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Photodegradation of methylene blue using copper oxide prepared by hydrothermal method

Photodegradation of methylene blue using copper oxide prepared by hydrothermal method / Engku Mohamad Hafzanurudin Engku Yunus
Methylene Blue (MB) telah digunakan dalam banyak industri secara meluas. Pelaksanaan MB tanpa rawatan boleh mengakibatkan banyak kesan negatif kepada kehidupan akuatik. Manusia juga tidak terkecuali untuk terdedah dengan kesan negatif MB yang tidak dirawat kerana manusia memerlukan air untuk hidup. Cara termudah untuk rawatan MB adalah fotodegradasi yang menggunakan cahaya matahari yang merupakan sumber semulajadi untuk mengoksidakan MB. Kajian terus dengan mensintesis pemangkin tembaga oksida (CuO) untuk photodegradation MB menggunakan proses hidroterma yang merupakan cara yang mencukupi untuk mendapatkan kristal yang diingini dengan keadaan ringan, morfologi yang dikawal, pengagregatan yang rendah dan kristalografi yang tinggi. Proses hidrotermal diubah dengan suhu, kepekatan prekursor dan penambahan NaOH. Selepas itu, sampel akan menjalani pencirian yang mengimbas mikroskop elektron (SEM), X-Ray Diffraction (XRD), spectroscopy yang dapat dilihat Ultraviolet (UV-VIS) dan Brunauer Emmett Teller (BET). Hasil daripada eksperimen menerangi saiz struktur yang lebih besar apabila peningkatan kepekatan. Crystallinity juga dipertingkatkan apabila peningkatan suhu dan penambahan NaOH menjadi prekursor telah menghasilkan kesan besar kepada CuO morfologi, fasa dan prestasi penyingkiran. Parameter optimum proses hidroterma untuk mempunyai peratusan penyingkiran pewarna yang luar biasa ialah 0.05 M acetate tembaga dan urea, 134 oC dan penambahan 1 M NaOH. _______________________________________________________________________________________________________ Methylene Blue (MB) has been used in many industries widely. The discharging of MB without treatment may lead to many negative effects to aquatic life. Humans are also no exception to be exposed to the negative effects of untreated MB because they need water to live. The easiest way for MB treatment is photodegradation that used sunlight that is natural source to oxidize the MB. Study continued with synthesizing Copper Oxide (CuO) catalyst for MB photodegradation using hydrothermal process that is adequate ways to obtain desirable crystals with mild condition, controllable morphology, low aggregation and high crystallinity. Hydrothermal process was varied with temperature, concentration of precursor and addition of NaOH. After that, the sample will undergo characterization which scanning electron microscope (SEM), X-Ray Diffraction (XRD), Ultraviolet–visible spectroscopy (UV-VIS) and Brunauer Emmett Teller (BET). Result from experiment illuminate size of structure bigger when concentration increase. Crystallinity also enhanced when temperature increase and addition of NaOH to precursor had produce big impact to CuO morphologies, phase and removal performance. The optimum parameter of hydrothermal process to have magnificent dye removal percentage is 0.05 M of copper acetate and urea, 134 oC and addition of 1 M of NaOH.
Contributor(s):
Engku Mohamad Hafzanurudin Engku Yunus - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875007517
Language:
English
Subject Keywords:
Methylene Blue (MB); industries; aquatic life
First presented to the public:
6/1/2018
Original Publication Date:
7/18/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Chemical Engineering
Citation:
Extents:
Number of Pages - 56
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-07-31 11:44:06.421
Date Last Updated
2019-01-07 11:24:32.9118
Submitter:
Mohd Jasnizam Mohd Salleh

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Photodegradation of methylene blue using copper oxide prepared by hydrothermal method1 2018-07-31 11:44:06.421