工业水处理
工業水處理
공업수처리
INDUSTRIAL WATER TREATMENT
2014年
6期
29-32
,共4页
光催化%BiOBr%甲基橙
光催化%BiOBr%甲基橙
광최화%BiOBr%갑기등
photocatalysis%BiOBr%methyl orange(MO)
采用聚乙烯吡咯烷酮(PVP)辅助溶剂热法,在120℃下合成了溴氧化铋(BiOBr)纳米片组装的微结构。研究表明,合成的BiOBr形状规则,尺寸均匀,并具有良好的结晶性;PVP的加入可使晶体的生长方向得到有效调控,尺寸显著降低。利用合成的BiOBr在紫外光照下降解甲基橙(MO),反应35 min降解率即可达90%以上;循环使用5次后,降解率仍在90%以上,表明BiOBr产品具有良好的光催化活性和稳定性。
採用聚乙烯吡咯烷酮(PVP)輔助溶劑熱法,在120℃下閤成瞭溴氧化鉍(BiOBr)納米片組裝的微結構。研究錶明,閤成的BiOBr形狀規則,呎吋均勻,併具有良好的結晶性;PVP的加入可使晶體的生長方嚮得到有效調控,呎吋顯著降低。利用閤成的BiOBr在紫外光照下降解甲基橙(MO),反應35 min降解率即可達90%以上;循環使用5次後,降解率仍在90%以上,錶明BiOBr產品具有良好的光催化活性和穩定性。
채용취을희필각완동(PVP)보조용제열법,재120℃하합성료추양화필(BiOBr)납미편조장적미결구。연구표명,합성적BiOBr형상규칙,척촌균균,병구유량호적결정성;PVP적가입가사정체적생장방향득도유효조공,척촌현저강저。이용합성적BiOBr재자외광조하강해갑기등(MO),반응35 min강해솔즉가체90%이상;순배사용5차후,강해솔잉재90%이상,표명BiOBr산품구유량호적광최화활성화은정성。
Polyvinyl pyrrolidone(PVP) solvothermal method has been used for the synthesis of BiOBr nanoflakes-assembled micro-structure at 120 ℃. The product is characterized by regular shape ,uniform size and good crys-tallinity. The addition of PVP plays an important role in regulating the growing direction of crystals ,and reducing the size of microspheres significantly. Methyl orange can be degraded with the synthesized BiOBr under ultraviolet illu-mination. The degradation rate can be higher than 90%in 35 min. The product still maintains the degradation rate at 90%,after being used 5 times. It reveals that the prepared BiOBr has good photocatalytic activity and stability.