Photocatalysts based on g-C3N4 have been investigated in the CO2 reduction reaction under visible light irradiation (λ = 397, 427, 452 nm). were prepared by melamine calcination at 500–600 °C with further platinum deposition (0.1–1.0 wt.%). The effect of preparation conditions and method physicochemical properties activity photocatalysts was studied. X-ray photoelectron spectroscopy, absorption...

Porous TiO2/C nanocomposite shells with high capacity, excellent cycle stability, and rate performance have been prepared. The synthesis involves coating colloidal TiO2 nanoshells with a resorcinol-formaldehyde (RF) layer with controllable thickness through a sol-gel-like process, and calcining the composites at 700 °C in an inert atmosphere to induce crystallization from amorphous TiO2 to anat...

Abstract The BiFeO 3 /g-C N 4 heterostructure, which is fabricated via a simple mixing-calcining method, benefits the significant enhancement of pyrocatalytic performance. With growth g-C content in heterostructure pyrocatalysts from 0 to 25%, decomposition ratio Rhodamine B (RhB) dye after 18 cold-hot temperature fluctuation (25–65 °C) cycles increases at first and then decreases, reaching max...

An effective and rapid method for the detection of hydrazine hydrate is urgently needed as a result its high toxicity extensive use. Here, copper nanoparticles supported on carbon (written as: Cu NP/C) oxide polycrystalline solids CuO PS), synthesized by calcining same metal–organic framework at temperature, were respectively used electrode materials electrochemical sensing hydrazine. The resul...

Here, we demonstrate that nano–sized Mn–Ni–Co–O powder can be prepared at a low temperature via co–precipitation method. In this work, Mn2+ was partially oxidized to Mn3+ ions in an aqueous solution by adding oxidizing agent (H2O2). The co-presence of and cations enabled the precipitated products well-crystallized calcining as 650 °C, forming pure cubic spinel structure. pellets fabricated from...

Yttria stabilized zirconia (YSZ) has been widely used as electrolyte in solid oxide fuel cell (SOFC). The effect of fabrication process on the properties of YSZ electrolyte thick film is discussed in the paper. With YSZ nano-powders of about 20-60nm as raw material, YSZ green adobe was fabricated by tape calendering process. Three-step sintering process was performed firstly holding at 1000°C f...

Limestone calcination reaction seems to be a very simple and straight-forward reaction. However, there are numerous critical variables that exert profound effect on lime burning operations. The factors and variables that affect the burning of limestones must be considered in the selection, design and optimization of the calcininig equipment. Limestone burning in a vertical kiln often presents c...

WO,/ZrO, catalysts prepared by different methods are distinct in their catalytic behaviour. In this work, WO,/ZrO, catalysts prepared by impregnating Zr(OH), and crystallized ZrO, and then calcining at selected temperatures were characterized by means of qualitative and quantitative Raman spectroscopy. The results showed that ZrO, in WO,/ZrO, obtained from crystallized ZrO, (referred to as WZ) ...