Optimizing Nanocatalyst’s and Technological Factors Influencing on Photocatalytic Degradation of Organic and Inorganic Pollutants

Abstract

AbstractIn recent decades, water pollution with organic and inorganic contaminants is a chief environmental concern. Enormously increasing industrial sectors such as textile dyes, pigments, ink, polymers, plastics, medicine and cosmetics effluent discharges are the main contributors toward the depleting water reservoir qualities. Which potentially have toxic effect on the organism depending on it that also includes humans too. Many of them are destruction resistant by conventional degradation methods. Thus, optimization of photocatalytic degradation methods has proven a new era in global water pollution remediation and cleaning related fields. Photocatalysts are considered as a great potential, economical, eco-friendly, sustainable and show promising role in water remediation of wastewater without generating secondary waste. However, the development of such an advanced system in large scale is still in the optimization phase. The design and development of efficiency, photocatalyst with optimum operational parameters, configuration and integration of photocatalysis is still need to be provoked generously. This chapter will be emphasized on the mechanism and diversifying factors influencing on photocatalysis degradation that should be taken into consideration during optimization and development of the photocatalysis system depending upon the load of the organic and inorganic contaminants. Various electromagnetic spectrum-based excitable nanoparticles or nanomaterials have been studied as photocatalyst that potentially degrade the contaminants from water. TiO2, Fe2O3, CuO, ZnO, CdS, SnO2, ZnS, etc. were extensively studied for the efficiency controlled optimizing factors in the degradation of pollutants. Optimization of Influencing factors and their effect on photocatalytic degradation activity of the photocatalyst on organic and inorganic water pollutants will be the point of convergence of this chapter. Within this frame of reference surface area, morphology of photocatalyst, higher light intensity, presence of oxidant and doping agents were perceived to be effective toward photocatalytic activity. Moreover, the general mechanism of photocatalysis and recent development in nanoparticles/nanomaterials and composite material will be discussed here.KeywordsPhotocatalysisPhotocatalystNanoparticlesNanomaterialsPollutantsFactors influencingWater treatment