A facile precipitation method has been developed to synthesize ZnO with [bis(2-aminoethyl)amino]methyl lignin (lignin amine) that is chemically modified from low-cost pulp industrial lignin. The obtained ZnO crystallites have been characterized to exhibit a hexagonal wurtzite structure, and their sizes have been determined at ca. 24 nm (mean value). These ZnO nanocrystallites are of high purity...

A simple and mild wet-chemical approach was developed for the synthesis of one-dimensional (1D) In(OH)(3) nanostructures. By calcining the 1D In(OH)(3) nanocrystals in air at 250 degrees C, 1D In(2)O(3) nanocrystals with the same morphology were obtained. TEM results show that both 1D In(OH)(3) and 1D In(2)O(3) are composed of uniform nanotube bundles. SAED and XRD patterns indicate that 1D In(...

There are many factors that can affect the calciner process of cement production, such as highly nonlinearity and time-lag, making it very difficult to establish an accurate model of the cement precalciner kiln (PCK) system. In order to reduce transport energy consumption and to ensure the quality of cement clinker burning, one needs to explore different control methods from the traditional way...

In the present work, we explore use of steam in CaCO3 calcination step Calcium Looping process devised for thermochemical energy storage (CaL-TCES). Steam produces a double benefit: firstly, it fastens calcination, allowing reduction temperature needed to attain full short residence times, as those required practice, resulting savings. This behaviour is justified on basis kinetics study results...

Abstract In this work, a magnetically separated photocatalyst with great efficiency CuCe-Ferrite/TiO 2 composite was prepared and characterized by X-ray diffraction (XRD), UV–Vis spectrophotometry, Fourier transformer infra-red spectroscopy (FTIR), field emission scanning electron microscopy (FE-SEM), high resolution transmission (HR-TEM), energy dispersive (EDX) vibrating sample magnetometer (...

Gadolinium aluminate is an effective host for doping with various ions, and it can emit colors. However, not easy to prepare transparent ceramics of gadolinium using traditional methods, although are very suitable solid lighting. In this work, a two-dimensional guidance strategy has been successfully carried out perovskite-structured ceramic film. Through the interfacial reaction, GdAlO3:Eu3+ (...

In this paper, the synthesis of dicalcium silicate (C2S) via sol-gel (acid-catalyzed) process including aqueous route, non-aqueous and Pechini method is reported. The composition C2S (α, β, γ) polymorphs, by-products, amorphous content established by employing QXRD (quantitative X-ray diffraction) studies. attention has been focused to comprehend assay-amorphous relationships yield. intermediat...

Abstract: Ore mineral characterization and various experimental testwork were carried out on Asian Abe-Garm dolomite, Qazvin province, Iran. The testwork consisted of calcining, chemical characterization, LOI determination, and reduction tests on the calcined dolomite (doloma), using Semnan ferrosilicon. Calcining of dolomite sample was carried out at about 1400 ºC in order to remove the contai...

TiO2 is widely used for the photocatalytic degradation of organic pollutants in wastewater, but practical applications photocatalyst are limited due to its poor visible light absorption and low recovery rate. In this study, high production nitrogen-doped was achieved by a hydrolysis precipitation method; obtained N-TiO2 had small crystallite size good dispersibility. The effect calcining temper...