Low-dimensional nanostructures are a promising class of ideal high-performance candidates for energy storage and conversion owing to their unique structural, optical, and chemical properties. Low-dimensional nanostructured photocatalysts have attracted ever-growing research attention. In this review, we mainly emphasize on summarizing the 0-, 1-, and 2-dimensional nanostructured photocatalysts systematically, including their photocatalytic performance, synthesis methods, and theoretical analy...

In this work, the results of the study on the optical properties of the perovskite structure ABO₃ with La³⁺ substitution for ions K⁺ and Na⁺ in the A site and Ti⁴⁺ substitution for ion Nb⁵⁺ in the B site are presented. The ceramics were sintered at 1100 ℃ and 1190 ℃ and formed at 10 MPa and 80 MPa. Dense ceramics were obtained with 94% of the theoretical density. The piezoresponse force microscopy (PFM) showed nee...

The thermal shock and fatigue behavior of pressureless sintered Al₂O₃–SiO₂–ZrO₂ (ASZ) composites was studied. The influence of the thermal shock and fatigue on the strengthening response of ASZ has been investigated by measuring the strength retention and microstructural changes. The magnitude of the flexural strength and fracture of the ASZ has been compared with that of the monolithic Al₂O₃ (A) and Al₂O₃...

A detailed investigation on the effect of preparation method on the structural, magnetic, and acidic properties of cobalt ferrite nanoparticles prepared by sol–gel and co-precipitation is presented. Citric acid and ethylene glycol were used as gelling agents, while sodium hydroxide and aqueous ammonia were used as precipitating agents. The resulting ferrites were calcined at 450 ℃ and 750 ℃. Sharper X-ray diffraction (XRD) peaks were observed for the samples calcined at 750 ...

The magnetocaloric effect is calculated for La_1-xCe_xMnO₃ system near a phase transition from ferromagnetic to paramagnetic state as a function of temperature. It is suggested by the results that La_1-xCe_xMnO₃ material can be utilized as the working material in an active magnetic regenerative refrigerator with large temperature span, for its significant entropy change upon the application of a magnetic...

Titanium dioxide is a photocatalytically active substance used as a white pigment for cosmetics. In sunlight, titanium dioxide catalyzes decomposition of a certain amount of sebum on the skin by ultraviolet radiation. Herein, a novel white pigment for use in cosmetics was developed from titanium dioxide and phosphoric acid at pH = 4 with and without glycerin, sodium lactate, lactic acid, and urea. The chemical composition, powder properties, photocatalytic activity, color phase, and smoothnes...

The electrical properties of Ni_0.27Cu_0.10Zn_0.63Fe₂O₄ (NCZF) prepared from auto combustion synthesis of ferrite powders have been studied by impedance and modulus spectroscopy. We studied frequency and temperature dependencies of impedance and electric modulus of NCZF in a wide frequency range (20 Hz–5 MHz) at different measuring temperatures