Chemical oxidation method has been used to synthesize polypyrrole/titanium dioxide (PT) and polypyrrole/titanium dioxide-MWCNT (PTM) nano composites in the occurrence of ammonium persulphate as an oxidizing agent, by polymerization of pyrrole along with titanium dioxide and titanium dioxide-MWCN...

The paper presents the results of a study of the surface modification of fly ash microspheres with titanium dioxide. To improve adhesion of titanium dioxide, the surface of microspheres was pretreated with concentrated alkali solutions followed by low-temperature sintering with mechanically acti...

Two-step hydrothermal method was used to prepare undoped and boron-doped one-dimensional titanium dioxide (TiO2) nanotubes. Structural properties, thermal stability and microstructural features of the fabricated undoped titanium dioxide nanotubes (TNTs) and boron-doped titanium dioxide nanotubes...

Titanium dioxide nanoparticles, due to their smaller size and increased surface area comparted to the bulk form, are known to be bioreactive and have unexpected toxicological outcomes. Previous studies have shown that nanoscale titanium dioxide induces reactive oxygen species (ROS)-mediated cyto...

The nonstoichiometric titanium dioxide nanotubular films were synthesized by the anodization of titanium foil in a solution of ethylene glycol and ammonium fluoride. The calcination of films at the temperatures of 200–600 °C led to the changes in their morphology, structure, phase composition,...

In this study, ferrous oxalate (FeC2O4) used as an effective heterogeneous Fenton catalyst, was inexpensively synthesized by a chemical precipitation method. The attractive efficiency was investigated to demonstrate the underlying mechanism of in-situ reactivation. Based on the mechanism, the im...

ABSTRACTThe ciprofloxacin–iron interaction, resulting in a lower bioavailability, is well documented in vivo; however, a mechanistic explanation supported by experimental data of this interaction is missing. In the present study, ciprofloxacin hydrochloride (HCl) and ferrous sulfate interaction...

Ferrous sulfates of various hydration states (FeSO4·xH2O; x = 7, 4, 1) and jarosites (MFe3(SO4)2(OH)6; M = Na or K) were synthesized and studied by micro-Raman spectroscopy between 295 and 8 K. Spectral analyses of the sulfate and water/hydroxyl vibrational modes are presented. Fingerprint regi...

A sanderite ferrous sulfate FeSO4·2H2O has been synthesized by the hydro/solvothermal method. Its crystal structure (Pccn, a=6.3160 Å, b=7.7550 Å, c=8.9880 Å, V=440.2 Å3, Z=4) can be regarded as the condensation of alternately corner-shared FeO4(H2O)2 octahedra and SO4 tetrahedra with a similar...

Continuous crystallization experiments on FeSO4 · H2O in aqueous solutions containing Zn2+ were carried out, at temperatures of 140–165°C, in a stainless steel/glass autoclave. The incorporation of Zn2+ in FeSO4 · H2O as a function of process parameters such as the temperature and the reside...

A derivatograph study has been carried out for the thermal decomposition of ferrous sulphate monohydrate in an oxidizing gaseous atmosphere. Based on the results from the derivatographic, thermogravimetric, and X-ray phase analyses, and from Mössbauer spectroscopy, a two-stage process for oxidiz...

Resource utilization of ferrous sulfate waste has become a bottleneck restricting the sustainable development of the titanium dioxide industry in China. This paper proposes a new solution that utilizing ferrous sulfate waste to prepare spinel-structured magnesium ferrite (MF) particles in microm...

In this study, novel nonionic microemulsions (MEs) stabilized using a mixture of Span 20 and Tween 80 were developed for the transdermal delivery of ferrous sulfate. The MEs were evaluated in terms of their droplet size and zeta potential as well as their rheological properties using bob and cup...

The kieserite-type ferrous sulfate FeSO4∙H2O has been studied up to pressures of 9.2 GPa by means of X-ray diffraction, Fourier-transform infrared spectroscopy and Raman spectroscopy. The monoclinic phase undergoes a ferroelastic pressure-induced phase transitions at Pc = 6.154(1) GPa with the t...

A laboratory-grown nickel sample was used to investigate the galvanostatic dissolution under industrial electroplating conditions. The sample contained multiple layers corresponding to changes in the Ni(CO)4 decomposition temperature ranging from 200 to 280 °C. Cyclic voltammetry curves were us...

The dissociation of CO was investigated on a stepped Ni(14 13 13) crystal. The experiments show that the monoatomic steps completely dominate the dissociation of CO on the nickel surface. The activation energy for dissociation of CO along the steps is measured at 500 K to be 150 kJ/mol in the pr...

BackgroundNickel carbonyl is formed when carbon monoxide comes into contact with active nickel. The inhaled nickel carbonyl is rapidly absorbed and distributed mainly to the lungs, brain, adrenal glands, and kidneys. In severe cases, acute nickel carbonyl exposure has been reported to cause death.

The present work aims to evaluate the effect of catalyst pellet size on deactivation due to nickel carbonyl-induced particle sintering. For that purpose, a γ-Al2O3-supported nickel catalyst was prepared and tested under low temperature and high CO partial pressure. A total of four different pel...

This article investigates the effect of the silver plating time on the microwave shielding and mechanical properties of the conductive silicone rubber filled with silver-coated carbonyl nickel powder. The results show that the electromagnetic shielding effectiveness (SE) of the rubber with the s...

The existence of the bis(borole) nickel sandwich compound (η5-C4H4BCH3)2Ni suggests the possibility of mixed methylborole nickel carbonyls. The structures and thermochemistry of the binuclear methylborole nickel carbonyls (C4H4BCH3)2Ni2(CO)n (n = 3, 2, 1) have been compared with those of the is...