Adsorption of Acid Dyes from Aqueous Solution on a Chitosan-cotton Composite Material Prepared by a New Pad-dry Process

In this paper, we developed a method that may be considered as an easy and economical way to prepare chitosan-cotton composite (CH-cotton) materials using an electrolytes-free pad-dry process in which the cure step was performed in an oven microwave to provide a cotton fabric with greatly enhanced affinity for acid dyes. Evidence of successful interaction between cotton and CH through formation of hydrogen bonding and/or ion dipole interactions was analysed by FTIR spectroscopy. Influence of cure time onto the weight per surface unit of samples has been studied and five CH-cotton composite materials with different %CH content (I-V) were prepared. Crosslinking of cellulosic chain molecules of cotton fiber through CH segments was confirmed by Wrinkle Recovery Angle (WRA) and Tensile properties measurements. CH-cotton samples were then tested as adsorbent of four acid dyes from no-electrolytes aqueous solution [Indigo Carmine (AB74), Acid Red 183 (AR183), Acid Blue 161 (AB161) and Acid Yellow 17 (AY17)]. Results were monitored using, reflectance spectro-colorimeter and spectrophotometer analyses. Data obtained with treated cotton showed better dye exhaustion than obtained with untreated one. The modelling of the adsorption isotherms was performed by Langmuir equation and the thermodynamic parameters were evaluated. Globally, the lack of affinity of cotton for acid dyes is widely overcome by the use of low %CH content ranging from 0.079 to 0.515

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Adsorption of several acid dyes from aqueous solution using activated carbon derived from teak sawdust: effect of surface acidity

Jurnal Teknik Kimia Indonesia ◽

10.5614/jtki.2007.6.1.1 ◽

2018 ◽

Vol 6 (1) ◽

pp. 530

Author(s):

Suryadi Ismadji

Keyword(s):

Aqueous Solution ◽

Activated Carbon ◽

Pore Size ◽

Surface Acidity ◽

Dye Adsorption ◽

Langmuir Equation ◽

Acid Dyes ◽

Modified Activated Carbon ◽

Adsorption Data ◽

Acid Blue

The adsorption of acid blue 9, acid blue 74 and acid orange 51 from aqueous solution using activated carbon derived from teak sawdust was studied in terms of dye molecular size, pore size and surface acidity of activated carbon. The experimental adsorption data were correlated with Langmuir equation. It was found that Langmuir equation could describe the adsorption data well with R2 higher than 0.95. The surface acidity of activated carbon plays a key role in dye adsorption on modified activated carbon. The interaction between the oxygen-free Lewis basic sites and the free electrons of the dye molecule were the main adsorption mechanism in the adsorption process on modified activated carbon. The adsorption capacities of activated carbon on the adsorption of acid dyes decreased in the order unmodified > modified at 100 oC > modified at 150 oC.Keywords: Activated Carbon, Adsorption, Pore Size, Surface Acidity AbstrakAdsorpsi zat warna acid blue 9, acid blue 74, dan orange 51 dari larutan dengan menggunakan karbon aktif yang terbuat dari serbuk gergaji kayu jati dipelajari sebagai fungsi ukuran molekul zat warna, ukuran pori, dan sifat asampermukaan karbon aktif. Data percobaan adsorpsi kemudian dikorelasikan dengan menggunakan persamaan Langmuir. Dari hasil percobaan yang diperoleh dapat dilihat bahwa persamaan Langmuir dapat menggambarkan data adsorpsi isotermal dengan baik dengan Ro lebih besar dari 0,95. Sifat asam permukaan memegang peranan yang sangat penting pada proses adsorpsi zat warna pada proses adsorpsi zat warna pada karbon aktif yang telah dimodifikasi. Interaksi antara bagian oxygen-free Lewis yang bersifat basa dan elektron-elektron bebas dari molekul zat warna merupakan mekanisme adsorpsi utama pada proses adsorpsi dengan menggunakan karbon aktif yang telah dimodifikasi. Kemampuan adsorpsi karbon aktif terhadap zat warna yang bersifat asam menurun dengan tingkatan karbon aktif tidak dimodifikasi > modifikasi 100 oC > modifikasi pada 100 oC > modifikasi pada 150 oC.Kata kunci: Adsorpsi, karbon aktif, sifat asam permukaan, ukuran pori

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Chitosan/Zeolite Composite Aerogels for a Fast and Effective Removal of Both Anionic and Cationic Dyes from Water

Polymers ◽

10.3390/polym13111691 ◽

2021 ◽

Vol 13 (11) ◽

pp. 1691

Author(s):

Angela Marotta ◽

Enrica Luzzi ◽

Martina Salzano de Luna ◽

Paolo Aprea ◽

Veronica Ambrogi ◽

...

