Preparation of Cd-Loaded In₂O₃ Hollow Nanofibers by Electrospinning and Improvement of Formaldehyde Sensing Performance

Table 1

Experimental parameters and characterized results.

Sample	Cd(NO3)2·4H2O/In(NO3)3·4.5H2O (mg)	PVP (mg)	DMF/ethanol (mL)	Fiber diameter (nm)	Grain size (nm)
In2O3	0/764	917	5.6/7.0	156	26
In20Cd1	30.8/764	954	5.8/7.3	52	19
In10Cd1	61.6/764	1000	6.0/7.7	76	24
In1Cd1	308/383	830	5.0/6.4	88	42