CONSTRUCTION AND BUILDING MATERIALS
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2024
·
IF 7.4
Yizheng Zhang,Genshen Li,Saisai Zhang,Shuqiong Luo,Xuemao Guan,Jianping Zhu,Xiangming Zhou,Songhui Liu
This study investigates the enhancement of mechanical properties in carbonated steel slag through surfactant-assisted CaCO 3 crystallization. Sodium dodecyl benzene sulfonate (SDBS) was employed at various concentrations (0.1–0.4 mol/L) and temperatures (20–60 °C) to modulate the carbonation process. Optimal performance was achieved with 0.2 mol/L SDBS at 40 °C, resulting in a maximum CO 2 uptake of 8.51 % and a compressive strength of 62.89 MPa, 81.66 % higher than unmodified steel slag. Characterization techniques confirmed the formation of crystalline calcite, vaterite, and aragonite, contributing to improved microstructure and strength. SDBS micelles act as templates for CaCO 3 nucleation and growth, with low concentrations facilitating carbonation and high concentrations inhibiting it. This research offers new insights into surfactant-assisted crystallization for enhancing carbonated steel slag properties, paving the way for high-performance, eco-friendly building materials from industrial waste.
研究领域:
材料科学
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环境工程
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DOI
高影响因子
Water
·
2024
·Vol. 16
·期 21
·3145
·
IF 3
Wei Wu,Yiming Nie,Zhixin Wang,Tianyin Huang,Xiaoyi Xu,Hanhan Liu,Peirong Li,Bingdang Wu
Organophosphates are a type of emerging environmental contaminant, which can be removed effectively by adsorption. Here, modified steel slag was examined for its adsorptive performance in the removal of hydroxyethylidene diphosphonic acid (HEDP) from water. Compared to acid (55.3%, maximum removal rate) and base (85.5%) modification, high-temperature modification (90.6%) significantly enhanced steel slag’s adsorption capacity for HEDP, surpassing that of unmodified slag (71.2%). Kinetic analyses elucidated a two-phase adsorption process—initial rapid adsorption followed by a slower equilibrium phase. The results of adsorption energy analysis showed that modified steel slag preferentially occupied the sites with higher energy, which promoted the adsorption. After five regeneration cycles, the adsorption properties of the material were not significantly reduced, which indicates that the material has good application potential. Microscopic and spectroscopic techniques, including SEM-EDS, FTIR, and XPS, were employed to uncover the surface chemistry and structural changes responsible for the enhanced adsorption efficiency. The adsorption mechanism of HEDP on steel slag is a complete process guided by hydrogen bonding interactions, strengthened surface complexation, and optimized ligand exchange. This study advances the sustainable utilization of industrial waste materials and contributes significantly to the development of innovative water treatment technologies.
研究领域:
环境科学
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材料科学
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化学工程
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DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Fengting Li,Yi Zhou,Zhikun Wang,Wentao Qu,Huiling Su,Miantuo Li,Nannan Cui,Shuangqing Sun,Yu Fu,Songqing Hu
Carbon dots (CDs) have been studied as eco-friendly corrosion inhibitors for metals. However, the mechanisms behind their effectiveness are not fully understood. We developed a cost-effective and environmentally friendly method to synthesize Ce-doped CDs (CeCDs) using urea, ammonium citrate, and cerium nitrate. By optimizing the Ce doping concentration to 200 μg/L, we achieved a high corrosion inhibition efficiency. When tested in 1 M HCl, CeCDs at 200 mg/L showed 80 % inhibition, while ionic liquid-modified CeCDs (IL-CeCDs) demonstrated an even higher efficiency of 95.35 % on N80 steel. Both CeCDs and IL-CeCDs adsorb onto metal surfaces through a combination of physical and chemical interactions, inhibiting corrosion mainly by affecting cathodic reactions. Among different Ce-doped CDs, CeCD3N, which has a single Ce atom doping, exhibited the highest molecular reactivity, allowing it to interact more effectively with the Fe surface. Further analysis revealed that Ce doping reduces the energy gap of CDs, enhancing their reactivity. Molecular dynamics simulations showed that CeCD3N adsorbs more strongly and forms a closer inhibitor film on the Fe surface compared to other Ce-doped CDs, making it an effective corrosion inhibitor.
研究领域:
材料科学
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腐蚀与防护
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表面化学
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Yu Wu,Lingchi Zeng,Yancheng Zheng,Fuchang You,Xuejin Liu
In this study, nitrogen-doped carbon dots (N-CDs) were synthesized via a one-step hydrothermal method using pectin polysaccharide as the carbon source, with 1-hexylamine, 1,2-diaminocyclohexane, and diethylenetriamine as individual nitrogen sources. The chemical composition, fluorescence properties, and morphology of the synthesized N-CDs were characterized. Their corrosion inhibition performance on N80 steel in 1 M H 2 SO 4 was evaluated using electrochemical analyses and weight loss experiments. Tafel and EIS analyses demonstrated that at a concentration of 200 mg/L, the maximum inhibition efficiencies of PHA-CDs, PCA-CDs, and PDA-CDs, synthesized using monoamine, diamine, and triamine as nitrogen sources, were 75.3 %, 90.1 %, and 95.4 %, respectively. The inhibition efficiency increased with the total nitrogen and pyrrolic N content in the N-CDs, corresponding to the choice of nitrogen source. Weight loss experiments further confirmed these trends. Additionally, the N-CDs were found to act as mixed-type inhibitors with a predominant anodic inhibition effect and are classified as predominantly chemisorptive. The adsorption behavior adhered to the Langmuir adsorption model, where coordination complexes formed between pyrrolic N and metal Fe increase the surface coverage of the adsorption film, thereby enhancing corrosion resistance.
