TRIBOLOGY INTERNATIONAL
·
2025
·
IF 6.9
Shaowen Dong,YongFeng Yang,XiaoYang Ma,ChunJuan Cui,Wei Wang,JinJin Li
Friction and wear shorten equipment lifespan and cause energy loss, nd superlubrication achieved on steel-to-steel surfaces remains challenging. By adding tannic acid-modified black phosphorus nanosheets (TA-BP) to the tartaric acid/glycolic acid mixture (TCA/EG), macroscopic superlubrication can be achieved on engineering steel surfaces in just 5 s. Compared to TCA/EG, the wear rate of friction pairs decreased by 99% to 1.68×10⁻ 10 mm 3 ·N -1 ·m -1 . Surface analysis revealed that TA-BP rapidly deposits on friction pair surfaces, decomposes TCA into carbon films, and forms a composite friction film with BP that exhibits ultra-low shear strength. This tribofilm further reduces friction coefficient through synergistic interaction with lubricants. The study provides new insights for developing super lubricants suitable for mechanical applications.
研究领域:
材料科学
·
摩擦学
·
表面工程
·
纳米材料
·
机械工程
✓ 已验证
产品关联
DOI
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
·
2024
·
IF 8.2
An Wang,Meiling Wu,Zhongyuan Li,Yuqiang Zhou,Fanmin Zhu,Zhanbin Huang
This study utilized discarded steel slag (SS) as raw material and prepared modified steel slag materials (SS-SBC, SS-NBC, SS-BHA) through modification with biomass materials such as straw biochar (SBC), nutshell biochar (NBC), and biochemical humic acid (BHA). These materials were then applied for the removal of Pb from both solution and soil. The physical and chemical properties of the materials were analyzed using characterization techniques such as SEM, EDS, XRD, and BET. The specific surface area of the modified materials increased from the original 3.8584 m 2 /g to 34.7133 m 2 /g, 181.7329 m 2 /g, and 7.7384 m 2 /g, respectively. The study then explored the influence of different adsorption conditions on the adsorption capacity of Pb in solution, determining the optimal conditions as follows: initial concentration of 200 mg/L, adsorbent mass of 0.04 g, temperature of 15 °C, and pH = 2. To further investigate the adsorption process, kinetic and isotherm models were established. The results indicated that the adsorption process for all three materials followed a pseudo-second-order kinetic model and Freundlich isotherm model, suggesting a multi-layer chemical adsorption. Thermodynamic analysis revealed that the adsorption process was an exothermic spontaneous reaction. Soil cultivation experiments were conducted to explore the effects of different material addition amounts and cultivation times on the passivation of Pb-polluted soil. Analysis of heavy metal forms in the soil revealed that the addition of modified materials reduced the acid-extractable form of Pb in the soil and increased the residual form, which is beneficial for reducing the migration of Pb in the soil. FT-IR and XPS analyses were employed to study the functional groups, element composition, and valence states before and after adsorption passivation of Pb by the three materials. The results confirmed that the adsorption mechanisms of SS-SBC, SS-NBC, and SS-BHA mainly involved electrostatic adsorption, ion and ligand exchange , and surface precipitation. This study not only provides a new material for adsorbing and immobilizing heavy metals in soil and water but also offers a new approach for the resource utilization of steel slag waste.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Lei Guo,Lei Zhu,Savaş Kaya,Rui Sun,Alessandra Gilda Ritacca,Kai Wang,Jun Chang
Mild steel is a versatile, inexpensive, highly flexible, and easily weldable material widely used in construction, pipelines, transportation, shipping, and other industries. However, it is also extremely susceptible to corrosion processes under the influence of weather phenomena, posing a significant threat to society and human health. In this work, we investigated the corrosion inhibition capacity of a new type of N, S codoped carbon dots (N, S-CDs) on Q235 carbon steel in the acidic medium. The goal product was synthesized by hydrothermal method using o-phenylenediamine and amidinothiourea as precursors. Combined with electrochemistry, Fourier transform infrared (FTIR) spectroscopy, scanning electrochemical microscopy (SECM), and theoretical calculations, the inhibition properties of N, S-CDs on Q235 carbon steel in HCl solution were evaluated. The potentiodynamic polarization (PDP) curves and electrochemical impedance spectroscopy (EIS) results indicated that the corrosion inhibition efficiency reached 90.3 % and 92.4 % at 100 mg/L concentration, respectively. Indeed, the presence of N, S-CDs reduced the electric double-layer capacitance, increased the thickness of the adsorption film on the carbon steel surface, and reduced the corrosion current density, resulting in a delay of corrosion. X-ray photoelectron spectroscopy (XPS) analysis and surface characterization confirmed the successful doping of N, S and the formation of adsorption films, the Langmuir adsorption isotherm also confirmed the superior inhibition of N, S-CDs on the surface of Q235 carbon steel through physical and chemical adsorption mechanisms. At the same time, quantum chemical calculations and molecular dynamics (MD) simulations revealed its inhibition mechanism at the molecular/atomic level.
