Volcanic ashes and its NaOH modified adsorbent for superb cationic dye uptake from water: statistical evaluation, optimization, and mechanistic studies

Author(s):  
Nuhu Dalhat Mu’azu ◽  
Mohammad Saood Manzar ◽  
Mukarram Zubair ◽  
Eman Gharib Alhajri ◽  
Mohammed H. Essa ◽  
...  
RSC Advances ◽  
2015 ◽  
Vol 5 (24) ◽  
pp. 18204-18212 ◽  
Author(s):  
Chi Hoong Chan ◽  
Chin Hua Chia ◽  
Sarani Zakaria ◽  
Mohd Shaiful Sajab ◽  
Siew Xian Chin

The effect of acid treatment towards the degree of defibrillation. Rapid uptake of cationic dye. Hemicellulose responsible for dye uptake.


2011 ◽  
Vol 163 (5) ◽  
pp. 912-926 ◽  
Author(s):  
C Marques-da-Silva ◽  
MM Chaves ◽  
NG Castro ◽  
R Coutinho-Silva ◽  
MZP Guimaraes

2013 ◽  
Vol 796 ◽  
pp. 390-394
Author(s):  
Jun Jun Zhang ◽  
Xiang Rong Wang

Dodecane-1,12-bis (oxy-2-hydroxy-propyl trimethyl ammonium chloride) (DBA2-12), which belongs to the cationic bolaform surfactants, was synthesized by two-step reactions in this study. The structure of the product was characterized by IR. The IR spectra showed the characteristic bands corresponding to the stretching vibration of C-N, C-O, and-OH groups. The influence of DBA2-12 on the kinetics and thermodynamics of the dyeing of acrylic fibers with cationic yellow X-5GL were investigated. The results showed that the bolaform surfactant had significant retarding effect for cationic dye, the dyeing rate constant and equilibrium dye-uptake was decreased, half-dyeing time was increased by the addition of surfactant DBA2-12. Meanwhile,surfactant DBA2-12 declined the partition coefficient,affinity and dye saturation value. It is concluded that bolaform surfactant DBA2-12 can be used to control dyeing rate of cationic dyes on acrylic fibers.


JAMA ◽  
1966 ◽  
Vol 195 (13) ◽  
pp. 1123-1128 ◽  
Author(s):  
S. Schor

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