研究领域:
材料科学
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电化学
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绿色化学
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产品关联
DOI
高影响因子
Materials Today Communications
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2025
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IF 4.5
Zijin Cheng,Chuang Liu,Ruoyu Sun,Yixian Hu,Jing Zhao,Jiliang Mo
Drawing inspiration from the way natural organisms regulate surface wettability for specific functions, this study introduces a method combining chemical etching and low-surface-energy modification to rapidly fabricate superhydrophobic stainless-steel surfaces under high-temperature conditions. The impact of etching time on surface roughness and wettability was systematically investigated. The results indicate that by adjusting the etching time, the surface roughness can be precisely controlled, creating a multi-scale micro-nanostructure essential for superhydrophobicity. When the reaction time is 1.5 h, the superhydrophobic stainless-steel surface achieves a contact angle of 156.2° and a sliding angle of just 1.5°, exhibiting excellent superhydrophobic properties. Further tests demonstrate that the superhydrophobic surface excels in mechanical stability, thermal stability, corrosion resistance, anti-icing and self-cleaning properties. Additionally, a hydrophilic-superhydrophobic stainless-steel hybrid surface was fabricated using machining, and when combined with a diversion channel, it significantly enhances water collection performance, facilitating the rapid collection and removal of water droplets. These findings provide valuable theoretical insights and practical guidance for the development and application of superhydrophobic stainless-steel materials in industrial fields such as anti-fouling, anti-icing and water collection.
研究领域:
材料科学
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表面工程
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产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR STRUCTURE
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2025
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IF 4.7
Yuelong Liu,Jinyan Liu,Bo Chen,Xiaohui Ren
Corrosion of metals has significant implications for international livelihoods, and excessive pickling can lead to corrosion of Q235 steel during the production process, thus, this study investigates the corrosion inhibition performance of three betaine surfactants (SB3-n, 10, 12, 14) with different carbon chain lengths and KI compounds, on Q235 steel in 1 mol·L -1 hydrochloric acid through experimental and theoretical analyses. The results show that the optimal efficiency of SB3-n/KI can be above 90%. Corrosion inhibitors adsorb simultaneously on the metal surface, making the metal surface smooth and flat. Theoretical analysis shows that the adsorption ability of I - is higher than that of Cl - , and all three compound inhibitors adsorb on the metal surface chemically, with the adsorption energy in the order of SB3-14
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
International Journal of Electrochemical Science
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2023
·
IF 1.5
Yong Lu,Huixia Feng
Synergistic effect of rare earth salts conversion coating with phytic acid conversion coating was studied. Rare-earth salts were used as post-treatment to modify the phytic acid coated steel. The corrosion resistance properties of different coatings was investigated with electrochemical impedance spectroscopy in 3.5 wt.% NaCl solution. The corrosion resistance of phytic acid coated steel on steel was further enhanced with cerium nitrate post-treatment. The corrosion rate of phytic acid coated steel was seriously impaired by cerium nitrate post-treatment. But scanning electron microscopy (SEM) images indicated that there are also some micro-cracks on the coating surface when phytic acid coated steel was post-treated with cerium nitrate conversion bath. X-ray photoelectron spectroscopy (XPS) results demonstrated that the phytic acid could bind to the steel surface through the formation of -P-O-Fe and the cerium salts on the steel surface existed in the forms of both Ce 3+ and Ce 4+ .
研究领域:
材料科学
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腐蚀与防护
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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2020
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IF 6.155
Yuwei Ye,Zilong Jiang,Yangjun Zou,Hao Chen,Shengda Guo,Qiumin Yang,Liyong Chen
An eco-friendly and effective corrosion inhibitor (N-CDs) was acquired by hydrothermal method in methacrylic acid and ethyl(methyl)amine precursors. Afterwards, the weight loss and electrochemistry measurement were chosen to appraise the corrosion inhibition behavior of as-prepared N-CDs for Q235 steel in Cl − contained solutions. The change rules of EIS and Tafel data displayed that the as-prepared N-CDs revealed a high-efficiency protection for steel in all test environments. Meanwhile, the inhibition efficiency of steel reached up to 93.93 % (1 M HCl) and 88.96 % (3.5 wt% NaCl) at 200 mg/L of N-CDs. Furthermore, the N-CDs could form the adsorption film on steel surface to avoid the strong attack of Cl − . By analysis, the adsorption mechanism of as-prepared N-CDs on steel surface was physicochemical interaction , which strictly complied with the Langmuir adsorption model in both solutions.
