CAJ | 학술논문

本实验通过溶胶-凝胶法制备了椰壳纤维活性碳掺杂的纳米TiO2、Fe3＋掺杂及Fe3＋,C共掺杂的纳米TiO2。并采用TEM、XRD、DSC-TGA、UV-Vis等检测手段对样品进行表征,结果表明经过掺杂的TiO2的吸收带边发生一定的红移。Fe3＋掺杂及Fe3＋,C共掺杂的TiO2的最佳掺杂量为4%,经过掺杂的TiO2在自然光下的催化效率比未经掺杂的TiO2有明显提升,经过在自然光下120 min的甲基橙模拟降解污水实验,经过掺杂的TiO2最大降解率可达42%。
본실험통과용효-응효법제비료야각섬유활성탄참잡적납미TiO2、Fe3＋참잡급Fe3＋,C공참잡적납미TiO2。병채용TEM、XRD、DSC-TGA、UV-Vis등검측수단대양품진행표정,결과표명경과참잡적TiO2적흡수대변발생일정적홍이。Fe3＋참잡급Fe3＋,C공참잡적TiO2적최가참잡량위4%,경과참잡적TiO2재자연광하적최화효솔비미경참잡적TiO2유명현제승,경과재자연광하120 min적갑기등모의강해오수실험,경과참잡적TiO2최대강해솔가체42%。
In the experiment,the coconut activated carbon doped TiO2,Fe3＋ doped and Fe3＋,C doped TiO2 were prepared by sol-gel process.The characteristics of TiO2 powder were in investigated by XRD,TEM,UV-Vis,DSC-TGA.The results indicated the absorption profile of TiO2 was shifted to longer wavelength by doping.Methyl orange was used as the degradable agent in photocatalytic erperiment in the visible-light.The optimal doping quantity of Fe3＋ doped and Fe3＋,C doped TiO2 was 4 %.The results indicated that methyl orange could be degraded 42 % by Fe3＋ doped TiO2 under the optimal conditions after 120 min.