User:Andrew K Farag/Notebook/CHEM-490/2014/09/08

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Description I started working this semester, Fall 2014, under the supervision of Dr. Hartings, with James and Eleni on Quantum Dots again. The project was started last semester in Chemistry-571, however not enough results were collected. This semester we will be working on synthesizing QDs again using Mercury instead. The procedure is according to Synthesis of NIR-Emitting, Tunable HgS Quantum Dots and their Applications in Metal-Ion Sensing.. Procedure 5mL of 5mM HgNO3--HgNO3 was not fully disolving so HgCl2 was used instead 5mL BSA (15mg/mL) final pH around 9 (adjusted by 1M NaOH)--The pH was around 10 in this reaction. Not enough calculations were taken when adding the NaOH. The variac was set on 55/100, temperature is around 115C vigorous stirring stir for 8-12 hours, till color is pale yellow Eleni followed the same procedure, however her solution was left in room temperature The nitrogen gas and the water supply under the hood was all set for the reflux reaction. Calculations Calculations for the HgCl2 and for the BSA are from Eleni's notebook HgCl2 in 50 mL of water 271.5(g/mol)*0.005(mol/L)*0.05L=0.067875g BSA in 50 mL of water 50mL*15(mg/mL)*1(g/1000mg)=0.75g NaOH 40(g/mol)*1(mol/L)*0.05L=2g of NaOH pellets. --1.9905 g were used