研究领域:
材料科学
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电化学
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2020
·
IF 7.489
Weihao Fan,Huaiyuan Wang,Chijia Wang,Zhanjian Liu,Kaka Li,Yanji Zhu
CeO 2 was used as the only oxidant for aniline polymerization, and polyaniline (PANI) was grown on CeO 2 surface to form CeO 2 @PANI nanocomposites. SEM and TEM showed that the CeO 2 @PANI composites were nanorods in a core-shell structure. XPS indicated that CeO 2 -core was reduced by aniline into Ce 3+ , which was then captured by the PANI-shell. Then the passive ability of CeO 2 @PANI coating on steels was explored. EIS showed that the impedance modulus of the CeO 2 @PANI coating exceeded 10 8 Ω·cm 2 after accelerated immersion. The SVET and XPS confirmed that PANI polarized the anodic reaction, Ce 3+ suppressed the cathodic reaction, and PO 4 3− formed complex precipitation. Some high-valent metal oxides can directly oxidize the aniline polymerization to form MO@PANI hybrid particles. The cations obtained by the metal oxide reduction can be captured by PANI and participate in passivation together with dopants. This study provides a new kind of nanocomposite fillers that can effectively passivate steel substrates within epoxy coatings for long-time protection.
研究领域:
材料科学
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电化学
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产品关联
DOI
PubMed
高影响因子
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
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2024
·
IF 2.9
Chenxu Wang,Erlong Yang
In the process of oil and gas exploration, the corrosion of carbon steel pipes results in substantial economic losses, numerous casualties, environmental contamination, and resource waste. The advancement of highly efficient and stable corrosion inhibitors holds significant importance for protecting carbon steel from corrosion during oil and gas exploitation. In this study, two new cationic Gemini surfactants (2CncoesT, where n = 12, 14) were synthesized through a straightforward two-step reaction. Weight-loss tests demonstrated that the inhibition efficiency (ηw%) increases with the increase in temperature. Specifically, the maximum ηw% values for 2C12coesT and 2C14coesT were 98.0% and 98.3% respectively at 85 °C. The adsorption of these surfactants conformed to the Langmuir adsorption isotherm. Electrochemical measurements suggested that the two surfactants functioned as mixed-type inhibitors. The findings obtained from scanning electron microscopy (SEM) were consistent with the experimental outcomes that 2C12coesT and 2C14coesT are efficient corrosion inhibitors for the metal in an acidic environment. The quantum chemical investigation and molecular dynamics simulation (MD) further substantiated the experimental results and offered insights for a deeper comprehension of the inhibition mechanism of Gemini surfactants.
研究领域:
材料科学
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化学工程
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产品关联
DOI
PubMed
高影响因子
EUROPEAN JOURNAL OF LIPID SCIENCE AND TECHNOLOGY
·
2019
·Vol. 121
·期 11
·1900210
·
IF 1.852
Xiaohui Mao,Hailan Zhu,Zhong Zhao,Xiuzhu Yu
This study aims to explore the corrosion behavior of bitter almond oil (BAO) during processing. Hydrocyanic acid (HCN) and benzoic acid in oil are speculated as the main components that corrode the screw oil expeller. Immersion and simulation corrosion tests are carried out to verify this hypothesis. Immersion test results show that crude BAO (CBAO) containing 5.07 ± 0.06 mg kg −1 benzoic acid and 4.25 ± 0.04 mg kg −1 HCN exhibits corrosive effects on steel. Simulation corrosion test results indicate that the addition of CN − or benzoic acid has significant effect on the corrosion of steel. Specifically, at ≥1 × 10 4 mg kg −1 benzoic acid concentration or ≥5 mg kg −1 CN − concentration, the mass of steel blocks in oil decreases and the contents of Fe, Zn, Al, and Mg ions in oil increase significantly. Therefore, HCN in CBAO is the main cause of screw oil expeller corrosion in BAO processing and benzoic acid is the secondary cause. Practical Applications : The corrosion behavior of CBAO not only damages the integrity of the screw oil expeller but also increases the dissolution of toxic metals from the components into oil. The study of corrosion has practical value in taking effective measures, such as detoxification before pressing and addition of natural inhibitors, to reduce corrosion and ensure the quality of CBAO. Corrosion study provides the basis for the selection of steel materials of screw oil expeller.
研究领域:
食品科学
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材料科学
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化学工程
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产品关联
DOI
高影响因子
CORROSION SCIENCE
·
2015
·
IF 4.422
Zhe Zhang,Ningchen Tian,Lingzhi Zhang,Ling Wu
The self-assembled films of methionine and its derivatives were prepared on a 1045 carbon steel (CS) surface. EIS and potentiodynamic measurements showed that these films could effectively protect CS against corrosion in 0.5 M HCl, with a maximal protection efficiency of 95.01% achieved by FMOC films. An XPS study confirmed that methionine and its derivatives could form films by chemical adsorption on CS. The inhibition mechanism was theoretically investigated through the quantum chemical calculation and dynamic simulation.
研究领域:
材料科学
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电化学
·
量子化学
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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）