明胶微球的制备与其对阴离子染料的吸附性能分析

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1、Theexpectedproductsweregotintheexperiment，accordingtotheexpectedroute．ThecrystallinestateofthegelatinmicrosphereswascharacterizedbyXRD．Theresultsindicatedthatthecrystallinestateofthegelatinhadnotbeenaffectedbycrosslinkingofthe91utaraldehyde．heatstabilityofgelatinmicrosphereswasdetectedbyTG．T

2、heresultshowedthatthethermaldecompositionformofgelatinmicrosphereswassingleandtheheatstabilitywasgood．TheweightlOSSratewas80％fromstartingtofinishingofthedecomposition．Inaddition，comparingTGcurveofthegelatinwiththatofgelatinmicrospheres，thecrosslinkingmechanismofgelatinandglutaraldehydecouldb

3、edeterminedinitiallytotheSchiffBasemechanism．Theisoelectricpointofthegelatinmicrosphereswasgotfor3．2byZeta—PotentialLocator．ThemorphologyofgelatinmicrosphereswhichweretreatedundertheacidandalkaliconditionswasobservedbySEM．Itwasfoundthattheperformanceofresistingacidandalkaliofgelatinmicrosphe

4、reswasverystrong．experimentresultsofthestaticadsorptionshowedtheoptimumconditionsfollowasPHoftheAcidRedBandReactiveBrilliantRedX．Bfor3andPHoftheDirectSkyBlue6Bfor5．temperaturefor30℃，treatedtimefor60min，whentheconcentrationofthetreatedofthesimulativeanionicdyewastewaterincludingtheAcidRedB，Re

5、activeBrilliantRedX．BandDirectSkyBlDe6Bwas0．5g／L．Undertheexperimentalconditionstreated。theinitialconcentrationofthesimulativewastewaterofthethreeanionicdyesshouldnotmorethanO．5，O．3，O．29／L．Theiradsorptioncapacitygotrespectivelyto448，320and245．3mg／gandthedecolouringratewasmorethan98％．Afteradso

6、rbingthedyes，themorphologyofgelatinmicrosphereswashardlyaffected．Theexperimentresultsofthedesorption．secondadsorptionshowedthatthedesorptionrateofgelatinmicrosphereinthel09／LofNaOHsolutionwashigherthanthatinthedistilledwater．Theoptimumtemperaturewas30℃andgettingtothedesorptionbalanceneededfo

7、r80min．Theone．timedesorptionratecangotto88％inthealkalisolution．ThegelatinmicrosphereswhichweredesorbedcouldbeIVrecycledandusedforsecondaryadsorption．Thesaturatedadsorptioncapacitywasneartothatofthefirstadsorption．Sotheycanbeandreused．Thegelatinmicr