JOURNAL OF MATERIALS SCIENCE
·
2019
·Vol. 55
·期 10
·4358-4371
·
IF 3.442
Zhu Zhi,Ma Changchang,Yu Kesheng,Lu Ziyang,Liu Zhi,Yan Yongsheng,Tang Xu,Huo Pengwei
It is still a challenging work to realize the universality of photocatalytic materials for unselectively removing environmental pollutants in water. Here, a ternary magnetism CoFe 2 O 4 /g-C 3 N 4 /HNTs heterojunction photocatalyst is firstly prepared, and the morphology, crystalline property, surface area, and magnetic recycling capability of the photocatalyst were investigated. The CoFe 2 O 4 /g-C 3 N 4 /HNTs shows a superior degradation efficiency for degrading 2-mercaptobenzothiazole (MBT) than that of pure g-C 3 N 4 . The high degradation performance that derives from the hollow structure of halloysite nanotubes (HNTs) can inhibit stacking of g-C 3 N 4 , which results in a larger specific surface area and more abundant reaction sites. Meanwhile, the heterojunction structure between g-C 3 N 4 and CoFe 2 O 4 improved the separation efficiency of charge carriers. In addition, the intermediate products, degradation pathway, and reaction mechanism of representative MBT pollutant over the CoFe 2 O 4 /g-C 3 N 4 /HNTs photocatalyst are revealed in depth. This work makes an important development.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Xin Liu,Xuexue Xu,Yifan Lv,Sheng Wu,Xuerong Zheng,Yujie Qiang,Zhiyang Zhang
Hollow porous Fe 3 O 4 microspheres were prepared by citrate-assisted solvothermal method and used as nanocarrier , and then the 2-Mercaptobenzothiazole (MBT) inhibitor was encapsulated into the interior of Fe 3 O 4 nanoparticles via vacuum negative pressure method. The results show that the obtained Fe 3 O 4 @MBT nanocomposite inhibitor has a MBT loading capacity of 13.831 % and saturation magnetization of 68.7 emu·g −1 . Release study reveals the release of MBT inhibitor from the nanocomposites is mainly Fickian diffusion and diffusion among magnetic particles. The external magnetic field (MF) would effectively delay the release of inhibitor by increasing diffusion difficulty among magnetic particles. Additionally, the Fe 3 O 4 @MBT has an excellent inhibition effect for carbon steel , and the inhibition behavior can be regulated by MF .
研究领域:
材料科学
·
腐蚀与防护
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2020
·
IF 3.99
Xin Liu,Jihui Wang,Wenbin Hu
The hollow Fe 3 O 4 microspheres were firstly synthesized by solvothermal method. And then Fe 3 O 4 /MBT nanocomposite inhibitor was obtained by loading 2-mercaptobenzothiazole (MBT) inhibitor under negative vacuum impregnation treatment and characterized using transmission electron microscopy , X-ray diffraction, Fourier transform infrared spectroscopy , nitrogen adsorption-desorption isotherms and vibrating sample magnetometer . The release behavior of MBT and inhibition behavior of Fe 3 O 4 /MBT nanocomposite under different magnetic field (MF) strength were evaluated by UV–vis spectroscopy, electrochemical techniques and immersion tests. The results show that the synthesized superparamagnetic Fe 3 O 4 /MBT nanocomposite shows high MBT loading capacity of 55.4 %. Under the application of MF, the release behavior of MBT from Fe 3 O 4 /MBT is dominated by Fickian diffusion and diffusion among magnetic nanoparticles , and the release rate and inhibition efficiency are less than that of without MF under the same release time. The nanocomposite has a good inhibition effect for carbon steel in NaCl solution with maximum inhibition efficiency of 95.7 %, and also possesses excellent recycling stability with loading capacity of 45.1 % and inhibition efficiency of 78.8 % after five cycles.
