Sample

IR integrated intensity

at 30˚C [cm∙g⁻¹]

Desorption ratio (adsorption at 30˚C

and desorption at 80˚Cor 100˚C) [%]

80˚C

100˚C

Z02 (SAPO-34)

35,400

72.3

84.3

Z02-NaOH (0.001 M)

35,300

73.2

86.4

Z02-NaOH (0.005 M)

39,300

79.9

88.2

Z02-NaOH (0.01 M)

25,700

69.5

78.0

Z02-NaOH (0.2 M)

1100

43.2

55.3

Z02-NH₄OH

40,000

81.1

89.6

Z02-NH₄OH-C

37,800

83.5

91.3