobiphenyl(5CB) additive. This battery was then connected to the GaAs-based Betavoltaic Batteries. Experimental results demonstrate successful energy harvesting from the Betavoltaic Batteries alone, which effecttively powered an LCD display.
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高影响因子
危险品化学品经营许可证（带存储）