Nanoprecursors　used　as　a　structural　promoter　(SP)　were　prepared　by　a　hydrothermal　method　and　named　sol-SP.　After　centrifugation,　the　supernatant　and　precipitate　were　denoted　as　solution-SP　and　solid-SP,　respectively.　The　effect　of　the　additive　amount　on　the　structures　and　properties　of　the　synthesized　clinoptilolite　was　investigated　using　various　characterization　techniques.　The　activation　energies　of　crystallization　kinetics　during　induction　and　growth　periods　were　calculated.　The　results　showed　that　the　induction　period　is　the　control　step　during　the　synthesis　of　clinoptilolite,　while　additive　sol-SP　or　solid-SP　was　beneficial　to　shorten　the　induction　period　and　therefore　enhance　the　formation　of　the　crystal　nucleus.　When　their　pre-crystallization　time　was　too　long　or　the　additive　amount　was　too　much,　the　impure　phase　(phillipsite)　in　the　synthesized　clinoptilolite　was　easily　generated.　Although　the　addition　of　solution-SP　had　no　obvious　effect　on　the　induction　period,　it　promoted　the　growth　of　crystals　after　nucleation.　Finally,　the　adsorption　performances　for　CO2　and　CH4　were　preliminarily　assessed　using　synthetic　clinoptilolite　as　the　adsorbent,　showing　the　promising　application　for　the　separation　of　CO2/CH4.