TiO Zn0,5TiO Zn1TiO Zn1,5TiO Zn2TiO Ni0,5TiO Ni1TiO Ni1,5TiO Ni2TiO Zn0,5-Ni1TiO

3. Hasil Karakterisasi DR-UV

Fotokatalis Kadar Logam Band Gap TiO 2 - 3,42 NiTiO 2 0,5 3,10 1 3,08 1,5 3,01 2 3,22 ZnTiO 2 0,5 3,24 1 3,13 1,5 3,20 2 3,24 Zn-NiTiO 2 0,5 2,56 1 2,82 1,5 2,72 2 2,93

3.1. Perhitungan Band gap

3.1.1. TiO

2 y= 56,65x-194,1 0= 56,65x-194,1 194,1= 56,65x y = 56.65x - 194.15 R² = 0.9944 2 3 4 5 6 7 8 9 10 3.35 3.45 3.55 3.65 FR h v 2 hv 10 20 30 40 50 60 70 2 4 6 8 FR h v 2 hv x=3,42 eV e.g

3.1.2. Zn0,5TiO

2 y= 279,9x-908,5 0= 279,9x-908,5 908,5=279,9x x= 3,25 eV nilai e.g

3.1.3. Zn1TiO

2 y= 37,38x-117,3 0= 37,38x-117,3 117,3=37,38x x= 3,13 eV nilai e.g y = 279.92x - 908.56 R² = 0.9963 20 25 30 35 40 45 50 3.2 3.3 3.4 3.5 FR h v 2 hv y = 37.388x - 117.3 R² = 0.9954 1 2 3 4 5 3.1 3.15 3.2 3.25 3.3 FR h v 2 hv -200 200 400 600 800 2 4 6 8 FR h v 2 hv 20 40 60 80 2 4 6 8 FR h v 2 hv

3.1.4. Zn1,5TiO

2 y= 152,0x-486,7 0= 152,0x-486,7 486,7= 152,0x x= 3,20 eV nilai e.g

3.1.5. Zn2TiO

2 y = 443,1x – 1437 0 = 443,1x – 1437 443,1x = 1437 x = 3,24 eV nilai e.g y = 152.03x - 486.72 R² = 0.9992 5 10 15 20 25 30 3.17 3.27 3.37 3.47 FR h v 2 hv y = 443.15x - 1437.9 R² = 0.9964 10 20 30 40 50 60 70 3.2 3.25 3.3 3.35 3.4 FR h v 2 hv -20 20 40 60 80 100 2 4 6 8 FR h v 2 hv -20 20 40 60 80 100 120 140 2 4 6 8 FR h v 2 hv

3.1.6. Ni0,5TiO

2 y= 177,7x-551,8 0= 177,7x-551,8 551,8= 177,7x x= 3,11 eV nilai e.g

3.1.7. Ni1TiO

2 y= 34,33x – 105,8 0= 34,33x – 105,8 34,33x= 105,8 x= 3,08 eV nilai e.g y = 177.73x - 551.86 R² = 0.9985 5 10 15 20 25 3.1 3.15 3.2 3.25 FR h v 2 hv y = 34.331x - 105.83 R² = 0.999 2 3 4 5 6 7 8 2.9 3.1 3.3 3.5 FR h v 2 hv -5 5 10 15 20 25 30 35 40 2 4 6 8 FR h v 2 hv 50 100 150 200 250 300 350 2 4 6 8 FR h v 2 hv

3.1.8. Ni1,5TiO

2 y= 38,82x-117,1 0= 38,82x-117,1 117,1= 38,82x x= 3,01 eV nilai e.g

3.1.9. Ni2TiO

2 y= 273,1x-878,7 0= 273,1x-878,7 878,7= 273,1x x= 3,22 eV nilai e.g y = 38.821x - 117.18 R² = 0.9984 3 5 7 9 11 3.05 3.15 3.25 3.35 FR h v 2 hv y = 273.1x - 878.72 R² = 0.9911 10 15 20 25 30 35 3.15 3.25 3.35 FR h v 2 hv 5 10 15 2 4 6 8 FR h v 2 hv 500 1000 1500 2000 2500 2 4 6 8 FR h v 2 hv

3.1.10. Zn0,5-Ni1TiO

2 y= 3,168x-8,097 0= 3,168x-8,097 8,097= 3,168x x= 2,56 eV nilai e.g

3.1.11. Zn1-Ni1TiO