研究领域:
材料科学
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电化学
·
腐蚀与防护
✓ 已验证
DOI
高影响因子
APPLIED CLAY SCIENCE
·
2024
·
IF 5.3
Xin Liu,Xuexue Xu,Qiushi Li,Wenjia Wang,Yifan Lv,Yujie Qiang,Sheng Wu
The core-shell structural Fe 3 O 4 @MBT-LDH was synthesized via the ion exchange method, with MBT (2-mercaptobenzothiazole) inhibitor ions intercalated lamellar ZnAlCe-LDH attaching closely to the Fe 3 O 4 microspheres surface. The morphology, composition, structure, and magnetic properties of the composite were measured by transmission electron microscope, X-ray diffraction, Fourier transform infrared spectra, and vibrating sample magnetometer . The release behavior of MBT ions and corrosion inhibition performance of the Fe 3 O 4 @MBT-LDH under “no MF” (without an external magnetic field) and “MF ON” modes (under an external magnetic field) were measured by UV–vis spectroscopy, electrochemical tests, scanning electron microscopy, and X-ray photoelectron spectrometer (XPS). Calcinating the composite after the release test and redispersing the sintered products in MBT ions-containing solution, the composite was reestablished. Results showed that the Fe 3 O 4 @MBT-LDH possessed moderate MBT loadings amount (12.0%) and presented strong superparamagnetic properties with saturation magnetization ( M s) of 27.6 emu⋅g −1 . The release behavior of the MBT − from the composite was sustainable and could be further slowed down by using an external magnetic field with changing the release mechanism. The release curve reached equilibrium with a longer time of 48 h and a lower release amount of 57.0% under MF ON mode than that of no MF mode with a time of 7 h and a release amount of 74.7%. The Fe 3 O 4 @MBT-LDH owned a good and long-term protection performance for Q235 carbon steel with maximum corrosion inhibition efficiency ( η e ) of up to 93.30%. As a promising controlled-release inhibitor, it could be recycled and regenerated by simple treatment, still having high η e higher than 80% and excellent magnetic properties with M s of 21.47 emu⋅g −1 after five cycles. The corrosion mechanism for carbon steel was further analyzed by quantum chemical calculations and molecular dynamics simulation.
研究领域:
材料科学
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电化学
·
腐蚀与防护
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Zhengyong Song,Shuming Wen,Qian Zhang,Zhihao Shen,Guang Han,Qicheng Feng
Combined collectors are widely used in mineral flotation. However, in the field of copper oxide mineral flotation, theoretical research on combined collectors is relatively scarce, especially the combination of chelating agents and xanthates. Herein, this study systematically investigated the flotation performance and related potential adsorption chemical essence of sodium butyl xanthate (SBX), 2-mercaptobenzothiazole (MBT), and their combined collectors on sulfidized azurite. Micro-flotation results demonstrated that the low-dosage combination collector system of SBX/MBT can effectively improve the flotation recovery of sulfidized azurite. Surface tension results indicated that the combined collectors had higher surface activity than the single collector, thus exhibiting better foam stability. LEIS, SEM-EDS and contact angles analysis demonstrated that compared with single collector, the combined collectors could adsorb more uniformly on the surface of sulfidized azurite, effectively improving its hydrophobicity. ToF-SIMS and XPS further demonstrated that MBT adsorbed on azurite by bonding its S and N atoms with Cu atoms of sulfidized azurite to form the surface MBT-Cu complexes. Combined with the results of adsorption capacity tests, further analysis indicated that the combined collectors of SBX and MBT may have achieved co-adsorption by forming a mixed-ligand complex on the surface of sulfidized azurite, which enhanced the adsorption density and stability of the collector on the surface of sulfidized azurite.
研究领域:
矿物加工
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表面化学
·
浮选化学
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材料科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Yan Shi,Yang Zhang,Chengping Miao,Jianxing Yu,Xiaohua Tu,Jiayou Li
Plasma electrolytic oxidation (PEO) coatings with long-lasting active protection were prepared by incorporating 2-mercaptobenzothiazole (MBT)-loaded halloysite nanotubes (HNTs), followed by introduced insoluble Cu-MBT complex, has been achieved in present study. To further compare and analyze the corrosion characteristics of the sample, different halloysite nanotubes (HNTs, MBT@HNTs) profiles were also added to the electrolytes for the preparation of different oxide films (HNTs-PEO and MBT-HNTs-PEO). The coatings were characterized by scanning electron microscopy (SEM), film thickness meter, roughness meter, energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD). The corrosion behavior was evaluated by electrochemical impedance spectroscopy (EIS), and open circuit potential (OCP) tests. The results show that the long-term corrosion resistance of magnesium alloys can be improved by adding Cu - MBT-HNTs owning to the self-healing effect.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2025
·
IF 14.3
Huiling Su,Zhikun Wang,Jianqiang Zhang,Nannan Cui,Fengting Li,Miantuo Li,Wentao Qu,Xupeng Li,Jiaqi Feng,Songqing Hu
Responsive nanocontainers have dual functions in targeted delivery of corrosion inhibitors and emulsion development of shale oil in oil and gas fields, exhibiting potential for simultaneously achieving metal protection and efficient oil and gas development from a material perspective. Here, we propose the preparation of a pH-responsive nanocontainer, HMSNs- g -PDEAEMA (poly [2-(N, N-diethyl amino)-ethyl-methacrylate] (PDEAEMA) grafted onto hollow mesoporous spherical silica (HMSNs)), to integrate the delivery of 2-mercaptobenzothiazole (MBT)) for targeted corrosion inhibition and the emulsification of oil as Pickering emulsifiers. Under acidic conditions (reduced pH value caused by localized corrosion or high concentration acidic gases), PDEAEMA chains are protonated and extended by electrostatic repulsion, exposing pores on HMSNs surface and allowing the controlled release of loaded MBT molecules. Once transforming into a neutral or alkaline environment, the responsive release of the MBT process is inhibited. After the fluid passes through the wellbore and enters the shale layer, the HMSNs- g -PDEAEMA nanocontainers act as Pickering emulsifiers to achieve emulsification. The emulsified oil can be extracted onto the ground more efficiently, and a following pH-responsive demulsification process can be achieved. Overall, through a pH-responsive nanocontainer material, the dual function of corrosion inhibition and emulsification in oil and gas development is possible to be simultaneously achieved.
