Syangap, Diningrat Sitompul (2023) SINTESIS, KARAKTERISASI DAN APLIKASI NANOMATERIAL S/CuO/nGO YANG DIIRADIASI SINAR VISIBLE SEBAGAI ANTIBAKTERI TERHADAP BAKTERI ESCHERICHIA COLI DAN BACILLUS SP. FAKULTAS MATEMATIKA DAN ILMU PENGETAHUAN ALAM, UNIVERSITAS LAMPUNG.
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Abstrak (Berisi Bastraknya saja, Judul dan Nama Tidak Boleh di Masukan)
Pada penelitian ini, telah dilakukan sintesis dan karakterisasi nanosheets GO menggunakan metode Hummers termodifikasi dan ultrasonikasi, CuO menggunakan metode sol gel, dopan sulfur kedalam CuO menghasilkan masing-masing katalis S/CuO 0,25/1 dan S/CuO 0,75/1, dan impregnasi katalis S/CuO ke nanosheets GO menggunakan metode impregnasi basah dengan bantuan alat ultrasonic cleaner, diperoleh nanomaterial S/CuO/nGO dengan perbandingan masing-masing 0,25/1 dan 0,75/1 yang kemudian dianalisis menggunakan XRD dan diperoleh nanomaterial berukuran 40,75 dan 47,03 nm. Hasil analisis menggunakan DRS diperoleh nilai energi band-gap masingmasing nanomaterial S/CuO/nGO sebesar 0,97 eV dan 1,25 eV. Sampel nanosheets GO, CuO, S/CuO (0,25/1; 0,75/1) dan S/CuO/nGO (0,25/1; 0,75/1) selanjutnya dilakukan uji antibakteri menggunakan metode MIC dan Difusi cakram. Hasil yang diperoleh dari metode MIC yaitu nanomaterial S/CuO/nGO 0,75/1 memiliki sensitivitas yang paling baik yaitu pada konsentrasi 0,01 mg/mL (bakteri Escherichia coli) dan 0,00125 mg/mL (bakteri Bacillus sp). Hasil konsentrasi MIC kemudian dilanjutkan pengujian menggunakan metode Difusi cakram dan diperoleh hasil, sampel nanosheets GO, CuO, S/CuO (0,25/1; 0,75/1) dan S/CuO/nGO (0,25/1; 0,75/1) teridentifikasi memiliki zona bening lebih maksimal pada perlakuan tanpa sinar yaitu kisaran 2-6 mm. Kata kunci: Nanosheets GO, S/CuO/nGO, Katalis, MIC, Difusi cakram In this research, synthesis and characterization of nanosheets GO were succesfully by using modified Hummers and ultrasonication method, CuO using the sol gel method, sulfur doped into CuO obtained S/CuO 0.25/1 and 0.75/1 catalyst respectively, and impregnation S/CuO catalyst to nanosheets GO with the wet impregnation method with helping of an ultrasonic cleaner instrument, S/CuO/nGO nanomaterials were obtained with a ratio of respectively 0.25/1 and 0.75/1 and then analyzed by using XRD and obtained nanomaterials measuring 40.75 and 47.03 nm. Based on the results of the analysis using DRS, the band gap energy values for each S/CuO/nGO nanomaterials were 0.97 and 1.25 eV. Nanosheets GO, CuO, S/CuO (0.25/1; 0.75/1) and S/CuO/nGO (0.25/1; 0.75/1) samples will subjected to antibacterial tests using MIC and Diffusion disc methods. The results by the MIC method, S/CuO/nGO 0.75/1 nanomaterials, had the best sensitivity at concentrations of 0.00125 mg/mL (Escherichia coli bacteria) and 0.01 mg/mL (Bacillus sp bacteria). Then, the MIC concentration was continued with the disc diffusion method and the results were obtained nanosheets GO, CuO, S/CuO (0.25/1; 0.75/1) and S/CuO/nGO (0.25/1; 0.75. /1) was identified as having a clearer zone that was maximum in the treatment without light, which was in the range of 2-6 mm Keywords: Nanosheets GO, S/CuO/nGO,Catalyst, MIC, Disk Diffusion
| Jenis Karya Akhir: | Skripsi |
|---|---|
| Subyek: | 500 ilmu pengetahuan alam dan matematika 500 ilmu pengetahuan alam dan matematika > 540 Kimia dan ilmu yang berhubungan |
| Program Studi: | FAKULTAS MIPA > Prodi Kimia |
| Pengguna Deposit: | 2308497026 . Digilib |
| Date Deposited: | 17 Oct 2023 10:09 |
| Terakhir diubah: | 17 Oct 2023 10:09 |
| URI: | http://digilib.unila.ac.id/id/eprint/76548 |
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