Rare earth ions (La3+, Nd3+) substituted cobalt–strontium spinel ferrites for photocatalytic degradation of textile dyes
In the industrial sector, productive and effective treatment of toxic dye-based color pollutants is a key issue. Lanthanum and neodymium substituted cobalt–strontium (Co–Sr) spinel ferrite (Co0.5Sr0.5RExFe2-xO4, x = 0.00 and 0.06) catalysts were synthesized and used to degrade Congo red and rhodamin...
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| Format: | Article |
| Language: | English |
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IWA Publishing
2023-08-01
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| Series: | Water Practice and Technology |
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| Online Access: | http://wpt.iwaponline.com/content/18/8/1742 |
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| author | Iram Ahmad Muhammad Safdar Nazia Yasmin Aisha Iftikhar Ambreen Kalsoom Sadia Khalid Zil e Shams Misbah Mirza |
| author_facet | Iram Ahmad Muhammad Safdar Nazia Yasmin Aisha Iftikhar Ambreen Kalsoom Sadia Khalid Zil e Shams Misbah Mirza |
| author_sort | Iram Ahmad |
| collection | DOAJ |
| description | In the industrial sector, productive and effective treatment of toxic dye-based color pollutants is a key issue. Lanthanum and neodymium substituted cobalt–strontium (Co–Sr) spinel ferrite (Co0.5Sr0.5RExFe2-xO4, x = 0.00 and 0.06) catalysts were synthesized and used to degrade Congo red and rhodamine B dyes from an aqueous solution mixture in this study. For this specific purpose, RE3+ ions substituted Co–Sr spinel ferrite nanoparticles with photocatalytic degradation ability were prepared through sol–gel method. The degradation of CR and RhB in recently synthesized nanoferrites was also examined. SEM and XRD were used to characterize the prepared samples. The optical band gap values of synthesized spinel ferrites were examined with the help of Tauc plots by using UV-visible absorption. It was determined that the energy bandgap ranged from 2.91 to 2.52 eV. For Co0.5Sr0.5Fe2O4, Co0.5Sr0.5La0.06Fe1.94O4, and Co0.5Sr0.5Nd0.06Fe1.94O4 nanoferrites, the rates of CR and RhB dye degradation were 73–90% and 45–85%, respectively, at pH 5–7. The kinetics models successfully described the degradation reaction as pseudo-first-order kinetics. It was, therefore, concluded that the prepared samples can be used as effective photocatalysts in order to eliminate hazardous pollutants present in wastewater.
HIGHLIGHTS
Rare-earth ion substitution spinel ferrite.;
Ferrite for degradation of dyes.;
Suitable band gap for photocatalytic purpose.; |
| first_indexed | 2024-03-12T01:45:21Z |
| format | Article |
| id | doaj.art-54f7084e838a422a8171a58d3f655f5f |
| institution | Directory Open Access Journal |
| issn | 1751-231X |
| language | English |
| last_indexed | 2024-03-12T01:45:21Z |
| publishDate | 2023-08-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Practice and Technology |
| spelling | doaj.art-54f7084e838a422a8171a58d3f655f5f2023-09-09T08:41:46ZengIWA PublishingWater Practice and Technology1751-231X2023-08-011881742175510.2166/wpt.2023.119119Rare earth ions (La3+, Nd3+) substituted cobalt–strontium spinel ferrites for photocatalytic degradation of textile dyesIram Ahmad0Muhammad Safdar1Nazia Yasmin2Aisha Iftikhar3Ambreen Kalsoom4Sadia Khalid5Zil e Shams6Misbah Mirza7 Department of Physics, The Women University Multan, Multan, Pakistan Department of Basic Sciences & Humanities, Khawaja Fareed University of Engineering & Information Technology, Rahim Yar Khan, Pakistan Department of Physics, The Women University Multan, Multan, Pakistan Department of Physics, The Women University Multan, Multan, Pakistan Department of Physics, The Govt Sadiq College Women University Bahawalpur, Bahawalpur, Pakistan Nanosciences & Technology Department, National Centre for Physics Shahdra Valley Road Quaid-i-Azam University Campus, Islamabad 45320, Pakistan The Women University Multan, Multan, Pakistan Department of Physics, The Women University Multan, Multan, Pakistan In the industrial sector, productive and effective treatment of toxic dye-based color pollutants is a key issue. Lanthanum and neodymium substituted cobalt–strontium (Co–Sr) spinel ferrite (Co0.5Sr0.5RExFe2-xO4, x = 0.00 and 0.06) catalysts were synthesized and used to degrade Congo red and rhodamine B dyes from an aqueous solution mixture in this study. For this specific purpose, RE3+ ions substituted Co–Sr spinel ferrite nanoparticles with photocatalytic degradation ability were prepared through sol–gel method. The degradation of CR and RhB in recently synthesized nanoferrites was also examined. SEM and XRD were used to characterize the prepared samples. The optical band gap values of synthesized spinel ferrites were examined with the help of Tauc plots by using UV-visible absorption. It was determined that the energy bandgap ranged from 2.91 to 2.52 eV. For Co0.5Sr0.5Fe2O4, Co0.5Sr0.5La0.06Fe1.94O4, and Co0.5Sr0.5Nd0.06Fe1.94O4 nanoferrites, the rates of CR and RhB dye degradation were 73–90% and 45–85%, respectively, at pH 5–7. The kinetics models successfully described the degradation reaction as pseudo-first-order kinetics. It was, therefore, concluded that the prepared samples can be used as effective photocatalysts in order to eliminate hazardous pollutants present in wastewater. HIGHLIGHTS Rare-earth ion substitution spinel ferrite.; Ferrite for degradation of dyes.; Suitable band gap for photocatalytic purpose.;http://wpt.iwaponline.com/content/18/8/1742congo redphotocatalytic degradationrhodamine bspinel ferriteuv–vis spectroscopy |
| spellingShingle | Iram Ahmad Muhammad Safdar Nazia Yasmin Aisha Iftikhar Ambreen Kalsoom Sadia Khalid Zil e Shams Misbah Mirza Rare earth ions (La3+, Nd3+) substituted cobalt–strontium spinel ferrites for photocatalytic degradation of textile dyes Water Practice and Technology congo red photocatalytic degradation rhodamine b spinel ferrite uv–vis spectroscopy |
| title | Rare earth ions (La3+, Nd3+) substituted cobalt–strontium spinel ferrites for photocatalytic degradation of textile dyes |
| title_full | Rare earth ions (La3+, Nd3+) substituted cobalt–strontium spinel ferrites for photocatalytic degradation of textile dyes |
| title_fullStr | Rare earth ions (La3+, Nd3+) substituted cobalt–strontium spinel ferrites for photocatalytic degradation of textile dyes |
| title_full_unstemmed | Rare earth ions (La3+, Nd3+) substituted cobalt–strontium spinel ferrites for photocatalytic degradation of textile dyes |
| title_short | Rare earth ions (La3+, Nd3+) substituted cobalt–strontium spinel ferrites for photocatalytic degradation of textile dyes |
| title_sort | rare earth ions la3 nd3 substituted cobalt strontium spinel ferrites for photocatalytic degradation of textile dyes |
| topic | congo red photocatalytic degradation rhodamine b spinel ferrite uv–vis spectroscopy |
| url | http://wpt.iwaponline.com/content/18/8/1742 |
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