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 RESEARCH BULLETIN
·
2022
·
IF 5.6
Xiuna Yu,Zhixiang Liu,Zhi Zhu,Hongyu Luo
A nonmetal two-dimensional carbon nitride (2D-CN) with different thickness is constructed via the facile hydrothermal (adjusting the solution pH to 4.0, 7.0 and 10.0) and calcination method. The 2D-CN-7.0 displays the dramatically enhanced photocatalytic activity (82%) for degrading 2-mercaptobenzothiazole (MBT), originating from the ultrathin 2D structural improved transfer efficiency of charge carriers, greatly decrease the diffusion path of electrons/holes to MBT, accelerating the reaction rate. More importantly, we find that there are no rules can be followed between the band gap and the thickness of CN by density functional theory (DFT) computation theoretically and experimentally. Also, the possible mechanism for the enhancement of photocatalytic performance, the degradation pathway of MBT, photogenerated carrier transfer behaviors are also discussed in depth. This research provides a new strategy to control the thickness of CN to improve photocatalytic activity.
研究领域:
材料科学
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环境科学
·
理论化学
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Xin Liu,Lu Jiang,Qiushi Li,Yan Dong,Yifan Lv,XinYi Li,LongXu Liu
Corrosion of carbon steel can result in serious damage, limiting its application in various fields. Considerable protective coatings have been proposed, but they are limited by difficulties in repairing and early warning of coating damage and local metal corrosion. Herein, a dual-functional smart anti-corrosion coating with integrated self-healing and self-warning capabilities was designed and fabricated. Firstly, the MBT + CVL@Fe 3 O 4 composite was prepared by loading corrosion inhibitor 2-mercaptobenzothiazole (MBT) and fluorescent probe crystal violet lactone (CVL) into mesoporous Fe 3 O 4 microspheres. The system demonstrated a stimulus-responsive release of MBT, providing effective corrosion inhibition for Q235 steel. Subsequently, the MBT + CVL@Fe 3 O 4 composite was incorporated as a functional filler into a shape memory epoxy (EP) coating. The results showed that the optimum addition amount of filler was 2 wt% because the MBT + CVL@Fe 3 O 4( 2% ) /EP coating presented the smoother surface, maximum water contact angle, and impedance value under damaged conditions. Based on the photothermal effect of Fe 3 O 4 -based filler combined with the shape memory effect of epoxy resin, when irradiated for 60 s, the surface temperature of the scratched MBT + CVL@Fe 3 O 4( 2% ) /EP was about 55 °C, exceeding its glass transition temperature ( T g ≈ 49.5 °C). Consequently, the scratch width was markedly reduced, demonstrating effective self-healing of the external coating damage. Moreover, when the coating damage even caused local corrosion of the metal substrate and changes in the pH of the corroded area, the corrosion inhibitor MBT was responsively released, forming a protective film layer to protect the metal substrate from further degradation. The low-frequency impedance |Z| 0.01 Hz values of scratched pure epoxy coating (EP), scratched MBT + CVL@Fe 3 O 4( 2% ) /EP and photothermal healed scratched MBT + CVL@Fe 3 O 4( 2% ) /EP immersed in 3.5 % NaCl solution for 120 h were 4.98 × 10 4 Ω·cm 2 , 4.78 × 10 5 Ω·cm 2 and 1.31 × 10 6 Ω·cm 2 , respectively, which fully illustrated the dual repair function of the coating. Additionally, the CVL loaded in the filler provided the fluorescence color rendering performance of the coating. Under the irradiation of an ultraviolet lamp, the bright blue fluorescence signal can be displayed at the coating damage site, effectively predicting the coating damage. Moreover, CVL can produce fluorescence quenching when localized corrosion occurs on the metal substrate, warning of early corrosion. These results prove the self-warning performance of the anti-corrosive coating.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2018
·Vol. 53
·期 10
·7793-7808
·
IF 2.993
Dong Chundong,Zhang Manxin,Xiang Tengfei,Yang Ling,Chan Wenming,Li Cheng
