La 掺杂 CuFeO 纳米材料的可持续方法，用于电化学铅和扑热息痛传感作用及多种应用。
Sustainable approach of La doped CuFeO nanomaterial for electrochemical lead and paracetamol sensing action with multiple applications.
机构信息
Department of Physics, St. Phelomena's College, University of Mysore, Mysore, India.
Department of Physics, Yuvaraja's College, University of Mysore, Mysore, India.
出版信息
Sci Rep. 2023 Oct 19;13(1):17821. doi: 10.1038/s41598-023-45029-y.
This present research aimed to investigate the novel applications of synthesized La doped CuFeO nanomaterial (LCF NMs) using renewable bio-fuel (Aegle Marmelos extract) by combustion process. The sensor applications were accomplished by modified electrode using LCF NMs with graphite powder and examined its excellent sensing action towards heavy metal (Lead content) and drug chemical (Paracetamol) substances. The thermodynamics of redox potential and super-capacitor behavior of LCF NMs were investigated through Cyclic Voltametric (CV) and Electrochemical Impedance Spectral (EIS) methods under specific conditions at scan rate of 1 to 5 mV/s. The heterogeneous photo-catalytic process of prepared NMs on Fast orange Red (FOR) dye-decolouration was investigated and noted its excellent degradation (91.7%) at 90 min using 20 ppm of dye solution and 40 mg of synthesized samples under Sun-light irradiation. Further, the antibacterial activity of synthesized NMs is investigated against various strains of gram positive (Bacillus subtillis) and gram negative bacteria (Pseudomonas aeruginosa), which confirms that the LCF NMs have higher activity towards gram positive bacteria with an average inhibition zone of 19 mm. This synthesized LCF NMs is a multi-functional material with stable and eco-friendly materials.
本研究旨在探索使用可再生生物燃料（柚木叶提取物）通过燃烧法合成的掺镧铜铁氧体纳米材料（LCF NMs）的新应用。通过使用 LCF NMs 与石墨粉修饰电极来完成传感器应用，并研究其对重金属（铅含量）和药物化学物质（扑热息痛）的优异传感作用。通过循环伏安法（CV）和特定条件下的电化学阻抗谱（EIS）方法，在扫描速率为 1 至 5 mV/s 的条件下，研究了 LCF NMs 的氧化还原电位和超级电容器行为的热力学。研究了制备的纳米材料在快速橙红（FOR）染料褪色中的非均相光催化过程，并注意到在 90 分钟内，使用 20 ppm 的染料溶液和 40 mg 合成样品在阳光照射下，染料的降解率达到 91.7%。此外，还研究了合成纳米材料对革兰氏阳性（枯草芽孢杆菌）和革兰氏阴性菌（铜绿假单胞菌）的抗菌活性，结果表明，LCF NMs 对革兰氏阳性菌具有更高的活性，平均抑菌圈为 19mm。这种合成的 LCF NMs 是一种多功能材料，具有稳定和环保的特性。
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