|| ARTICLES | Am. J. innov. res. appl. sci. Volume 2, Issue 3, Pages 113-119 (March 2016)|
EFFECT OF TEMPERATURE ON THE PARTICULATE BEHAVIOUR OF MODIFIED KAOLIN AS POTENTIAL ADSORBENT USING ZETASIZER NANO-S
| Kariim Ishaq | Aliyu Ahmed |Abdulkareem Ambali Saka | Abubakre Oladiran Kamardeen | and | Mohammed Is’haq Alhassan |. American Journal of Innovative Research and Applied Sciences. 2016; 2(3):113-119.
| PDF FULL TEXT | | Received | 14 March 2016 | | Accepted | 20 March 2016 | | Published 31 March 2016 |
Background: The dependence of adsorption rate on the particulate behavior of adsorbents can be effectively studied using the concept of Brownian motion. Variation in settling time of particles at different temperatures could have effect on adsorption process. The dynamic light scattering (DLS) technique is based on the principle of Brownian motion, and thus is suitable for investigating the behavior of particles under different conditions. Objectives: In the present research, particulate behavior of modified kaolin was studied at varied temperature using DLS technique in Zetasizer Nano-S equipment. Methods: Local kaolin was characterized for its thermal stability, surface morphology, and crystallinity using Thermogravimetric analysis (TGA), high resolution scanning electron microscopy (HRSEM) and X-ray diffractometry (XRD) respectively. For adsorbent development purpose, the local kaolin was modified by acid activation process, and its properties were studied by DLS and XRD techniques. The DLS was also used to investigate the effect of temperature on the viscosity, refractive index, polydispersity index, and particle size of the adsorbent. Results: It was found that the intensities and sizes of particles increased with increase in temperature during the DLS experiment by the Zetasizer Nano-S equipment. Conclusion: The study revealed that for effective adsorption process at varied temperature, there should be a stirring medium to increase the relaxation time of the adsorbent in a batch reactor.
Keywords: Kaolin, Zetasizer Nano-S, DLS, Particulate behavior, Adsorbent, Characterization