Abstract
In the present study, SrxSn1-xS2 hexagonal nanoplates have been synthesized via a cost-effective hydrothermal route and characterized by XRD, UV-DRS, PL, SEM, EDXS, Zeta potential, and dye degradation. The XRD pattern confirms the structure and FESEM corroborates the hexagonal nanoplate morphology of all the synthesized samples while EDX ascertains the Sr presence in doped samples. The optical band gap energy (Eg) of the samples has been estimated using UV-DRS and is found in the visible region. The negative surface charge is ascertained using the Zeta potential (ζ) analyzer. The dye degradation efficiency of pristine and SrxSn1-xS2 is tested on RhB under a visible lamp of 250W for 120min and found highest for x = 0.06 sample (90.93 %). The adsorption kinetics follows the pseudo 2nd order model whereas photodegradation kinetics follows 1st order kinetics model. Further isotherms processes studied in the dark follow the Langmuir model.
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