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The photocatalytic degradation of Methylene Bleu over TiO2 catalysts supported on hydroxyapatite
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نویسنده
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el ouinani a. ,boumanchara i. ,zbair m. ,chhiti y. ,sahibed-dine a. ,bentiss f. ,bensitel m.
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منبع
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journal of materials and environmental science - 2017 - دوره : 8 - شماره : 4 - صفحه:1301 -1311
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چکیده
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This paper investigated the photocatalytic degradation of methylene bleu (mb) (as one of model compounds of organic dyes in wastewaters) over tio2catalyst supported on hydroxyapatite (hap). hap was synthesized by the double decomposition method; thereafter titanium oxide (tio2) was supported on this base by the chemical wet impregnation (wi) method at different tio2 amounts. the characterization of the catalysts revealed that the performance of the catalyst is related to the interaction between tio2 active phase and the support. catalysts with different percentages of tio2 have been explored. 40 wt.%tio2/hap sample present the optimal photocatalytic activity. this result proves that combining hap and tio2 improve effectively the photocatalytic activity,and therefore improve the degradation of the organic pollutant mb more than that of pure tio2 under ultraviolet (uv) irradiation. © 2017,university of mohammed premier oujda morocco.
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کلیدواژه
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Heterogeneous catalysis; Hydroxyapatite;Methylene bleu; Photocatalytic degradation; TiO2-HAp catalyst
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آدرس
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laboratory of catalysis and corrosion of materials,department of chemistry,university of chouaïb doukkali,faculty of sciences of el jadida,p.o box 20, Morocco, laboratory of catalysis and corrosion of materials,department of chemistry,university of chouaïb doukkali,faculty of sciences of el jadida,p.o box 20,morocco,engineer science laboratory for energy labsipe,national school of applied sciences,university of chouaïb doukkali of el jadida, Morocco, laboratory of catalysis and corrosion of materials,department of chemistry,university of chouaïb doukkali,faculty of sciences of el jadida,p.o box 20, Morocco, engineer science laboratory for energy labsipe,national school of applied sciences,university of chouaïb doukkali of el jadida, Morocco, laboratory of catalysis and corrosion of materials,department of chemistry,university of chouaïb doukkali,faculty of sciences of el jadida,p.o box 20, Morocco, laboratory of catalysis and corrosion of materials,department of chemistry,university of chouaïb doukkali,faculty of sciences of el jadida,p.o box 20,morocco,umet-isp,cnrs umr 8207,enscl,university of lille,p.o box 90108,villeneuve d'ascq cedex, France, laboratory of catalysis and corrosion of materials,department of chemistry,university of chouaïb doukkali,faculty of sciences of el jadida,p.o box 20, Morocco
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Authors
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