Maria Ulfa , Nina , Indriyani Pangestuti , Holilah , Hasliza Bahruji , Yetria Rilda , Siti Hajar Alias , Hadi Nur
{"title":"Enhancing photocatalytic activity of Fe2O3/TiO2 with gelatin: A fuzzy logic analysis of mesoporosity and iron loading","authors":"Maria Ulfa , Nina , Indriyani Pangestuti , Holilah , Hasliza Bahruji , Yetria Rilda , Siti Hajar Alias , Hadi Nur","doi":"10.1016/j.sajce.2024.08.011","DOIUrl":null,"url":null,"abstract":"<div><p>The synthesis of mesoporous Fe<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub> heterostructures using a P123-Gelatin hybrid template has been investigated for enhanced photocatalytic degradation of methylene blue under visible light. The study focused on the effect of gelatin concentration on mesoporosity, iron content, particle size, and surface area of Fe<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub>. The results showed that the Fe<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub> composites exhibited superior photocatalytic activity compared to individual TiO<sub>2</sub> and Fe<sub>2</sub>O<sub>3</sub>. This enhancement was attributed to the optimized gelatin concentration, which increases mesoporosity and Fe<sub>2</sub>O<sub>3</sub> incorporation, facilitating efficient electron transfer and photo-electron conversion for methylene blue oxidation. Additionally, a fuzzy logic analysis was conducted to correlate the physicochemical properties of the composites with their photocatalytic activities. This analysis identified iron loading and mesoporosity as theion dominant factors affecting photocatalytic efficiency, with a high correlation coefficient. The study concluded that mesoporous Fe<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub> synthesized with the P123-Gelatin template significantly improves methylene blue degradation. This improvement is primarily due to the synergistic effect of large pore diameter and Fe<sup>3+</sup>/Ti<sup>4+</sup> interaction. The fuzzy logic model provided accurate predictions, confirming the critical role of iron loading and mesoporosity in enhancing photocatalytic performance.</p></div>","PeriodicalId":21926,"journal":{"name":"South African Journal of Chemical Engineering","volume":"50 ","pages":"Pages 245-260"},"PeriodicalIF":0.0000,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1026918524001008/pdfft?md5=856e5aa1e2204f5f4921cf0034de1b06&pid=1-s2.0-S1026918524001008-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"South African Journal of Chemical Engineering","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1026918524001008","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Social Sciences","Score":null,"Total":0}
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Abstract
The synthesis of mesoporous Fe2O3/TiO2 heterostructures using a P123-Gelatin hybrid template has been investigated for enhanced photocatalytic degradation of methylene blue under visible light. The study focused on the effect of gelatin concentration on mesoporosity, iron content, particle size, and surface area of Fe2O3/TiO2. The results showed that the Fe2O3/TiO2 composites exhibited superior photocatalytic activity compared to individual TiO2 and Fe2O3. This enhancement was attributed to the optimized gelatin concentration, which increases mesoporosity and Fe2O3 incorporation, facilitating efficient electron transfer and photo-electron conversion for methylene blue oxidation. Additionally, a fuzzy logic analysis was conducted to correlate the physicochemical properties of the composites with their photocatalytic activities. This analysis identified iron loading and mesoporosity as theion dominant factors affecting photocatalytic efficiency, with a high correlation coefficient. The study concluded that mesoporous Fe2O3/TiO2 synthesized with the P123-Gelatin template significantly improves methylene blue degradation. This improvement is primarily due to the synergistic effect of large pore diameter and Fe3+/Ti4+ interaction. The fuzzy logic model provided accurate predictions, confirming the critical role of iron loading and mesoporosity in enhancing photocatalytic performance.
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