Removal of basic and acid dyes from aqueous solutions using cone powder from Moroccan cypress Cupressus sempervirens as a natural adsorbent

2019 ◽  
Vol 166 ◽  
pp. 387-398
Author(s):  
Zineb Bencheqroun ◽  
Imane El Mrabet ◽  
Mohammed Kachabi ◽  
Mostafa Nawdali ◽  
Héctor Valdés ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Acid Dyes ◽  
Cupressus Sempervirens ◽  
Natural Adsorbent

Biosorption of hexavalent chromium from aqueous solutions using raw coconut fiber as a natural adsorbent

2019 ◽  
Vol 206 (11) ◽  
pp. 1426-1439 ◽  
Author(s):  
Fernanda Paiva Franguelli ◽  
Katia Tannous ◽  
Carolina Cione Coppi
Keyword(s):  
Aqueous Solutions ◽  
Hexavalent Chromium ◽  
Coconut Fiber ◽  
Natural Adsorbent

Adsorption of acid dyes from aqueous solutions by the ethylenediamine-modified magnetic chitosan nanoparticles

2011 ◽  
Vol 185 (2-3) ◽  
pp. 1045-1052 ◽  
Author(s):  
Limin Zhou ◽  
Jieyun Jin ◽  
Zhirong Liu ◽  
Xizhen Liang ◽  
Chao Shang
Keyword(s):  
Aqueous Solutions ◽  
Chitosan Nanoparticles ◽  
Acid Dyes ◽  
Magnetic Chitosan

The interaction between a series of acid azo dyestuffs and nonionic surfactants in aqueous solution

1971 ◽  
Vol 24 (9) ◽  
pp. 1845 ◽  
Author(s):  
A Datyner ◽  
MJ Delaney ◽  
H Holliger
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Nonionic Surfactants ◽  
Acid Dyes ◽  
Mechanism Of Interaction

The diffusion of a series of seven acid dyes in aqueous solutions in the absence and presence of nonionic surfactants has been investigated. Some indications have been obtained regarding the mechanism of interaction between the two species in solution.

Biosorption of Acid Dyes Using Modified Chitosan: Effect of Dye Structure, Hydrogen Bonding and PH

2011 ◽  
Vol 236-238 ◽  
pp. 464-469 ◽  
Author(s):  
Zuo Hua Wang ◽  
Bo Xiang ◽  
Zheng Zhai ◽  
Yi Jiu Li
Keyword(s):  
Hydrogen Bonding ◽  
Aqueous Solutions ◽  
Sorption Kinetics ◽  
Acid Dyes ◽  
Order Model ◽  
Modified Chitosan ◽  
Ph Influence ◽  
Pseudo Second Order ◽  
Acid Orange 10 ◽  
Acid Green 25

This work investigated sorption properties of diethylenetriamine derivative of chitosan (CTSN) for removal of acid dyes (Acid Green 25 (AG25), Acid Red 18 (AR18) and Acid Orange 10 (AO10)) from aqueous solutions. Sorption kinetics was firstly evaluated. It was found that pseudo-second-order model fits well with these dyes adsorbed on CTSN. Compared with normal chitosan, CTSN has higher capacity for AR18 and AO10, but a lower value for AG25. Mechanisms and interactions of dyes with CTSN were also discussed by study the effect of pH, influence of hydrogen-bonding and comparing the sorption capacities.

scholarly journals Role of Activated Carbon Modified by H3PO4and K2CO3From Natural Adsorbent for Removal of Pb (II) From Aqueous Solutions

2012 ◽  
Vol 13 (3) ◽  
pp. 167-172 ◽  
Author(s):  
Mahboobeh Manoochehri ◽  
Ameneh Khorsand ◽  
Elham Hashemi
Keyword(s):  
Activated Carbon ◽  
Aqueous Solutions ◽  
Natural Adsorbent

scholarly journals Sorption of Reactive and Acid Dyes from Aqueous Solutions onto Sawdust

1970 ◽  
Vol 45 (1) ◽  
pp. 35-38
Author(s):  
S Rehman Khan ◽  
Asma Inayat ◽  
Amjad Rana
Keyword(s):  
Aqueous Solutions ◽  
Key Words ◽  
Adsorption Capacity ◽  
Dye Removal ◽  
Acid Dyes ◽  
Acid Orange ◽  
Saw Dust ◽  
Experimental Parameters ◽  
Initial Ph

The capability of sawdust for removal of Reactive Yellow (RY 1) and Acid Orange (AO2), from aqueous solutions was studied. The effect of various experimental parameters such as different treatments of sawdust, sorbent dose and pH of solution were studied. The saw dust a relatively abundant and inexpensive material was found to be effective absorbent for the removal of reactive and acid dyes from their aqueous solutions. It was found that the sawdust activated with acid have higher adsorption capacity. It has been found that at initial pH of 2 and at higher sorbent dose reactive and acid dyes were removed more effectively. Key words: Sawdust; Adsorption; Dye removal; Sorbent dose. DOI: 10.3329/bjsir.v45i1.5181 Bangladesh J. Sci. Ind. Res. 45(1), 35-38, 2010

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