Keyword(s):

Aqueous Solution ◽

Broad Spectrum ◽

Organic Dyes ◽

Indigo Carmine ◽

Zeolite 13X ◽

Industrial Sectors ◽

Effective Removal ◽

Composite Aerogels ◽

Zeolite Composite ◽

Adsorption Desorption

Organic dyes are extensively used in many industrial sectors, and their uncontrolled disposal into wastewaters raises serious concerns for environmental and human health. Due to the large variety of such pollutants, an effective remediation strategy should be characterized by a broad-spectrum efficacy. A promising strategy is represented by the combination of different adsorbent materials with complementary functionalities to develop composite materials that are expected to remove different contaminants. In the present work, a broad-spectrum adsorbent was developed by embedding zeolite 13X powder (ZX) in a chitosan (CS) aerogel (1:1 by weight). The CS–ZX composite adsorbent removes both anionic (indigo carmine, IC) and cationic (methylene blue, MB) dyes effectively, with a maximum uptake capacity of 221 mg/g and 108 mg/g, respectively. In addition, the adsorption kinetics are rather fast, with equilibrium conditions attained in less than 2 h. The composite exhibits good mechanical properties in both dry and wet state, which enables its handling for reusability purposes. In this regard, preliminary tests show that the full restoration of the IC removal ability over three adsorption–desorption cycles is achieved using a 0.1 M NaOH aqueous solution, while a 1 M NaCl aqueous solution allows one to preserve >60% of the MB removal ability.

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Removal of acid dyes from aqueous solution using potato peel waste biomass: a kinetic and equilibrium study

Desalination and Water Treatment ◽

10.1080/19443994.2013.810355 ◽

2013 ◽

Vol 52 (25-27) ◽

pp. 4999-5006 ◽

Cited By ~ 20

Author(s):

Edris Hoseinzadeh ◽

Mohammad-Reza Samarghandi ◽

Gordon McKay ◽

Naser Rahimi ◽

Javad Jafari

Keyword(s):

Aqueous Solution ◽

Waste Biomass ◽

Potato Peel ◽

Acid Dyes ◽

Equilibrium Study

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Efficient removal and recycle of acid blue 93 dye from aqueous solution by acrolein crosslinked chitosan hydrogel

Colloids and Surfaces A Physicochemical and Engineering Aspects ◽

10.1016/j.colsurfa.2021.127825 ◽

2021 ◽

pp. 127825

Author(s):

Yun Liu ◽

Yue-Fei Zhang ◽

Jian Tang ◽

Yuting Tan ◽

Hang Lei ◽

...

Keyword(s):

Aqueous Solution ◽

Efficient Removal ◽

Chitosan Hydrogel ◽

Crosslinked Chitosan ◽

Acid Blue

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Acid Blue 25 Removal by using Electro-Persulfate Process

10.31224/osf.io/n25su ◽

2020 ◽

Author(s):

Zeinab Ghorbani

Keyword(s):

Aqueous Solution ◽

Removal Efficiency ◽

Salt Concentration ◽

Dye Removal ◽

Industrial Effluents ◽

Sodium Persulfate ◽

Initial Concentration ◽

Acid Blue 25 ◽

Sulfate Process ◽

Acid Blue

This study aimed to investigate the efficiency of the electro-persulfate process in removing acid blue 25 from aqueous solution. In order to optimize the parameters, the OFAT method was used, and the effect of three main parameters, including pH, sodium persulfate salt concentration, and current intensity was investigated. According to the results, the optimal removal efficiency of 94% in 60 minutes was obtained under conditions of pH=5, the initial concentration of sodium persulfate=250 mg / L, and the current=500 mA. According to the results of this study, the electro-persulfate process sulfate process can be an efficient process for dye removal from industrial effluents.

