Pemanfaatan Ekstrak Daun Sirih Hijau (Piper Betle Linn.) sebagai Capping Agent dalam Green Synthesis Spinel Ferit ZnFe2O4 untuk Remediasi Fenol dalam Air dan sebagai Anti Bakteri

Rahmayeni Rahmayeni, Putri Yuliani, Yuliati Eka Putri, Yeni Stiadi
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Abstract

The spinel ferrite material ZnFe2O4 was synthesized using a green synthesis approach by the hydrothermal method. In the synthesis, 2M NaOH was used as a mineralizer and betel leaf extract with varying volumes of 1, 3, 5, and 7 mL as a capping agent, then continued with calcination at 500, 600, and 700°C. Several devices, such as XRD, FT-IR, SEM-EDX, DRS-UV-Vis, and VSM, were used to characterize the synthesized ZnFe2O4 material. The pattern of XRD indicated that the ZnFe2O4 material has a cubic structure, where the increase in crystal size was after calcination. The Fourier Transform Infra-Red (FT-IR) spectrum shows the Fe-O interaction at wave numbers 427-417 cm-1, which is located on the octahedral side, while the Zn-O interaction at wave numbers 534-510 cm-1, which is located on the tetrahedral side in spinel ferrite structure. From the DRS UV-Vis spectrum pattern and band gap values, it was found that the material absorbs light in the visible region. Scanning Electron Microscope (SEM) images show that the morphology of the synthesized material is circular. The Vibrating Sample Magnetometer (VSM) hysteresis curve shows that the synthesized ZnFe2O4 has paramagnetic properties. The synthesized ZnFe2O4 material has photocatalytic activity towards phenolic compounds with a degradation percentage reaching 62.2%, and this material is active as an antibacterial with an inhibition area of 14.4 for S. aereus bacteria.
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利用绿槟榔叶提取物(Piper Betle Linn.)
通过水热法,采用绿色合成方法合成了尖晶石铁氧体材料 ZnFe2O4。在合成过程中,以 2M NaOH 作为矿化剂,以 1、3、5 和 7 mL 不同体积的槟榔叶提取物作为封端剂,然后继续在 500、600 和 700°C 煅烧。利用 XRD、FT-IR、SEM-EDX、DRS-UV-Vis 和 VSM 等设备对合成的 ZnFe2O4 材料进行了表征。XRD 图谱表明,ZnFe2O4 材料具有立方结构,晶体尺寸在煅烧后增大。傅立叶变换红外光谱(FT-IR)显示,在尖晶石铁氧体结构中,Fe-O 相互作用的波数为 427-417 cm-1,位于八面体一侧,而 Zn-O 相互作用的波数为 534-510 cm-1,位于四面体一侧。从 DRS 紫外可见光谱图和带隙值可以发现,该材料在可见光区域吸收光。扫描电子显微镜(SEM)图像显示,合成材料的形态为圆形。振动样品磁力计(VSM)磁滞曲线显示,合成的 ZnFe2O4 具有顺磁特性。合成的 ZnFe2O4 材料对酚类化合物具有光催化活性,降解率达到 62.2%,而且这种材料还具有抗菌活性,对 S. aereus 细菌的抑制面积为 14.4。
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审稿时长
12 weeks
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