Chemical activation of boron nitride fibers for improved cationic dye removal performance

2015 ◽  
Vol 3 (15) ◽  
pp. 8185-8193 ◽  
Author(s):  
Jie Li ◽  
Yang Huang ◽  
Zhenya Liu ◽  
Jun Zhang ◽  
Xiaoxi Liu ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Water Purification ◽  
Dye Removal ◽  
Chemical Activation ◽  
Cationic Dye ◽  
P Adsorption ◽  
Sorbent Materials ◽  
Effective Sorbent

Adsorption represents an efficient and economical approach for water purification and substantial research is being performed to develop effective sorbent materials.

Highly efficient and sustainable alginate/carboxylated lignin hybrid beads as adsorbent for cationic dye removal

2021 ◽  
pp. 104839
Author(s):  
Jong-Chan Kim ◽  
Jungkyu Kim ◽  
Jinseok Park ◽  
Jung-Kwon Oh ◽  
In-Gyu Choi ◽  
...  
Keyword(s):  
Dye Removal ◽  
Cationic Dye ◽  
Highly Efficient

scholarly journals Effect of Structure and Chemical Activation on the Adsorption Properties of Green Clay Minerals for the Removal of Cationic Dye

2018 ◽  
Vol 8 (11) ◽  
pp. 2302 ◽  
Author(s):  
Abdelfattah Amari ◽  
Hatem Gannouni ◽  
Mohammad Khan ◽  
Mohammed Almesfer ◽  
Abubakr Elkhaleefa ◽  
...  
Keyword(s):  
Clay Minerals ◽  
Pore Volume ◽  
Acid Treatment ◽  
Structural Changes ◽  
Chemical Activation ◽  
Total Pore Volume ◽  
Batch Adsorption ◽  
Acid Activation ◽  
Cationic Dye ◽  
Average Pore

In this study, natural clay minerals with green appearance were treated with sulfuric acid. Mass percentage of acid (wt%), temperature (T), contact time (t) and liquid-to-solid mass ratio (R) are used as the prevailing factors that determine the extent of acid-activation. The values of these factors range from 15–50%, 60–90 °C, 1.5–6 h and 4–7, respectively. The study has focused on the structural changes as well as textural characteristics of the clay. Three activated clay samples were prepared under different treatment conditions. The samples were characterized using X-ray powder diffraction (XRD), fourier transform infrared (FTIR), scanning electron microscope (SEM), chemical analysis and N2 adsorption techniques. Characterization of the treated clay minerals exhibited significant structural changes to a greater extent of acid-activation, from being partially crystalline to being amorphous silica. The surface area and total pore volume of clay increased proportionally with the level of acid treatment. The average pore diameter behaved differently. During the strong acid treatment, a large increase in pore volume and the enlargement of the pore size distribution were observed. This suggests that considerable structural changes and partial destruction may have occurred in this condition. The removal of methylene blue, used as cationic dye, from aqueous solution by the batch adsorption technique on three prepared acid-activated clay samples was studied. The Langmuir model was found to agree well with the experimental data.

Poly(N-vinyl caprolactam-co-maleic acid) microparticles for cationic dye removal

2015 ◽  
Vol 73 (5) ◽  
pp. 1283-1301 ◽  
Author(s):  
Irina Popescu ◽  
Dana Mihaela Suflet
Keyword(s):  
Maleic Acid ◽  
Dye Removal ◽  
Cationic Dye

scholarly journals Quercus robur acorn peel as a novel coagulating adsorbent for cationic dye removal from aquatic ecosystems

2017 ◽  
Vol 101 ◽  
pp. 3-8 ◽  
Author(s):  
Saranya Kuppusamy ◽  
Kadiyala Venkateswarlu ◽  
Palanisami Thavamani ◽  
Yong Bok Lee ◽  
Ravi Naidu ◽  
...  
Keyword(s):  
Aquatic Ecosystems ◽  
Quercus Robur ◽  
Dye Removal ◽  
Cationic Dye
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