"Optimizing Silica Extraction from Teak Wood Ash (Tectona grandis): Influence of Reaction Time in the Sol-Gel Method"
By Dr. Nadiah Bte Ameram, Universiti Malaysia Kelantan


Total Likes : 19
You need to register to ask question/comment.
1 Comment from Assoc. Prof. Dr. Muhammad Azwadi Bin Sulaiman, 2025-07-28, 12:21:09 PM Very good presentation. Good voice too.
Answer from the presenter, 2025-07-29, 2:23:06 PM Alhamdulillah and Thank You Prof for your comments
2 Comment from NOOR JANATUN NAIM BINTI JEMALI, 2025-07-29, 9:04:05 AM Understandable poster. Visual layout could be improved for better balance. AI voice over somehow read all information written in the poster. maybe author can focus on important & highlighted parts.
Answer from the presenter, 2025-07-29, 2:23:43 PM Thank you very much for your thoughtful feedback. I truly appreciate your suggestions. I will definitely look into improving the visual balance of the poster and ensuring that the AI voice-over emphasizes only the key points to enhance clarity and engagement. Your input is very helpful for future improvements!
3 Comment from Mr. Abu hurairah, 2025-07-29, 10:49:45 AM Good poster
Answer from the presenter, 2025-07-29, 2:24:10 PM Thank you so much! I really appreciate your kind words and support. ?
4 Question from Mr. Imranhaziq, 2025-07-29, 12:13:07 PM Is that any specific method for extraction silica for teak wood?
Answer from the presenter, 2025-07-29, 2:26:52 PM Yes, silica can be extracted from teak wood ash using the sol-gel method, This method allows the controlled production of amorphous or mesoporous silica, depending on parameters like pH, temperature, and acid concentration. Teak wood ash is a good biomass source due to its relatively high silica content compared to other hardwoods.
5 Question from Mrs. Izzatinasir, 2025-07-29, 1:39:09 PM Given that teak is a costly and endangered species, what justifies its use in your research?
Answer from the presenter, 2025-07-29, 2:27:55 PM Thank you for the important question. While teak is indeed a valuable and often protected species, the focus of this research is not on harvesting living teak trees, but rather on utilizing teak wood waste or post-consumer ash. The teak used is not sourced through deforestation. Only existing waste material is used, ensuring no impact on forest conservation efforts