功能材料
功能材料
공능재료
JOURNAL OF FUNCTIONAL MATERIALS
2013年
20期
3007-3011
,共5页
磁性MCM-41/CdS%亚甲基蓝%可见光%光催化
磁性MCM-41/CdS%亞甲基藍%可見光%光催化
자성MCM-41/CdS%아갑기람%가견광%광최화
magnetic MCM-41/CdS%methylene Blue%visible-light%photocatalysis
采用两步沉淀法将 CdS 沉积在磁性 MCM-41上,制备新型磁性 MCM-41/CdS 复合材料。通过X射线衍射光谱(XRD)、高分辨透射电镜(HRTEM)、紫外-可见吸收光谱(UV-Vis )、振动样品磁强计(VSM)等对其进行表征。以亚甲基蓝(methylene blue,简称MB)为模拟污染物,考察了磁性MCM-41/CdS复合材料的可见光催化性能。结果表明,CdS 能有效地沉积在磁性 MCM-41上,与 CdS 相比,该复合材料对 MB 的光催化降解效率明显提高,且可通过外加磁场进行分离。
採用兩步沉澱法將 CdS 沉積在磁性 MCM-41上,製備新型磁性 MCM-41/CdS 複閤材料。通過X射線衍射光譜(XRD)、高分辨透射電鏡(HRTEM)、紫外-可見吸收光譜(UV-Vis )、振動樣品磁彊計(VSM)等對其進行錶徵。以亞甲基藍(methylene blue,簡稱MB)為模擬汙染物,攷察瞭磁性MCM-41/CdS複閤材料的可見光催化性能。結果錶明,CdS 能有效地沉積在磁性 MCM-41上,與 CdS 相比,該複閤材料對 MB 的光催化降解效率明顯提高,且可通過外加磁場進行分離。
채용량보침정법장 CdS 침적재자성 MCM-41상,제비신형자성 MCM-41/CdS 복합재료。통과X사선연사광보(XRD)、고분변투사전경(HRTEM)、자외-가견흡수광보(UV-Vis )、진동양품자강계(VSM)등대기진행표정。이아갑기람(methylene blue,간칭MB)위모의오염물,고찰료자성MCM-41/CdS복합재료적가견광최화성능。결과표명,CdS 능유효지침적재자성 MCM-41상,여 CdS 상비,해복합재료대 MB 적광최화강해효솔명현제고,차가통과외가자장진행분리。
Magnetic MCM-41/CdS composite was prepared via a two-step precipitation method through deposi-ting CdS on the magnetic MCM-41.XRD,HRTEM,UV-Vis absorption spectra and VSM were used to charac-terize the magnetic MCM-41/CdS composite.Methylene blue(MB)aqueous solution was used as a probe to evaluate the visible-light photocatalytic activity of magnetic MCM-41/CdS composite.The results showed that CdS was successfully deposited on the magnetic MCM-41,and magnetic MCM-41/CdS composite had higher visible-light photocatalytic activity than pure CdS.In addition,MCM-41/CdS composite could be easily separa-ted in an external magnetic field.
