Preparation and characterization of CQDs/SBS composites and its application performance as asphalt modifier

Zhao, Ping; Song, Xiaoqing; Dong, Mingliang; Sun, Huajun; Wu, Wenxin; Zhang, Rui; Sun, Mingbo; Zhao, Xingchi

doi:10.1016/j.conbuildmat.2022.126312

Cited by 14 publications

(9 citation statements)

References 28 publications

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“…The blank solution was 1.0 M hydrochloric acid as an aggressive medium. DDW was utilized to prepare the blank sample and other required solutions with multiple LCQD concentrations (1,5,10,15,25,50,75, 100, and 175 mg/L).…”

Section: Methodsmentioning

confidence: 99%

“…Moreover, CQDs have been fabricated from several raw materials including several precursors such as carboxylic acids as citric acid, carbohydrate, sugars, and carbohydrate polymers. , Additionally, various natural resources have been recently employed in CQD synthesis as denatured milk, dried leaf, broccoli, food waste, Ginkgo leaf, grass, and gelatin . Several recent review articles have been published to report the applications of CQDs in various fields. − Moreover, significant efforts have been recently devoted to implementing QD materials and their composites in water treatment from emerging pollutants via adsorption, − catalytic degradation, , drug delivery systems, − and others. , …”

Section: Introductionmentioning

confidence: 99%

“…11−15 Moreover, significant efforts have been recently devoted to implementing QD materials and their composites in water treatment from emerging pollutants via adsorption, 16−18 catalytic degradation, 19,20 drug delivery systems, 21−23 and others. 24,25 CQDs have recently attracted a lot of attention in the field of corrosion protection as powerful green inhibitors for corrosion control. 26 For example, two types of nitrogen containing CQDs (N-CQDs) were fabricated from o-phenylenediamine and pphenylenediamine to evaluate their efficiency for carbon steel corrosion prevention and theses referred to 81.9% and 83.1% at 200 mg/L, respectively.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effective Performance of Derived Sustainable Lupine Carbon Quantum Dots as a Superior Inhibitor Material for Carbon Steel Corrosion in a Hydrochloric Acidic Environment (1.0 Molar)

Abd-El-Nabey,

Mahmoud,

Abdelrahman

et al. 2024

Ind. Eng. Chem. Res.

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Carbon and graphene-based quantum dots have recently emerged as highly valuable and widely applicable materials based on their low particle sizes (1−10 nm). The incorporated oxygen, nitrogen, and carbon functional groups can significantly enhance the binding capabilities of these materials to various surfaces. In this study, lupine seeds were employed to produce a sustainable and novel material known as lupine carbon quantum dots (LCQDs), by using a straightforward and green microwave hydrothermal reaction. The assembled LCQD material was characterized by several instrumentations such as FTIR, TEM, EDX, XRD, UV−vis, and XPS to confirm the various incorporated functionalities, morphology/particle size, elemental composition, amorphous structure, transition types, and various bonds, respectively. LCQD material was explored to investigate and assess the corrosion prevention performance by various approaches via electrochemical impedance spectroscopy (EIS), potentiodynamic polarization, and mass loss techniques. The prepared LCQDs reflected an 89.3% maximum inhibitory effectiveness for carbon steel corrosion upon using 175 mg/L LCQDs in a 1.0 M HCl environment at 40 °C. The EDX, XRD, and XPS techniques were used to confirm the effectiveness of LCQDs in protection of the carbon steel surface and discuss the corrosion inhibition mechanism. The LCQD adsorption mechanism onto carbon steel was also explored by Langmuir and Flory−Huggins isotherms, besides the kinetic−thermodynamic model, to fit the outcomes from the experimental data. The findings revealed that these models were applicable, giving ΔG o ads of −31 kJ/mol, while the adsorption mechanism was correlated to a physical/chemical process. Finally, the outcomes of this study refer to the potential capability of LCQD materials as sustainable corrosion inhibitors without any additional modification via doping or modification with other chemical compounds or materials.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effective Performance of Derived Sustainable Lupine Carbon Quantum Dots as a Superior Inhibitor Material for Carbon Steel Corrosion in a Hydrochloric Acidic Environment (1.0 Molar)

Abd-El-Nabey,

Mahmoud,

Abdelrahman

et al. 2024

Ind. Eng. Chem. Res.

