Core-Shell Nanostructure of 𝛼-Fe₂O₃/Fe₃O₄: Synthesis and Photocatalysis for Methyl Orange

Table 1

Different samples obtained from adjusting reaction conditions: different molar ratios of H₂O and EtOH, oxidation temperature, and oxidation time.

Sample	H2O/mL	EtOH/mL	Primary product	Oxidation Temp./°C	Oxidation Time/min	Oxidation product
S1	60	0	Fe3O4	380	30	Fe3O4
S2	30	30	Fe3O4	380	10	α-Fe2O3
S3	30	30	Fe3O4	310	30	α-Fe2O3/Fe3O4
S4	20	40	Fe3O4	310	10	α-Fe2O3