Bambang Wijaya , Dewangga Oky Bagus Apriandanu , Rizki Marcony Surya , Yoki Yulizar , Nonni Soraya Sambudi , Munawar Khalil , Aminah Umar
{"title":"利用艾蒿叶提取物合成新型 TiO2/CeFeO3 异质结，增强其在可见光照射下的光催化活性","authors":"Bambang Wijaya , Dewangga Oky Bagus Apriandanu , Rizki Marcony Surya , Yoki Yulizar , Nonni Soraya Sambudi , Munawar Khalil , Aminah Umar","doi":"10.1016/j.apsadv.2024.100599","DOIUrl":null,"url":null,"abstract":"<div><p>TiO<sub>2</sub> is a low-cost and biocompatible material with high oxidizing ability. However, their photocatalytic activity is limited to UV light irradiation. In this research, for the first time, a novel TiO<sub>2</sub>/CeFeO<sub>3</sub> heterojunction was synthesized by the green synthesis method using an aqueous fraction of <em>Artemisia vulgaris</em> leaf extracts. TiO<sub>2</sub>/CeFeO<sub>3</sub> shows enhanced photocatalytic performance under visible light irradiation. The vibrational, structural, optical, and compositional properties of TiO<sub>2</sub>/CeFeO<sub>3</sub> were characterized. The as-prepared TiO<sub>2</sub>/CeFeO<sub>3</sub> has spherical-shaped particles and shows a significantly diminished bandgap energy (3.25 eV to 2.75 eV). The photocatalytic performance of TiO<sub>2</sub>/CeFeO<sub>3</sub> was investigated to degrade malachite green (MG) with an efficiency of up to 93.53% under its optimum dose. TiO<sub>2</sub>/CeFeO<sub>3</sub> shows stable photocatalytic performance until the fourth cycle. The kinetics of the photodegradation of MG followed the pseudo-first-order reaction with a rate constant (<em>k<sub>a</sub></em><sub>pp</sub>) of 2.14×10<sup>−2</sup> min<sup>−1</sup>. The enhanced photocatalytic activity of TiO<sub>2</sub>/CeFeO<sub>3</sub> was attributable to the creation of heterojunction, which suppresses the recombination rate of photogenerated electron-hole validated by the photoluminescence analysis. This work presents an eco-friendly approach to synthesizing novel heterojunction material with enhanced photocatalytic dye degradation.</p></div>","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":null,"pages":null},"PeriodicalIF":7.5000,"publicationDate":"2024-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666523924000278/pdfft?md5=d207365fe5f8175fd713a1fb92bd4c93&pid=1-s2.0-S2666523924000278-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Synthesis of novel TiO2/CeFeO3 heterojunction using Mugwort (Artemisia vulgaris) leaves extracts with enhanced photocatalytic activity under visible light irradiation\",\"authors\":\"Bambang Wijaya , Dewangga Oky Bagus Apriandanu , Rizki Marcony Surya , Yoki Yulizar , Nonni Soraya Sambudi , Munawar Khalil , Aminah Umar\",\"doi\":\"10.1016/j.apsadv.2024.100599\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>TiO<sub>2</sub> is a low-cost and biocompatible material with high oxidizing ability. However, their photocatalytic activity is limited to UV light irradiation. In this research, for the first time, a novel TiO<sub>2</sub>/CeFeO<sub>3</sub> heterojunction was synthesized by the green synthesis method using an aqueous fraction of <em>Artemisia vulgaris</em> leaf extracts. TiO<sub>2</sub>/CeFeO<sub>3</sub> shows enhanced photocatalytic performance under visible light irradiation. The vibrational, structural, optical, and compositional properties of TiO<sub>2</sub>/CeFeO<sub>3</sub> were characterized. The as-prepared TiO<sub>2</sub>/CeFeO<sub>3</sub> has spherical-shaped particles and shows a significantly diminished bandgap energy (3.25 eV to 2.75 eV). The photocatalytic performance of TiO<sub>2</sub>/CeFeO<sub>3</sub> was investigated to degrade malachite green (MG) with an efficiency of up to 93.53% under its optimum dose. TiO<sub>2</sub>/CeFeO<sub>3</sub> shows stable photocatalytic performance until the fourth cycle. The kinetics of the photodegradation of MG followed the pseudo-first-order reaction with a rate constant (<em>k<sub>a</sub></em><sub>pp</sub>) of 2.14×10<sup>−2</sup> min<sup>−1</sup>. The enhanced photocatalytic activity of TiO<sub>2</sub>/CeFeO<sub>3</sub> was attributable to the creation of heterojunction, which suppresses the recombination rate of photogenerated electron-hole validated by the photoluminescence analysis. This work presents an eco-friendly approach to synthesizing novel heterojunction material with enhanced photocatalytic dye degradation.</p></div>\",\"PeriodicalId\":34303,\"journal\":{\"name\":\"Applied Surface Science Advances\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":7.5000,\"publicationDate\":\"2024-04-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2666523924000278/pdfft?md5=d207365fe5f8175fd713a1fb92bd4c93&pid=1-s2.0-S2666523924000278-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Surface Science Advances\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2666523924000278\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Surface Science Advances","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2666523924000278","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Synthesis of novel TiO2/CeFeO3 heterojunction using Mugwort (Artemisia vulgaris) leaves extracts with enhanced photocatalytic activity under visible light irradiation
TiO2 is a low-cost and biocompatible material with high oxidizing ability. However, their photocatalytic activity is limited to UV light irradiation. In this research, for the first time, a novel TiO2/CeFeO3 heterojunction was synthesized by the green synthesis method using an aqueous fraction of Artemisia vulgaris leaf extracts. TiO2/CeFeO3 shows enhanced photocatalytic performance under visible light irradiation. The vibrational, structural, optical, and compositional properties of TiO2/CeFeO3 were characterized. The as-prepared TiO2/CeFeO3 has spherical-shaped particles and shows a significantly diminished bandgap energy (3.25 eV to 2.75 eV). The photocatalytic performance of TiO2/CeFeO3 was investigated to degrade malachite green (MG) with an efficiency of up to 93.53% under its optimum dose. TiO2/CeFeO3 shows stable photocatalytic performance until the fourth cycle. The kinetics of the photodegradation of MG followed the pseudo-first-order reaction with a rate constant (kapp) of 2.14×10−2 min−1. The enhanced photocatalytic activity of TiO2/CeFeO3 was attributable to the creation of heterojunction, which suppresses the recombination rate of photogenerated electron-hole validated by the photoluminescence analysis. This work presents an eco-friendly approach to synthesizing novel heterojunction material with enhanced photocatalytic dye degradation.
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