an essential characteristic for high performance inherently hydrophobic membranes such as microporous high density polyethylene (hdpe) membranes is to have a hydrophilic surface. in this project, wet chemical functionalization as a facile and effective method was developed to give a hydrophilic property to hdpe membranes using polar functional groups. kclo3, k2cr2o7 and kmno4 were selected as o...

in this research carbon nanotubes were produced by chemical vapor deposition of acetylene over a mixture of iron and cobalt catalysts supported on nanometric tio2 and the influences of two synthesis parameters: growth temperature and catalyst composition ratio on properties of end-product carbon nanotubes were investigated. the catalytic basis was prepared by wet impregnation method with differ...

Development of facile synthesis strategies for high-quality lanthanidedoped upconversion nanoparticles with controlled composition, crystalline phase, shape, and size is crucial in tuning their chemical and optical properties and exploring their potential applications in diverse fields. This chapter focuses primarily on the formation mechanism of the crystallization (including nucleation and gr...

A new mathematical model based on the total concentration approach is proposed for modeling wet chemical etching process. The proposed mathematical model is a fixed domain formulation of the etching problem. The governing equation based on the total concentration includes the interface condition too. The total concentration of etchant includes the reacted and the unreacted concentration of etch...

A novel wet-chemical method for the preparation of silver flakes was studied. The well-defined particles were prepared by directly adding FeSO4 solution into AgNO3 solution containing citric acid at an agitation speed of 150 r/min at room temperature. The products were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The results show that particles are irregular ...