Badr, Y Photocatalytic degradation of methyl red dye by silica nanoparticles. [electronic resource] - Journal of hazardous materials Jun 2008 - 245-53 p. digital Publication Type: Journal Article ISSN: 0304-3894 Standard No.: 10.1016/j.jhazmat.2007.10.020 doi Subjects--Topical Terms: Azo Compounds--chemistryCatalysisColoring Agents--chemistryGold--chemistryMicroscopy, Electron, TransmissionNanoparticles--chemistryParticle SizePhotochemistrySilicon Dioxide--chemistrySilver--chemistryUltraviolet RaysWaste Disposal, Fluid--methodsWater Pollutants, Chemical--chemistryWater Purification--methods