Open AccessTailoring amount of TiO2 doped onto fibrous silica ZSM-5 for enhanced photodegradation of paracetamol
Author(s) -
Farhana Aziz,
Aishah Abd. Jalil,
C.N.C. Hitam,
N.S. Hassan,
A.F.A. Rahman,
A.A. Fauzi
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/808/1/012017
Subject(s) - photodegradation , photocatalysis , materials science , doping , fourier transform infrared spectroscopy , catalysis , band gap , degradation (telecommunications) , chemical engineering , nuclear chemistry , adsorption , chemistry , organic chemistry , optoelectronics , telecommunications , computer science , engineering
Photocatalytic degradation of paracetamol has received much attention due to its low energy consumption, high efficiency and safety to environment. A simple electrolysis system was used to synthesis a series of titania (1-5 wt%) supported on fibrous silica ZSM-5 (TiO 2 /FZ). The FESEM images showed the cockscomb-like surface of FZ was preserved even after the addition of TiO 2 . FTIR results confirmed that TiO 2 is successfully incorporated with FZ through the Si-O-Ti bonds. The adsorption edge of TiO 2 shifted to the higher wavelength after supported on FZ and lowering the band gap of TiO 2 . The photodegradation of paracetamol was resulted in the following order: 3 wt% TiO 2 /FZ (90%) > 5 wt% TiO2/FZ (71%) > 1 wt% TiO 2 /FZ (65%). 3 wt% TiO 2 /FZ exhibits excellent photodegradation of paracetamol owing to the highest number of Si-O-Ti bonds and lowest band gap. The result obtained give new insight for other wastewater treatment processes over photodegradation of various pollutants.