S-doped copper selenide thin films synthesized by chemical bath deposition for photoelectrochemical water splitting

Exploring secondary optical transitions: a study utilizing the DITM method, and enhanced photocatalytic properties in Ni-doped CuSe

“…The sharper peak in Ni-doped CuSe, in comparison to CuSe, suggests that the presence of Ni contributes to a higher crystalline quality of CuSe due to higher degree of order, crystallization and arrangement by filling the vacancies in the lattice network 33 – 38 . Additionally, the larger ionic radius of Ni, leading to increased spacing between crystal planes during the replacement of Cu with Ni, is another factor contributing to a larger crystalline size after doping 39 – 41 . In this regard, by calculating the Scherrer’s equation (D = Kλ/βCosθ) in which D represents the crystallite size, K is a constant known as the shape factor (equal to 0.9), λ is the wavelength of X-ray radiation (1.54 Å), β is the Full Width at Half Maximum (FWHM) based on 2θ in radians, and θ in cosθ is related to the XRD peak position as Bragg's diffraction angle (θ = 2θ/2 in radians), the crystallite sizes in the CuSe and 0.3 mol Ni–CuSe samples after 6 h of annealing (Fig.…”

Efficient Adsorption of Methylene Blue Using a Hierarchically Structured Metal–Organic Framework Derived from Layered Double Hydroxide

“…Human activities and the exponential growth of the economy and industries have propelled water pollution to emerge as a critical global concern . The increasing demand for materials, driven by industrialization and overpopulation, has led to a profound redefinition of our way of life through various technologies . Numerous methods have been reported to address this issue and to eliminate contaminants from wastewater.…”

“… 1 The increasing demand for materials, driven by industrialization and overpopulation, has led to a profound redefinition of our way of life through various technologies. 2 Numerous methods have been reported to address this issue and to eliminate contaminants from wastewater. These include adsorption, extraction, biological degradation, membrane separation, coagulation, electrolysis, 3 precipitation, chemical reduction, and photocatalytic degradation.…”