Degradation of tetracycline by visible light over ZnO nanophotocatalyst

Jia, Kun; Liu, Gang; Lang, Daning; Chen, Shi-Fei; Yang, Chao; Wu, Ren‐Jang; Wang, Wei; Wang, Jide

doi:10.1016/j.jtice.2022.104422

Cited by 25 publications

(2 citation statements)

References 79 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The photocatalytic reactions can be enhanced by adding metal ions to the ZnO matrix [ 15 , 16 ]. Recently, it was reported that ZnO nanoparticles synthesized through precipitation method using sodium dodecyl sulfate can degrade 49% of tetracycline [ 17 ]. Similarly, the Ni doping in ZnO matrix decreased the recombination rate of the charge carriers and resulted in enhanced photodegradation efficiency (94%) for the removal of methylene blue dye [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Rare Earth Doped ZnO Nanoparticles as Spintronics and Photo Catalyst for Degradation of Pollutants

et al. 2023

View full text Add to dashboard Cite

Antibiotic water contamination is a growing environmental problem in the present day. As a result, water treatment is required for its reduction and elimination. Due to their important role in resolving this issue, photocatalysts have drawn a great deal of interest over the past few decades. When non-biodegradable organic matter is present in polluted water, the photo catalytic process, which is both environmentally friendly and an improved oxidation method, can be an effective means of remediation. In this regard, we report the successful synthesis of pure phased rare earth doped ZnO nanoparticles for tetracycline degradation. The prepared catalysts were systematically characterized for structural, optical, and magnetic properties. The optical band gap was tailored by rare earth doping, with redshift for Sm and Dy doped nanoparticles and blueshift for Nd doped ZnO nanoparticles. The analysis of photoluminescence spectra revealed information about the defect chemistry of all synthesised nanoparticles. Magnetic studies revealed that all synthesized diluted magnetic semiconductors exhibit room temperature ferromagnetism and can be employed for spintronic applications. Moreover, Dy doped ZnO nanoparticles were found to exhibit a maximum degradation efficiency of 74.19% for tetracycline (TCN) removal. The synthesized catalysts were also employed for the degradation of Malachite green (MG), and Crystal violet (CV) dyes. The maximum degradation efficiency achieved was 97.18% for MG and 98% for CV for Dy doped ZnO nanoparticles. The degradation mechanism involved has been discussed in view of the reactive species determined from scavenging experiments.

show abstract

Section: Introductionmentioning

confidence: 99%

Rare Earth Doped ZnO Nanoparticles as Spintronics and Photo Catalyst for Degradation of Pollutants

et al. 2023

View full text Add to dashboard Cite

show abstract

“…To overcome these problems, especially in wastewater treatment processes, it is particularly crucial to find new technologies that can achieve clean, efficient, and economic development in contrast to conventional treatment methods, which struggle with excessive chemical consumption, low energy efficiency, and complicated operation procedure [ 5 , 6 , 7 , 8 ]. Among various industrial wastewaters, the excess discharge of antibiotics in the environment has aroused severe concerns due to the residual antibiotics in the environment, leading to drug-resistant problems in everyday life [ 9 , 10 , 11 ]. Levofloxacin (LVF) is one of the most widely used antibiotics for disease control in medical applications [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Degradation of Levofloxacin through Visible-Light-Driven Peroxymonosulfate Activation over CuInS2/g-C3N4 Heterojunctions

Zhong,

Ji,

et al. 2023

Nanomaterials

View full text Add to dashboard Cite

In this work, the heterojunctions of CuInS2 embedded in the g-C3N4 materials (xCuInS2/g-C3N4, abbreviated as xCIS/GCN) was successfully prepared for peroxymonosulfate (PMS) activation under visible light. The catalysts are characterized by different techniques, such as XRD, FTIR, SEM, TEM, and UV-vis. The unique heterojunction composites can suppress the recombination of photogenerated pairs. The catalytic results showed that the 3CIS/GCN exhibited excellent catalytic levofloxacin (LVF) degradation efficiency, while more than 98.9% of LVF was removed in 60 min over a wide pH range. SO4•−, O2•−, OH•, and 1O2 were verified as the main reactive species for LVF degradation via the quenching experiments and electron paramagnetic resonance technology (EPR). The synergetic effect of xCIS/GCN, PMS, and visible light irradiation was discussed. The possible LVF degradation pathway was proposed through byproducts analysis (LC-MS). Moreover, the 3CIS/GCN/vis-PMS system has very low metal leaching. Owing to xCIS/GCN having good properties for PMS activation, it has potential applications for LVF or other hazardous pollutants degradation.

show abstract

Combined Effect of Adsorption and Photocatalytic Degradation Using Magnesium Oxide Nano-flowers for Tetracycline Removal

Bekhit,

Zaki,

Hassouna

et al. 2024

J Inorg Organomet Polym

View full text Add to dashboard Cite

The extensive use of antibiotics, including tetracycline (TC), has several negative impacts on ecosystems that need attention. In the present study, magnesium oxide nano-flowers (MgO NFs) were examined as an adsorbent and as a degradation photocatalyst for TC elimination. MgO NFs were characterized by XRD, UV-Vis, PL, SEM, TEM, and FTIR. Optimization of the removal process included varying the treatment time, initial pH, MgO NFs dosage, and testing with different initial TC concentrations. The highest removal efficiency (77.3%) was achieved for 50 mg/L TC using 0.6 g/L of MgO NFs at pH 9. Adsorption removal contributed to 26.0% of this removal, while 51.3% was attributed to photocatalytic removal. A one-way analysis of variance (ANOVA) revealed significant impacts of time, initial pH, MgO NFs dose, and initial TC concentrations on TC removal. Although adding different ions showed strong effects on TC adsorption on MgO NFs, those ions inhibited TC removal by about 5% after photocatalytic degradation. Adsorption data fitted well with the Langmuir isotherm and pseudo-second-order kinetic models, the adsorption process was monolayer on a homogenous surface based on chemical interactions. Based on the Langmuir-Hinshelwood model, t1/2 values ranged from 60.79 to 76.15 min for TC concentrations varying from 10 to 60 mg/L. Bacterial growth inhibition of Escherichia coli (ATCC 25,922) and Bacillus cereus (ATCC 33,019) were reduced after TC treatment. The study evidenced that using MgO NFs in photodegradation is an effective approach for TC removal from water bodies.

show abstract

Degradation of tetracycline by visible light over ZnO nanophotocatalyst

Cited by 25 publications

References 79 publications

Rare Earth Doped ZnO Nanoparticles as Spintronics and Photo Catalyst for Degradation of Pollutants

Rare Earth Doped ZnO Nanoparticles as Spintronics and Photo Catalyst for Degradation of Pollutants

Enhanced Degradation of Levofloxacin through Visible-Light-Driven Peroxymonosulfate Activation over CuInS2/g-C3N4 Heterojunctions

Combined Effect of Adsorption and Photocatalytic Degradation Using Magnesium Oxide Nano-flowers for Tetracycline Removal

Contact Info

Product

Resources

About