应用化工
應用化工
응용화공
Applied Chemical Industry
2015年
9期
1683-1686,1690
,共5页
陆光%王新洋%马国辉%王菲
陸光%王新洋%馬國輝%王菲
륙광%왕신양%마국휘%왕비
BiOCl%罗丹明B%纳米片
BiOCl%囉丹明B%納米片
BiOCl%라단명B%납미편
BiOCl%Rhodamine B%nano-plate
以一步合成法合成了BiOCl纳米片,并考察了制备溶液的pH对BiOCl晶形、形貌、光学性质及光催化效果的影响。采用X射线衍射谱(XRD)、扫描电子显微镜(SEM)、光致荧光光谱(PL)和紫外-可见漫反射光谱(UV-Vis)对所制的BiOCl样品进行表征,并以罗丹明B为目标降解物,研究不同制备溶液pH制得的BiOCl样品的光催化性能。表征结果表明,制备溶液的pH对BiOCl的形貌、晶粒均匀性、晶面生长性能、光生电子-空穴复合能力、禁带宽度都有很大的影响。罗丹明B降解实验结果表明,制备溶液pH=6的BiOCl纳米片具有最佳光催化活性,经可见光照射30 min后对罗丹明B的降解率达100%。此外,还对制备溶液pH对BiOCl光催化效果的影响机理进行推测。
以一步閤成法閤成瞭BiOCl納米片,併攷察瞭製備溶液的pH對BiOCl晶形、形貌、光學性質及光催化效果的影響。採用X射線衍射譜(XRD)、掃描電子顯微鏡(SEM)、光緻熒光光譜(PL)和紫外-可見漫反射光譜(UV-Vis)對所製的BiOCl樣品進行錶徵,併以囉丹明B為目標降解物,研究不同製備溶液pH製得的BiOCl樣品的光催化性能。錶徵結果錶明,製備溶液的pH對BiOCl的形貌、晶粒均勻性、晶麵生長性能、光生電子-空穴複閤能力、禁帶寬度都有很大的影響。囉丹明B降解實驗結果錶明,製備溶液pH=6的BiOCl納米片具有最佳光催化活性,經可見光照射30 min後對囉丹明B的降解率達100%。此外,還對製備溶液pH對BiOCl光催化效果的影響機理進行推測。
이일보합성법합성료BiOCl납미편,병고찰료제비용액적pH대BiOCl정형、형모、광학성질급광최화효과적영향。채용X사선연사보(XRD)、소묘전자현미경(SEM)、광치형광광보(PL)화자외-가견만반사광보(UV-Vis)대소제적BiOCl양품진행표정,병이라단명B위목표강해물,연구불동제비용액pH제득적BiOCl양품적광최화성능。표정결과표명,제비용액적pH대BiOCl적형모、정립균균성、정면생장성능、광생전자-공혈복합능력、금대관도도유흔대적영향。라단명B강해실험결과표명,제비용액pH=6적BiOCl납미편구유최가광최화활성,경가견광조사30 min후대라단명B적강해솔체100%。차외,환대제비용액pH대BiOCl광최화효과적영향궤리진행추측。
The BiOCl nanoplates were prepared by a one-step rout. And the influence of pH value on their crystalline phase,morphology,optical property and photocatalytic efficiency was studied by XRD,SEM, PL,UV-Vis and RhB photodegradation under visible-light irradiation. The characterization results showed that the pH can affect the morphology,uniformity of the grain,crystal growth performance,the compound ability of optical electronic-hole and the energy gap. The results of RhB photodegradation showed that BiOCl sample prepared at pH=6 has the best photocatalytic activity,and RhB was completely degraded within 30 min, the RhB degradation up to 100%. Moreover, the mechanism of RhB degradation over BiOCl samples prepared at different pH values was studied.