Table 4. Optimization of Conditions for the Cr(VI) Reduction by Pdx/CLS Nanocomposites and HCOOH at 50 °C.
| entry | catalyst (mg) | HCOOH (mL) | time |
|---|---|---|---|
| 1 | 1.0 | 3 ha | |
| 2 | CLS (5.0) | 1.0 | 1 hb |
| 3 | Pd15/CLS (3.0) | 1.0 | 3:40 min |
| 4 | Pd15/CLS (5.0) | 1.0 | 2:38 min |
| 5 | Pd100/CLS (7.0) | 3 ha | |
| 6 | Pd100/CLS (3.0) | 1.0 | 2:15 min |
| 7 | Pd100/CLS (5.0) | 1.0 | 2 min |
No reaction.
Not complete.