Synthesis of Mesoporous Silica from Palm Oil Boiler Ash (MS-POBA) with Addition of Methyl Ester Sulfonate as a Template for Free Fatty Acid Adsorption from Crude Palm Oil (CPO)

IF 1 Q4 CHEMISTRY, MULTIDISCIPLINARY

Indonesian Journal of Chemistry Pub Date : 2024-06-01 DOI:10.22146/ijc.87703

Cita Sitohang, A. Kuncaka, A. Suratman

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Abstract

The synthesis of mesoporous material by utilizing palm oil boiler ash (POBA) waste as the silica source and methyl ester sulfonate (MES) surfactant as the template for a high-porosity was investigated for free fatty acids (FFA) adsorption. The research was initiated with silica extraction from POBA by sodium hydroxide addition through the sol-gel precipitation method. Silica modification was carried out with MES surfactant and 3-aminopropyltrimethoxysilane (APTMS) as the co-structure-directing agent (CSDA) in different calcination temperatures. Mesoporous silica-POBA (MS-POBA) free template had a surface area, pore diameter, and pore volume (41.033 m2/g, 4.180 nm, and 0.250 cm3/g) lower than MS-POBA with the template (71.0147 m2/g, 7.923 nm, and 0.524 cm3/g). The ability of MS-POBA to adsorb FFA reached its optimum conditions with an adsorption time of 20 min and an adsorbent dosage of 0.24 g. The FFA removal by MS-POBA with the template was found to have higher adsorption ability, which was 35.54%, compared to the MS-POBA free template of 26.68%. The high porosity of MS-POBA with a template makes the FFA adsorption capacity of this material higher than MS-POBA free template.

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以棕榈油锅炉灰为原料合成介孔二氧化硅（MS-POBA），并添加甲基酯磺酸盐作为吸附粗棕榈油（CPO）中游离脂肪酸的模板

研究人员利用棕榈油锅炉灰（POBA）废料作为二氧化硅源，并以甲酯磺酸盐（MES）表面活性剂作为高孔模板，合成了介孔材料，用于吸附游离脂肪酸（FFA）。研究首先通过溶胶-凝胶沉淀法加入氢氧化钠从 POBA 中提取二氧化硅。在不同的煅烧温度下，使用 MES 表面活性剂和 3-aminopropyltrimethoxysilane (APTMS) 作为共结构引导剂 (CSDA) 对二氧化硅进行改性。不含模板的介孔二氧化硅-POBA（MS-POBA）的表面积、孔径和孔体积（41.033 m2/g、4.180 nm 和 0.250 cm3/g）均低于含模板的 MS-POBA（71.0147 m2/g、7.923 nm 和 0.524 cm3/g）。吸附时间为 20 分钟、吸附剂用量为 0.24 克时，MS-POBA 对 FFA 的吸附能力达到最佳状态。带有模板的 MS-POBA 的高孔隙率使其对 FFA 的吸附能力高于不带模板的 MS-POBA。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Indonesian Journal of Chemistry CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

2.30

自引率

11.10%

发文量

106

审稿时长

15 weeks

期刊介绍： Indonesian Journal of Chemistry is a peer-reviewed, open access journal that publishes original research articles, review articles, as well as short communication in all areas of chemistry, including educational chemistry, applied chemistry, and chemical engineering.