研究领域:
材料科学
·
电化学
·
表面科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Bio Materials
·
2025
·
IF 4.7
Fei Ma,Xinde Tang,Yanan Chao,Xinyan Wang,Xuanjie Zheng,Ruixin Fu,Zihao Tang,Laixue Pang,Fuying Dong,Haixia Cheng,Peng Wang
Polymeric coatings that combine resistance to adhesion (“defending”) and killing (“attacking”) of biocontaminants were proposed to endow the surface with nonadhesive and bactericidal capabilities. In contrast, a zwitterionic copolymer P(GMA-co-DMAPS) with antifouling groups ([2-(methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl)ammonium hydroxide, DMAPS) and a zwitterionic/cationic copolymer P(GMA-co-DMAPS-co-DMC) with bactericidal groups ([2-(methacryloyloxy)ethyl]trimethylammonium chloride, DMC) were synthesized, of which the latter exhibited synergistic inhibitory and killing properties. The distinct feed ratios of monomers were conducted, and the optimal molar ratio was obtained. The polymer coating was chemically bonded to the surface of substrates such as stainless steel via the addition–elimination reaction of epoxy groups and hydroxyl groups. Stainless steel surfaces grafted with G20D80-5DMC exhibited fine antifouling and bactericidal properties. The results showed that a highly efficient defending–attacking synergistic effect was achieved with antiprotein adsorption of more than 90% and bactericidal rates against Staphylococcus aureus and Escherichia coli of 98.6% and 96.6%, respectively. The polymers proposed in this study can effectively play an antifouling and antibacterial synergistic role and can be grafted onto substrates through a simple and effective method, showing attractive potential in marine, biomedical, and industrial applications.
研究领域:
材料科学
·
生物医学
·
海洋科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CONSTRUCTION AND BUILDING MATERIALS
·
2024
·
IF 7.4
Bin Zeng,Shaojie Jia,Wenjin Han,Xumin Zhuang,Liwu Mo,Toshiharu Kishi
The development of sustainable cementitious materials is critical for reducing the environmental impact of the cement industry. This study examined the feasibility of using the new amide-alcohol organic hydration promoter, TriDiethanolamine Citrate (TriDECA), in fly ash or steel slag (FA/SS) composite cement. The effects of TriDECA on the hydration process, hydration products, microstructure and compressive strength of FA/SS composite cement, as well as its impact on the dissolution of FA and SS, were systematically investigated. Results demonstrated that TriDECA significantly accelerated the dissolution of FA and SS, promoted the formation of hydration products (C-S-H, AFm), and refined the pore structure. Additionally, TriDECA increased the concentration of critical ions in the pore solution, promoted hydration and enhanced overall performance. At 28 days, FA-TriDECA and SS-TriDECA showed 8.1 % and 14.2 % higher strength than FA-TEA and FA-Ref, respectively. For SS-TriDECA, the increase was 13.2 % and 11.2 % compared to SS-TEA and SS-Ref, respectively. These findings suggest that TriDECA is a promising additive for enhancing the sustainability and performance of FA/SS composite cements, offering advantages in hydration promotion and microstructure improvement over traditional alkanolamines.
