Chitosan/UiO-66 composites as high-performance adsorbents for the removal of methyl orange in aqueous solution

被引：67

作者：

Ediati, R. ^{[1
]}

Aulia, W. ^{[1
]}

Nikmatin, B. A. ^{[1
]}

Hidayat, A. R. P. ^{[1
]}

Fitriana, U. M. ^{[1
]}

Muarifah, C. ^{[1
]}

Sulistiono, D. O. ^{[1
]}

Martak, F. ^{[1
]}

Prasetyoko, D. ^{[1
]}

机构：

[1] Inst Teknol Sepuluh Nopember, Fac Sci & Data Analyt, Dept Chem, Jl Arif Rahman Hakim,Kampus ITS Keputih Sukolilo, Surabaya 60111, Indonesia

来源：

MATERIALS TODAY CHEMISTRY | 2021年 / 21卷

关键词：

Zr-MOF; Chitosan/Zr-MOF; Dye; Adsorption kinetics and thermodynamic; Wastewater treatment; METAL-ORGANIC FRAMEWORK; SELECTIVE DYE ADSORPTION; PLAUSIBLE MECHANISMS; HIGH-EFFICIENCY; ANIONIC DYES; CONGO RED; KINETICS; UIO-66; BLUE; THERMODYNAMICS;

D O I：

10.1016/j.mtchem.2021.100533

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

UiO-66 and chitosan/UiO-66 composites were successfully synthesized by varying the mass addition of chitosan which were 0%, 2.5%, 5%, 10%, and 20% of the mass of UiO-66, denoted as UiO-66, Cs(2.5)/UiO-66, Cs(5)/UiO-66, Cs(10)/UiO-66, and Cs(20)/UiO-66, respectively. UiO-66 was modified with chitosan using the impregnation process. The X-ray diffraction patterns of the synthesized materials showed characteristic peaks at 2 theta of 7.25 degrees and 8.39 degrees, which matched to that of the reported UiO-66. In addition, the Fourier transform infrared spectroscopy spectra of the materials showed absorption bands at the same wavenumber as UiO-66 and chitosan previously reported. The surface morphology of UiO-66 observed from scanning electron microscopy images was in the form of agglomerated small cube particles, where the smaller particles were observed for Cs(10)/UiO-66. From the N-2 adsorption isotherms, it was found that the Brunauer-Emmett-Teller surface areas of UiO-66, Cs(5)/UiO-66, and Cs(10)/UiO-66 materials were 825.7 m(2)/g, 835.4 m(2)/g, and 882.2 m(2)/g, respectively. The results of the study on adsorption of methyl orange in aqueous solutions showed that Cs(5)/UiO-66 had the highest adsorption capacity of 370.37 mg/g and followed the pseudo-second-order adsorption kinetic with a Langmuir isotherm model. (C) 2021 Elsevier Ltd. All rights reserved.

引用

页数：13

共 82 条

[1] Cu-BTC@cotton composite: design and removal of ethion insecticide from water [J].