Several mechanisms in industrial use have significant applications in thermal transportation. The inclusion of hybrid nanoparticles in different mixtures has been studied extensively by researchers due to their wide applications. This report discusses the flow of Powell–Eyring fluid mixed with hybrid nanoparticles over a melting parabolic stretched surface. Flow rheology expressions have been derived under boundary layer theory. Afterwards, similarity transformation has been applied to convert PDEs into associated ODEs. These transformed ODEs have been solved the using finite element procedure (FEP) in the symbolic computational package MAPLE 18.0. The applicability and effectiveness of FEM are presented by addressing grid independent analysis. The reliability of FEM is presented by computing the surface drag force and heat transportation coefficient. The used methodology is highly effective and it can be easily implemented in MAPLE 18.0 for other highly nonlinear problems. It is observed that the thermal profile varies directly with the magnetic parameter, and the opposite trend is recorded for the Prandtl number.
The efficient and low-cost adsorption of arsenic toxins from drinking water is a global concern because of its adverse health effects. The simple extraction and eco-friendly environmental waste management of arsenic(V) species using hierarchy rutile TiO 2 were reported. Mesoporous microscale TiO 2 sphere 3D monoliths were successfully fabricated with uniform mesopores morphology-like blobfish head containing open nanoscale eyes through hydrothermal one-pot synthesis. The blobfish head TiO 2 (BHT) was mainly oriented along the predominant {110} facet and with dense top-surface atomic Ti 4+ and O 2− sites along the crystal edge surface and central crystals. These characteristics lead to efficient adsorption and selective binding to As(V) species in acidic medium. The photoinduced irradiation of the BHT adsorbent promoted significant trapping and high adsorptivity, with a maximum capacity reaching 125 mg/g from drinking water. The BHT adsorbent selectively binds As(V) species among competitive anions, such as chlorides, bicarbonates, and sulfates, as well as cations, such as Ca 2+ , Mg 2+ , Co 2+ , Al 3+ , Ni 2+ , Cd 2+ , Mn 2+ , and Fe 3+ cations, in real samples. Results indicated that the BHT hierarchy can be cycled several times without deteriorating in its significant performances despite the severe treatment under irradiation or chemical treatment agents. The BHT monoliths might be an effective photoadsorbent for final disposals, particularly at low levels of As(V) species in real water sources.
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