合成二氧化鋯與三氧化二釔奈米結構及其於大豆油及麻瘋樹油中磷脂吸附之應用

Synthesis of ZrO2 and Y2O3 nanostructures for the removal of phospholipids from soybean oil and jatropha oil

陳貞卉(Jhen-Huei Chen)

指導教授 ： 林義峰

中原大學/工學院/化學工程研究所/碩士(2012年)

https://doi.org/10.6840/cycu201200665

摘要

由於國際油價逐年攀升，尋找新的替代能源早已成為各國努力的目標，而生質柴油更是受到注目，其中又以麻瘋樹油最具潛力，但因麻瘋樹油磷脂含量過高，在實際應用部份受到極大的限制。因此，去除麻瘋樹油中的磷脂成了最重要的工作，但由於實驗過程中麻瘋樹油取得不易，我們以大豆油模擬麻瘋樹油系統，再將其實驗結果應用於麻瘋樹油中。

過去有許多文獻提到金屬氧化物可以有效的移除水中或是土壤中的磷酸根，但大部份的文獻都是以水溶液作為實驗系統，對於將金屬氧化物應用於移除油中磷脂的文獻則極為少見。因此，本實驗嘗試以簡單的水熱法製備二氧化鋯與三氧化二釔奈米材料，並將四種吸附材於大豆油與麻瘋樹油中進行磷脂吸附，分析磷脂種類與吸附材之間的關係，利用路易士酸鹼理論解釋吸附材與磷脂間的作用力。

根據實驗結果，可以發現ZrO2於麻瘋樹油中時其磷脂吸附效果優於ZrO2商業粉。但與其他吸附材結構同時於麻瘋樹油中進行吸附實驗，其結果顯示出，p-Y2O3的吸附效果較佳，主要原因來自於較大的電負度差值。因此整體來說，吸附材於大豆油中的吸附效果順序應為p-Y2O3> Y2O3> p-ZrO2> ZrO2> ZrO2商業粉。

關鍵字

水熱法 ； 三氧化二釔 ； 二氧化鋯 ； 路易士酸 ； 磷脂

並列摘要

Nowadays, the international oil price has been rised, to find new alternative energy sources is necessary. The biodiesel has been widely studied, and the Jatropha oil is the most potential. However, the Jatropha oil has higher phospholipid content which limiting its practical applications. The removal of phospholipids of Jatropha oil has become the most important work. Since the Jatropha oil is not common, in the experiment, we use the soybean oil to simulate the Jatropha oil system, and take the experimental results to apply in Jatropha oil system.

In this study, we use a simple hydrothermal method to prepare zirconia and Y2O3 nanomaterials. Also, we take these four adsorbents to adsorb the phospholipids of soybean oil and Jatropha oil, and to analyze the relationship between the phospholipid species and the adsorbents. The affinaty between the materials and phospholipids could be explained by Lewis theory.

According to the experimental results, we can find the phospholipid adsorption capacity of ZrO2 is better than the the ZrO2 commercial powder in Jatropha oil. However, among all adsorbents, the p-Y2O3 has best phospholipid adsorption capacity in the Jatropha oil system, because the p-Y2O3 electronegativity difference is relatively large.

In a word, the adsorption effect of adsorbents is p-Y2O3 > Y2O3 > p-ZrO2 > ZrO2.

並列關鍵字

phospholipid ； Lewis acid ； ZrO2 ； Y2O3 ； hydrothermal method

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