天然砂粒负载TiO_2光降解洗涤污水的研究

天然砂粒负载TiO_2光降解洗涤污水的研究V01．38No．3·118·化工新型材料NEWCHEMICAL～【ATERIAl5第38卷第3期2010年3月天然砂粒负载Ti02光降解洗涤污水董素芳禹坤(淄博职业学院化学工程系，淄博255013)的研究摘要以钛酸四丁酯为前驱物，采用溶胶-凝胶法，在低温或常温下通过溶液中发生水解、聚合等化学反应，先生成溶胶，进而生成具有一定空问结构的凝胶，然后经过干燥、减压、热处理，制备出纳米Ti()2并在砂粒载体上附着，并详细研究了砂粒负载Ti()2对洗涤污水的光催化降解等。关键词天然砂粒载体，纳米Ti02，溶胶一凝胶法，光催化降解，洗涤污水Researchofthelight—catalystdegradedasolutionofsandsbeadsloadedTi02towashing-upsewageDongSufangYuKun(DepartmentofChemicalEngineering，ZiboVocationalCollege，Zibo255013)AbstractThetextwithtetrabutyltitanateasprecursor，adoptedsol-gelmethod。passingtOtakeplacehydrolysisandpolymerizationetc．chemicalreactioninthesolutionunderthelowtemperature01thenormaltemperature．Firstbe—camedissolvegum，thenbornthegelwhichhadcertainspacestructure．Passbydry，decompressionandhotprocessing，makingthenano-TiOzcarriedinthesandsbeadsalsoupadheretO，andstudiedonthelight-catalystdegradedasolutionofsandsSbeadsloadedTi02tOwashing-upsewage．Keywordssandsbeadcarrybody，nano-Ti02，sol-gelmethod，light-catalystdegradation，washing-upsewage水体人为污染严重是