Done By: Khor_Dalton8 Group School Name: Al Khor Independent 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: Designing Carbon Dioxide Filter Factory’s smoke contains many harmful and dangerous materials for both human beings and the environment, this project will not only save our ozone layer but it will save many people in the future generation securing a breath full future for humanity.

1. AL-Bairaq
I am Discovering Materials
Cycle 8
Environmental Catalysis Module
“Designing Carbon Dioxide Filter”
Al Khor Independent School for Girls
Dalton Group

2. Outline
• Introduction :
• Activity.1: The decomposition of
H2O2 using yeast as a catalyst.
• Activity.2: Homogeneous and
Heterogeneous Acid Catalysis
• Activity.3: Using a Metal
Catalyst to Degrade an Air
Pollutant
• Activity.4: Using
Photocatalysis to Degrade a
Water Pollutant.
• Activity.5: Designing project:
Carbon Dioxide Filter.

3. definition :
What is a Catalyst?
Catalysis is the increase in the rate of a chemical reaction
due to the participation of an additional substance called
a catalyst and they are substances that speed up
reactions by providing an alternative pathway for the
breaking and making of bonds.
Over 80% of industrial
processes involve catalysts.

4. Examples of catalysis :
•Natural Catalyst :
- the enzyme ptyalin :
• Industrial Catalyst :

5. Act.1: The decomposition of H2O2 using yeast as
a catalyst
• the catalyst does have effect on the
decomposition reaction of hydrogen peroxide
(H2O2); its that the (yeast) speeds up the
reaction.
Yeast

6. Steps :
20 ml of H2O
+
+
2 spoons of yeast food dye
+ =
soap

7. Observation :
bubble is produced :
Conclusion :
Hydrogen peroxide (H2O2) decomposes into water
and oxygen gas, but normally the reaction is so
slow.

8. Act.2: Using a Heterogeneous Acid Catalyst.
• in this activity we used a
heterogeneous ( solid ) acid catalyst
to catalyze the hydrolysis (
breakdown by reacting with water )
of an ester called methyl acetate, as
shown by the equation below.

9. Steps :
1. in the beginning add 2g of catalyst beads to the beaker 2 + 3.
2. then we pour about 100ml of hot tap water into each of three large
plastic-foam cups.
3. add 10ml of hot methyl acetate solution to the beakers 1 + 2 and 10ml of
hot water into the beaker 3 ; then placed them into the plastic-foam
cups.
4. At last we recorded the pH.
1- 2- 3-

10. Conclusion :
The second beaker that contains
methyl acetate sol. And catalyst
gives acetic acid that shows acidic
characters (pH) acidic.

11. Act.3: Using a Metal Catalyst to Degrade an
Air Pollutant
• in this activity we investigate the
catalytic conversion of ammonia using
copper granules, copper turnings, and
iron fibers; and we compare the
performance.

12. Steps :
step.1: step.2:
step.3: step.4:

13. Conclusion :
1. copper
granules :
2. copper
turnings :
3. iron fibers :

14. Act.4: Using Photocatalysis to
Degrade a Water Pollutant
• In this part of the activity, we used
photocatalysis to degrade the dye methylene
blue dissolved in water. and we monitor the
degradation rate of the dye by observing
changes in the color of the mixture over
time.

15. Sun
light
Lamp
UV light
No
UV light
+15
min
dye
methylene
blue
dye
methylene
blue + TiO2
Observation :

16. Act.6 Project: Designing Carbon Dioxide Filter
Introduction :
• Carbon dioxide is a colorless,
odorless, incombustible gas, CO2,
present in the atmosphere and
formed during respiration.
• a greenhouse gas that is emitted by
cars and other fossil-fuel-burning
entities, and that is the primary
contributor to rising global
temperatures. Aside from the
environmental dangers posed by
increases in CO2 in the atmosphere,
CO2 gas can also be responsible for
some health dangers.

17. Act.6 Project: Designing Carbon Dioxide Filter
• this activity was different, we discussed
about the idea of this project by our own.
It was “designing carbon dioxide filter”.
We used tow different types of catalyst:
copper turning and iron fiber.
And the final rustle was really interesting.

18. Act.6 Project: Designing Carbon Dioxide Filter
• Importance for Qatar society:
Qatar, with 55.4 tonnes of carbon dioxide per person, has the
highest footprint globally, about 10 times the global average.
with filtering the carbon dioxide using copper will decrease the
co2 that emitted from industries, by between 80% to 60%.

19. Act.6 Project: Designing Carbon Dioxide Filter
Aim of work :
1. to decrease amount of co2.
2. avoid air pollution by making
filter to clean the air.

20. Steps :

21. Observation :
Time(S) Without filter
(ppm)
Copper filter
(ppm)
Iron filter
(ppm)
5 1115 565 590
10 2700 780 810
15 5011 890 920
20 7660 950 1061
25 8945 1021 1110
30 9990 1161 1486
35 9005 1054 1319
40 8465 985 1097
45 7898 803 943
50 6658 725 798
55 5753 605 663
60 4543 498 516

22. Conclusion :
Amount of carbon dioxide was very high without
filter.
but with using copper turning filter: the amount of
produced of carbon dioxide decreased!
and with using iron filter: the amount decreased
but poising occurred.

23. Recommendation :
Copper filter applied to factories,
We could use platinum too as a
catalyst.

24. Acknowledgment
Many thanks to my teachers, school and AL-Bairaq team from
Center for Advanced Materials (CAM), Qatar University for
supporting us during our journey with a AL-Bairaq.
Also, I would like to thank the sponsors UNESCO, Ras Gas, Maersk
Oil and Shell.