Khaled Elsayed Prof. Walid Tawfik Ashraf Khater Mohamed Fikry
الملخص الانجليزي
U sing calibration-free laser-induced breakdown spectroscopy, this study proposes a unique approach for detem1ining phosphorus (P) content in phosphogypsum (PG) waste samples (CF-LIBS). The PG-LIBS spectrum was created using a 50 ml Q-switched d: YAO laser. The emission intensity and sharp broadening for PI characteristic lines 213.61, 214. 9 I, and 215.40 nm under non-purged (air) and purged (helium) conditions were used to describe plasma development using electron density e and electron temperature Te. Te and Ne concentrations were shown to alter linearly with P concentrations of 4195, 5288, 6293, and 6905 ppm. For the non-purged PG, plasma Te and Ne levels rose from around 6900 to 8000 Kand l. Ix I 0^17 to 3.4x 10^ 17 cm-3, respectively. The Te and Ne of the PG purged with helium, on the other hand, varied from 8200 to 11000 K l.4x 10^ 17 to 3.5x IO ^17 cm-3, respectively. Te and Ne values, it is concluded, offer a fingerprint plasma characterization for a particular P content in PG sample. which may be utilized to detect P concentration without a comprehensive study of the PG. These findings represent a significant breakthrough in the field of environmental spectrochemical analysis.
تاريخ النشر
13/12/2022
الناشر
Conference: Advanced Materials December 13th Dec ,2021, UK.At: united kingdom
ا.د. وليد توفيق يونس | Prof. Walid Tawfik | 6344