研究领域:
建筑材料学
·
可持续材料科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Water Process Engineering
·
2024
·
IF 6.3
Wenjie Wu,Weijia Zhou,Shuangcheng Li,Jieyu Wan,Jun Shao,Changfeng Wan,Shuiliang Chen,Haoqing Hou
Accumulation of oil spills and industrial emissions causing serious damage to the natural environment, and the treatment of oily waste water plays an essential role in resource utilization and environmental protection. Although lots of materials have been reported for the oil/water separation, most of them are still high cost and unstable during application in complicated environment. In this study, the phytic acid (PA) was anchored on the surface of stainless steel mesh (PA-SSM). Results revealed that the PA-SSM exhibited superhydrophilic/underwater superoleophobic properties, and presented ultra-high flux during separating the ether/water mixture (1.3 × 10 5 L·m −2 ·h −1 ). When the PA-SSM was employed to separate the high viscosity freezing oil/water mixture, it also presented a high flux of 1.1 × 10 5 L·m −2 ·h −1 , and the separation efficiency was still higher than 99.8 % even after consecutive separated for 60 times. Moreover, the PA-SSM exhibited excellent resistance to acid and salts, mechanical stability and contamination. The simple preparation, low cost and excellent performance of PA-SSM provide an option for the efficient separation of oil/water mixture in the continuous separation and harsh environment.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ANTI-CORROSION METHODS AND MATERIALS
·
2024
·Vol. 72
·期 1
·13-21
·
IF 2.3
Zhiping Zhu,Chen Tian,Xiyao Shi,Tao Li,Shangming Zhou
PurposeThe purpose of this paper is to study the effect of nano polypyrrole-modified boron nitride on the performance of phosphate film.Design/methodology/approachBy adding polypyrrole-modified boron nitride to the phosphate solution, a phosphate film is formed on the metal surface, improving its corrosion resistance. The effect of different concentrations of polypyrrole-modified boron nitride on the corrosion resistance of Q235 carbon steel surface was studied. The corrosion resistance of the phosphate film was evaluated using the copper sulfate drop test. The electrochemical corrosion performance of the phosphate film was assessed using the weak polarization curve method and electrochemical impedance spectroscopy. The surface of the samples was characterized using scanning electron microscopy and X-ray diffraction analysis.FindingsThe results show that samples containing polypyrrole-modified boron nitride have a denser and more uniform phosphate film. When the concentration of polypyrrole-modified boron nitride is 0.6 g/L, the drop time of copper sulfate on the formed phosphate film can reach 219 s, which is a 189% increase compared to the performance of the sample without the additive. The current density is 1.06 × 10−6A/cm2lower than that of the pure phosphate film, indicating the best corrosion resistance. Polypyrrole-modified boron nitride effectively promotes the formation of the phosphate film.Originality/valueThis study used the modification of phosphate solution using nanoparticles to investigate the influence of different nanoparticle concentrations on the phosphate film. The corrosion resistance of the phosphate film was enhanced, providing a method and theoretical guidance for the improvement of phosphate solution formulation.
研究领域:
材料科学
·
腐蚀与防护
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Yuerong Wang,Youqing Sun,Yao Zhao,Dan Liu,Baozhong Zhang,Alex T. Kuvarega,Bhekie B. Mamba,Jianzhou Gui
In this study, functionalized carbon dots were synthesized in one step from L-histidine and imidazolyl ionic liquids using an ionic liquid-assisted microwave method as green corrosion inhibitors for steel in a 1 M HCl solution. Different ionic liquid anions (CF 3 COO - and HSO 4 - ) were introduced in the preparation of the carbon dots , and their microstructures and surface properties were characterized. Notably, the corrosion inhibition efficiency of the prepared CDs (assisted by CF 3 COO - ) reached 94.2% at 5 mg‧dm −3 . The corrosion inhibition behavior of CDs on mild steel in 1 M HCl was investigated through DFT calculations . Our investigation revealed that the anions of the selected ionic liquids have a certain influence on the structure of the carbon dots, which correlates with the performance of the carbon dot corrosion inhibitor. Therefore, this study provides guidance for the preparation of functionalized carbon dot corrosion inhibitors using a one-step microwave method and the selection of ionic liquids (as solvents, modifiers, and mediums for microwave conversion).
