Degradation of Methylene Blue Using Hydrothermally Synthesized α-Manganese Oxide Nanostructures as a Heterogeneous Fenton Catalyst

Table 1

Key XRD measurements of MnNSs obtained using the hydrothermal method.

hkl	Reference peak position (JCPDS 044-0141)	Experimental peak from XRD (2θ)	d-spacing from JCPDS 044-0141 (Å)	d-spacing from XRD (Å)	Lattice parameter from XRD (Å)
110	12.784	12.837	6.9190	6.8902	9.7442
200	18.108	18.203	4.8950	4.8695	9.7391
220	25.712	25.857	3.4620	3.4428	9.7377
310	28.842	28.855	3.0930	3.0915	9.7763
400	36.696	36.589	2.4470	2.4553	9.8215
211	37.523	37.693	2.3950	2.3845	5.8408
330	39.011	39.508	2.3070	2.2279	9.6692
420	41.226	41.086	2.1880	2.1951	9.3130
301	41.968	42.112	2.1510	2.1439	6.7798
411	49.865	50.003	1.8273	1.8225	7.7324
600	56.373	56.395	1.6308	1.6302	9.7813
431	56.928	56.947	1.6162	1.6157	8.2385
521	60.276	60.340	1.5342	1.5327	8.3950
002	65.109	65.469	1.4315	1.4245	2.8490
541	69.713	69.572	1.3478	1.3501	8.7501
312	72.713	72.886	1.2994	1.2967	4.8519