Characterization of Mesoporous Silica Sponges (MSS-15) Functionalized with Amino Groups as Adsorbents for Chromium (VI) Removal in Water

EasyChair Preprint 3570

Abstract

Water pollution has been one of the most controversial issues in recent years due to the presence of chemical species, specifically heavy metals. These problems affect not only biodiversity but also human health, since it has the capacity to bioaccumulate and cause health effects. Among these metals is chromium (VI), which is used in the leather and automotive industries that discharge their wastewater without prior treatment. There are alternatives for the reduction of this metal in water, such as the use of adsorbents. This method is one of the most efficient methods to reduce heavy metal ions, as it offers several advantages such as stability, recoverability, flexibility, among others. For the present project, a mesoporous silica sponge type (MSS-15), functionalized with amino groups, was developed and characterized to evaluate if its properties are optimal to reduce the concentration of this metal in water. To explain the adsorption capacity of the materials, textural, structural and morphological properties were determined, as well as the presence of functional groups of the MSS-15 using different characterization techniques, such as X-ray diffraction, thermogravimetric analysis, Raman and SEM, from which we can deduce that it has the optimal properties to be a good adsorbent

Keyphrases: Chromium (VI), MSS-15, adsorbents, water pollution

@booklet{EasyChair:3570,
  author    = {Jose Alan Carmona-Chavez and Rufino Nava-Mendoza and Brenda Cruz-Ortiz and Aldo Amaro-Reyes},
  title     = {Characterization of Mesoporous Silica Sponges (MSS-15) Functionalized with Amino Groups as Adsorbents for Chromium (VI) Removal in Water},
  howpublished = {EasyChair Preprint 3570},
  year      = {EasyChair, 2020}}