CAJ | 학술논문

采用柠檬酸络合剂辅助水热法，制备了不同 Fe 掺杂浓度的(0%，1%，2%，3%和4%(摩尔分数))ZnO复合纳米光催化剂。采用 X 射线衍射(XRD)、扫描电子显微镜(SEM)和紫外-可见漫反射光谱(DRS)等测试手段对纳米 Fe/ZnO 的晶体结构、微观形貌和光吸收性能等进行了表征，并以亚甲基蓝(MB)为模型污染物，在紫外光照下考察了纳米 Fe/ZnO 的光催化活性。经研究结果表明，该方法能成功地将 Fe 掺杂入 ZnO 晶体，并且当 Fe的掺杂量大于1%时，Fe/ZnO 样品对可见光区有明显的吸收。并且，Fe 掺杂明显提高了 ZnO 的光催化效果，当Fe 掺杂3%(摩尔分数)时，ZnO 样品的光催化活性最高，在紫外光照射100 min 后对 MB 的降解率可达到96.2%，较纯 ZnO 提高2.27倍。
채용저몽산락합제보조수열법，제비료불동 Fe 참잡농도적(0%，1%，2%，3%화4%(마이분수))ZnO복합납미광최화제。채용 X 사선연사(XRD)、소묘전자현미경(SEM)화자외-가견만반사광보(DRS)등측시수단대납미 Fe/ZnO 적정체결구、미관형모화광흡수성능등진행료표정，병이아갑기람(MB)위모형오염물，재자외광조하고찰료납미 Fe/ZnO 적광최화활성。경연구결과표명，해방법능성공지장 Fe 참잡입 ZnO 정체，병차당 Fe적참잡량대우1%시，Fe/ZnO 양품대가견광구유명현적흡수。병차，Fe 참잡명현제고료 ZnO 적광최화효과，당Fe 참잡3%(마이분수)시，ZnO 양품적광최화활성최고，재자외광조사100 min 후대 MB 적강해솔가체도96.2%，교순 ZnO 제고2.27배。
Fe doped ZnO photocatalyst with various doping concentration(0%, 1%, 2%, and 3%) were prepared with hydrothermal method aided by citric acid.The phases and morphologies and optical absorption properties of Fe doped ZnO microstructures were characterized by X-ray diffraction (XRD), scanning election microscope (SEM) and UV-Vis diffuse reflective spectrum (DRS).The photocatalytic performances of Fe/ ZnO photocatalyst with various doping concentration were studied using methylene blue as the stimulant pollutant.The measured results indicate that Fe can be successfully doped into ZnO crystals, and when the Fe doping amount is more than 1%, Fe/ZnO sample has obvious absorption to visible light area. Moreover, Fe doped ZnO microstructures can improve the performance of photocatalytic degradation.The optimal Fe content is 3%(mole fraction), and degradation rate for methylene blue after UV irradiation for 100 min can reach to 96.2%, increases by 2.27 times compared with pure ZnO.