Done By: Diamond Group
School Name: Mohamed Bin AbdelAziz Al-Mana Independent School
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.
Environmental Catalysis, Decomposition of Ammonia using Zeolite, IDM8
1. diamond
2-Omar Al-hajri1-Moayad Sufian
4-Mohammed Almansoori3-Faisal Al_henzab
AL-BAIRAQ
I AM DISCOVERING MATERIALS
ENVIRONMENTAL CATALYSIS MODULE
DECOMPOSITION OF AMMONIA USING ZEOLITE AS A
CATALYST
2. OUTLINE
•Introduction
•Activity 1: The decomposition of H2O2 using yeast as a catalyst
•Activity 2: Searching for Catalysts
•Activity 3: Homogeneous and Heterogeneous Acid Catalysis
•Activity 4: Using a Metal Catalyst to Degrade an Air Pollutant
•Activity 5: Using Photocatalysis to Degrade a Water Pollutant
•Design Project: Designing a Catalytic System
3. INTRODUCTION
•Catalysis enables a chemical reaction to occur at a much faster rate
•Over 80% of industrial processes involve catalysts,
•التحفيزهوتسمى مادة استخدام]حافز[التفاعل سرعة تزيد ان على قادرةالكميائي
دائم كيميائي تغير بها يحدث ان دون التفاعل سرعة تخفيض طريق عن.
•Motivation is the use of a substance called a catalyst able to
increase the speed of the chemical reaction by lowering /
activation energy of interaction that occurs without changing
its chemical permanent
4. ACTIVITY 1: THE DECOMPOSITION OF
H2O2 USING YEAST AS A CATALYST
•Research Questions:
•What effect does a catalyst have on the decomposition reaction of hydrogen peroxide
(H2O2)?
•What factors affect the rate of the reaction?
•What evidence would you observe that indicated a reaction is taking place
Yeast
5. ACTIVITY 1: THE DECOMPOSITION OF H2O2
USING YEAST AS A CATALYST
11. ACT. 4: USING A METAL CATALYST TO DEGRADE AN
AIR POLLUTANT
•Research Questions:
•What are the relative rates of catalytic oxidation of ammonia using copper
granules, copper turnings, and iron fibers?
االفضل المعدني المحفز معرفة نحاول التجربة هذه في
غاز لتخفيفاالمونية
هي النتائج كانت وcopper turnings
12. CONT.: ACTIVITY 4
Must be heated
catalyst
To give the most
accurate results
In the experiment
13. We will note at the end of the experiment that every
time the color will hide all the pre
ACT. 4: USING A METAL CATALYST
TO DEGRADE AN AIR POLLUTANT
15. ACT. 5: USING PHOTOCATALYSIS TO
DEGRADE A WATER POLLUTANT
DARKDARK
معمحفز
SUNSUN
معمحفز
UVUV
معمحفز
TIME
5555550
5543533
5541526
5541529
22. 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 and Shell.
Editor's Notes
Disadv: it is hard to get the reactant to the surface
By product may deactivate (poison the catalyst)
This experiment ties in closely with light-harnessing reactions, photosynthesis, and even ozone depletion. As photocatalysis involves using solar energy to produce a reaction, it is one of the best ways, environmentally-speaking, to use catalysis.