Zeolite　LZ-277　has　been　synthesized　from　inorganic　gel　system　via　a　hydrothermal　method　involving　structure-directing　agents.　The　structural　features　and　textural　properties　of　the　obtained　samples　were　extensively　characterized　using　powder　X-ray　diffraction　(XRD),　scanning　electron　microscopy　(SEM),　X-ray　fluorescence　(XRF),　N-2　adsorption-desorption　isotherms　and　thermogravimetric　analysis/differential　thermal　analysis　(TGA/DTA)　techniques.　In　an　effort　to　obtain　pure　zeolite　LZ-277　with　desert　rose-like　spherical　morphology,　we　have　systematically　investigated　the　influence　of　pH　value　of　starting　gel　on　the　crystallization　performance.　It　was　found　that　the　amorphous　phase,　formed　under　low　alkalinity　conditions,　could　be　transformed　to　pure　zeolite　LZ-277　by　increasing　the　pH　value　of　the　starting　gel　to　11.8.　However,　an　additional　phase　of　FAU-type　zeolite　was　generated　when　the　pH　value　was　increased　to　12.8,　and　the　sodalite　crystal　structure　was　eventually　produced　when　the　pH　value　reached　13.3.　In　addition,　in　order　to　evaluate　its　potential　application,　the　thermostability　of　ammonium-exchanged　LZ-277　was　preliminary　investigated　using　ion　exchange　methods,　XRD,　TEM　and　TGA/DTA　analyses.　(C)　2014　Elsevier　Inc.　All　rights　reserved.