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“…Carbon quantum dots (CQDs) are trendy zero-dimensional carbon nanomaterials with numerous advantages, including extremely small particle size, low toxicity, excellent water dispersion, great biocompatibility, high chemical stability, and exceptional upconversion luminescence properties, which are widely used in various fields. [121][122][123] Furthermore, compared with other nanomaterials, the surface of CQDs contains abundant carboxyl and hydroxyl groups, whereas the surface of nitrogen-doped CQDs contains a large number of amino and hydroxyl groups, which may lead to some physical or chemical reactions between CQDs and BiOX, resulting in a synergistic effect. Qi et al utilized a simple ion-etching strategy to prepare a p-n heterojunction BiO 2−x /BiOCl modified by N-doped biomass CQDs (N-CQDs).…”

Section: Biomaterials Science Reviewmentioning

confidence: 99%

Recent developments in bismuth oxyhalide-based functional nanomaterials for biomedical applications

Chen

Miao

et al. 2022

Biomater. Sci.

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“…XSP-63XD FM from Batuo China was used to observe the microscopic phase behavior of the modifier in the HVA [30]. Polymers can fluoresce under various light sources, so the dispersion of polymers in asphalt can be observed by FM.…”

Section: Microstructure Testmentioning

confidence: 99%

Preparation of Waste-LDPE/SBS Composite High-Viscosity Modifier and Its Effect on the Rheological Properties and Microstructure of Asphalt

Jin

Liang

et al. 2022

Polymers

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To reduce the cost of high-viscosity modifier (HVM) and alleviate white pollution problems, we prepared the environment-friendly HVM (E-HVM) by using waste-low density polyethylene/styrene-butadiene-styrene (waste-LDPE/SBS) composite. The physical characteristics of the E-HVM modifier were first investigated. Additionally, the effects of E-HVM modifier dosage (8 wt% to 20 wt%) on the rheological properties and microstructure of asphalt were, respectively, researched by dynamic shear rheometer (DSR), bending beam rheometer (BBR), and fluorescence microscopy (FM). The results show that the E-HVM modifier has lower molecular weight, and its distribution is wider than that of the Tafpack-Super (TPS) modifier; thus, the E-HVM modifier had better compatibility with asphalt, which has also been proven by FM images. Due to these reasons, the E-HVM modifier improves the high-temperature performances of asphalt more effectively than the TPS modifier, which is shown by the higher dynamic viscosity (60 °C) and G* and the lower and Jnr (τ). Furthermore, compared to TPS modified asphalt, E-HVM modified asphalt also has a higher fatigue life at different strain levels (2.5% and 5.0%), but worse low-temperature performance. Following a comprehensive consideration of performances, the reasonable dosage range of E-HVM modifier is 12 wt% to 16 wt%.

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Preparation and characterization of CQDs/SBS composites and its application performance as asphalt modifier

Cited by 14 publications

References 28 publications

Effective Performance of Derived Sustainable Lupine Carbon Quantum Dots as a Superior Inhibitor Material for Carbon Steel Corrosion in a Hydrochloric Acidic Environment (1.0 Molar)

Effective Performance of Derived Sustainable Lupine Carbon Quantum Dots as a Superior Inhibitor Material for Carbon Steel Corrosion in a Hydrochloric Acidic Environment (1.0 Molar)

Recent developments in bismuth oxyhalide-based functional nanomaterials for biomedical applications

Preparation of Waste-LDPE/SBS Composite High-Viscosity Modifier and Its Effect on the Rheological Properties and Microstructure of Asphalt

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