scholarly journals R emoval of Cationic Dye – Methylene Blue - from Aque ous Solution by Adsorption on Fly Ash - based Geopolymer

2018 ◽  
Vol 9 (1) ◽  
pp. 32-46 ◽  
Author(s):  
M. EL Alouani ◽  
S. Alehyen ◽  
M. EL Achouri ◽  
M. Taibi
Keyword(s):  
Methylene Blue ◽  
Fly Ash ◽  
Cationic Dye

scholarly journals Study of photocatalytic activity of TiO2 fluorinated by thermal shock method for the degradation of different dyes

2015 ◽  
Vol 18 (2) ◽  
pp. 121-131
Author(s):  
Khoa Tien Le ◽  
Ngoc Chau Hoang ◽  
Tien Thuy Thai ◽  
Anh Trung Le ◽  
Thinh Nguyen Huu Pham ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Thermal Shock ◽  
Photocatalytic Oxidation ◽  
Organic Dyes ◽  
Cationic Dye ◽  
Solution Ph ◽  
Ph Values ◽  
Methylene Blue Cationic Dye

TiO2 P25 was fluorinated by thermal shock method in order to study the influence of thermal shock fluorination on the surface properties and the photocatalytic activity for the degradation of cationic and anionic organic dyes at different pH values. The surface charge of catalysts was characterized by the pHPZC measurement. The photocatalytic activity of catalysts was evaluated via the degradation of methylene blue (cationic dye) and methyl orange (anionic dye). The results showed that the thermal shock fluorination and the rise of solution pH can increase the surface negative charge of TiO2, which enhanced the adsorption of methylene blue and then improved the photocatalytic degradation of this cationic dye under UV and visible light. On the other hand, after the fluorination, the adsorption of methyl orange on TiO2 was strongly reduced, which limited the photocatalytic oxidation of this anion dye.

scholarly journals Application of Emulsion Liquid Membrane Process for Cationic Dye Extraction

2020 ◽  
Vol 21 (3) ◽  
pp. 39-44
Author(s):  
Manal Adnan Mohammed ◽  
Wasan Omar Noori ◽  
Huda Adil Sabbar
Keyword(s):  
Methylene Blue ◽  
Liquid Membrane ◽  
Agitation Speed ◽  
Blue Dye ◽  
Cationic Dye ◽  
Methylene Blue Dye ◽  
Membrane Process ◽  
Emulsion Liquid Membrane ◽  
H2so4 Concentration ◽  
Dye Extraction

In the present work studies were carried out to extract a cationic dye (Methylene Blue MB) from an aqueous solution using emulsion liquid membrane process (ELM). The organic phase (membrane phase) consists of Span 80 as emulsifier, sulfuric acid solution as stripping agent and hexane as diluent.  In this study, important factors influencing the extraction of methylene blue dye were studied. These factors include H2SO4 concentration in the stripping phase, agitation speed in the dye permeation stage, Initial dye concentration and diluent type.    More than (98%) of Methylene blue dye was extracted at the following conditions: H2SO4 concentration (1.25) M, agitation speed (200) rpm, dye concentration (10) ppm and the diluent type was hexane.

scholarly journals Adsorption of Methylene Blue from Aqueous Solution on High Lime Fly Ash: Kinetic, Equilibrium, and Thermodynamic Studies

2012 ◽  
Vol 33 (1) ◽  
pp. 15-23 ◽  
Author(s):  
Serkan Keleşoğlu ◽  
Mürşide Kes ◽  
Leman Sütçü ◽  
Hürriyet Polat
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Fly Ash ◽  
Thermodynamic Studies ◽  
Kinetic Equilibrium

Synthesis of porous biomass fly ash-based geopolymer spheres for efficient removal of methylene blue from wastewaters

2019 ◽  
Vol 207 ◽  
pp. 350-362 ◽  
Author(s):  
Rui M. Novais ◽  
João Carvalheiras ◽  
David M. Tobaldi ◽  
Maria P. Seabra ◽  
Robert C. Pullar ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Fly Ash ◽  
Efficient Removal ◽  
Biomass Fly Ash

Methylene blue adsorption properties of mechanochemistry modified coal fly ash

2018 ◽  
Vol 24 (8) ◽  
pp. 2133-2141 ◽  
Author(s):  
Hui Li ◽  
Mingwei Dai ◽  
Shunli Dai ◽  
Xinju Dong ◽  
Feng Li
Keyword(s):  
Methylene Blue ◽  
Fly Ash ◽  
Coal Fly Ash ◽  
Adsorption Properties ◽  
Methylene Blue Adsorption

Mesoporous carbons as adsorbents to removal of methyl orange (anionic dye) and methylene blue (cationic dye) from aqueous solutions

2021 ◽  
Vol 220 ◽  
pp. 363-379
Author(s):  
Katarzyna Jedynak ◽  
Marta Repelewicz ◽  
Krystyna Kurdziel ◽  
Dariusz Wideł
Keyword(s):  
Methylene Blue ◽  
Methyl Orange ◽  
Aqueous Solutions ◽  
Cationic Dye ◽  
Mesoporous Carbons ◽  
Anionic Dye ◽  
Methylene Blue Cationic Dye
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