Low viscosity, stable TiO2 nano-fluid for oxidative photo-degradation of methylene blue

Ujjwal K Bhagat1, Anuraj S. Kshirsagar1, Ashish Gautam1, Mehilal2, Pawan K Khanna1* 

1Nano-chemistry Laboratory, Department of Applied Chemistry, Defence Institute of Advanced Technology (DIAT-DU), DRDO, Govt. of India, Pune 411025, India

2High Energy Materials Research Laboratory (HEMRL), Pune, India

Adv. Mater. Lett., 2017, 8 (4), pp 506-517

DOI: 10.5185/amlett.2017.6960

Publication Date (Web): Mar 15, 2017

E-mail: pawankhanna2002@yahoo.co.in

Abstract


The present article highlights a simple and effective method for preparation of nano-fluid (NF) by employing long carbon chain fatty acid, PVP and ethylene glycol stabilized anatase phase TiO2. The so-prepared nano-fluid (0.5 wt. %) was employed for advanced oxidative photo-degradation of MB with different concentrations (1-5 mL) under short (254 nm) and long UV (365 nm) irradiation against various concentrations (5, 15, 25 ppm).  The maximum degradation efficiency observed was 88% and 71% under short and long UV irradiation respectively. The photocatalytic degradation of the MB was also studied by reaction kinetics.  Initially, titania nanoparticles (NPs) were synthesized and characterized using various advanced tools such as UV-Visible, FTIR, Raman spectroscopy, BET, XRD, SEM/EDAX, TEM etc. for its size, surface area and morphological understanding.

Keywords

Anatase TiO2 nanoparticles, TiO2 nano-fluid, photo-catalysis, reaction kinetics, UV irradiation.

Upcoming Congress

Knowledge Experience at Sea TM