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源自扁桃(Prunus amygdalus L.)的低成本生物材料对水中染料的吸附特性

Adsorption properties of low-cost biomaterial derived from Prunus amygdalus L. for dye removal from water.

作者信息

Deniz Fatih

机构信息

Nigar Erturk Trade Vocational High School, 27590 Gaziantep, Turkey.

出版信息

ScientificWorldJournal. 2013 Jul 9;2013:961671. doi: 10.1155/2013/961671. Print 2013.

DOI:10.1155/2013/961671
PMID:23935442
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3725893/
Abstract

The capability of Prunus amygdalus L. (almond) shell for dye removal from aqueous solutions was investigated and methyl orange was used as a model compound. The effects of operational parameters including pH, ionic strength, adsorbent concentration and mesh size, dye concentration, contact time, and temperature on the removal of dye were evaluated. The adsorption kinetics conformed to the pseudo-second-order kinetic model. The equilibrium data pointed out excellent fit to the Langmuir isotherm model with maximum monolayer adsorption capacity of 41.34 mg g(-1) at 293 K. Thermodynamic analysis proved a spontaneous, favorable, and exothermic process. It can be concluded that almond shell might be a potential low-cost adsorbent for methyl orange removal from aqueous media.

摘要

研究了扁桃(杏仁)壳从水溶液中去除染料的能力,并以甲基橙作为模型化合物。评估了包括pH值、离子强度、吸附剂浓度和筛目尺寸、染料浓度、接触时间以及温度等操作参数对染料去除的影响。吸附动力学符合准二级动力学模型。平衡数据表明与朗缪尔等温线模型拟合良好,在293 K时最大单层吸附容量为41.34 mg g⁻¹。热力学分析证明该过程是自发、有利且放热的。可以得出结论,杏仁壳可能是一种从水介质中去除甲基橙的潜在低成本吸附剂。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9570/3725893/af10f3204164/TSWJ2013-961671.006.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9570/3725893/af10f3204164/TSWJ2013-961671.006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9570/3725893/54fcf419659a/TSWJ2013-961671.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9570/3725893/041576b4f07e/TSWJ2013-961671.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9570/3725893/1ecef6f2ebc3/TSWJ2013-961671.003.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9570/3725893/af10f3204164/TSWJ2013-961671.006.jpg

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