Preparation of cellulose-based composite hydrogels for the removal of methylene blue

被引：3

作者：

Aymara L. ^{[1
,2
]}

Herrera N.G. ^{[1
,2
]}

Lezama H.H. ^{[1
,2
]}

Villacrés N.A. ^{[3
]}

机构：

[1] Faculty of Natural Sciences and Mathematics, Federico Villarreal National University, Lima

[2] Research, Development, and Innovation Group in Green Chemistry and Biotechnology - GIDIVEB, Federico Villarreal National University, Lima

[3] Faculty of Sciences, National University of Engineering, Lima

来源：

Polymers from Renewable Resources | 2024年 / 15卷 / 01期

关键词：

cellulose; Composite hydrogel; environmental pollution; methylene blue;

D O I：

10.1177/20412479231212947

中图分类号：

学科分类号：

摘要：

The discharge of dyes, including methylene blue (MB), contributes to environmental pollution. Adsorption is one of the most widely used techniques for removing colorants from water, with hydrogels being the materials that have attracted the most attention due to their excellent adsorption capacity. In this work, hydrogels composed of cellulose/pectin/starch were synthesized to remove MB dissolved in water. For the characterization of the hydrogel, Fourier-Transform Infrared, Thermogravimetry/Differential Thermal Analysis, XRD, and Scanning Electron Microscopy techniques were applied. At pH 9, the maximum swelling capacity (326.1%) of the hydrogel and the maximum MB removal percentage (37.05%) were obtained. The Weber-Morris diffusion kinetic model indicated that other adsorption mechanisms exist in addition to the diffusion process of MB through the hydrogel pores. Temkin's model better described the adsorption process, therefore an interaction between the adsorbate and the adsorbent surface is assumed, while the MB adsorption kinetics at pH 5 followed a pseudo-first-order model; and at pH 7 and pH 9, they followed a pseudo-second-order model. © The Author(s) 2023.

引用

页码：133 / 151

页数：18

共 69 条

[1]

Flores Alarcon M.A.D., Revilla Pacheco C., Garcia Bustos K., Et al., Efficient dye removal from real textile wastewater using orange seed powder as suitable bio-adsorbent and membrane technology, Water, 14, (2022)

[2]

Slama H.B., Chenari Bouket A., Pourhassan Z., Et al., Diversity of synthetic dyes from textile industries, discharge impacts and treatment methods, Appl Sci, 11, (2021)

[3]

Wawrzkiewicz M., Kucharczyk A., Adsorptive removal of direct azo dyes from textile wastewaters using weakly basic anion exchange resin, Int J Mol Sci, 24, (2023)

[4]

Moosavi S., Li R.Y.M., Lai C.W., Et al., Methylene blue dye photocatalytic degradation over synthesised Fe3O4/AC/TiO2 nano-catalyst: degradation and reusability studies, Nanomaterials, 10, (2020)

[5]

Khan I., Saeed K., Zekker I., Et al., Review on methylene blue: its properties, uses, toxicity and photodegradation, Water, 14, (2022)

[6]

Gul S., Kanwal M., Qazi R.A., Et al., Efficient removal of methyl red dye by using bark of hopbush, Water, 14, (2022)

[7]

Mohammed Ali H.S.H., Sumiya A.Y., Anwar Y., Et al., Revealing the effect of MnO2, activated carbon and MnO2/activated carbon on chitosan polymer host fabricated Co NPs: antibacterial performance and degradation of organic compounds, Polymers, 14, (2022)

[8]

Rafatullah M., Sulaiman O., Hashim R., Et al., Adsorption of methylene blue on low-cost adsorbents: a review, J Hazard Mater, 177, pp. 70-80, (2010)

[9]

Katheresan V., Kansedo J., Lau S., Efficiency of various recent wastewater dye removal methods: a review, J Environ Chem Eng, 6, pp. 4676-4697, (2018)

[10]

Rathi B., Kumar P., Application of adsorption process for effective removal of emerging contaminants from water and wastewater, Environ Pollut, 280, (2021)

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