Done By: Scientific Group School Name: Qatar Secondary School for Girls Environmental Catalysis Module: Students examines different types of catalytic systems, including heterogeneous and homogeneous catalysis. Depending on the knowledge they gained during activities, the students are then asked to design their projects. Our Project: Transforming SO2 to H2SO4 using carbon powder as catalyst.

1. AL-Bairaq
Scientific group
Qatar independent secondary
school for girls
Done by: Asma AL-Rayashi , Jawaher AL-Hasawi , Amal Al-naimi.

2. 2- Activity 1: The decomposition of H2O2
using yeast as a catalyst
3- Activity 2: Searching for Catalysts
1- Introduction
4- Activity 3: Homogeneous and
Heterogeneous Acid Catalysis
5- Activity 4: Using a Metal Catalyst to
Degrade an Air Pollutant
7- Design Project: Designing a Catalytic
System
Index
6- Activity 5: Using Photocatalysis to
Degrade a Water Pollutant

3. introduction catalysis is:
Is the increase in the rate of a chemical reaction of two or
more reactants due to the participation of an additional
substance .
When using a catalyst it is possible to replace a polluting
chemical reaction with a more environmentally friendly
alternative.

4. 1st Activity: The decomposition of H2O2 using yeast as
a catalyst
1- yeast 2- water 5- hydrogen
peroxide
3- soap 4- color dye
Our material:

5. 1- we mix the yeast with water.
2- put the color on soap.
3- after that we should mix the
mixture of yeast with soap
4- add the hydrogen peroxide
To produce oxygen by using
hydrogen peroxide with soap
and yeast reaction.
Steps:

6. Activity 2: Searching for Catalysts
Type of catalysis
and

7. Uses of catalysis
H2O2
It’s name
hydrogen
peroxide.
A disinfectant for
wounds
We can use it as a
catalysis
chlorine
TVs
Photography
bromine
variety of
disease-causing
germs
automobiles

8. Activity 3: Homogeneous and
Heterogeneous Acid Catalysis
Label 3 beakers
1- Add catalyst beads to beakers labeled with
catalyst
2- Add hot tap water into 3 foam cups.
3- Add hot methyl acetate solution to the beakers
labeled methyl acetate.
4- Add hot distill water into the beaker labeled
distilled water.

9. Time Methyel
acetate
solution
(MY)+
catalyst
Water +
catalyst
0 5 5 5
3 5 2 5
6 5 2 5
9 5 2 5
12 5 2 5
15 5 2 5
18 5 2 5

10. Act.4:Using a Metal Catalyst to Degrade an Air
Pollutant
Procedure: (Hydrogen nitride=Ammonia)
1.Obtain the metal catalyst: copper granules, copper
turnings, and iron fibers.
2. Set up apparatus as show.
3. Place catalyst into the reaction tube to make a 2.5 cm
length in the center of the glass tube. Use glass wool as
stoppers if copper granules are used.

12. 4th Activity
NH3 + Iron fibers NH3 + Cu turning NH3 + Cu granules
Beaker
no.
In the
min.
No. of color Beaker no. In the min. No. of color Beaker no. In the min No. of color
1 3.30 1 1 2 3 1 0 5
2 7 1 2 4 2 2 4 2
3 10.30 2 3 6 2 3 8 2
4 14 3 4 10 2 4 12 2
5 17.30 3 5 14 2 5 16 2
6 21 4 6 18 2 6 20 2
7 24.30 4 7 24 1 7 24 2
8 28 4 8 26 1 8 - -
9 31.30 4 9 30 1 9 - -

13. Act. 5: Using Photo catalysis to Degrade a Water
PollutantTiO2
• Photo catalysis is included in the nature category
because it uses light energy and converts it chemical
energy (photosynthesis).
• Students investigate the breakdown of methylene blue
in the presence of a catalyst and light. The solution
goes from deep blue to light blue or clear at short or
long times, depending on the light source.

14. Mythyli
ne blue
dark Ultra violet
lamp
Sun light
Time With
TiO2
With
out
TiO2
With
TiO2
Witho
ut
TiO2
With
TiO2
Witho
ut
TiO2
time = 0 5 5 5 5 5 5
5 min. - - 4 4 - -
10 min. - - 3 3 - -
15 min. - - 2 3 - -
20 min. 5 5 2 2 - -
25 min. - - 1 2 - -
30 min. 4 5 1 1 1 2

15. ‫انجازة‬ ‫المراد‬ ‫المشروع‬
Our project is to…

16. 1-Poison gas.
2-Colorless.
3-Has a pungent odor
4-Consists of the decomposition
of organic materials
.1‫سام‬ ‫غاز‬
.2‫اللون‬ ‫عديم‬
.3‫نفاذة‬ ‫رائحة‬ ‫له‬
.4‫العض‬ ‫المواد‬ ‫تحلل‬ ‫من‬ ‫يتكون‬‫ويه‬
SO2

17. 1-Strong acid
2-Enters in the industry
For example:
1-Plastic
2-twine clothes
3-detergents
4-auto battery
1-‫قوي‬ ‫حمض‬
2-‫مثل‬ ‫الصناعه‬ ‫في‬ ‫يدخل‬:
1-‫البالستيك‬
2-‫المالبس‬ ‫خيط‬
3-‫المنظفات‬
4-‫السيارات‬ ‫بطارية‬

19. H2O2
And
carbon
Sulpher
SO2
=H2SO4

20. Acknowledgment
Many thanks to my teachers, school and AL-Bairaq
team Eng. Doaa, CAM, Qatar University for supporting
us during our journey with a AL-Bairaq.
Also, I would like to thank the sponsors UNESCO, Ras
Gas, Shell and Qatar Petroleum.