Adsorptive Removal of Cetyltrimethyl Ammonium Bromide (CTAB) Surfactant from Aqueous Solution: Crossbreed Pilot Plant Membrane Studies

2019 ◽  
Vol 56 (6) ◽  
pp. 534-542
Author(s):  
Muhammad Ali ◽  
Sultan Alam ◽  
Najeeb ur Rehman ◽  
Muhammad Zahoor ◽  
Muhammad Sufaid Khan
2019 ◽  
Vol 32 (1) ◽  
pp. 53-58 ◽  
Author(s):  
Dayananda Sarangi ◽  
A.C. Samantaray ◽  
Rojalin Sahu ◽  
Braja B. Nanda

Densities and viscosities of ternary mixtures containing cetyltrimethyl ammonium bromide (CTAB) in aqueous solution of 1,3-dioxolane have been measured at 5 K intervals from 298.15 to 313.15 K and at atmospheric pressure. The experimental results of viscosity and density have been analyzed by using Jones-Dole equation and Masson equation. The values of constants A and B of Jones-Dole equation have been interpreted in terms of solute-solute and solute-solvent interactions. The standard partial molar volume,Vφ 0 at infinite dilution were determined from Masson equations. The structure making/breaking capacity of solute is interpreted with the help of Helper equation. The positive value of Helper′s constant (∂2Vφ 0/∂T2)p and the negative value of dB/dT shows that CTAB in studied organic solvent predominantly acts as a structure-maker.


2016 ◽  
Vol 30 (32n33) ◽  
pp. 1650400 ◽  
Author(s):  
Yuanyuan Han ◽  
Dan Wang ◽  
Danyang Liang ◽  
Shiqi Wang ◽  
Guoxin Lu ◽  
...  

Scheelite (CaWO4)-type microphosphors were synthesized by the precipitation method assisted with cetyltrimethyl ammonium bromide (CTAB). All compounds crystallized in the tetragonal structure with space group [Formula: see text] (No. 88). FE-SEM micrographs illustrate the spherical-like morphologies and rough surface. PL spectra indicate the broad emission peak maximum at 613 nm under UV excitation. Luminescence decay curves monitored by [Formula: see text] transition ([Formula: see text] nm) of Eu[Formula: see text] in doped CaWO4 are presented, the curves exhibit a single-exponential feature and the lifetime for doped CaWO4 is 0.61 ms.


RSC Advances ◽  
2015 ◽  
Vol 5 (22) ◽  
pp. 17202-17209 ◽  
Author(s):  
Astakala Anil Kumar ◽  
Ashok Kumar ◽  
J. K. Quamara ◽  
G. R. Dillip ◽  
Sang Woo Joo ◽  
...  

Correlation between the structural, optical and dielectric behavior of Fe doped perovskite strontium stannate nanoparticles synthesized by a facile wet chemistry route.


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