Surface Modification of Silica Mesoporous using Nickel and Dysprosium Oxides for the Catalytic Removal of Methylene Blue such as Pollutants

Now, the removal of environmental pollution is a global problem due to the toxicity and mutagenicity of pollution. Studies show that dyes have been extensively studied as one of the main groups of pollutants.Methylene blue dye is an aromatic chemical compound and a common material that used as a dye, and it is not very dangerous, but its effects are harmful.In recent decades, various materials have been produced to adsorb, catalyst, and remove pollutants, and porous materials have attracted much attention as effective adsorbents or catalysts. In this research, silica mesoporous has been synthesized by hydrothermal method from P۱۲۳Tri-block copolymer as a template and TEOS. To modification of silica mesoporous materials, the co-precipitation method was used for doped of nickel oxide (Ni۲O۳) and dysprosium oxide (Dy۲O۳) nanoparticles. Characteristics of the synthesized materials were determined using various methods such as XRD, BET, FT- IR. The catalytic activity of the Ni۲O۳/Dy۲O۳/silica mesoporous nanocomposite was investigated for the degradation of methylene blue. The catalyst parameter effect wasoptimized for methylene blue degradation process. The results showed that about ۹۹% of methylene blue dye was destroyed after۱۵ minutes at concentration of ۰.۰۱ g of synthesized catalyst and pH ۷ at room temperature