Effect of pore structure in bismuth metal-organic framework nanorod derivatives on adsorption and organic pollutant degradation.

This study explores the synthesis, characterization, and photocatalytic properties of bismuth metal-organic framework (Bi-MOF) nanorods and their derivatives such as Ag/Bi-MOF and Ag/BiO. Bi-MOF nanorods exhibit significant photocatalytic activity under visible light, with the addition of silver (Ag) enhancing electron-hole pair separation and reducing their recombination. This leads to improved photocatalytic performance, particularly in the degradation of organic pollutants such as Rhodamine B (RhB) and Methylene Blue (MB).

In situ magnesiothermic reduction synthesis of a Ge@C composite for high-performance lithium-ion batterie anodes.

Metallothermic, especially magnesiothermic, solid-state reactions have been widely applied to synthesize various materials. However, further investigations regarding the use of this method for composite syntheses are needed because of the high reactivity of magnesium. Herein, we report an in situ magnesiothermic reduction to synthesize a composite of Ge@C as an anode material for lithium-ion batteries.

Construction of S-scheme CdS/g-CN nanocomposite with improved visible-light photocatalytic degradation of methylene blue.

Within moderate band gap, g-CN and CdS are both promising visible light driven photocatalysts. However, their intrinsic high recombination rate of photo-induced electron-hole pairs along with the poor susceptibility in photocorrosion of CdS is main limitations hindering their practical application. In this study, the CdS/g-CN composites with various weight ratios of CdS to g-CN were solvothermal prepared from the dispersion of components, g-CN and CdS, in ethanol.

Facile construction of S-scheme SnO/g-CN photocatalyst for improved photoactivity.

The SnO2/g-C3N4 composites were fabricated via an annealing mixture of g-C3N4 and SnO2, which were obtained from calcinating melamine and hydrothermal treatment of SnCl solution, respectively. The photocatalytic properties of g-C3N4/SnO2 were studied over the degradation of Rhodamine B (RhB) under visible light, which exhibits a significantly improved photocatalytic activity compared to the single components, g-C3N4 and SnO2. The enhancement in photocatalytic activity of SnO2/g-C3N4 could be described by the S-scheme pathway, in which the effective charge transfer between components is demonstrated toward the suppression in recombination of the photogenerated electron-hole pairs within redox potential conservation.

One-pot synthesis of S-scheme MoS/g-CN heterojunction as effective visible light photocatalyst.

Despite pioneering as the holy grail in photocatalysts, abundant reports have demonstrated that g-CN performs poor photocatalytic activity due to its high recombination rate of photo-induced charge carriers. Many efforts have been conducted to overcome this limitation in which the semiconductor-semiconductor coupling strategies toward heterojunction formation were considered as the easiest but the most effective method. Herein, a one-pot solid-state reaction of thiourea and sodium molybdate as precursors at different temperatures under N gas was applied for preparing composites of MoS/g-CN.

A Facile Synthesis of MoS/g-CN Composite as an Anode Material with Improved Lithium Storage Capacity.

The demand for well-designed nanostructured composites with enhanced electrochemical performance for lithium-ion batteries electrode materials has been emerging. In order to improve the electrochemical performance of MoS-based anode materials, MoS nanosheets integrated with g-CN (MoS/g-CN composite) was synthesized by a facile heating treatment from the precursors of thiourea and sodium molybdate at 550 °C under N gas flow. The structure and composition of MoS/g-CN were confirmed by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, infrared spectroscopy, X-ray photoelectron spectroscopy, thermogravimetric analysis and elemental analysis.

Lamellar phases containing vanadium oxide: synthesis, characterization and application of the adsorption of phenol from aqueous solutions.

Lamellar phases of the general formula [CnH(2n+1)N(CH3)3]VO3 (n = 14, 16, 18) have been prepared by an ion-exchange/precipitation reaction of alkyltrimethylammonium surfactants and NaVO3 in an aqueous medium at room temperature. The phases were characterized by powder X-ray diffraction, transmission electron microscopy, infrared spectroscopy, thermogravimetric analysis and differential scanning calorimetry. The data support a proposed crystal structure model in which single arrays of the one-dimensional chains of oligomers {(VO3)n}(n-) that may be generated from the starting material NaVO3 fragmented by the hydration during the dissolution into water and the surfactants layers alternate.

Mesostructured material based on [Re6Te8(CN)6]4- cluster and Mn(2+): a rational synthesis of hexagonal nonoxidic mesoscale material.

A new nonoxidic mesostructured material with highly ordered hexagonal symmetry, [C(16)H(33)N(CH(3))(3)](3)Mn(0.5)[Re(6)Te(8)(CN)(6)], has been obtained through supramolecular assembly of [Re(6)Te(8)(CN)(6)](4-) clusters in the presence of a transition metal cation, Mn(2+), with cetyltrimethylammonium bromide as a liquid crystal template under hydrothermal conditions.