XRD patterns of Bi2S3NPS (a) undoped, (b) doped with 5 % Mn ions and (c) doped with 10 % Mn ions.
TEM images of Bi2S3NPs (a) undoped, (b) doped with 5 % Mn ions and (c) doped with 10 % Mn ions, (d) and (e) TEM images at higher magnification, (f) ED pattern of Bi2S3NPs.
HR-SEM images of (a) undoped Bi2S3 NPs, doped with (b) 5 % Mn ions and (c) 10 % Mn ions.
Table 1
Percentage Mn (at.%, wt.%) as a dopant in Bi2S3 host determined by EDX, ICP.
| Amount of Mn doped [at.%] used in synthesis | Actual amount of Mn in Bi2S3 matrix (from EDX) [%] | Mn/Bi [at.%] determined by ICP | Mn [wt.%] determined by ICP | Bi [wt.%] determined by ICP |
|---|---|---|---|---|
| 0 | – | – | – | – |
| 5 | 3.5 | 4.8 | 3.62 | 56.24 |
| 10 | 8.2 | 9.3 | 9.47 | 50.57 |
EDX analysis of Bi2S3NPs (a) undoped and doped with (b) 5 % Mn ions and (c) 10 % Mn ions.
FT-IR spectra of (A) Bi2S3NPs, (B) polyoxyethylene 100 sterate.
UV-Vis spectra of methyl violet degradation (a) without NPs (b) with Mn doped (5 %) Bi2S3NPs (c) with Mn doped (10 %) Bi2S3NPs.
UV spectra of redox reaction between and (a) with Mn doped (10 %) Bi2S3NPs, (b) with Mn doped (5 %) Bi2S3NPs, (c) without Bi2S3NPs.