Impregnation of porous TiO2/ZnO into MCM-41 synthesized from coal fly ash for enhanced photocatalytic activity of TiO2/ZnO@MCM-41 composites in methylene blue removal
MCM-41 was synthesized from coal fly ash and used as a support for TiO₂/ZnO nanoparticles in methylene blue removal. The composite was prepared using alkali fusion and hydrothermal methods, yielding MCM-41 with a surface area of 1013.73 m2/g, which decreased to 457.81 m2/g upon TiO2/ZnO impregnation...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-06-01
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| Series: | Case Studies in Chemical and Environmental Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666016425000593 |
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| author | Ardi Lukman Hakim Inzus Etika Sari Bunga Jasmine Nur Sabrina Zanna Allia Nurkhalizah Ecce Kamila Ajeng Zahabiya Aditya Nur Hidayat Dety Oktavia Sulistiono R. Nida Sopiah Yuly Kusumawati Ratna Ediati |
| author_facet | Ardi Lukman Hakim Inzus Etika Sari Bunga Jasmine Nur Sabrina Zanna Allia Nurkhalizah Ecce Kamila Ajeng Zahabiya Aditya Nur Hidayat Dety Oktavia Sulistiono R. Nida Sopiah Yuly Kusumawati Ratna Ediati |
| author_sort | Ardi Lukman Hakim |
| collection | DOAJ |
| description | MCM-41 was synthesized from coal fly ash and used as a support for TiO₂/ZnO nanoparticles in methylene blue removal. The composite was prepared using alkali fusion and hydrothermal methods, yielding MCM-41 with a surface area of 1013.73 m2/g, which decreased to 457.81 m2/g upon TiO2/ZnO impregnation. Characterization confirmed the hexagonal mesoporous structure, uniform dispersion of TiO2/ZnO, and enhanced light absorption. Ultraviolet–Visible Diffuse Reflectance Spectroscopy (UV–Vis DRS) results revealed a band gap reduction from 3.22 eV (TZ) to 2.77 eV (TZM), improving photocatalytic activity under UV and visible light irradiation. The 35TiO2/65ZnO@MCM-41 composite achieved 99.21 % MB degradation in 140 min. |
| format | Article |
| id | doaj-art-37229235550f4da280c0d6cc37fdc484 |
| institution | DOAJ |
| issn | 2666-0164 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Chemical and Environmental Engineering |
| spelling | doaj-art-37229235550f4da280c0d6cc37fdc4842025-08-20T02:43:16ZengElsevierCase Studies in Chemical and Environmental Engineering2666-01642025-06-011110115210.1016/j.cscee.2025.101152Impregnation of porous TiO2/ZnO into MCM-41 synthesized from coal fly ash for enhanced photocatalytic activity of TiO2/ZnO@MCM-41 composites in methylene blue removalArdi Lukman Hakim0Inzus Etika Sari1Bunga Jasmine Nur Sabrina2Zanna Allia Nurkhalizah3Ecce Kamila Ajeng Zahabiya4Aditya Nur Hidayat5Dety Oktavia Sulistiono6R. Nida Sopiah7Yuly Kusumawati8Ratna Ediati9Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Jl. Arif Rahman Hakim, Kampus ITS Keputih-Sukolilo, Surabaya, 60111, IndonesiaDepartment of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Jl. Arif Rahman Hakim, Kampus ITS Keputih-Sukolilo, Surabaya, 60111, IndonesiaDepartment of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Jl. Arif Rahman Hakim, Kampus ITS Keputih-Sukolilo, Surabaya, 60111, IndonesiaDepartment of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Jl. Arif Rahman Hakim, Kampus ITS Keputih-Sukolilo, Surabaya, 60111, IndonesiaDepartment of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Jl. Arif Rahman Hakim, Kampus ITS Keputih-Sukolilo, Surabaya, 60111, IndonesiaDepartment