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 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research 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。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.