%0 Journal Article
%T The efficiency and mechanisms of the enhancement of hydroquinone on the degradation of reactive red MX-5B by heterogeneous Fenton-like reaction<br>对苯二酚强化多相类-Fenton过程降解活性艳红MX-5B的效能与机理
%A LIU Qiang
%A SUN Yingping
%A WANG Xiaoxiong
%A JIANG Chengchun
%A <br>刘强
%A 孙英平
%A 汪小雄
%A 姜成春
%J 环境科学学报
%D 2012
%I 
%X In this study a Si-FeOOH heterogeneous catalyst for the Fenton-like reaction was prepared by sodium hydroxide precipitation. At room temperature, the influence of hydroquinone on the degradation of reactive red MX-5B by Fenton-like was investigated. This paper also studied the influencing factors of Fenton-like reaction on the decolorizing rate of reactive red MX-5B, such as pH, the dosages of H2O2, Si-FeOOH and reactive red MX-5B. The mechanisms of the degradation of reactive red MX-5B by Si-FeOOH/H2O2/hydroquinone system were also discussed. Experimental results showed that the effect of the degradation of reactive red by Si-FeOOH heterogeneous Fenton-like reaction under the addition of hydroquinone was remarkable. The optimal conditions were the initial concentration of reactive red MX-5B 10 mg·L-1, Hydroquinone dosage 0.55 mg·L-1, catalyst dosage100 mg·L-1, and H2O2 dosage 51mg·L-1 at pH of 3. Under these conditions, the removal of reactive red MX-5B could reach 94.69%. In addition, the decolorizing rate of the reactive red MX-5B was correlated with the iron ions concentration in the reaction system. This result indicated that in the heterogeneous Fenton-like reaction, apart from the surface adsorbed catalysis, there may exist a homogeneous catalysis effect similar to homogeneous Fenton-like reaction in the solution.
%K Si-FeOOH
%K hydroquinone
%K reactive red
%K dissolved iron<br>Si-FeOOH
%K 对苯二酚
%K 活性艳红
%K 溶铁量
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=03A55E61A8750ACAC6AF81EF9E2AC838&aid=F6F80FAD71E363AE2B71DA4768923703&yid=99E9153A83D4CB11&vid=9971A5E270697F23&iid=DF92D298D3FF1E6E&sid=87A9A510C01DA8C7&eid=2C0CC79052581771&journal_id=0253-2468&journal_name=环境科学学报&referenced_num=1&reference_num=42