Preparation and characterization of polysaccharides based hybrid materials for wastewater treatment.

Abstract

Polysaccharides could be use to remove undesirable substances that exist in waste water by chemical modification. The adsorption capacity of polysaccharides was improved by chemical modification such as cross linking to give composite materials that have chemical and physical features of both inorganic and organic materials Chitosan is one of most abundant polysaccharides originated from chitin which posses amino and hydroxy functional groups, it could be enhancement the properties of chitosan in chemical and thermal stability, hardness and other properties. Compination of chitosan with silica was improved adsorption performance by addition the features of silica into superior material, chitosan and use these hybride as template for metal oxide nano particles. Using zinc oxide nano particle is helpful in forming promising adsorbent with high affinity to act as antimicrobial agent. Also using Iron oxide such as magnetite could be improving act as adsorbent On the other hand, cellulose is anther polysaccharide that also very abundant because it is the main structure of the plants. Nanocellulose has several features different from conventional materials, such as decrease the toxicity and biodegradability, biocompatibility, specific surface area and others. The modifications of nanocellulose are accomplished to improve the nanocellulose properties. The presence of hydroxyl groups (-OH) expected to facilitate the modification and functionalization of nanocellulose. TEMPO cellulose (TEMPO – CNF) is derivative of cellulose able to combined with metal oxide which support its properties and enhance