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Hydrothermal synthesis of nano cavities of Al-MCF for adsorption of indigo carmine from aqueous solution

Journal of Industrial and Engineering Chemistry ◽

10.1016/j.jiec.2014.02.055 ◽

2015 ◽

Vol 21 ◽

pp. 423-427 ◽

Cited By ~ 8

Author(s):

Saeedeh Hashemian ◽

Bahareh Sadeghi ◽

Mahbobah Mangeli

Keyword(s):

Aqueous Solution ◽

Hydrothermal Synthesis ◽

Indigo Carmine

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Adsorption of Indigo Carmine from Aqueous Solution by Chitosan and Chitosan/Activated Carbon Composite: Kinetics, Isotherms and Thermodynamics Studies

Fibers and Polymers ◽

10.1007/s12221-019-1107-y ◽

2019 ◽

Vol 20 (9) ◽

pp. 1820-1832 ◽

Cited By ~ 6

Author(s):

Jacques K. Fatombi ◽

Esta A. Idohou ◽

Sèmiyou A. Osseni ◽

Ignace Agani ◽

David Neumeyer ◽

...

Keyword(s):

Aqueous Solution ◽

Activated Carbon ◽

Indigo Carmine ◽

Carbon Composite ◽

Isotherms And Thermodynamics

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Adsorption of acid dyes from aqueous solution by CTMAB modified bentonite: Kinetic and isotherm modeling

Journal of Molecular Liquids ◽

10.1016/j.molliq.2015.08.032 ◽

2015 ◽

Vol 211 ◽

pp. 1074-1081 ◽

Cited By ~ 54

Author(s):

Liang-guo Yan ◽

Li-lu Qin ◽

Hai-qin Yu ◽

Shuang Li ◽

Ran-ran Shan ◽

...

Keyword(s):

Aqueous Solution ◽

Acid Dyes ◽

Isotherm Modeling ◽

Modified Bentonite ◽

Kinetic And Isotherm Modeling

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Spectrophotometric investigation of the interactions between cationic (C.I. Basic Blue 9) and anionic (C.I. Acid Blue 25) dyes in adsorption onto extracted cellulose from Posidonia oceanic in single and binary system

Water Science & Technology ◽

10.2166/wst.2016.068 ◽

2016 ◽

Vol 73 (9) ◽

pp. 2211-2221 ◽

Cited By ~ 2

Author(s):

Najoua Ben Douissa ◽

Sonia Dridi-Dhaouadi ◽

Mohamed Farouk Mhenni

Keyword(s):

Aqueous Solution ◽

Molecular Complex ◽

Photoelectron Spectroscopy ◽

Electrostatic Interactions ◽

Equilibrium Concentration ◽

Species Interaction ◽

Spectrophotometric Analysis ◽

Textile Dye ◽

Acid Blue 25 ◽

Acid Blue

Extracted cellulose from Posidonia oceanica was used as an adsorbent for removal of a cationic (Basic blue 9, BB) and anionic textile dye (Acid blue 25, AB) from aqueous solution in single dye system. Characterization of the extracted cellulose and extracted cellulose-dye systems were performed using several techniques such as Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, zeta potential and Boehm acid–base titration method. Adsorption tests showed that the extracted cellulose presented higher adsorption of BB than AB in single dye system, revealing that electrostatic interactions are responsible, in the first instance, for the dye–adsorbent interaction. In single dye systems, the extracted cellulose presented the maximum adsorption capacities of BB and AB at 0.955 mmol.g−1 and 0.370 mmol.g−1, respectively. Adsorption experiments of AB dye on extracted cellulose saturated by BB dye exhibited the release of the latter dye from the sorbent which lead to dye–dye interaction in aqueous solution due to electrostatic attraction between both species. Interaction of BB and AB dyes were investigated using spectrophotometric analysis and results demonstrated the formation of a molecular complex detected at wavelengths 510 and 705 nm when anionic (AB) and cationic (BB) dye were taken in equimolar proportions. The adsorption isotherm of AB, taking into account the dye–dye interaction was investigated and showed that BB dye was released proportionately by AB equilibrium concentration. It was also observed that AB adsorption is widely enhanced when the formation of the molecular complex is disadvantaged.

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