. 2018 Jun 4;9:1629–1640. doi: 10.3762/bjnano.9.155

Table 1.

Sample labels, types and amounts of added dopants, thermal treatment temperatures and calculated crystallite sizes for different samples.

Sample name	Dopant; dopant source; amount of added dopant	Nominal amount of dopant relative to TiO₂ (atom %)	Measured amount (atom %) and type of dopant	Amount (mL) and type of acid added	Thermal treatment temperature (°C)	Calculated crystallite size (nm)

REF	–	–	–	18 HCl	450	39
Urea_5	N; urea; 15.699 mg	5	–	18 HCl	450	39
Urea_10	N; urea; 32.658 mg	10	–	18 HCl	450	50
Urea_15	N; urea; 66.060 mg	15	N; 1	18 HCl	450	41
Urea_20	N; urea; 112.605 mg	20	–	18 HCl	450	50
Thiourea_5	S; thiourea; 19.668 mg	5	–	18 HCl	450	43
Thiourea_10	S; thiourea; 41.329 mg	10	–	18 HCl	450	50
Thiourea_15	S; thiourea; 83.721 mg	15	S; 1	18 HCl	450	60
Thiourea_20	S; thiourea; 142.37 mg	20	–	18 HCl	450	46
S1	S; H₂SO₄; 1.65 mL (c = 12 M)	–	–	1.65 H₂SO₄	600	18
S2	S; H₂SO₄; 3.3 mL (c = 12 M)	–	–	3.3 H₂SO₄	600	10
S3	S; H₂SO₄; 4.95 mL (c = 12 M)	–	1	4.95 H₂SO₄	600	10
S4	S; H₂SO₄; 6.6 mL (c = 12 M)	–	–	6.6 H₂SO₄	600	11
S5	S; H₂SO₄; 8.25 mL (c = 12 M)	–	–	8.25 H₂SO₄	600	12
S3_N0.5	S; H₂SO₄; 4.95 mL (c = 12 M); N; NH₄NO₃; 13.765 mg	– 0.5	S; 1 N; 1	3.3 H₂SO₄	600	8
S3_N1	S; H₂SO₄; 4.95 mL (c = 12 M); N; NH₄NO₃; 27.679 mg	– 1	– –	3.3 H₂SO₄	600	10
S3_N2	S; H₂SO₄; 4.95 mL (c = 12 M); N; NH₄NO₃; 54.816 mg	– 2	– –	3.3 H₂SO₄	600	8
S3_N4	S; H₂SO₄; 4.95 mL (c = 12 M); N; NH₄NO₃; 109.658 mg	– 4	– –	3.3 H₂SO₄	600	8
S3_N6	S; H₂SO₄; 4.95 mL (c = 12 M); N; NH₄NO₃; 164.542 mg	– 6	– –	3.3 H₂SO₄	600	9
S3_N0.5+1% Pt	S; H₂SO₄; 4.95 mL (c = 12 M); N; NH₄NO₃; 13.765 mg; Pt; H₂PtCl₆; 290 μL (c =0.344 M)	– 0.5 1	S; 1 N; 1 Pt; 0.5	3.3 H₂SO₄	600	8
S3_N0.5+0.015 M Pt	S; H₂SO₄; 4.95 mL (c = 12 M); N; NH₄NO₃; 13.765 mg; Pt; H₂PtCl₆; 0.015 M	– 0.5	– –	3.3 H₂SO₄	600	–