Nimra noor  0807-Mphil-Chem-23 <br/><br/>
Phosphorous doped graphiticcarbon nitride  for detection of heavy metals  English 
2023-25 
 - GC University Lahore  Deptt: chemistry 
 -  Mphil thesis  CD 
<br/><br/> Abstract:<br/>Phosphorous doped grap hitic carbon nitride(p-Gc^D fabricated by hydrothermal method, using<br/>Urea and ammonium phosphate as precursors. The preparedp-GcN showed strong blue-green<br/>fluorescence, which is effectively quenched in the presence of Fe*3 ions. The fluorescence<br/>intensity decreases with increasing the concentration of Fe*3, following the stern-volmer<br/>relationship. A good linear range is obsen.ed rvithin the range of 10-100pM with low detection<br/>limit of 3'4 pM. The quench behavior confirmed static quenching mechanism, suggesting<br/>strong interaction between P-GCN and of Fe*3 ions. The observed ,6turn-off, fluorescence<br/>response demonstrates that P-GCN is highll.sensitive and selective for Fe3* detection, making<br/>it a promising candidate for en'ironmental and analytical apprications. 
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