Optimización De La Síntesis De Nanopigmentos De Origen Natural Para Biopolímeros Mediante El Uso De Diseño De Experimentos.

Vicent, Bárbara Micó

doi:10.4995/thesis/10251/59449

Cited by 4 publications

(4 citation statements)

References 132 publications

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“…Those obtained artificially in the laboratory have been manipulated with the aim of modifying and increasing their usability. (Micó-Vicent, 2016). The objective of this work is to reproduce the adsorption results that have been carried out in previous studies which explain the capacity of nanoclays, as has been shown in previous works (Carretero et al, 2007;Guillermin et al, 2019;López Arbeloa et al, 2002;Moujahid et al, 2019;Ogawa et al, 2017) and also to demonstrate experimentally its reuse, either by achieving desorption of the dye or also how the product obtained from the adsorption of the dye by clay can be used in another textile process such as printing on a polyester / cotton fabrics with acceptable fastness results.…”

Section: Introductionmentioning

confidence: 79%

Reactive dye adsorption desorption and stamping by halloysite

López-Rodríguez

Micó-Vicent

Bou-Belda

et al. 2022

J APPL RES TECH ENG

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The scientific community is continuously developing new methods for the recovery and purification of water, since the precious resources of our planet are increasingly scarce and we must work to save and clean our waters. One of the methods used is the use of adsorbent and absorbent materials that remove from the water those substances that are harmful to the environment are nanoclays. In this work, the effect of a nanoclay, specifically Halloysite, to adsorb reactive dyes has been used as an example of a technique. As an example of this type of coloring substances, Reactive Yellow 2 has been used, which has been subjected to the adsorbent action of the mineral, having an adsorption of 78% in the proposed experiment. Subsequently, it has undergone a desorption process by applying temperature to the dye-clay hybrid, so that later, thanks to the effect of solvents (HCL and / or NaOH), the desorption process in aqueous solution can be completed, obtaining a recovery from the dye. up to 17.67% adsorbed, which is interpreted as a very good result. At the same time, the ability to stamp the HNT has been tested once the dye has been adsorbed and used on a PES / CO textile, demonstrating the viability of this process and evaluating its results by rubbing and washing fastness tests.

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Section: Introductionmentioning

confidence: 79%

Reactive dye adsorption desorption and stamping by halloysite

López-Rodríguez

Micó-Vicent

Bou-Belda

et al. 2022

J APPL RES TECH ENG

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“…One important distinction in mineral clay properties is the ability of some to change volume by adsorbing water molecules from other polar ions in their structure. This is called the swelling property [110]. In the following, the most significant clays used for the recovery of wastewater in the textile industry will be described.…”

Section: Nanoclaysmentioning

confidence: 99%

Uses of Nanoclays and Adsorbents for Dye Recovery: A Textile Industry Review

et al. 2021

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Wastewater recovery is one of the most pressing contaminant-related subjects in the textile industry. Many cleaning and recovery techniques have been applied in recent decades, from physical separation to chemical separation. This work reviews textile wastewater recovery by focusing on natural or synthetic nanoclays in order to compare their capabilities. Presently, a wide variety of nanoclays are available that can adsorb substances dissolved in water. This review summarizes and describes nanoclay modifications for different structures (laminar, tubular, etc.) to compare adsorption performance under the best conditions. This adsorbent capacity can be used in contaminant industries to recover water that can be used and be recontaminated during a second use to close the production circle. It explores and proposes future perspectives for the nanoclay hybrid compounds generated after certain cleaning steps. This is a critical review of works that have studied adsorption or desorption procedures for different nanoclay structures. Finally, it makes a future application proposal by taking into account the summarized pros and cons of each nanoclay. This work addresses contaminant reuse, where part of the employed dyes can be reused in printing or even dyeing processes, depending on the fixing capacity of the dye in the nanoclay, which is herein discussed.

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“…In an effort to recover all the natural resources that we enjoy, the use of nanocomposites and nanoclays has become more common in industry. When small amounts of nanoclays are incorporated into polymeric matrices, the result is called a nanocomposite [ 10 ]. Previous works have demonstrated the efficacy of this type of element and have achieved successes in corresponding trials [ 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

The Optimal Concentration of Nanoclay Hydrotalcite for Recovery of Reactive and Direct Textile Colorants

López-Rodríguez

Micó-Vicent

Bonet-Aracil

et al. 2022

IJMS

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Concerns about the health of the planet have grown dramatically, and the dyeing sector of the textile industry is one of the most polluting of all industries. Nanoclays can clean dyeing wastewater using their adsorption capacities. In this study, as a new finding, it was possible to analyze and quantify the amount of metal ions substituted by anionic dyes when adsorbed, and to determine the optimal amount of nanoclay to be used to adsorb all the dye. The tests demonstrated the specific amount of nanoclay that must be used and how to optimize the subsequent processes of separation and processing of the nanoclay. Hydrotalcite was used as the adsorbent material. Direct dyes were used in this research. X-ray diffraction (XRD) patterns allowed the shape recovery of the hydrotalcite to be checked and confirmed the adsorption of the dyes. An FTIR analysis was used to check the presence of characteristic groups of the dyes in the resulting hybrids. The thermogravimetric (TGA) tests corroborated the dye adsorption and the thermal fastness improvement. Total solar reflectance (TSR) showed increased radiation protection for UV-VIS-NIR. Through the work carried out, it has been possible to establish the maximum adsorption point of hydrotalcite.

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Optimización De La Síntesis De Nanopigmentos De Origen Natural Para Biopolímeros Mediante El Uso De Diseño De Experimentos.

Cited by 4 publications

References 132 publications

Reactive dye adsorption desorption and stamping by halloysite

Reactive dye adsorption desorption and stamping by halloysite

Uses of Nanoclays and Adsorbents for Dye Recovery: A Textile Industry Review

The Optimal Concentration of Nanoclay Hydrotalcite for Recovery of Reactive and Direct Textile Colorants

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