Mesoporous Ce-doped Ti:Ash Photocatalyst Investigation in Visible Light Photocatalytic Water Pretreatment Process
The treatment of organic pollutants in water including semiconductor photocatalysis is a promising approach to disinfect water. The objective of this study is to investigate the effect of Ce loaded on mesoporous Ti:Ash catalyst for water pretreatment process. The mesoporous Ti:Ash catalyst that dope...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)
2020-08-01
|
| Series: | Bulletin of Chemical Reaction Engineering & Catalysis |
| Subjects: | |
| Online Access: | https://journal.bcrec.id/index.php/bcrec/article/view/7055 |
| _version_ | 1797677794246787072 |
|---|---|
| author | Abdulkarim Abdulrahman Mohamed Suliman Ruzinah Isha Mazrul Nizam Abu Seman Abdul Latif Ahmad Jamil Roslan |
| author_facet | Abdulkarim Abdulrahman Mohamed Suliman Ruzinah Isha Mazrul Nizam Abu Seman Abdul Latif Ahmad Jamil Roslan |
| author_sort | Abdulkarim Abdulrahman Mohamed Suliman |
| collection | DOAJ |
| description | The treatment of organic pollutants in water including semiconductor photocatalysis is a promising approach to disinfect water. The objective of this study is to investigate the effect of Ce loaded on mesoporous Ti:Ash catalyst for water pretreatment process. The mesoporous Ti:Ash catalyst that doped with Ce was synthesized through wet impregnation method with 5%, 10%, and 15% weight percentage of Ce doped on 40:60 Ti:Ash. The photocatalytic properties were characterized through X-ray powder diffraction, scanning electron microscopy with energy-dispersive X-ray spectroscopy, N2 adsorption-desorption studies and diffuse reflectance UV–vis absorption spectroscopy. It is found that the Ti:Ash nanocomposites doped with Ce shifted the light absorption band-edge position to the visible region. Moreover, the Ce doped Ti:Ash has large surface area and pore diameter. The Ce doping could significantly improve the absorption edge of visible light and adjust the cut-off absorption wavelength from 404 nm to 451, 477 and 496 nm for 5%, 10% and 15% Ce-doped mesoporous Ti:Ash catalysts, respectively. As the Ce doping ratio increased, the band gaps decreased from 3.06 eV to 2.53 eV. The most contaminant reduction up to 45% was achieved when Ti:Ash:Ce 40:55:5 was used. Higher Ce loading on the photocatalyst may reduce the photocatalyst performance because supernumerary metal loading on TiO2 can block TiO2 defect sites which are necessary for the adsorption and photoactivation. The OPFA also acts as an adsorbent for some pollutants besides, reducing the water salinity. It can be deduced that the hybrid TiO2 photocatalyst that synthesized with OPFA and doped with Ce has huge potential to treat seawater prior to commercial seawater desalination process. Copyright © 2020 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). |
| first_indexed | 2024-03-11T22:50:20Z |
| format | Article |
| id | doaj.art-05b0e7a6a955412e9e382f32299891fd |
| institution | Directory Open Access Journal |
| issn | 1978-2993 |
| language | English |
| last_indexed | 2024-03-11T22:50:20Z |
| publishDate | 2020-08-01 |
| publisher | Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS) |
| record_format | Article |
| series | Bulletin of Chemical Reaction Engineering & Catalysis |
| spelling | doaj.art-05b0e7a6a955412e9e382f32299891fd2023-09-22T03:39:01ZengMasyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)Bulletin of Chemical Reaction Engineering & Catalysis1978-29932020-08-0115236737810.9767/bcrec.15.2.7055.367-3783422Mesoporous Ce-doped Ti:Ash Photocatalyst Investigation in Visible Light Photocatalytic Water Pretreatment ProcessAbdulkarim Abdulrahman Mohamed Suliman0Ruzinah Isha1Mazrul Nizam Abu Seman2Abdul Latif Ahmad3Jamil Roslan4Faculty of Engineering Technology of Chemical and Process, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 23600 Kuantan Pahang, MalaysiaFaculty of Engineering Technology of Chemical and Process, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 23600 Kuantan Pahang, MalaysiaFaculty of Engineering Technology of Chemical and Process, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 23600 Kuantan Pahang, MalaysiaSchool