of Materials and Metallurgical Engineering, Faculty of Industrial Technology and Systems Engineering, Institut Teknologi Sepuluh Nopember, Jl. Arif Rahman Hakim, Kampus ITS Keputih-Sukolilo, Surabaya, 60111, IndonesiaAutomotive Engineering, Engineering Department, Politeknik Negeri Jember, Jember, 68101, IndonesiaResearch Center for Environmental and Clean Technology, National Research and Innovation Agency, 625 Building, Technology Energy Cluster, PUSPIPTEK, South Tangerang, IndonesiaDepartment of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Jl. Arif Rahman Hakim, Kampus ITS Keputih-Sukolilo, Surabaya, 60111, IndonesiaDepartment of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember, Jl. Arif Rahman Hakim, Kampus ITS Keputih-Sukolilo, Surabaya, 60111, Indonesia; Corresponding author.MCM-41 was synthesized from coal fly ash and used as a support for TiO₂/ZnO nanoparticles in methylene blue removal. The composite was prepared using alkali fusion and hydrothermal methods, yielding MCM-41 with a surface area of 1013.73 m2/g, which decreased to 457.81 m2/g upon TiO2/ZnO impregnation. Characterization confirmed the hexagonal mesoporous structure, uniform dispersion of TiO2/ZnO, and enhanced light absorption. Ultraviolet–Visible Diffuse Reflectance Spectroscopy (UV–Vis DRS) results revealed a band gap reduction from 3.22 eV (TZ) to 2.77 eV (TZM), improving photocatalytic activity under UV and visible light irradiation. The 35TiO2/65ZnO@MCM-41 composite achieved 99.21 % MB degradation in 140 min.http://www.sciencedirect.com/science/article/pii/S2666016425000593Coal fly ashMB degradationMCM-41PhotocatalysisTiO2/ZnO |
| spellingShingle | Ardi Lukman Hakim Inzus Etika Sari Bunga Jasmine Nur Sabrina Zanna Allia Nurkhalizah Ecce Kamila Ajeng Zahabiya Aditya Nur Hidayat Dety Oktavia Sulistiono R. Nida Sopiah Yuly Kusumawati Ratna Ediati Impregnation of porous TiO2/ZnO into MCM-41 synthesized from coal fly ash for enhanced photocatalytic activity of TiO2/ZnO@MCM-41 composites in methylene blue removal Case Studies in Chemical and Environmental Engineering Coal fly ash MB degradation MCM-41 Photocatalysis TiO2/ZnO |
| title | Impregnation of porous TiO2/ZnO into MCM-41 synthesized from coal fly ash for enhanced photocatalytic activity of TiO2/ZnO@MCM-41 composites in methylene blue removal |
| title_full | Impregnation of porous TiO2/ZnO into MCM-41 synthesized from coal fly ash for enhanced photocatalytic activity of TiO2/ZnO@MCM-41 composites in methylene blue removal |
| title_fullStr | Impregnation of porous TiO2/ZnO into MCM-41 synthesized from coal fly ash for enhanced photocatalytic activity of TiO2/ZnO@MCM-41 composites in methylene blue removal |
| title_full_unstemmed | Impregnation of porous TiO2/ZnO into MCM-41 synthesized from coal fly ash for enhanced photocatalytic activity of TiO2/ZnO@MCM-41 composites in methylene blue removal |
| title_short | Impregnation of porous TiO2/ZnO into MCM-41 synthesized from coal fly ash for enhanced photocatalytic activity of TiO2/ZnO@MCM-41 composites in methylene blue removal |
| title_sort | impregnation of porous tio2 zno into mcm 41 synthesized from coal fly ash for enhanced photocatalytic activity of tio2 zno mcm 41 composites in methylene blue removal |
| topic | Coal fly ash MB degradation MCM-41 Photocatalysis TiO2/ZnO |
| url | http://www.sciencedirect.com/science/article/pii/S2666016425000593 |
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