Adsorption of Acid Red 88 Anionic Dye from Aqueous Solution onto ZnO/ZnMn2O4 Nanocomposite: Equilibrium, Kinetics, and Thermodynamics

Konicki, Wojciech; Sibera, D.; Narkiewicz, U.

doi:10.15244/pjoes/70003

Cited by 16 publications

(11 citation statements)

References 46 publications

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“…At this condition, the dye removal increased to 94% by prolonging the time from 5 to 30 min. The fast adsorption of the dye at the initial stage is because of the existence of vacant active sites on the MNCTS surface 36 . The dye adsorption slows down when the equilibrium is reached.…”

Section: Resultsmentioning

confidence: 99%

A novel functionalized chitosan nanoadsorbent for efficient elimination of malachite green from aqueous media

Tohidi

Chaibakhsh

Mohammadi

2020

Env Prog and Sustain Energy

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In this study, a novel chitosan‐based nanoadsorbent has been synthesized by the reaction between nanochitosan and epoxy‐triazinetrione. The commercial cationic dye, malachite green, was chosen as a model dye in order to inspect the adsorption efficiency of the prepared adsorbent. The kinetics and thermodynamics of the adsorption process have been explored. According to the results, the Freundlich isotherm and pseudo‐second‐order model can well elucidate the adsorption process. The obtained thermodynamic parameters indicated that the removal process was spontaneous and endothermic (ΔH° = 95.0 kJ mol−1). The effects of several parameters on the dye elimination were studied using the response surface methodology approach. A high adsorption efficiency (95%) was obtained at 29.5 min, pH 7.9, and 7.5 mg of the adsorbent. At this condition, the removal efficiency of the unmodified adsorbent was 65.4%. The novel epoxy‐triazinetrione‐modified chitosan nanosorbent was found to be highly adequate for the treatment of wastewaters containing organic dyes.

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Section: Resultsmentioning

confidence: 99%

A novel functionalized chitosan nanoadsorbent for efficient elimination of malachite green from aqueous media

Tohidi

Chaibakhsh

Mohammadi

2020

Env Prog and Sustain Energy

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“… Microwave hydrothermal synthesis of ZnO nanostructures with additional heat treatment, where the literature review results [ 585 , 640 , 641 , 642 , 643 , 644 , 645 , 646 , 647 , 648 , 649 , 650 , 651 , 652 , 653 , 654 , 655 , 656 , 657 , 658 , 659 , 660 , 661 , 662 , 663 , 664 , 665 , 666 , 667 , 668 , 669 , 670 , 671 , 672 , 673 ] are summarised in Table 6 . Microwave hydrothermal synthesis of ZnO nanocomposites or ZnO hybrid nanostructures without any additional heat treatment, where the literature review results [ 674 , 675 , 676 , 677 , 678 , 679 , 680 , 681 , ...…”

Section: Microwave Hydrothermal Synthesis Of Znomentioning

confidence: 99%

“…Microwave hydrothermal synthesis of ZnO nanocomposites or ZnO hybrid nanostructures without any additional heat treatment, where the literature review results [ 674 , 675 , 676 , 677 , 678 , 679 , 680 , 681 , 682 , 683 , 684 , 685 , 686 , 687 , 688 , 689 , 690 , 691 , 692 , 693 , 694 , 695 , 696 , 697 , 698 , 699 , 700 , 701 , 702 , 703 , 704 , 705 , 706 , 707 , 708 , 709 , 710 , 711 , 712 , 713 , 714 , 715 , 716 , 717 , 718 , 719 ,…”

