Optical and Thermal Properties of Zn/Al-Layered Double Hydroxide Nanocomposite Intercalated with Sodium Dodecyl Sulfate

Table 1

The indexing and lattice parameters (, , and ) of the PXRD for the ZnrAl-LDH and LDH-SDS with different concentration of SDS.

Parameter (nm)				Interlayer thickness^a
Zn2-Al-LDH	0.30	2.64	0.88	0.40	30.29
LDH-SDS 0.2 M	0.30	7.67	2.55	2.07	29.99
LDH-SDS 0.4 M	0.30	7.74	2.58	2.10	42.89
LDH-SDS 0.8 M	0.30	7.78	2.59	2.11	51.44
Zn3-Al-LDH	0.30	2.65	0.88	0.40	23.67
LDH-SDS 0.2 M	0.30	7.81	2.60	2.12	45.97
LDH-SDS 0.4 M	0.30	7.66	2.55	2.07	28.07
LDH-SDS 0.8 M	0.30	7.76	2.58	2.10	34.38
Zn4-Al-LDH	0.30	2.66	0.88	0.40	28.85
LDH-SDS 0.2 M	0.30	7.69	2.56	2.08	23.42
LDH-SDS 0.4 M	0.30	7.84	2.65	2.12	31.57
LDHS-DS 0.8 M	0.30	7.73	2.57	2.09	33.09

Interlayer thickness = (—brucite-like sheet thickness).
(average crystallite size in direction) = value calculated from the values of (003), (006), and (009) diffraction peaks using the Scherrer equation.