character: Ms. Johnson
topic: Innovations in Photocatalysis for Water Purification
grade: 12
subject: Chemistry
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character: Dr. Smith
topic: The Role of Catalysts in Environmental Chemistry
grade: 12
subject: Chemistry
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character: Mr. Lee
topic: Advanced Materials in Water Treatment Technologies
grade: 12
subject: Chemistry
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character: Ms. Patel
topic: Nanotechnology Applications in Clean Water Solutions
grade: 12
subject: Chemistry
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