Octahedral anatase particles (OAPs) were prepared by hydrothermal (HT) reaction of titanate nanowires (TNWs). OAPs were modified with noble metals (Au, Ag, Cu and Pt) by two photodeposition methods: in the absence and in the initial presence of oxygen in the system. Photocatalytic activities for oxidative decomposition of acetic acid and anaerobic dehydrogenation of methanol under UV/vis irradi...

Global demand for cobalt is increasing rapidly as we transition to a low-carbon economy. In order ensure secure and sustainable supplies of this critical metal there considerable interest in Europe understanding the availability from indigenous resources. This study reviews information on resources evaluates potential additional discoveries. Based published survey national mineral resource agen...

This review paper aims to integrate geological, tectonic and metallogenetic data, including new propose a regional model for the gold (and base metal) mineralization in south Amazonian Craton support mineral exploration concerning magmatic–hydrothermal deposits. The Proterozoic evolution of comprises accretion terrains Archean Carajás Mineral Province. In Tapajós Juruena provinces, located at p...

Thin films of various materials are deposited onto the surface of bulk materials (substrates) to achieve properties unattainable in the substrates alone.1 Among the various types of thin films, those with single crystal quality and in registry with the crystallographic orientation of the substrate are called epitaxial films. They have enormous importance especially in the semiconductor industry...

manganese ore deposits occurred in various types of syngenetic, diagenetic and epigenetic mineralization in association with radiolarian cherts in colored melange of neyriz ophiolite in abadeh tashk area, eastern fars province. microscopic study and xrd analyses show a simple mineralogy for manganese compounds in all types. psylomelane and braunite are the primary manganese compounds in syngene...