Iron oxide chemistry and applications

Platinum (Pt) is generally used as the counter electrode material in dye-sensitized solar cells (DSSCs). However, due to its low chemical stability, limited natural reserves, and high cost, platinum negatively impacts the environmental durability of DSSCs and increases production costs, limiting the widespread use of…

This study investigates the influence of two calamitic liquid crystals exhibiting distinct mesophase structures (nematic LC1 and chiral smectic C* LC2) as functional additives in a commercial iodide/triiodide electrolyte for dye-sensitized solar cells (DSSCs). Rather than targeting state-of-the-art efficiencies, the o…

The presence of methylene blue (MB) in textile effluents poses significant environmental and public health risks. Therefore, this study aimed to develop a giant grass biochar magnetite graphitic carbon nitride (BC-Fe₃O₄-g-C₃N₄) composite adsorbent via a co-precipitation method for the effective removal of MB from aque…

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In this study, a fully coupled three-dimensional multiphysics CFD model of a photoelectrochemical (PEC) water splitting cell incorporating a ZnO/BiVO4 photoanode was developed using COMSOL Multiphysics® 6.1. The model integrates semiconductor charge transport, ionic transport (diffusion, migration, and convection), el…

Oxidizing Fe-doped BaTiO3 is commonly expected to convert substitutional Fe3+ acceptors into formal Fe4+ centers. However, the experimentally accessible picture based on electron paramagnetic resonance (EPR) is dominated by Fe3+-related signatures, while Fe4+ is not a straightforward observable. Here, we show that thi…

The objective of this study is twofold: firstly, to ascertain the weathering rates of inceptisol soils formed on different geological parent materials under identical climatic conditions; and secondly, to examine the effects of the parent material on soil formation. The present study was conducted with the objective o…

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The karst-type bauxite deposits located in southwestern Türkiye represent the most significant bauxite resources in the country. Surrounding these bauxite deposits are widespread red soil deposits of varying sizes, developed over lithologically diverse rocks. This study aims to investigate the origin of these red soil…

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Flooding and farmyard manure (FYM) application trigger complex, non-linear redox reactions that govern micronutrient availability in calcareous soils, yet predictive modelling of these dynamics using machine learning (ML) remains largely unexplored, and the present study was designed to address this gap. To this end,…

The various uses of microbial electrochemical cells (MECs) in re source recovery and environmental remediation are highlighted in this chapter. By removing organic pollutants, heavy metals, dyes, and pharmaceutical residues while producing electricity or hydrogen, MECs offer an energy-efficient substitute for traditio…