Trichloroacetic acid-modulated synthesis of polyoxometalate@UiO-66 for selective adsorption of cationic dyes

Zeng, Liang; Xiao, Ling; Long, Yangke; Shi, Xiaowen

doi:10.1016/j.jcis.2018.01.070

Cited by 102 publications

(37 citation statements)

References 41 publications

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“…UiO-66-based composites, including polymer (polymer@UiO-66) [3], nanoparticles (NPs@UiO-66) [4], and MOF (MOF@UiO-66) [5] have become a focus of research due to the high stability of UiO-66. Owing to the interface between single MOF, the MOF@MOF structures can provide new capabilities [6] and have been widely employed for gas storage and catalysis.…”

Section: Introductionmentioning

confidence: 99%

Selective Dye Adsorption by Zeolitic Imidazolate Framework-8 Loaded UiO-66-NH2

Zhang

Shi

et al. 2019

Nanomaterials

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In this study, Zeolitic Imidazolate Framework-8 (ZIF-8)-loaded UiO-66-NH2 was synthesized, characterized, and analyzed for its potential to efficiently remove dyes. The selective adsorption on ZIF-8-loaded UiO-66-NH2 or its parent MOFs (UiO-66-NH2 and ZIF-8) in the mixed dyes solution was explored, including anionic dye (methyl orange (MO)) and cationic dyes (methylene blue (MB) and rhodamine B (RhB)). ZIF-8-loaded UiO-66-NH2 displayed much better selectivity to MB than its parent MOFs. Adsorption capacity of ZIF-8-loaded UiO-66-NH2 (173 mg/g) toward MB was found to be 215% higher than UiO-66-NH2 (55 mg/g). A kinetics study based on adsorption data demonstrated that the adsorption process most closely matched with the model of pseudo-second-order kinetic and Langmuir isotherm. The adsorption was an exothermic and spontaneous physical process as revealed by the values of thermodynamic parameters. Furthermore, reusability of ZIF-8-loaded UiO-66-NH2 was investigated and revealed the significant regeneration efficiency in adsorption capacity for MB even after four adsorption cycles. Experimental results proved that the interaction between ZIF-8-loaded UiO-66-NH2 and MB was mainly affected by the mechanism, for instance, electrostatic interaction as well as π–π stacking interactions.

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Section: Introductionmentioning

confidence: 99%

Selective Dye Adsorption by Zeolitic Imidazolate Framework-8 Loaded UiO-66-NH2

Zhang

Shi

et al. 2019

Nanomaterials

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“…The decolorization efficiency was more than 80%, despite the adsorption-desorption cycle being run ten times. Other monomers, such as trichloroacetic acid, remove 99% of cationic dyes, such as malachite green and rhodamine B [74]. High adsorption capacities were recorded for rhodamine B, at 222.6 mg/g, and 190.6 mg/g for malachite green.…”

Section: Application Of Polymers In Wastewater Treatmentmentioning

confidence: 99%

The Application of Modified Natural Polymers in Toxicant Dye Compounds Wastewater: A Review

Ishak

Murshed

Akil

et al. 2020

Water

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The utilization of various types of natural and modified polymers for removing toxicant dyes in wastewater generated by the dye industry is reviewed in this article. Dye wastewater contains large amounts of metals, surfactants, and organic matter, which have adverse effects on human health, potentially causing skin diseases and respiratory problems. The removal of dyes from wastewaters through chemical and physical processes has been addressed by many researchers. Currently, the use of natural and modified polymers for the removal of dyes from wastewater is becoming more common. Although modified polymers are preferred for the removal of dyes, due to their biodegradability and non-toxic nature, large amounts of polymers are required, resulting in higher costs. Surface-modified polymers are more effective for the removal of dyes from the wastewater. A survey of 80 recently published papers demonstrates that modified polymers have outstanding dye removal capabilities, and thus have a high applicability in industrial wastewater treatment.

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“…Thus, the TGA results further conrm that element cerium is incorporated in the framework with no much inuence on its framework thermal stability. [42][43][44] 3.2. Dye adsorption performance 3.2.1.…”

Section: Synthesis and Characterizationmentioning

confidence: 99%