酸橙皮介导的片状氧化镁纳米催化剂用于从麻风树油生产生物柴油。

Citrus limetta-peel mediated sheet- like MgO nano-catalyst for the production of biodiesel from jatropha Oil.

作者信息

Kumar Kushwaha Jashvant, Daimari Jennifer, Basumatary Sunshri, Mondal Arunendu, Deka Anamika Kalita

机构信息

Central Institute of Technology Kokrajhar (Deemed to be University, MoE, Govt. of India), Kokrajhar, Assam, 783370, India.

出版信息

Sci Rep. 2025 Jul 1;15(1):21749. doi: 10.1038/s41598-025-05830-3.

DOI:10.1038/s41598-025-05830-3

PMID:40594482

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12216565/

Abstract

The present study spotlights on novel green synthesis of Citrus limetta peel mediated sheet like MgO nano-catalyst (CitLim-PE-MgO Nano-catalyst) for biodiesel production from jatropha oil. The average crystalline size of prepared Nano-catalyst was confirmed by XRD analysis and found 24.5 nm. Sheet-like porous morphology was confirmed by FESEM-EDX. Mg and O-atoms were observed with 38.21 and 50.69 wt% at 1.1 keV and 1.3 keV in EDX. This nano-catalyst showed upto 98.20% yield of biodiesel production through transesterification reaction of jatropha oil with methanol at 65 °C with 8 wt% catalyst in 1:9 oil/methanol ratio. The production of biodiesel was confirmed by GC-MS and NMR spectroscopic analysis. The catalyst was recycled and used twice, with slight decrease in catalytic activity due to possible leaching of active components with 92.47% FAME production at optimum condition (65 °C with 8 wt% catalyst in 1:9 oil/methanol ratio); properties of biodiesel was found under international standards.

摘要

本研究聚焦于利用酸橙果皮介导的新型绿色合成片状氧化镁纳米催化剂（CitLim-PE-MgO纳米催化剂），用于从麻风树油生产生物柴油。通过X射线衍射分析确定了制备的纳米催化剂的平均晶体尺寸，发现为24.5纳米。通过场发射扫描电子显微镜-能谱仪（FESEM-EDX）确认了片状多孔形态。在能谱仪中，在1.1keV和1.3keV处观察到镁和氧原子的重量百分比分别为38.21%和50.69%。该纳米催化剂在65℃、催化剂用量为8wt%、油/甲醇比例为1:9的条件下，通过麻风树油与甲醇的酯交换反应，生物柴油产量高达98.20%。通过气相色谱-质谱联用（GC-MS）和核磁共振（NMR）光谱分析确认了生物柴油的生产。该催化剂经过回收并使用了两次，由于活性成分可能的浸出，催化活性略有下降，在最佳条件下（65℃、催化剂用量为8wt%、油/甲醇比例为1:9）脂肪酸甲酯（FAME）产量为92.47%；生物柴油的性能符合国际标准。