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学科主题: 物理化学
题名: Liquid-liquid reaction of hydrogen peroxide and sodium hypochlorite for the production of singlet oxygen in a centrifugal flow singlet oxygen generator
作者: Cui, Rong-rong1;  Deng, Lie-zheng1;  Shi, Wen-bo1;  Yang, He-ping1;  Sha, Guo-he;  Zhang, Cun-hao1
通讯作者: 邓列征
关键词: chemical laser ;  singlet oxygen generator ;  chemical oxygen - iodine laser ;  hydrogen peroxide ;  sodium hypochlorite
刊名: QUANTUM ELECTRONICS
发表日期: 2011
DOI: 10.1070/QE2011v041n02ABEH014286
卷: 41, 期:2, 页:139-144
收录类别: SCI
文章类型: Article
部门归属: 11
项目归属: 1105
产权排名: 1,1
WOS标题词: Science & Technology ;  Technology ;  Physical Sciences
类目[WOS]: Engineering, Electrical & Electronic ;  Physics, Applied
摘要: Liquid-liquid reaction of hydrogen peroxide and sodium hypochlorite for the production of singlet oxygen in a centrifugal flow singlet oxygen generator
研究领域[WOS]: Engineering ;  Physics
英文摘要: An attempt is made to produce gas-phase singlet oxygen O-2(a(1)Delta(g)) in a liquid-liquid reaction between acidic hydrogen peroxide (AHP) and sodium hypochlorite (NaOCl). The attempt arises from the fact that basic hydrogen peroxide (BHP) has long been the prime source for producing singlet delta oxygen through its reaction with chlorine. However, BHP suffers from the defect of being unstable during storage. Exploratory experiments were performed in a centrifugal flow singlet oxygen generator (CF-SOG) with two streams of solutions, AHP and NaOCl, mixed in a slit nozzle and then injected into the arc-shaped concavity in the CF-SOG to form a rotating liquid flow with a remarkable centrifugal force. With the help of this centrifugal force, the product of the O-2((1)Delta) reaction was quickly separated from the liquid phase. The gas-phase O-2((1)Delta) was detected via the spectrum of O-2((1)Delta) cooperative dimolecular emission with a CCD spectrograph. Experimental results show that it is feasible to produce gas-phase O-2((1)Delta) from the AHP + NaOCl reaction, and the stronger the acidity, the more efficient the O-2((1)Delta) production. However, since in the AHP + NaOCl reaction, Cl-2 un-avoidably appears as a byproduct, its catalytic action on the decomposition of H2O2 into ground-state O-2 remains a major obstacle to utilising the AHP + NaOCl reaction in producing gas-phase O-2((1)Delta). Qualitative interpretation shows that the AHP + NaOCl reaction is virtually the reaction of interaction of molecular H2O2 with molecular HOCl, its mechanism being analogous to that of reaction of BHP with Cl-2, where HOOCl is the key intermediate. It is difficult to form the intermediate HOOCl via the H2O2 + NaOCl reaction in a basic medium, thus gas-phase O-2((1)Delta) cannot be obtained in appreciable quantities.
关键词[WOS]: CATALYZED DECOMPOSITION ;  MOLECULAR-OXYGEN ;  MECHANISM ;  CHLORINE ;  CHEMILUMINESCENCE ;  ACIDIFICATION ;  HYDROLYSIS ;  KINETICS ;  WATER
语种: 英语
WOS记录号: WOS:000288008800009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115240
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Lab 11th, Dalian 116023, Peoples R China

Recommended Citation:
Cui, Rong-rong,Deng, Lie-zheng,Shi, Wen-bo,et al. Liquid-liquid reaction of hydrogen peroxide and sodium hypochlorite for the production of singlet oxygen in a centrifugal flow singlet oxygen generator[J]. QUANTUM ELECTRONICS,2011,41(2):139-144.
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