Photochemistry Aspects of the Laser Pyrolysis Addressing the Preparation of Oxide Semiconductor Photocatalysts

Table 1

Experimental parameters and main crystallographic characteristics (estimated from XRD analysis) for the as-synthesized nano iron oxide samples.

Sample	ΦC2H4^∗ (through Fe(CO)5 [sccm]	Φair^∗ [sccm]	P^** [mbar]	𝑃𝐿^∗ [watt]	XRD analysis		EDAX-elemental analysis, at%
					a (unit cell parameter) [^′]	D (mean crystallite dimension) [nm]	Fe	O	C
01	145	70	300	55	8.364	4.5	36.29	52.99	10.72
02	145	70	300	35	8.377	3.0	35.09	55.12	9.79

^*Φ_C2H4 and Φ_air, are the flows of the ethylene (carrier of Fe(CO)₅ vapors) and of air oxidizer, respectively (in standard cubic centimeter per minute);^**P is the pressure in the reaction chamber (in mbar);^***𝑃_𝐿 is the laser power (in Watt).