Magnesium oxide nanoparticles modified biochar derived from tea wastes for enhanced adsorption of o-chlorophenol from industrial wastewater

被引：0

作者：

Chu T.T.H. ^{[1
]}

Tran T.M.N. ^{[1
]}

Pham M.T. ^{[1
]}

Viet N.M. ^{[2
]}

Thi H.P. ^{[3
,4
]}

机构：

[1] Department of Chemistry, Faculty of Building Materials, Ha Noi University of Civil Engineering (HUCE), Giai Phong, Hai Ba Trung, Hanoi

[2] VNU Key Laboratory of Advanced Material for Green Growth, Faculty of Ch, emistry, VNU University of Science, 334 Nguyen Trai Street, Thanh Xuan, Hanoi

[3] Laboratory of Environmental Sciences and Climate Change, Institute for Computational Science and Artificial Intelligence, Van Lang University, Ho Chi Minh City

[4] Faculty of Environment, School of Technology, Van Lang University, Ho Chi Minh City

来源：

Chemosphere | 2023年 / 337卷

关键词：

Adsorption; Biochar; Industrial wastewater; Magnesium oxide; O-chlorophenol; Tea wastes;

D O I：

10.1016/j.chemosphere.2023.139342

中图分类号：

学科分类号：

摘要：

In this work, magnesium oxide nanoparticles supported biochar derived from tea wastes (MgO@TBC) was prepared as an effective adsorbent for removing hazardous o-chlorophenol (o-CP) from industrial wastewater. The surface area, porous structure, surface functional groups and surface charge of tea waste biochar (TBC) significantly enhanced after the modification process. The best uptake performance of o-CP was found at pH = 6.5 and 0.1 g of MgO@TBC adsorbent. According to the adsorption isotherm, the adsorption of o-CP onto MgO@TBC followed the Langmuir model with a maximum uptake capacity of 128.7 mg/g, which was 26.5% higher than TBC (94.6 mg/g). MgO@TBC could be reused for eight cycles with a high o-CP uptake performance (over 60%). Besides, it also exhibited good removal performance of o-CP from industrial wastewater with a removal rate of 81.7%. The adsorption behaviors of o-CP onto MgO@TBC are discussed based on the experimental results. This work may provide information to prepare an effective adsorbent for removing hazardous organic contaminants in wastewater. © 2023 Elsevier Ltd

引用

共 29 条

[1]

Balakrishnan A., Chinthala M., Polagani R.K., Vo D.V.N., Removal of tetracycline from wastewater using G-C<sub>3</sub>n<sub>4</sub> based photocatalysts: a review, Environ. Res., 216, (2023)

[2]

Guo Y., Gou X., Xu Z., Skare M., Carbon pricing mechanism for the energy industry: a bibliometric study of optimal pricing policies, Acta Montan. Slovaca, 27, 1, pp. 49-69, (2022)

[3]

Guo Z., Kang Y., Wu H., Li M., Hu Z., Zhang J., Enhanced removal of phenanthrene and nutrients in wetland sediment with metallic biochar: performance and mechanisms, Chemosphere, 327, (2023)

[4]

Hadi S., Taheri E., Amin M.M., Fatehizadeh A., Aminabhavi T.M., Adsorption of 4-chlorophenol by magnetized activated carbon from pomegranate husk using dual stage chemical activation, Chemosphere, 270, (2021)

[5]

He X., Li J., Meng Q., Guo Z., Zhang H., Liu Y., Enhanced adsorption capacity of sulfadiazine on tea waste biochar from aqueous solutions by the two-step sintering method without corrosive activator, J. Environ. Chem. Eng., 9, 1, (2021)

[6]

He Y., Chen Y., Li J., Wang D., Song S., Dong F., He Z., Efficient degradation of 2,3,5-trimethylpyrazine by catalytic ozonation over MnOx supported on biochar derived from waste tea leaves, Chem. Eng. J., 464, (2023)

[7]

Keerthanan S., Bhatnagar A., Mahatantila K., Jayasinghe C., Ok Y.S., Vithanage M., Engineered tea-waste biochar for the removal of caffeine, a model compound in pharmaceuticals and personal care products (PPCPs), from aqueous media, Environ. Technol. Innov., 19, (2020)

[8]

Li L., Zou D., Xiao Z., Zeng X., Zhang L., Jiang L., Liu F., Biochar as a sorbent for emerging contaminants enables improvements in waste management and sustainable resource use J, Clean. Prod., 210, pp. 1324-1342, (2019)

[9]

Li B., Zhang Y., Xu J., Mei Y., Fan S., Xu H., Effect of carbonization methods on the properties of tea waste biochars and their application in tetracycline removal from aqueous solutions, Chemosphere, 267, (2021)

[10]

Li B., Zhang Y., Xu J., Xie Z., Tang J., Li X., Fan S., Simultaneous carbonization, activation, and magnetization for producing tea waste biochar and its application in tetracycline removal from the aquatic environment, J. Environ. Chem. Eng., 9, 4, (2021)

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