| Authors | مریم رضائی,Alaa Jawad Abdulzuhraa,Elmuez A. Dawi,Layth S. Jasim,Makarim A. Mahdi,احمد اکبری,مسعود صلواتی |
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| Journal | solar energy |
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| Page number | 1 |
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| Volume number | 114857 |
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| IF | ثبت نشده |
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| Paper Type | Full Paper |
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| Published At | 2026-07-03 |
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| Journal Grade | Scientific - research |
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| Journal Type | Electronic |
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| Journal Country | Iran, Islamic Republic Of |
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| Journal Index | JCR ,SCOPUS |
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| Keywords | Water treatment SnO2/Fe1.727Sn0.205O3 nanostructures Water, soluble organic dye removal Visible, light nano, photocatalyst |
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Abstract
Organic pollutants in wastewater can be treated sustainably with heterogeneous photocatalysts. Researchers
have focused considerable attention on tin oxide (SnO2) due to its superior photocatalytic activity, affordability,
and thermal stability. In this study, SnO2/Fe1.727Sn0.205O3 (SnO2/FSO) nanocomposites were successfully
fabricated via carboxylic acid-assisted auto-combustion route. The DRS plot revealed a significant bandgap
narrowing (1.75 eV), extending the optical response into the visible region. Vibrating sample magnetometer
(VSM) indicated superparamagnetic properties, supporting the in-situ formation of SnO2/FSO nanocomposites
and providing a potential route for magnetic separation. The photocatalytic performance of SnO2/FSO nanocomposites
was evaluated using Rhodamine B and acid red 14 under simulated solar light. The optimized photoreactions
including 30 mg of catalyst and 40 ppm of acid red 14 solution resulted in a maximum degradation
efficiency of 81.96% within 120 min. Followed by a pseudo-first-order model, kinetic studies of SnO2/FSO
nanocomposites were investigated in photocatalytic process. Scavenger experiments revealed that •OH was the
dominant reactive species, accompanied by significant contributions from photogenerated h+ and •O2???? .
