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Volume 5, Issue 3 (Suppl)
Mod Chem Appl, an open access journal
ISSN: 2329-6798
Global Chemistry 2017
September 04-06, 2017
September 04-06, 2017 | London, UK
5
th
Global Chemistry Congress
Detachable photocatalysts of anatase TiO2 nanoparticles: Annulling surface charge for immediate
photocatalyst separation
Entesar Al-Hetlani, Mohamed O Amin
and
Metwally Madkour
Kuwait University, Kuwait
T
iO
2
photocatalysis is commonly utilized in diverse applications such as environmental waste management, biomedical
and energy fields. The present study demonstrates the effect of temperature on the characteristics of TiO2 nanoparticles
using XRD, XPS, DLS, UV-Vis, N2 sorpometry and TEM techniques. The optimum surface area of the photocatalyst was
obtained when it was prepared at 60ºC. Additionally, the TEM images showed semi-spherical morphology. Afterwards, rapid
photo-degradation of rhodamine 6G dye (R6G) with efficiency of 92.5% at pH=9.17 was accomplished using the optimized
nanoparticles. The main focus of this study is to establish a new avenue that can be used to separate the photocatalyst from
the reaction medium after the photo-degradation experiment is completed. In this study, the photocatalyst was completely
detached from the reaction medium in 3 minutes without utilization of coagulant agents or magnetic nanoparticles. This was
lucratively accomplished by adjusting the pH of the medium to match the isoelectric point (pHPZC) of the photocatalyst and
annulling its surface charge, hence rapid sedimentation was observed, Figure 1. This new method has proven to be simple,
rapid, and applicable to all types of photocatalysts on the industrial scale.
Biography
Entesar Al-Hetlani is Lecturer at Kuwait University and currently pursuing her PhD in Chemistry at University of Hull, UK. Her research interest includes “Forensic
analytical chemistry, organic and inorganic monolith columns, chemiluminescence and electro chemiluminescence, and synthesis of magnetic nanoparticles.
entesar_saad@hotmail.comEntesar Al-Hetlani et al., Mod Chem Appl 2017, 5:3(Suppl)
DOI: 10.4172/2329-6798-C1-006