CAJ | 학술논문

采用添加壳聚糖(CTS)的溶胶-凝胶法制备了具有较高光催化活性的TiO_2光催化剂,并用XRD、TEM、BET和IR等手段对其进行表征.结果表明,CTS的添加使TiO_2,衍射强度增强、分散性提高、比表面积增大从而使光催化活性提高;用所制备的催化剂光催化降解甲基橙反应60 min后,其去除率由不添加CTS所制备TiO_2的32%提高到48%,TOC去除率由14%提高到23%.
채용첨가각취당(CTS)적용효-응효법제비료구유교고광최화활성적TiO_2광최화제,병용XRD、TEM、BET화IR등수단대기진행표정.결과표명,CTS적첨가사TiO_2,연사강도증강、분산성제고、비표면적증대종이사광최화활성제고;용소제비적최화제광최화강해갑기등반응60 min후,기거제솔유불첨가CTS소제비TiO_2적32%제고도48%,TOC거제솔유14%제고도23%.
This paper investigated the process of preparing chitosan ( CTS ) added TiO_2 photocatalyst with high photocatalytic activity by a sol-gel method, using Ti(OBu)_4 as precursor and ethanol as solvent. The catalyst was characterized by XRD, IR, TEM and BET methods. The optimum concentration of CTS added is lwt% . The photocatalytic activity of CTS added TiO_2 was improved than TiO_2 alone. After 60 minutes photocatalytic degradation for methyl orange, the removal rate increased from 32% to 48% ,and the removal rate of TOC increased from 14% to 23% compared to pure TiO_2.