Malachite green adsorption onto natural zeolite and reuse by microwave irradiation

Han, Runping; Wang, Yu; Sun, Qingjie; Wang, Lulu; Song, Jiyun; He, Xiaotian; Dou, Chanchan

doi:10.1016/j.jhazmat.2009.10.118

Cited by 140 publications

(46 citation statements)

References 31 publications

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“…Han et al (2010) investigated the use of natural zeolite, obtained from Xinyang city in China, for the removal of MG from aqueous solution. The rate constants of sorption for different kinetic models were calculated.…”

Section: Srmentioning

confidence: 99%

Malachite green “a cationic dye” and its removal from aqueous solution by adsorption

2016

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Adsorption can be efficiently employed for the removal of various toxic dyes from water and wastewater. In this article, the authors reviewed variety of adsorbents used by various researchers for the removal of malachite green (MG) dye from an aqueous environment. The main motto of this review article was to assemble the scattered available information of adsorbents used for the removal of MG to enlighten their wide potential. In addition to this, various optimal experimental conditions (solution pH, equilibrium contact time, amount of adsorbent and temperature) as well as adsorption isotherms, kinetics and thermodynamics data of different adsorbents towards MG were also analyzed and tabulated. Finally, it was concluded that the agricultural solid wastes and biosorbents such as biopolymers and biomass adsorbents have demonstrated outstanding adsorption capabilities for removal of MG dye.

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Section: Srmentioning

confidence: 99%

Malachite green “a cationic dye” and its removal from aqueous solution by adsorption

2016

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“…Therefore, the environmental pollution caused by the MG remains a difficult problem. Several methods have been applied with limited success to remove MG from wastewater, such as adsorption, chemical precipitation, photodegradation, osmosis and membrane filtration (Rahman et al 2005;Papinutti et al 2006;Hameed and Lee 2009;Han et al 2010). These methods are not only costly and inefficient, but also produce large amounts of sludge.…”

Section: Introductionmentioning

confidence: 99%

Biodegradation of malachite green by Pseudomonas sp. strain DY1 under aerobic condition: characteristics, degradation products, enzyme analysis and phytotoxicity

Wang

et al. 2011

Ecotoxicology

101

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Malachite green (MG), a widely-used and recalcitrant dye, has been confirmed to be carcinogenic and mutagenic against many organisms. The main objective of this study is to investigate the capability of Pseudomonas sp. strain DY1 to decolorize MG, and to explore the possible mechanism. The results showed that this strain demonstrated high decolorizing capability (90.3-97.2%) at high concentrations of MG (100-1,000 mg/l) under shaking condition within 24 h. In static conditions, lower but still effective decolorization (78.9-84.3%) was achieved. The optimal pH and temperature for the decolorization was pH 6.6 and 28-30°C, respectively. Mg(2+) and Mn(2+) (1 mM) were observed to significantly enhance the decolorization. The intermediates of the MG degradation under aerobic condition identified by UV-visible, GC-MS and LC-MS analysis included malachite green carbinol, (dimethyl amino-phenyl)-phenyl-methanone, N,N-dimethylaniline, (methyl amino-phenyl)-phenyl-methanone, (amino phenyl)-phenyl methanone and di-benzyl methane. The enzyme analysis indicated that Mn-peroxidase, NADH-DCIP and MG reductase were involved in the biodegradation of MG. Moreover, phytotoxicity of MG and detoxification for MG by the strain were observed. Therefore, this strain could be potentially used for bioremediation of MG.

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“…Regeneration of saturated adsorbent was essential to evaluate the reusability of the adsorbents [13,14]. In this work, 0.1 mol L -1 NaOH solution as desorption agent was tested in batch system.…”

Section: Resultsmentioning

confidence: 99%

Adsorption of 2,4-Dichlorophenol onto Cationic Surfactant-Modified Wheat Straw in Batch Mode

Liu¹,

Zhang²,

Bi³

et al. 2017

dtetr

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ABSTRACT It is essential to remove 2,4-dichlorophenol (DCP) from solution. In this paper, wheat straw (WS) was modified by a cationic surfactant, cetyltrimethyl ammonium bromide (CTAB), to improve adsorption capacity for the removal of DCP from aqueous solutions in batch mode. Several experimental factors like initial pH, common salts concentration, contact time, solution temperature were evaluated. Solution pH within 4-9 was in favor of adsorption and common salts had slight effect on adsorption quantity. The adsorption capacity was up to 45.5 mg g -1 and the process was exothermic. Henry equation was better to fit the adsorption equilibrium data. DCP-loaded MWS can be regenerated by 0.1 mol L -1 NaOH. It was concluded that MWS may be good adsorbent to remove DCP from solution.

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Malachite green adsorption onto natural zeolite and reuse by microwave irradiation

Cited by 140 publications

References 31 publications

Malachite green “a cationic dye” and its removal from aqueous solution by adsorption

Malachite green “a cationic dye” and its removal from aqueous solution by adsorption

Biodegradation of malachite green by Pseudomonas sp. strain DY1 under aerobic condition: characteristics, degradation products, enzyme analysis and phytotoxicity

Adsorption of 2,4-Dichlorophenol onto Cationic Surfactant-Modified Wheat Straw in Batch Mode

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