Enhanced catalytic degradation of acetaminophen using magnesium oxide-infused clay with ultrasonic activation of hydrogen peroxide
In this study, clay modified with magnesium oxide (MgO) was used as a catalyst for the degradation of acetaminophen in wastewater, activated by hydrogen peroxide (H2O2) and ultrasonic waves. Characterization of the Clay-MgO catalyst was conducted using TGA, XRD, BET, SEM, FTIR, XRF, and EDX, reveali...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-12-01
|
| Series: | Arabian Journal of Chemistry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1878535224004490 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1846164549581930496 |
|---|---|
| author | Roshana Rashidi Seyed Hamed Meraji Amin Mahmoudi Ali Mohammad Sanati Bahman Ramavandi |
| author_facet | Roshana Rashidi Seyed Hamed Meraji Amin Mahmoudi Ali Mohammad Sanati Bahman Ramavandi |
| author_sort | Roshana Rashidi |
| collection | DOAJ |
| description | In this study, clay modified with magnesium oxide (MgO) was used as a catalyst for the degradation of acetaminophen in wastewater, activated by hydrogen peroxide (H2O2) and ultrasonic waves. Characterization of the Clay-MgO catalyst was conducted using TGA, XRD, BET, SEM, FTIR, XRF, and EDX, revealing functional groups capable of activating H2O2. The crystalline catalyst, synthesized at 500 °C, had a surface area of 30 m2/g. Optimal conditions for acetaminophen removal, achieving 75 % efficiency, were pH 8, 3 g/L catalyst, 0.2 mL/100 mL H2O2, and 60 min of contact time. In distilled water, mineralization of acetaminophen was 42 %, while actual wastewater showed 18 %. Hydroxyl radicals played a significant role in the degradation process. The catalyst was tested for reuse up to six times and maintained a high efficiency of over 53 % in five stages. Radical scavenger studies confirmed the importance of hydroxyl radicals in the degradation kinetics, which followed pseudo-first-order (R2 > 0.96) and Langmuir-Hinshelwood (R2 = 0.95) models. The catalyst also demonstrated efficient acetaminophen removal in complex solutions, including seawater. This MgO-modified clay shows promise as an effective catalyst for the degradation of pharmaceutical pollutants through hydrogen peroxide activation, maintaining stability and reusability across multiple cycles. |
| format | Article |
| id | doaj-art-71b8c39b148d4c8b98f54e318f4cb99c |
| institution | Kabale University |
| issn | 1878-5352 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arabian Journal of Chemistry |
| spelling | doaj-art-71b8c39b148d4c8b98f54e318f4cb99c2024-11-18T04:32:46ZengElsevierArabian Journal of Chemistry1878-53522024-12-011712106047Enhanced catalytic degradation of acetaminophen using magnesium oxide-infused clay with ultrasonic activation of hydrogen peroxideRoshana Rashidi0Seyed Hamed Meraji1Amin Mahmoudi2Ali Mohammad Sanati3Bahman Ramavandi4Department of Civil Engineering, Faculty of Engineering, Persian Gulf University, Bushehr, IranDepartment of Civil Engineering, Faculty of Engineering, Persian Gulf University, Bushehr, IranDepartment of Civil Engineering, Faculty of Engineering, Persian Gulf University, Bushehr, IranDepartment of Environmental Science, Persian Gulf Research Institute, Persian Gulf University, Bushehr, Iran; Corresponding authors.Systems Environmental Health and Energy Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran; Corresponding authors.In this study, clay modified with magnesium oxide (MgO) was used as a catalyst for the degradation of acetaminophen in wastewater, activated by hydrogen peroxide (H2O2) and ultrasonic waves. Characterization of the Clay-MgO catalyst was conducted using TGA, XRD, BET, SEM, FTIR, XRF, and EDX, revealing functional groups capable of activating H2O2. The crystalline catalyst, synthesized at 500 °C, had a surface area of 30 m2/g. Optimal conditions for acetaminophen removal, achieving 75 % efficiency, were pH 8, 3 g/L catalyst, 0.2 mL/100 mL H2O2, and 60 min of contact time. In distilled water, mineralization of acetaminophen was 42 %, while actual wastewater showed 18 %. Hydroxyl radicals played a significant role in the degradation process. The catalyst was tested for reuse up to six times and maintained a high efficiency of over 53 % in five stages. Radical scavenger studies confirmed the importance of hydroxyl radicals in the degradation kinetics, which followed pseudo-first-order (R2 > 0.96) and Langmuir-Hinshelwood (R2 = 0.95) models. The catalyst also demonstrated efficient acetaminophen removal in complex solutions, including seawater. This MgO-modified clay shows promise as an effective catalyst for the degradation of pharmaceutical pollutants through hydrogen peroxide activation, maintaining stability and reusability across multiple cycles.http://www.sciencedirect.com/science/article/pii/S1878535224004490Magnesium oxideClayAcetaminophenHydrogen peroxideLangmuir-Hinshelwood model |
| spellingShingle | Roshana Rashidi Seyed Hamed Meraji Amin Mahmoudi Ali Mohammad Sanati Bahman Ramavandi Enhanced catalytic degradation of acetaminophen using magnesium oxide-infused clay with ultrasonic activation of hydrogen peroxide Arabian Journal of Chemistry Magnesium oxide Clay Acetaminophen Hydrogen peroxide Langmuir-Hinshelwood model |
| title | Enhanced catalytic degradation of acetaminophen using magnesium oxide-infused clay with ultrasonic activation of hydrogen peroxide |
| title_full | Enhanced catalytic degradation of acetaminophen using magnesium oxide-infused clay with ultrasonic activation of hydrogen peroxide |
| title_fullStr | Enhanced catalytic degradation of acetaminophen using magnesium oxide-infused clay with ultrasonic activation of hydrogen peroxide |
| title_full_unstemmed | Enhanced catalytic degradation of acetaminophen using magnesium oxide-infused clay with ultrasonic activation of hydrogen peroxide |
| title_short | Enhanced catalytic degradation of acetaminophen using magnesium oxide-infused clay with ultrasonic activation of hydrogen peroxide |
| title_sort | enhanced catalytic degradation of acetaminophen using magnesium oxide infused clay with ultrasonic activation of hydrogen peroxide |
| topic | Magnesium oxide Clay Acetaminophen Hydrogen peroxide Langmuir-Hinshelwood model |
| url | http://www.sciencedirect.com/science/article/pii/S1878535224004490 |
| work_keys_str_mv | AT roshanarashidi enhancedcatalyticdegradationofacetaminophenusingmagnesiumoxideinfusedclaywithultrasonicactivationofhydrogenperoxide AT seyedhamedmeraji enhancedcatalyticdegradationofacetaminophenusingmagnesiumoxideinfusedclaywithultrasonicactivationofhydrogenperoxide AT aminmahmoudi enhancedcatalyticdegradationofacetaminophenusingmagnesiumoxideinfusedclaywithultrasonicactivationofhydrogenperoxide AT alimohammadsanati enhancedcatalyticdegradationofacetaminophenusingmagnesiumoxideinfusedclaywithultrasonicactivationofhydrogenperoxide AT bahmanramavandi enhancedcatalyticdegradationofacetaminophenusingmagnesiumoxideinfusedclaywithultrasonicactivationofhydrogenperoxide |