For the past decades, the scientific community has attempted to develop photocatalysts to obtain green hydrogen to diversify the current energy vectors, largely based on fossil fuels. In this context, many researchers have focused on modifying well-known photocatalysts such as TiO2 using other transition metals to boost photocatalytic activity in H2 production. However, powdered materials are difficult to reuse after prolonged exposure to liquid media in photocatalytic reactors. In this work, we have taken an alternative approach by developing structured catalysts based on TiO2 thin films and different Cu species. Photoluminescence analysis showed that incorporating Cu species on the TiO2 thin film decreases the e--h+ recombination rate. The photocatalytic activity of the nanostructured thin films is 298 µmol g−1 h−1 which is comparable to the reports described in the literature. Additionally, the thin films have simple and reproducible manufacturing, are easy to handle, are reusable and cost-effective. All these facts, make them a significantly more efficient technology than the counterpart powder materials.

In this investigation, the corrosion inhibition properties of an N-heteroaromatic containing compound 2-(4Methoxy-phenyl)-5-naphthalen-2-yl-[1,3,4]oxadiazole (MPNO), against mild steel (MS) in 1 M HCl using various analytical techniques have been examined. This study included weight-loss measurements at different temperatures (303-323 K), electrochemical analyses using Electrochemical Impedance Spectroscopy (EIS) and Potentiodynamic Polarization (PDP), and surface morphology investigations with Scanning Electron Microscopy (SEM). The experimental results demonstrated that MPNO exhibited excellent corrosion inhibition efficiency of 85.53% at a minimal 400 ppm inhibitor concentration with a mixed-type inhibition mechanism, as evidenced by the charge transfer resistance (RCT) value of 327.02 ohm. cm(2) derived from the EIS analysis. Additionally, the analysis of quantum chemical descriptors revealed E HOMO (-8.6335 eV), E-LUMO (-1.0277 eV), energy gap (Delta E = 7.60 eV), dipole moment (mu = 2.618 D), indicating inhibitor capability to acquire electrons and donate them to the metal's vacant d-orbitals, thus enhancing its adsorption activity and inhibitory properties. The density functional theory (DFT) computational studies complemented the experimental findings and provided a deeper understanding of the interaction modes between the inhibitors and the MS surface.

A convenient synthesis of a novel 1,3,4-oxadiazole derivative, specifically known as, 2-(5-methylthiophen-2-yl)-5-(pyridin-3-yl)-1,3,4-oxadiazole (MTPO), is reported along with a comprehensive evaluation of its ability to inhibit the corrosion of mild steel (MS) in a 1 N HCl environment using weight loss, EIS, PDP, SEM, EDX, and UV–Vis spectroscopy. The investigated inhibitor expressed excellent inhibition efficiency (99.05% at 500 ppm, 298 K) with a mixed-type inhibitory mechanism as demonstrated by the PDP technique. Furthermore, MTPO followed Langmuir adsorption isotherm, which provides insights into the adsorption phenomena, demonstrating that it exhibits superior adsorption behavior on the MS surface compared. In silico investigations, using DFT computation and MD simulation complements the experimental outcomes revealing strong adsorbing attributes of the MTPO hybrid with the ω − and ω + values of 8.8882 eV and 4.4787 eV, respectively. In addition, the radial distribution function also addressed the chemisorption behavior of MTPO. This article also takes into consideration the various ways in which the inhibitor interacts with the mild steel, offering potential insights for developing strategies to mitigate metal dissolution in acidic environments.

The research article comprehensively presents salient applications of an environment friendly chromone-thiazole hybrid (CTH) as a potential anticancer molecule and as an organic inhibitor against mild steel (MS) corrosion. The SRB assay used for antiproliferative screening gives excellent IC50 (10.8 μM) against MDA-MB-231 (breast cancer) cell line. Further, CTH has excellent inhibition efficacy (∼97 % at 400 ppm) against MS corrosion in 1 M HCl. The in vitro results of anticancer and anticorrosive evaluation are in good agreement with the computational studies, which include docking, ADME, DFT, MD simulation, and toxicity prediction.

The present study reports the synthesis and physico-chemical characterization of Mn1−xZnxFe2O4 (x = 0.5, 0.4, 0.3, 0.2, 0.1) nanoparticles-based magnetic fluids with reference to magnetic fluid hyperthermia. The properties of these fluids are studied using XRD, FTIR, TGA, VSM and the induction heating equipment operated at 330 kHz. The heating response of the fluids is investigated within the safety limit of H·f (4.8 *108 A/m-s). The study is also extended to simulate it for the agarose gel phantom system. The power absorption by these samples in distilled water and in agarose gel is calculated to compare with the experimentally observed value. To the best of the author's knowledge, no study of temperature sensitive magnetic fluid is reported on agarose gel, which simulates or phantom an in vivo condition. Results analysis show that the control of hyperthermia temperature is possible at lower fields and frequencies for the A91 sample with the smallest possible concentration, which can be acceptable for in vitro study.

This research article presents a comprehensive investigation into the corrosion inhibition performance of a 1,2,3-triazole-based hybrid (TCA) with incorporated triazole, chalcone, and amide moieties. The amalgamation of these pharmacologically active moieties synergistically enhances the ability of the TCA hybrid to form protective films on metal surfaces. The study employs a combination of experimental and theoretical methods to assess the corrosion inhibition properties. Multiple sophisticated techniques like weight loss, EIS, PDP, SEM, EDX, and UV–Vis spectroscopy reveals TCA's exceptional inhibitory efficiency (∼99 % at 200 ppm) for mild steel (MS). PDP analysis suggests a mixed-type inhibition mechanism. The experimental findings are further supported by the DFT calculations by exploring the interactions between the inhibitor and mild steel (MS). The remarkable corrosion inhibition efficacy of TCA along with its eco-friendly behavior aligns the present work with the growing global emphasis on sustainability.