伞果皮中提取的果胶作为生物吸附剂对Cu(II)金属离子的吸附

Trisna Kumala Sari, Elinda Fithriana, Indang Dewata, Desy Kurniawati, Romy Dwipa Yamesa Away
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引用次数: 0

摘要

众所周知,重金属存在于受污染的水中会严重伤害陆地植物和动物,包括人类,以及海洋物种。在本研究中使用的间歇吸附技术中,使用一种廉价的环保吸附剂从水溶液中去除Cu(II)离子,这种吸附剂是从伞叶果皮提取的果胶中制备的。利用傅里叶变换红外光谱(FT-IR)对提取的果胶的官能团进行了研究。考察了pH、接触时间、初始吸附浓度等操作条件。FTIR表征表明,从伞叶果皮中成功提取了果胶,其峰位于3331.36 cm-1、2924.02 cm-1、1727.38 cm-1、1626.20 cm-1、1329.31cm -1、1232.43cm -1、994.18 cm-1,与商品果胶具有相似的特征。在pH = 4、接触时间为90 min、初始金属浓度为150 ppm时,Cu(II)离子的吸收量最大。在最佳吸附条件下,提取的果胶对Cu(II)离子的吸附量为6.5860 mg/g。此外,在巴塘阿劳河水中接触伞果皮提取果胶的吸附量为0.0376 mg/g。因此,从伞叶果皮中提取的果胶可用于过滤水溶液中的Cu(II)离子。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Extracted Pectin from Ambarella Fruit Peel (Spondias dulcis) as Biosorbent in Adsorption of Cu(II) Metal Ions
Heavy metals are known to seriously injure land plants and animals, including humans, as well as marine species when present in contaminated water. For the batch adsorption technique used in this study, Cu(II) ions were removed from an aqueous solution using an inexpensive environmentally friendly adsorbent prepared from the extracted pectin of ambarella fruit peel. The functional groups of the extracted pectin were studied using Fourier Transform Infrared Spectroscopy (FT-IR). Operational conditions like pH, contact time, and initial adsorbate concentration were investigated. FTIR characterization showed that pectin was successfully extracted from ambarella fruit peel with the appearance of the peaks at 3331.36 cm-1, 2924.02 cm-1, 1727.38 cm-1, 1626.20 cm-1, 1329.31cm−1, 1232.43cm−1, 994.18 cm−1 and these peaks have similar characteristic with a commercial pectin. The maximum uptake of Cu(II) ions was obtained at a pH of 4, a contact time of 90 min, an initial metal concentration of 150 ppm. The extracted pectin has an adsorption capacity of 6.5860 mg/g for the removal of Cu(II) ions from aqueous solution under the optimum adsorption conditions. In addition, the data obtained from contacting the extracted pectin of ambarella fruit peel in Batang Arau River water showed an adsorption capacity of 0.0376 mg/g. Therefore, the pectin that was extracted from the peel of the ambarella fruit could be used to filter out Cu(II) ions from aqueous solutions.
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