Removal of 2,4-DCP from wastewater by CTAB/bentonite using one-step and two-step methods: A comparative study

Preparation and Characterization of Montmorillonite-Cetyl Trimethylammonium Bromide

“…The strong bands at 2924.09 and 2854.65 cm -1 attributed to asymmetric and symmetric stretching vibrations respectively of C-H groups in cetyl trimethyl ammonium bromide. The absorption peak appearing at about 1473.62 cm -1 belongs to bending vibration of NH4 + in the molecules of the organic intercelating agent and their bonding supporting the intercalation of surfactant molecules between the silica layers [19,20]. There is no evident change in the absorption peak of structural water at 3626 cm -1 after montmorillonite is treated by organic intercelating agent but the absorption peaks of interlayer adsorbed water at 3448 and 1635 cm -1 are weakened remarkably.…”

Removal of p-Nitrophenol from Aqueous Solution Using Brazilian Peat: Kinetic and Thermodynamic Studies

“…The adsorption of an adsorbate from one phase to the surface of another in a specific system leads to a thermodynamically defined distribution of the adsorbate between the phases as the system reaches equilibrium (Khenifi et al 2009). Thus, the correlation of data by theoretical or empirical equations is essential for the practical design of adsorption systems (Chang et al 2009).…”

Recyclable and visible light sensitive Ag–AgBr/TiO2: Surface adsorption and photodegradation of MO

“…CTAB played an important role in controlling the size of the deposited nanoparticles as both Br source and surfactant [22]. In the meanwhile, CTAB is known as an effective absorbance for organic dyes [23][24][25][26][27][28]. The residual CTAB from the preparation step would definitely influence the evaluation of photodegradation activity and lead to obscure acquaintance.…”