Section: Microwave Hydrothermal Synthesis Of Znomentioning

confidence: 99%

“…The microwave hydrothermal synthesis enables obtaining the following composite and hybrid materials: ZnO/ZnMn 2 O [ 676 , 677 ], ZnO/ZnFe 2 O 4 [ 680 , 681 , 682 , 683 , 684 , 685 ], ZnO/ZnS [ 700 ], Au-decorated ZnO [ 701 , 702 , 738 ], Ag-decorated ZnO [ 638 , 703 , 704 , 705 , 706 , 735 ], reduced graphene oxide [ 707 , 708 , 709 , 710 , 711 , 712 , 713 ], ZrO 2 coated ZnO [ 717 ], Fe 3 O 4 /ZnO/AgBr [ 719 ], MoS 2 /ZnO [ 720 ], ZnO doped CeO 2 [ 721 ], mesoporous Si@ZnO [ 722 ], ZnO/zinc aluminium hydroxide [ 723 ], ZnO/TiO 2 [ 724 , 725 ], ZnO/CuO [ 726 ], CdO-ZnO [ 730 ], and In 2 O 3 -ZnO [ 732 ].…”

Section: Microwave Hydrothermal Synthesis Of Znomentioning

confidence: 99%

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A Review of Microwave Synthesis of Zinc Oxide Nanomaterials: Reactants, Process Parameters and Morphologies

2020

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Zinc oxide (ZnO) is a multifunctional material due to its exceptional physicochemical properties and broad usefulness. The special properties resulting from the reduction of the material size from the macro scale to the nano scale has made the application of ZnO nanomaterials (ZnO NMs) more popular in numerous consumer products. In recent years, particular attention has been drawn to the development of various methods of ZnO NMs synthesis, which above all meet the requirements of the green chemistry approach. The application of the microwave heating technology when obtaining ZnO NMs enables the development of new methods of syntheses, which are characterised by, among others, the possibility to control the properties, repeatability, reproducibility, short synthesis duration, low price, purity, and fulfilment of the eco-friendly approach criterion. The dynamic development of materials engineering is the reason why it is necessary to obtain ZnO NMs with strictly defined properties. The present review aims to discuss the state of the art regarding the microwave synthesis of undoped and doped ZnO NMs. The first part of the review presents the properties of ZnO and new applications of ZnO NMs. Subsequently, the properties of microwave heating are discussed and compared with conventional heating and areas of application are presented. The final part of the paper presents reactants, parameters of processes, and the morphology of products, with a division of the microwave synthesis of ZnO NMs into three primary groups, namely hydrothermal, solvothermal, and hybrid methods.

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“…This group of dyes is documented to be eco-friendly and slightly poisonous as compared to synthetic dyes [22][23][24]. However, it has been reported that some natural dyes may cause mutagenic effects such as safflower yellow, and elderberry color and continuous inhalation of carmine can cause asthma, but it can be said that some even have a curative impact such as turmeric with its antibacterial properties due to its coloring component, curcumin [25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Statistical Modeling for the Extraction of Dye from Natural Source and Industrial Applications

Jabeen¹,

Ali²,

Nadeem³

et al. 2019

Pol. J. Environ. Stud.

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This study is intended to scrutinize the consequence of extraction conditions of Lawsonia Inermis (henna) leaves on the color strength values of dyed fabric. Extraction pH, M:L ratio, and time were optimized using central composite design (CCD) under response surface methodology (RSM). We investigated how the maximum colour strength values were obtained at pH 6.64 in about 78 minutes extraction with an M:L ratio of 1:44. ANOVA results showed that all the extraction parameters significantly affect the colour strength values of dyed samples. 99% variation in the response was indicated in the 2 nd-order regression equation for K/S. The fastness properties with respect to light, washing, and rubbing were quite satisfactory of dyed samples under optimized extraction conditions.

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Adsorption of Acid Red 88 Anionic Dye from Aqueous Solution onto ZnO/ZnMn2O4 Nanocomposite: Equilibrium, Kinetics, and Thermodynamics

Cited by 16 publications

References 46 publications

A novel functionalized chitosan nanoadsorbent for efficient elimination of malachite green from aqueous media

A novel functionalized chitosan nanoadsorbent for efficient elimination of malachite green from aqueous media

A Review of Microwave Synthesis of Zinc Oxide Nanomaterials: Reactants, Process Parameters and Morphologies

Statistical Modeling for the Extraction of Dye from Natural Source and Industrial Applications

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