紫外光促进盐酸聚苯胺催化H_2O_2氧化处理罗丹明B废水  

Treatment of rhodamine B effluent using hydrogen peroxide catalyzed by hydrochloride polyaniline under ultraviolet

作　　者：占昌朝[1,2] 曹小华[1,2] 严平[1] 王剑波[2] 谢宝华[1] 江小平[1] 

机构地区：[1]九江学院化学与环境工程学院,九江332005 [2]浙江工业大学化学工程与材料学院,杭州310014

出　　处：《环境工程学报》2013年第5期1717-1722,共6页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(21161009);江西省自然科学基金资助项目(20114BAB213002);江西教育厅科技基金资助项目(GJJ13723);九江学院大学生自主创新项目(11XSCXXSY57)

摘　　要：以苯胺和过硫酸铵为主要原料合成了盐酸聚苯胺(HClPANI)催化剂,并通过FTIR、XRD、SEM和EDS对催化剂进行了表征。研究了在紫外光照下、HClPANI催化H2O2氧化处理罗丹明B染料废水工艺参数,探讨了各种因素对废水脱色效果的影响,并对催化氧化机理进行了初步探讨。结果表明,催化剂HClPANI对催化H2O2氧化处理罗丹明B具有较好的催化活性、稳定性和重复使用性能。UV-H2O2-HClPANI体系产生了明显的协同效应,在pH=3、200 mg/L的罗丹明B废水中,30%H2O2用量为1.2 mL/L、HClPANI用量1 g/L、反应温度25℃、紫外灯功率500 W、光照70 min,罗丹明B脱色率达到了98.2%。Hydrochloride polyaniline （HC1PANI） catalysts synthesized from aniline and ammonium persul- fate as the main raw materials were characterized by FTIR, XRD,SEM and EDS. The degradation of rhodamine B （RhB） wastewater with HC1PANI and hydrogen peroxide was investigated under ultraviolet irradiation. The effect of different factors and synergetic effect on the degradation of RhB were studied and the mechanism of catalytic oxidation of RhB was discussed. The results showed that HC1PANI catalyst has good catalytic activity, stablity and recyclability for the degradation of RhB. For 250 mL solution with initial pH value of 3 and RhB concentra-tion of 200 mg/L, the decoloration rate of the RhB was up to 98.2% under the optimal reaction conditions （ i. e. 30% hydrogen peroxide dosage： 1.2 mL/L, HC1PANI mass： 1 g/L, reaction temperature： 25℃ , the high pres-sure mercury Damp power： 500 W, the radiation time： 70 min）. Degradation process of RhB wastewater by ultra-violet, hydrogen peroxide and HC1PANI have synergetic effect.

关 键 词：紫外光 盐酸聚苯胺 过氧化氢 罗丹明B 协同效应 

分 类 号：X79[环境科学与工程—环境工程]