Adsorption of Acid Blue 25 dye by bentonite and surfactant modified bentonite

2018 ◽  
Author(s):  
Mark Jeeva ◽  
W. Y. Wan Zuhairi
Keyword(s):  
Modified Bentonite ◽  
Acid Blue 25 ◽  
Acid Blue

Amines modified fibers obtained from natural Populus tremula and their rapid biosorption of Acid Blue 25

2018 ◽  
Vol 250 ◽  
pp. 423-432 ◽  
Author(s):  
Najeh Tka ◽  
Mahjoub Jabli ◽  
Tawfik A. Saleh ◽  
Ghazwan Ali Salman
Keyword(s):  
Populus Tremula ◽  
Acid Blue 25 ◽  
Acid Blue

scholarly journals Acid Blue 25 Removal by using Electro-Persulfate Process

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.

scholarly journals Efficiency and Modeling of UV-Electropersulfate Process via Iron Electrode in the Degradation of Acid Blue 25 Dye Using Central Composite Design

2019 ◽  
Vol 6 (4) ◽  
pp. 339-355
Author(s):  
Mohammadreza Samarghandi ◽  
◽  
Alireza Rahmani ◽  
Ghorban Asgari ◽  
Jamal Mehralipour ◽  
...  
Keyword(s):  
Central Composite Design ◽  
Iron Electrode ◽  
Acid Blue 25 ◽  
Acid Blue ◽  
Central Composite

Analysis of synergistic and antagonistic adsorption of heavy metals and acid blue 25 on activated carbon from ternary systems

2015 ◽  
Vol 93 ◽  
pp. 755-772 ◽  
Author(s):  
Rigoberto Tovar-Gómez ◽  
Ma. del Rosario Moreno-Virgen ◽  
Jaime Moreno-Pérez ◽  
Adrián Bonilla-Petriciolet ◽  
Virginia Hernández-Montoya ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Activated Carbon ◽  
Ternary Systems ◽  
Acid Blue 25 ◽  
Acid Blue

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

2016 ◽  
Vol 73 (9) ◽  
pp. 2211-2221 ◽  
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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