Photocatalysis of glycerol solution

Several papers have addressed the production of H2 from glycerol solution using catalyst. One of the most innovative ways is via photocatalysis. In this study, titania act as the base catalyst on which copper dopant varies the physicochemical properties. Ultimately, this work was aimed to synthesize...

Full description

Bibliographic Details
Main Author: Ang, Chun How
Format: Undergraduates Project Papers
Language:English
Published: 2013
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/9150/
http://umpir.ump.edu.my/id/eprint/9150/
http://umpir.ump.edu.my/id/eprint/9150/1/cd8557.pdf
id ump-9150
recordtype eprints
spelling ump-91502015-10-16T00:05:49Z http://umpir.ump.edu.my/id/eprint/9150/ Photocatalysis of glycerol solution Ang, Chun How QD Chemistry Several papers have addressed the production of H2 from glycerol solution using catalyst. One of the most innovative ways is via photocatalysis. In this study, titania act as the base catalyst on which copper dopant varies the physicochemical properties. Ultimately, this work was aimed to synthesized and investigated the physicochemical properties of titania supported copper, (Cu/TiO2) photocatalyst for photoreaction of glycerol solution. The photocatalyst, Cu/TiO2 was prepared via wet impregnation method with doped 2, 5, 10, 15, 20 and 25 wt% of Cu. X-ray fluorescence (XRF) showed that the composition of Cu followed the doped weight percentage on TiO2 and liquid-nitrogen physisorption showed that the BET specific surface area decreased with the increment of Cu loading. Thermogravimetric analysis (TGA) showed that Cu decomposed around 450 to 550 K while X-ray diffraction (XRD) proved the Cu/TiO2 was anatase with a new peak 2θ = 13° found as the appearance peak of CuO species. The measured densities were differed from the theoretical calculated densities. The photoreactivity of Cu/TiO2 was tested with methylene blue decomposition and the results have indicated that Cu/TiO2 possessed photoreactivity. The conversions for all the photocatalysts with Cu loading were higher than the pristine TiO2. This has confirmed that Cu loading has effectively increased the photoreaction of glycerol solution. The 2 wt% Cu/TiO2 photocatalyst showed the highest conversion at 97.78%. However, the conversion shows decreasing trend with the increment of Cu loading except for 25 wt% Cu/TiO2. The concentration profiles were fitted to the first order reaction rate law, the rate constant for each Cu/TiO2 was calculated and 2 wt% Cu/TiO2 has the highest rate constant (0.0574 min-1). The photocatalyst loading and concentration loading were conducted. In photocatalyst loading study, 0.83 g/L of 2 wt% Cu/TiO2 can be concluded as the optimum weight loading for 300 mL of glycerol solution. In the glycerol solution study, the amount of photocatalyst (0.25g) considered not optimum to yield the maximum conversion. 2013 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/9150/1/cd8557.pdf Ang, Chun How (2013) Photocatalysis of glycerol solution. Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:84945&theme=UMP2
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic QD Chemistry
spellingShingle QD Chemistry
Ang, Chun How
Photocatalysis of glycerol solution
description Several papers have addressed the production of H2 from glycerol solution using catalyst. One of the most innovative ways is via photocatalysis. In this study, titania act as the base catalyst on which copper dopant varies the physicochemical properties. Ultimately, this work was aimed to synthesized and investigated the physicochemical properties of titania supported copper, (Cu/TiO2) photocatalyst for photoreaction of glycerol solution. The photocatalyst, Cu/TiO2 was prepared via wet impregnation method with doped 2, 5, 10, 15, 20 and 25 wt% of Cu. X-ray fluorescence (XRF) showed that the composition of Cu followed the doped weight percentage on TiO2 and liquid-nitrogen physisorption showed that the BET specific surface area decreased with the increment of Cu loading. Thermogravimetric analysis (TGA) showed that Cu decomposed around 450 to 550 K while X-ray diffraction (XRD) proved the Cu/TiO2 was anatase with a new peak 2θ = 13° found as the appearance peak of CuO species. The measured densities were differed from the theoretical calculated densities. The photoreactivity of Cu/TiO2 was tested with methylene blue decomposition and the results have indicated that Cu/TiO2 possessed photoreactivity. The conversions for all the photocatalysts with Cu loading were higher than the pristine TiO2. This has confirmed that Cu loading has effectively increased the photoreaction of glycerol solution. The 2 wt% Cu/TiO2 photocatalyst showed the highest conversion at 97.78%. However, the conversion shows decreasing trend with the increment of Cu loading except for 25 wt% Cu/TiO2. The concentration profiles were fitted to the first order reaction rate law, the rate constant for each Cu/TiO2 was calculated and 2 wt% Cu/TiO2 has the highest rate constant (0.0574 min-1). The photocatalyst loading and concentration loading were conducted. In photocatalyst loading study, 0.83 g/L of 2 wt% Cu/TiO2 can be concluded as the optimum weight loading for 300 mL of glycerol solution. In the glycerol solution study, the amount of photocatalyst (0.25g) considered not optimum to yield the maximum conversion.
format Undergraduates Project Papers
author Ang, Chun How
author_facet Ang, Chun How
author_sort Ang, Chun How
title Photocatalysis of glycerol solution
title_short Photocatalysis of glycerol solution
title_full Photocatalysis of glycerol solution
title_fullStr Photocatalysis of glycerol solution
title_full_unstemmed Photocatalysis of glycerol solution
title_sort photocatalysis of glycerol solution
publishDate 2013
url http://umpir.ump.edu.my/id/eprint/9150/
http://umpir.ump.edu.my/id/eprint/9150/
http://umpir.ump.edu.my/id/eprint/9150/1/cd8557.pdf
first_indexed 2023-09-18T22:07:25Z
last_indexed 2023-09-18T22:07:25Z
_version_ 1777414800895115264