Improved removal of malachite green from aqueous solution using chemically modified cellulose by anhydride

Zhou, Yanmei; Min, Yinghao; Qiao, Han; Huang, Qingjiu; Wang, Enze; Ma, Tongmei

doi:10.1016/j.ijbiomac.2014.12.020

Cited by 67 publications

(24 citation statements)

References 41 publications

(165 reference statements)

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“…In the present study, the equilibrium data were analyzed using both the Langmuir and Freundlich isotherm models at different temperatures. The adsorption isotherm indicates how the adsorption molecules are distributed between the liquid phase and the solid phase when the adsorption process reaches an equilibrium state, the parameters of equilibrium isotherms often give information on adsorption mechanism, surface properties and affinity of the adsorbent [15,42].…”

Section: Adsorption Isothermsmentioning

confidence: 99%

Removal of Malachite Green Dye from Aqueous Solution by Adsorption Using Modified and Unmodified Local Agriculture Waste

Bashanaini¹

2019

SJAC

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Local agriculture waste (Shell's seeds of Ziziphus spina christi) (SZC), in both its unmodified SZC and acidmodified (SZC-AC) forms, was investigated for its potential use as a low-cost adsorbent for the removal of malachite green (MG). Characterization of the adsorbents was carried out using scanning electron microscope (SEM), Fourier transforms infrared spectroscopy (FTIR), pH surface, Boehm titration, including, other physical and chemical properties of adsorbent. The effects of initial dye concentration, contact time, solution of pH, temperature and adsorbent dosage were investigated in detail by batch adsorption experiments. For the adsorption of MG were fitted using Langmuir and Freundlich isotherm models, equilibrium isotherms were applicable with maximum monolayer adsorption capacity wear 48.780 mg/g and 370.370 mg/g for the raw shells seeds of Ziziphus spina christi (SZC) and the activated carbon prepared from shells seeds by sulphuric acid SZC-AC, respectively. Kinetics studies showed that both followed the pseudo-second order. Thermodynamics studies indicated that the adsorption of MG was spontaneous on SZC and SZC-AC, and the reactions were endothermic and exothermic, respectively. The proposed adsorbents were successfully applied to the removal of malachite green dye from different water samples with a recovery % >95% and a relative standard deviation (RSD%) <3%.

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Section: Adsorption Isothermsmentioning

confidence: 99%

Removal of Malachite Green Dye from Aqueous Solution by Adsorption Using Modified and Unmodified Local Agriculture Waste

Bashanaini¹

2019

SJAC

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“…Thus, the S4 adsorbent possesses high reusability for treatment of MB dye. On the basis of the facile synthetic process, favorable adsorption capacity and high reusability of the S4 adsorbent, the mCMS/PVA composite gels hold great promises for the removal of dyes from wastewater [46].…”

Section: Regeneration Studiesmentioning

confidence: 99%

Facile fabrication of magnetic carboxymethyl starch/poly(vinyl alcohol) composite gel for methylene blue removal

Gong

Zhang

Cheng

et al. 2015

International Journal of Biological Macromolecules

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“…In addition, it is also used as an antiseptic and fungicidal for humans, and as anti-parasitical, antibacterial, and antifungal in aquaculture and commercial fish hatchery industries due to its low cost, ready availability, efficacy, and deficiency of proper substitute [1]. Due to its mutagenic and carcinogenic nature, it can cause severe effects on the nervous system, reproductive system, liver, brain, and kidney [2,3]. Apart from causing undesirable health effects, the presence of even very low concentration of MG in the aqueous environment can color large water bodies which decrease photosynthesis by obstructing light penetration and thereby inhibit the growth of aquatic life [4].…”

Section: Introductionmentioning

confidence: 99%

Nanoparticles Loaded Biopolymer as Effective Adsorbent for Adsorptive Removal of Malachite Green from Aqueous Solution

Raval

Shah

2016

Water Conserv Sci Eng

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In the present study, the biocompatible nanocomposite (nickel oxide nanoparticles loaded chitin beads (NiO NPs/CH)) was synthesized, characterized by using scanning electron microscopy (SEM) and Fourier transform infrared (FT-IR) analysis and then study its prospective application towards adsorption of malachite green (MG) dye. Further, batch studies were conducted to evaluate the adsorption capacity of nanocomposite, and the effects of various parameters, i.e., pH, adsorbate concentration, contact time, dosage of adsorbent and temperature, were investigated. The results revealed that the amount of MG adsorbed on the adsorbent increases with increasing initial dye concentration and by decreasing temperature. The equilibrium MG adsorption data on NiO NPs/CH were best described by the Langmuir isotherm model. Besides, the adsorption kinetics followed pseudosecond-order rate equation. Thermodynamic parameters such as free energy of adsorption (ΔG°), enthalpy (ΔH°), and entropy (ΔS°) changes were calculated, and the results suggested that the adsorption process was spontaneous and exothermic in nature. Based on the results, it was concluded that the nanocomposite can be sustainably prepared and efficiently used for the adsorptive removal of MG from colored aqueous solutions.

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Improved removal of malachite green from aqueous solution using chemically modified cellulose by anhydride

Cited by 67 publications

References 41 publications

Removal of Malachite Green Dye from Aqueous Solution by Adsorption Using Modified and Unmodified Local Agriculture Waste

Removal of Malachite Green Dye from Aqueous Solution by Adsorption Using Modified and Unmodified Local Agriculture Waste

Facile fabrication of magnetic carboxymethyl starch/poly(vinyl alcohol) composite gel for methylene blue removal

Nanoparticles Loaded Biopolymer as Effective Adsorbent for Adsorptive Removal of Malachite Green from Aqueous Solution

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