Thermal stability and plasmonic photothermal conversion of surface-modified solar nanofluids: Comparing prolonged and cyclic thermal treatments

Sharaf, Omar Z.; Rizk, Nahla; Munro, Catherine J.; Joshi, Chakra P.; Waheed, Waqas; Abu‐Nada, Eiyad; Alazzam, Anas; Martin, Matthew N.

doi:10.1016/j.enconman.2021.114463

Cited by 26 publications

(6 citation statements)

References 86 publications

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“…The wettability and permeability of the as-prepared electrospun nano-fiber membranes on diesel fuel were characterized using an L2004A1 Ossila contact angle analyzer with a measurement accuracy of ±1°. In order to reduce the influence of the surface roughness and gravity effect while improving the measurement accuracy of the contact angle, a 5 µL droplet of deionized diesel oil was deposited on the nano-fiber membrane surface [ 30 ]. A high pixel camera (1920 × 1080) was used to capture images of dripping fuel droplets.…”

Section: Methodsmentioning

confidence: 99%

Synthesis of Polyvinyl Alcohol/Coal Fly Ash Hybrid Nano-Fiber Membranes for Adsorption of Heavy Metals in Diesel Fuel

et al. 2023

Nanomaterials

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Some studies have shown that the heavy metal emissions (HMEs) emitted from diesel engines can seriously threaten human health. HMEs are mainly related to the content of heavy metal ions in diesel fuel. Therefore, in order to reduce HMEs from diesel engines, a nano-fiber membrane filtration technology for diesel fuel was investigated. Herein, coal fly ash (CFA) from coal-fired power plants combined with polyvinyl alcohol (PVA) was successfully fabricated into nano-fibrous membranes using green electrospinning technology. In order to evaluate the adsorption properties, various hybrid membranes with different mixing ratios (PVA/CFA = 10/0, 10/1, 10/3, 10/5, and 10/7 by weight) were fabricated. The results show that eight metal ions with different concentrations are found in the diesel fuel, including Pb, Cu, Zn, Al, Fe, Cr, Ba, and Ni. All PVA/FA membranes have different adsorption capacities for metal ions, following the order: Cu > Fe > Pb > Al > Zn > Cr > Ba > Ni. In addition, the adsorption capacity of CFA3 (PVA/CFA = 10/3) is the largest. The super lipophilicity of the PVA/FA membranes also provide more adsorption sites for the contact of HMs with the membranes. The above research results provide guidance for development of ultra-fine filters in the future.

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Section: Methodsmentioning

confidence: 99%

Synthesis of Polyvinyl Alcohol/Coal Fly Ash Hybrid Nano-Fiber Membranes for Adsorption of Heavy Metals in Diesel Fuel

et al. 2023

Nanomaterials

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“…However, the coating will degrade during the solar absorbing process, causing damage to the environment . Recently, the nanofluid-based direct absorption solar collector (DASC) has been considered to be an important alternative method to improve the efficiency of solar thermal utilization. − Its heat collecting fluid is not only the working medium for absorbing and converting solar energy but also has the heat transfer function, reducing the heat loss and increasing the rational use of heat energy. The scientists focus on maximizing the conversion of light energy into heat energy in the DASC.…”

Section: Introductionmentioning

confidence: 99%

Electrostatically Assisted Construction Modified MXene-IL-Based Nanofluids for Photothermal Conversion

Xie

et al. 2023

ACS Appl. Mater. Interfaces

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Solar energy, as renewable energy, has paid extensive attention for solar thermal utilization due to its unique characteristics such as rich resources, easy access, clean, and pollution-free. Among them, solar thermal utilization is the most extensive one. Nanofluid-based direct absorption solar collectors (DASCs), as an important alternative method, can further improve the solar thermal efficiency. Notably, the stability of photothermal conversion materials and flowing media is critical to the performance of DASC. Herein, we first proposed novel Ti3C2T x -IL-based nanofluids by the electrostatic interaction, which consists of functional Ti3C2T x modified with PDA and PEI as a photothermal conversion material and ionic liquid with low viscosity as the flow medium. Ti3C2T x -IL-based nanofluids exhibit excellent cycle stability, wide spectrum, and efficient solar energy absorption performance. Besides, Ti3C2T x -IL-based nanofluids maintain liquid state in a range of −80 to 200 °C, and its viscosity was as low as 0.3 Pa·s at 0 °C. Moreover, the equilibrium temperature of Ti3C2T x @PDA-IL at a very low mass fraction of 0.04% reached 73.9 °C under 1 Sun, indicating an excellent photothermal conversion performance. Furthermore, the application of nanofluids in photosensitive inks has been preliminarily explored, which is expected to play a role in the fields of injectable biomedical materials and photo/electric double-generation thermal and hydrophobic anti ice coatings.

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“…Its validity has been confirmed in improving heat transmission in many industrial applications. [1][2][3][4] Nanofluids are a distinct class of fluids with many potential uses, such as heat exchangers, solar collectors, and cooling and heating applications.…”

Section: Introductionmentioning

confidence: 99%

“…A new type of working fluid, known as nanofluid, can be produced by suspending solid nanoparticles in the base fluid. Its validity has been confirmed in improving heat transmission in many industrial applications 1–4 . Nanofluids are a distinct class of fluids with many potential uses, such as heat exchangers, solar collectors, and cooling and heating applications.…”

Section: Introductionmentioning

confidence: 99%

Prediction of hybrid nanofluids behavior and entropy generation during the cooling of an electronic chip using the Lagrangian–Eulerian approach

Korei

Louali

2022

Heat Trans

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Thermal stability and plasmonic photothermal conversion of surface-modified solar nanofluids: Comparing prolonged and cyclic thermal treatments

Cited by 26 publications

References 86 publications

Synthesis of Polyvinyl Alcohol/Coal Fly Ash Hybrid Nano-Fiber Membranes for Adsorption of Heavy Metals in Diesel Fuel

Synthesis of Polyvinyl Alcohol/Coal Fly Ash Hybrid Nano-Fiber Membranes for Adsorption of Heavy Metals in Diesel Fuel

Electrostatically Assisted Construction Modified MXene-IL-Based Nanofluids for Photothermal Conversion

Prediction of hybrid nanofluids behavior and entropy generation during the cooling of an electronic chip using the Lagrangian–Eulerian approach

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