Photocatalytic degradation of lomefloxacin antibiotics using hydrothermally synthesized magnesium titanate under visible light-driven energy sources

Yadav, Sneha; Yashas, Shivamurthy Ravindra; Thinley, Tenzin; Prabagar, Jijoe Samuel; Shivaraju, Harikaranahalli Puttaiah

doi:10.1007/s11356-022-20540-3

Cited by 15 publications

(1 citation statement)

References 44 publications

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“…The common feature of all studies is the effect of different catalyst doses on the process efficiency. In most of the studies, the impact trend has been increasing first and subsequent decline 45,46 .…”

Section: -2-2 the Interaction Between Parameters On The 24-d Removalmentioning

confidence: 99%

Optimizing the Photocatalytic Degradation of 2,4-Dichlorophenoxyacetic Acid Herbicide from Aqueous Solution

Mehralipour,

Motie,

Kermani

2023

Preprint

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This study focuses on the synthesis of a g-C3N4/Fe3O4 nanocomposite and optimization of PCP in degrading 2,4-D in water. The g-C3N4 and the g-C3N4/Fe3O4 were synthesized using a two-step direct calcination approach and co-precipitation respectively. The quality assessment of the synthesized nanocomposite was conducted through the utilization of XRD, DRS, FTIR, FE-SEM, EDS, elemental mapping, TEM and VSM analytical techniques. The quadratic model has a high F-value (152.27) and low P-value (0.0001), indicating its suitability for explaining the amplification relationship between response values. The optimum parameters for PCP to decompose 2,4-D were determined to be pH~6.5, catalyst dose~16.5 mg/L, reaction time~55.5 min, and initial 2,4-D concentration~52 mg/L (96.11% degradation efficacy). The data showed strong correlation with first-order kinetics (R2>0.95). The efficiency of the PCP is boosted by the existence of a catalyst and photolysis, which creates multiple pathways for 2,4-D breakdown. The PCP exhibited a capacity to diminish COD and TOC by 75% and 63%, respectively. The reaction time decreases with higher light intensity and 2,4-D removal is complete in 45 minutes at 60 mW/cm2. Methanol greatly affects the PCP's scavenging ability. In contrast, the impact of sodium azide was observed to be the least significant and the OH● is deemed as the principal ROS in the PCP. The results show that PO43- reduces efficiency to 72%. The PCP's ability to remove 2,4-D, COD, and TOC remained consistent even after the sixth cycle. The EE/O, 17.3 KW/h.m3.order was calculated. The intermediate products were 2,4-dichlorophenol, 2,6-dichlorophenol, 4,6-dichlororesorcinol, 2-chlorohydroquinone, and 2-chloro-1,4-benzoquinone.

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Section: -2-2 the Interaction Between Parameters On The 24-d Removalmentioning

confidence: 99%

Optimizing the Photocatalytic Degradation of 2,4-Dichlorophenoxyacetic Acid Herbicide from Aqueous Solution

Mehralipour,

Motie,

Kermani

2023

Preprint

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Novel n–n Type CoCr₂O₄/NiFe₂O₄ Heterojunction Photocatalyst: Internal Magnetic Field Control of Photocatalytic Activity, Mechanism Insight and Pathway for Tetracycline Hydrochloride Degradation

Gao,

Angadi,

Wang

et al. 2024

Advanced Sustainable Systems

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Herein, a series of CoCr2O4/wt%NiFe2O4(CCO/wt%NFO) composites are successfully synthesized by a simple solution combustion method combined with mechanical grinding techniques. The preparation of CCO/wt%NFO composites result in an estimation of its photocatalysis performance by removing tetracycline hydrochloride (TC) as a model of antibiotic pollutants. The results show that the percentage of NFO by mass have a great influence on the morphology and the photocatalysis performance of CCO/wt%NFO composites. Superior photocatalysis performance is observed in CCO/25%NFO composites prepared at percentage of NFO is 25%. The photocatalyst used with CCO/25%NFO composites result in a removal ratio of 81% for TC. The generation of hydroxyl radical (•OH), superoxide anion radical (•O2−) and holes (h+) is largely responsible for degrading TC through photocatalysis in the presence of CCO/wt%NFO composites. The optimal operating conditions involve the initial concentration of TC and pH of TC being 50 mg L−1 and pH = 13, respectively. Furthermore, CCO/wt%NFO is highly reusable and stable during the photocatalytic removal process. The degradation pathway, toxicity, and photocatalytic mechanism of CCO/25%NFO composites for the degradation of TC are extensively examined through mass spectrometry, toxicity analysis, and energy band theory.

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Sustainable Treatment of Contaminants of Emerging Concerns in Water and Wastewater

Yadav,

Puttaiah

2024

Water Resources Development and Management

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Photocatalytic degradation of lomefloxacin antibiotics using hydrothermally synthesized magnesium titanate under visible light-driven energy sources

Cited by 15 publications

References 44 publications

Optimizing the Photocatalytic Degradation of 2,4-Dichlorophenoxyacetic Acid Herbicide from Aqueous Solution

Optimizing the Photocatalytic Degradation of 2,4-Dichlorophenoxyacetic Acid Herbicide from Aqueous Solution

Novel n–n Type CoCr₂O₄/NiFe₂O₄ Heterojunction Photocatalyst: Internal Magnetic Field Control of Photocatalytic Activity, Mechanism Insight and Pathway for Tetracycline Hydrochloride Degradation

Sustainable Treatment of Contaminants of Emerging Concerns in Water and Wastewater

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Photocatalytic degradation of lomefloxacin antibiotics using hydrothermally synthesized magnesium titanate under visible light-driven energy sources

Cited by 15 publications

References 44 publications

Optimizing the Photocatalytic Degradation of 2,4-Dichlorophenoxyacetic Acid Herbicide from Aqueous Solution

Optimizing the Photocatalytic Degradation of 2,4-Dichlorophenoxyacetic Acid Herbicide from Aqueous Solution

Novel n–n Type CoCr2O4/NiFe2O4 Heterojunction Photocatalyst: Internal Magnetic Field Control of Photocatalytic Activity, Mechanism Insight and Pathway for Tetracycline Hydrochloride Degradation

Sustainable Treatment of Contaminants of Emerging Concerns in Water and Wastewater

Contact Info

Product

Resources

About

Novel n–n Type CoCr₂O₄/NiFe₂O₄ Heterojunction Photocatalyst: Internal Magnetic Field Control of Photocatalytic Activity, Mechanism Insight and Pathway for Tetracycline Hydrochloride Degradation