This work creatively utilized the pH-dependent electrostatic interactions between L-valine (L-Val) and halloysite nanotubes (HNTs) to fabricate pH-responsive anticorrosion materials and compared with 2-mercaptobenzothiazole (MBT)-loaded HNTs, which were assembled via layer-by-layer (LbL) self-assembly. These two methods can achieve controlled release of inhibitors and self-healing performance. However, the loading capacity of L-Val-loaded HNTs is higher than that of MBT’s. There are 12 and 7 wt%, respectively. The pH-responsive release property was systematically evaluated by ultraviolet–visible (UV/Vis) spectrophotometry measurement. It demonstrates that 98% of adsorbed L-Val molecules released from HNTs within 300 min at pH 10 while the loaded MBT needs 120 h to achieve the equal ratio. Moreover, the difference of the release rate has a significant impact on the artificial crossed scratch experiment and shows a great performance gap in photographs. By comparing electrochemical impedance spectroscopy (EIS) data of three epoxy coatings, it can be seen that the epoxy coating, which was mixed with L-Val-loaded HNTs, shows a better anticorrosion ability than the epoxy coating contains MBT-loaded HNTs after immersion in 3.5 wt% sodium chloride solution for 96 h. Crucially, the pH-responsive anticorrosion material we fabricated can offer a rapid self-healing performance when the coating damaged by mechanical scratch via visual test and atomic absorption spectroscopy.
研究领域:
材料科学
·
化学工程
·
腐蚀科学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
TRIBOLOGY INTERNATIONAL
·
2025
·
IF 6.9
Guangkai Jin,Bin Liu,Tiantian Wang,Shenghua Xue,Shujuan Liu,Qian Ye
As environmental concerns grow, water has emerged as a recyclable and renewable eco-friendly lubricant with distinct advantages. However, the severe corrosion of friction pairs induced by water-based lubrication hinders its broader application. This study presents a strategy for preparing mercaptobenzothiazole-functionalized carbon dots (N,S-CDs(MBT)) by a one-step hydroxyl-alkylation as water-based lubricant additives. At a concentration of 1.0 wt%, these additives reduce the coefficient of friction by 80.6 % (from 0.474 to 0.092) and the wear volume from 29.81 × 10 5 μm 3 to 7.65 × 10 5 μm 3 . This performance is attributed to the synergistic effect of tribological protective films, amorphous carbon films, and stable hydration layers formed on the friction pairs. Furthermore, N,S-CDs(MBT) efficiently suppress surface corrosion, reducing corrosion current density ( i corr ) by two orders of magnitude when added at 500 mg/L, achieving a corrosion inhibition efficiency up to 98.7 %. This approach effectively mitigates corrosion issues in water-based lubrication, promoting environmental sustainability and industrial application.
✓ 已验证
产品关联
DOI
高影响因子
Corrosion Communications
·
2022
·
IF 0
Jinke Wang,Shanghao Wu,Lingwei Ma,Bing Zhao,Haowen Xu,Xiaolun Ding,Dawei Zhang
This work synthesized novel Fe 3 O 4 nanoparticles loaded with 2-mercaptobenzothiazole corrosion inhibitors (Fe 3 O 4 -MBT NPs), which possessed not only photothermal conversion property but also corrosion inhibition ability. The loading percentage of MBT inhibitors in the Fe 3 O 4 -MBT NPs was 9.69 wt.%. The obtained Fe 3 O 4 -MBT NPs were incorporated into a shape memory epoxy coating to achieve passive protection and self-healing property. The passive protection property of intact Fe 3 O 4 -MBT/epoxy coating was assessed using electrochemical impedance spectroscopy (EIS) measurement during immersion in 3.5 wt.% NaCl solution. The low-frequency impedance modulus at 0.01 Hz of the composite coating containing 3 wt.% Fe 3 O 4 -MBT NPs was approximately 5 times higher than that of the blank epoxy coating after 240 h of immersion, indicating the superior barrier property of the composite coating. As for the self-healing property, the scratch width on the coating surface could narrow from 80 µm to ∼5 µm after near-infrared (NIR) light irradiation for 30 s, which was ascribed to the excellent photothermal conversion property of Fe 3 O 4 NPs. EIS results verified that both the scratch closure triggered by the photothermal conversion of Fe 3 O 4 NP and the release of MBT inhibitors are beneficial for the suppression of corrosion activity within the coating scratch. The Fe 3 O 4 -MBT/epoxy coating with outstanding passive protection and self-healing property holds great potential to achieve long-term corrosion protection.
研究领域:
材料科学
·
表面工程
·
电化学
·
纳米技术
✓ 已验证
DOI
危险品化学品经营许可证（带存储）