Table 3 Element components detected by XRF.

From: The effect of positioning cations on acidity and stability of the framework structure of Y zeolite

Samples

XRF (wt.%)

La

Ca

Sr

Na

HY

–

–

–

0.14 (0.20) b

6LaHY

6.62 (6.74) a

–

–

–

10LaHY

10.82 (10.76) a

–

–

–

14LaHY

14.07 (14.47) a

–

–

–

9AEHY

–

1.70 (1.49) a

0.98 (3.25) a

–

15AEHY

–

2.72 (2.41) a

1.61 (5.26) a

–

21AEHY

–

3.69 (3.28) a

2.69 (7.16) a

–

  1. aThe data in brackets are corresponding theoretical mass fractions calculated by unit cell formulas (see Table 4).
  2. bThe data in bracket is the mass fraction of Na measured by atomic absorption spectrophotometer.
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