A novel amphoteric β-cyclodextrin-based adsorbent for simultaneous removal of cationic/anionic dyes and bisphenol A

Zhou, Yanbo; Hu, Yonghua; Huang, Weiwei; Cheng, Guangfeng; Cui, Changzheng; Lu, Jun

doi:10.1016/j.cej.2018.01.155

Cited by 193 publications

(57 citation statements)

References 35 publications

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“…The efficiency of the prepared H6 and H8 for dyes adsorption was further investigated by a comparison of the highest adsorption capacities of RR and MB over modified CoFe 2 O 4 adsorbents in this work with the other different adsorbents on the literature as shown in Table 4 [34,39,42,[45][46][47][48][49][50][51][52][53][54][55][56][57][58][59]. It is clear that CoFe 2 O 4 modified possesses the highest maximum adsorption capacity for RR and MB.…”

Section: Langmuir Isothermmentioning

confidence: 99%

Improvement of dyes removal from aqueous solution by Nanosized cobalt ferrite treated with humic acid during coprecipitation

2019

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Highly effective novel adsorbent [CoFe 2 O 4-humic acid(HA)] was synthesized by co-precipitation technique at pH 6 (H6) and pH 8 (H8). XRD, S BET and Zeta-potential measurements were used to study the physicochemical properties of the prepared nanoparticles. XRD results showed that the chemical treatment of CoFe 2 O 4 by HA causes the appearance of carbon as new active sites for adsorption process. Batch adsorption tests were achieved to eliminate anionic remazole-red (RR-133) and cationic methylene blue (MB) dyes. The obtained data showed that H6 and H8 solids calcined at 300 and 500 °C have higher adsorption rate for removing of dye than unmodified cobalt iron mixed oxide. The removal reached 100% after a period of dye contact time 2 min and 30 min for RR and MB, respectively. The uptake of RR and MB was much affected by the pH of dye solution. The pseudo-second-order kinetic model was the most fitted well and the adsorption process followed the Langmuir isotherm model. The adsorption of dye on adsorbent was chemisorption process. The as-prepared adsorbents can be regenerated and reused four times for both dyes. The efficiency of the prepared nano-samples and durability as adsorbent were accomplished.

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Section: Langmuir Isothermmentioning

confidence: 99%

Improvement of dyes removal from aqueous solution by Nanosized cobalt ferrite treated with humic acid during coprecipitation

2019

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“…CDs play a significant role in the textile industry, as they can be used to remove surfactants from washed textile materials [31], as leveling agents in dyeing [32][33][34], in textile finishing [35][36][37][38][39], and in wastewater treatment [40][41][42][43].…”

Section: General Characteristics Of Cyclodextrinsmentioning

confidence: 99%

The Role of β-Cyclodextrin in the Textile Industry—Review

Bezerra

Arias²,

Firmino

et al. 2020

Molecules

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β-Cyclodextrin (β-CD) is an oligosaccharide composed of seven units of D-(+)-glucopyranose joined by α-1,4 bonds, which is obtained from starch. Its singular trunk conical shape organization, with a well-defined cavity, provides an adequate environment for several types of molecules to be included. Complexation changes the properties of the guest molecules and can increase their stability and bioavailability, protecting against degradation, and reducing their volatility. Thanks to its versatility, biocompatibility, and biodegradability, β-CD is widespread in many research and industrial applications. In this review, we summarize the role of β-CD and its derivatives in the textile industry. First, we present some general physicochemical characteristics, followed by its application in the areas of dyeing, finishing, and wastewater treatment. The review covers the role of β-CD as an auxiliary agent in dyeing, and as a matrix for dye adsorption until chemical modifications are applied as a finishing agent. Finally, new perspectives about its use in textiles, such as in smart materials for microbial control, are presented.

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“…Cyclodextrin-based composites have also drawn a wide attention as a new generation of adsorbents for dye removal from wastewater due to their extraordinary physicochemical properties and cavities [11][12][13]. ese advanced structural properties of cyclodextrin composites promoted the practical industrial application compared to native cyclodextrin itself [14].…”

Section: Polymer-based Adsorbents For Dye Removalmentioning

confidence: 99%

Current Advances of Polymer Composites for Water Treatment and Desalination

Berber

2020

Journal of Chemistry

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Over the past five years, a lot of research activities in polymer composites were done in order to improve environmental sustainability and to present advantages for commercial applications of water treatment and desalination. Polymers offered tunable properties, improved processability, remarkable stability, high surface area for fast decontamination, selectivity to eliminate different pollutants, and cost-cutting of water treatment. Hence, the development of polymeric materials is one of the future directions to meet the environmental water standards and to supply the water requirements of the growing populations. This review highlighted the very recent achievements in fabrication, characterization, and applications of polymeric composites used for water treatment and desalination. The polymeric modifications, the addition of functional groups, and the assemblies of nanomaterials were also discussed in detail. In particular, great attention was paid to the recent advances in polymer/polymer composites, polymer/carbon composites, and polymer/clay composites, presenting their usage in the removal of various types of contaminants, e.g., metal ions, dyes, and other toxic pollutants. The review also summarized the main advantages and disadvantages of the different adsorbent materials. Specific attention was paid to the mechanism of adsorption, including chemisorption and physisorption mechanisms. In addition, the challenges and the future perspectives were identified to reach the optimal performance of the different adsorbents.

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A novel amphoteric β-cyclodextrin-based adsorbent for simultaneous removal of cationic/anionic dyes and bisphenol A

Cited by 193 publications

References 35 publications

Improvement of dyes removal from aqueous solution by Nanosized cobalt ferrite treated with humic acid during coprecipitation

Improvement of dyes removal from aqueous solution by Nanosized cobalt ferrite treated with humic acid during coprecipitation

The Role of β-Cyclodextrin in the Textile Industry—Review

Current Advances of Polymer Composites for Water Treatment and Desalination

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