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Materials
·
2024
·Vol. 17
·期 5
·1094
·
IF 3.1
Lincai Peng,Shaomu Wen,Jing Yan,Huali Yu,Zhan Wen,Zhi Wang
Carbon dioxide corrosion presents a significant challenge in the oil and gas field. This study simulates the corrosive environment characteristics of oil and gas fields to investigate the corrosion inhibition properties of three triphenylmethane dyes. The inhibitive performance and mechanisms of these dyes were analyzed through weight loss and electrochemical testing, revealing that crystal violet (CV) exhibited a superior inhibition effectiveness over malachite green (MG) and Fuchsine basic (FB). At a concentration of 150 ppm in a CO2-saturated 5% NaCl solution at 25 °C, CV achieved an impressive maximum inhibition efficiency of 94.89%. With the increase in temperature, the corrosion rate slightly decreased, and the corrosion rate was 92.94% at 60 °C. The investigated CV acted as a mixed-type corrosion inhibitor and its protection obeyed the Langmuir adsorption isotherm. The corrosion morphology was characterized by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and confocal laser scanning microscopy (CLMS). Quantum chemical calculations and molecular dynamics simulations were employed to validate the corrosion inhibition mechanisms, providing guidance for the further application of these dyes in corrosion control.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION SCIENCE AND TECHNOLOGY
·
2024
·
IF 2.3
Cihang Chen,Ziyu Wu,Yufu Wang,Hong Wei,Baiyu Li
A highly efficient continuous oil/water separation process is proposed where both superhydrophobic/superoleophilic oil-removing and superhydrophilic/underwater superoleophobic water-removing stainless steel meshes are installed at the bottom of the same container to construct a dual-channeled separator, in which agitation is applied to avoid the stratification of oil/water mixtures. Continuous oil/water separation is easily realized by this dual-channeled separator. Stainless steel meshes above 300-mesh afford separation efficiency higher than 99.5% for oils lighter than water such as gasoline, hexane, and heptane and oils heavier than water like carbon tetrachloride in a wide range of ratio of oil to water.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
·
2018
·
IF 2.179
Jie Peng,Huiping Zhang,Ying Yan
A new method was employed to synthesize a novel high voidage ZIF-8 membrane over paper-like stainless steel fibers (PSSF). Firstly, paper-like stainless steel fibers (PSSF) were prepared by wet lay-up papermaking and sintering process , then the ZIF-8 membrane was coated on the PSSF support by secondary growth process. The effects of the seed layer growth time, the Hmim (2-methylimidazole)/Zn (Zinc nitrate hexahydrate) molar ratios , the solvothermal synthesis temperature and time on properties of ZIF-8 membrane/PSSF composites were investigated by modern characterization methods. The experimental results indicated that the void volume of ZIF-8 membrane/PSSF composites reached 89%. The optimal specific surface area of composites was 398 m 2 /g and the total pore volume was 0.174 cm 3 /g. Specifically, the size of seeds were approximately 250 nm when Hmim/Zn molar ratios and seed layer deposition time were 80 and 12 h, respectively. Under the condition of optimal seed layer, ZIF-8 membrane/PSSF composites showed outstanding continuity, compactness, free-defect and crystal shape when solvothermal synthesis time and solvothermal synthesis temperature were 24 h and 100 °C, respectively.
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
LANGMUIR
·
2024
·
IF 3.7
Jingfang Zhu,Haizhou Huang,Haiyang Jia,Meng Dong,Xubing Tang,Wenbin Sun,Longyang Li,Litao Sun
Superhydrophobic materials have been widely applied in oil–water separation, self-cleaning, antifouling, and drag reduction; however, their role in liquid evaporation and drying remains unexplored. Inspired by the microstructure of the nonwetting legs of water striders, we designed a low-adhesion superhydrophobic cylindrical barrel (CB) derived from stainless-steel mesh (SSM) to enhance liquid thermal evaporation and drying. The CB was created by hydrothermally depositing zinc oxide (ZnO) with multilevel morphologies onto metal wires, followed by modification with low-surface-energy stearic acid (SA). We investigated the impact of the SSMCB on water evaporation and analyzed the decline in the liquid levels under varying porosities and temperatures through numerical normalization. A functional relationship was established between decline height, porosity, and temperature, revealing that the drop height increased from 3.7 to 25 mm as porosity increased from 0 to 0.5263. Moreover, the superhydrophobic coating demonstrated excellent resistance to friction and peeling, indicating improved mechanical stability.
研究领域:
材料科学
·
热力学
·
界面化学
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）