| Autor: |
Varghese, Davis, Joe Raja Ruban, M., Joselene Suzan Jennifer, P., AnnieCanisius, D., Ramya, K., Muthupandi, S., Madhavan, J., Victor Antony Raj, M. |
| Zdroj: |
Journal of Materials Science: Materials in Electronics; Feb2024, Vol. 35 Issue 4, p1-33, 33p |
| Abstrakt: |
Tetracycline (TC), a popular antibiotic for treating bacterial diseases in living things, poses a serious threat to the aquatic environment. Even though several standard techniques to remove TC antibiotics from water solutions have been tried, they have not been successful. Therefore, a catalyst works in photocatalytic degradation to use light energy to speed up the breakdown of a chemical molecule. The hydrothermally synthesized ZnFe2O4/MWCNTs composite nanocatalyst was characterized. The study found that MWCNTs could be successfully incorporated into ZnFe2O4 nanoparticles, which slowed down the rate at which charge carriers recombined after merging with MWCNTs. In a batch reactor, the catalyst’s effectiveness was then evaluated by looking at the weight ratio change of the nanocomposite, the initial concentration of TC antibiotics, the impacts of pH and the contact time. When investigating the TC degradation using ZnFe2O4 and MWCNTs as separate pure materials, the same operational conditions were used. ZnFe2O4/MWCNTs achieved a degradation efficiency of 98.3% for TC at a pH value of 7. This result was attained after a reaction duration of 120 min, TC solution concentration of 50 mg/L, nanocomposite dose of 0.6 g/L of TZ 04 and power density of 120 W/m2. The degradation rate of TC was determined utilizing the pseudo-first-order approach. It was observed that the photocatalysts retained their initial characteristics through four successive applications, exhibiting only a slight decrease in removal efficiency while maintaining an optimal balance of catalyst, TC concentration and pH. The study’s findings showed that the ZnFe2O4/MWCNTs nanocomposite was highly effective in TC degradation. It has the potential to work effectively as a catalyst for the removal and degradation of pharmaceutical waste. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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