Monday, December 23, 2019
Photocatalytic Lab Report - 826 Words
Introduction: Recently semiconductor based photo-catalysis as a sort of green technology which has attracted notable attraction among the researchers. This field has emerged as one of the most promising ways for photo conversion-related technologies by harvesting sun light in environment and energy fields. In general photocatalytic oxidation has been applied broadly in the process of removal of organic pollutants in water and air as a cost-effective and environmentally friendly technology, which could decompose organic compounds into CO2 and H2O under lenitive conditions. The optimal photocatalytic material should be non-toxic, absorb light in the visible range, be easy to fabricate, remain stable in contact with water, and have highâ⬠¦show more contentâ⬠¦The existence of metal-like electronic conductivity of molybdenum (IV) oxide has formulated them as promising materials in energy related applications [8ââ¬â10]. Graphene, which is the most recent material of the carbongroup, is considered as one of the greatest smart materials ofthe 21st century.[1] Graphene and graphene-based composites show numerous potential applications owing to their distinctivetwo-dimensional assembly and related band structure. Graphene has gained attention of many scientists since its innovation due to its exceptional large surface area (2630 m2g_1),[2] high electrical conductivity at room temperature[3,4](106 s cm-1), good mechanical properties[5] (~1.1 TPa), fracturestrength[5] (125 GPa), breaking strength[6] (42 N m-1), excellentmobility as charge carriers[7] (~20 m2 V_1 s_1), superior thermalconductivity (~5000 W m K_1),[6] high carrier density (~1012 cm_2),[8] good optical transmittance (~97.7%),[9] specific magnetism,and chemical stability.[1] Graphene and its compositesare widely used in sensors, transistors, electronics, composite materials, photonics, bioengineering, energy production, andstorage.[10] Pure g raphene is hydrophobic in nature and cannotbe dispersed in aqueous solutions [11] therefore this factor limitsits application in water purification. Chemically converted graphene, namely graphene oxide and reduced graphene oxide,can be easily synthesized[12] and have shown numerous potentialapplications in waterShow MoreRelatedPhotocatalytic Lab Report865 Words à |à 4 Pagesphoto conversion-related technologies by harvesting sun light in environment and energy fields. In general photocatalytic oxidation has been applied broadly in the process of removal of organic pollutants in water and air as a cost-effective and environmentally friendly technology, which could decompose organic compounds into CO2 and H2O under lenitive conditions. The optimal photocatalytic material should be non-toxic, absorb light in the visible range, be easy to fabricate, remain stable in contactRead MoreThe Effect Of Light On The Human Ear786 Words à |à 4 Pagesmolecules moves to the coolest area of it s system and cool water molecules move to the hottest area of its system. This forms a movement within water called convection. 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