Adsorption of basic fuchsin using soybean straw hydrolyzed by subcritical water.

IF 14.8 1区医学 Q1 OBSTETRICS & GYNECOLOGY

Human Reproduction Update Pub Date : 2022-09-01 Epub Date: 2022-05-11 DOI:10.1007/s11356-022-20652-w

Natiela Caponi, Luis F O Silva, Marcos L S Oliveira, Dison S P Franco, Matias S Netto, Felipe Vedovatto, Marcus V Tres, Giovani L Zabot, Ederson R Abaide, Guilherme L Dotto

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引用次数: 6

Abstract

The valorization of agro-industrial residues can be improved through their full use, making the production of second-generation ethanol viable. In this scenario, hydrolyzed soybean straw generated from a subcritical water process was applied to the basic fuchsin adsorption. At pH eight, a high adsorption capacity was obtained. The mass test results showed that basic fuchsin's removal and adsorption capacity could be maximized with an adsorbent dosage of 0.9 g L^-1. The linear driving force model was suitable for predicting the kinetic profile, and the kinetic curves showed that equilibrium was reached with only 30 min of contact time. Besides, the Langmuir model was the best to predict the adsorption isotherms. The thermodynamic parameters revealed a spontaneous and endothermic process. At 328 K, there is maximum adsorption capacity (72.9 mg g^-1). Therefore, it can be stated that this material could be competitive in terms of adsorption capacity coupled with the idea of full use of waste.

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利用亚临界水水解的大豆秸秆吸附碱性品红。

通过充分利用农用工业残留物，可以提高其价值，从而使第二代乙醇的生产变得可行。在此方案中，亚临界水工艺产生的水解大豆秸秆被用于碱性紫胶吸附。在 pH 值为 8 时，获得了较高的吸附能力。质量试验结果表明，当吸附剂用量为 0.9 g L-1 时，碱性品红的去除率和吸附量均可达到最大。线性驱动力模型适用于预测动力学曲线，动力学曲线显示，只需 30 分钟的接触时间就能达到平衡。此外，Langmuir 模型是预测吸附等温线的最佳模型。热力学参数表明这是一个自发的内热过程。在 328 K 时，吸附容量最大（72.9 mg g-1）。因此，可以说这种材料在吸附能力方面具有竞争力，同时还能充分利用废物。

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

Human Reproduction Update 医学-妇产科学

CiteScore

28.80

自引率

1.50%

发文量

期刊介绍： Human Reproduction Update is the leading journal in its field, boasting a Journal Impact FactorTM of 13.3 and ranked first in Obstetrics & Gynecology and Reproductive Biology (Source: Journal Citation ReportsTM from Clarivate, 2023). It specializes in publishing comprehensive and systematic review articles covering various aspects of human reproductive physiology and medicine. The journal prioritizes basic, transitional, and clinical topics related to reproduction, encompassing areas such as andrology, embryology, infertility, gynaecology, pregnancy, reproductive endocrinology, reproductive epidemiology, reproductive genetics, reproductive immunology, and reproductive oncology. Human Reproduction Update is published on behalf of the European Society of Human Reproduction and Embryology (ESHRE), maintaining the highest scientific and editorial standards.