of Chemical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Pulau Pinang, MalaysiaFaculty of Engineering Technology of Chemical and Process, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 23600 Kuantan Pahang, MalaysiaThe treatment of organic pollutants in water including semiconductor photocatalysis is a promising approach to disinfect water. The objective of this study is to investigate the effect of Ce loaded on mesoporous Ti:Ash catalyst for water pretreatment process. The mesoporous Ti:Ash catalyst that doped with Ce was synthesized through wet impregnation method with 5%, 10%, and 15% weight percentage of Ce doped on 40:60 Ti:Ash. The photocatalytic properties were characterized through X-ray powder diffraction, scanning electron microscopy with energy-dispersive X-ray spectroscopy, N2 adsorption-desorption studies and diffuse reflectance UV–vis absorption spectroscopy. It is found that the Ti:Ash nanocomposites doped with Ce shifted the light absorption band-edge position to the visible region. Moreover, the Ce doped Ti:Ash has large surface area and pore diameter. The Ce doping could significantly improve the absorption edge of visible light and adjust the cut-off absorption wavelength from 404 nm to 451, 477 and 496 nm for 5%, 10% and 15% Ce-doped mesoporous Ti:Ash catalysts, respectively. As the Ce doping ratio increased, the band gaps decreased from 3.06 eV to 2.53 eV. The most contaminant reduction up to 45% was achieved when Ti:Ash:Ce 40:55:5 was used. Higher Ce loading on the photocatalyst may reduce the photocatalyst performance because supernumerary metal loading on TiO2 can block TiO2 defect sites which are necessary for the adsorption and photoactivation. The OPFA also acts as an adsorbent for some pollutants besides, reducing the water salinity. It can be deduced that the hybrid TiO2 photocatalyst that synthesized with OPFA and doped with Ce has huge potential to treat seawater prior to commercial seawater desalination process. Copyright © 2020 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).https://journal.bcrec.id/index.php/bcrec/article/view/7055ceriumhumic acidpalm oil fiber ashphotocatalysistitanium dioxideseawater pretreatment |
| spellingShingle | Abdulkarim Abdulrahman Mohamed Suliman Ruzinah Isha Mazrul Nizam Abu Seman Abdul Latif Ahmad Jamil Roslan Mesoporous Ce-doped Ti:Ash Photocatalyst Investigation in Visible Light Photocatalytic Water Pretreatment Process Bulletin of Chemical Reaction Engineering & Catalysis cerium humic acid palm oil fiber ash photocatalysis titanium dioxide seawater pretreatment |
| title | Mesoporous Ce-doped Ti:Ash Photocatalyst Investigation in Visible Light Photocatalytic Water Pretreatment Process |
| title_full | Mesoporous Ce-doped Ti:Ash Photocatalyst Investigation in Visible Light Photocatalytic Water Pretreatment Process |
| title_fullStr | Mesoporous Ce-doped Ti:Ash Photocatalyst Investigation in Visible Light Photocatalytic Water Pretreatment Process |
| title_full_unstemmed | Mesoporous Ce-doped Ti:Ash Photocatalyst Investigation in Visible Light Photocatalytic Water Pretreatment Process |
| title_short | Mesoporous Ce-doped Ti:Ash Photocatalyst Investigation in Visible Light Photocatalytic Water Pretreatment Process |
| title_sort | mesoporous ce doped ti ash photocatalyst investigation in visible light photocatalytic water pretreatment process |
| topic | cerium humic acid palm oil fiber ash photocatalysis titanium dioxide seawater pretreatment |
| url | https://journal.bcrec.id/index.php/bcrec/article/view/7055 |
| work_keys_str_mv | AT abdulkarimabdulrahmanmohamedsuliman mesoporouscedopedtiashphotocatalystinvestigationinvisiblelightphotocatalyticwaterpretreatmentprocess AT ruzinahisha mesoporouscedopedtiashphotocatalystinvestigationinvisiblelightphotocatalyticwaterpretreatmentprocess AT mazrulnizamabuseman mesoporouscedopedtiashphotocatalystinvestigationinvisiblelightphotocatalyticwaterpretreatmentprocess AT abdullatifahmad mesoporouscedopedtiashphotocatalystinvestigationinvisiblelightphotocatalyticwaterpretreatmentprocess AT jamilroslan mesoporouscedopedtiashphotocatalystinvestigationinvisiblelightphotocatalyticwaterpretreatmentprocess |