超声-泡沫铜耦合降解罗丹明B  

Degradation of Rh B by Ultrasound Combined with Foamy Copper

作　　者：冀雅婉 邱珊[1] 李光明[1] 邓凤霞[1] 马放[1,2] 

机构地区：[1]哈尔滨工业大学市政环境工程学院 [2]哈尔滨工业大学城市水资源与水环境国家重点实验室,黑龙江哈尔滨150090

出　　处：《水处理技术》2016年第5期51-55,共5页Technology of Water Treatment

基　　金：国家科技重大专项(2013ZX07201007)

摘　　要：以泡沫铜作为催化剂与超声波耦合降解罗丹明B溶液,分别考察了H2O2投加量、溶液初始pH以及超声功率对罗丹明B降解效果的影响。结果表明,在H_2O_2的投加量为5.0 mmol/L、超声功率300 W、溶液初始pH为3.0的条件下,初始质量浓度为5 mg/L的罗丹明B溶液反应25 min,去除率为99.41%,比超声单独作用相比,增加了86.75个百分点。理论分析显示,超声-泡沫铜耦合体系通过羟基自由基氧化和泡沫铜还原协同降解罗丹明B。In the paper, rhodamine B（Rh B） was degraded by ultrasound-assisted Fenton-like process with the foam copper as the catalyst. The influencing factors, such as initial pH, the dosage of H_2O_2 and ultrasound power are studied. The results manifest that the optimum conditions： initial pH=3, dosage of H_2O_2 5.0 mmol/L, ultrasound power 300 W, ultrasound time 25 min. Under above conditions, the degradation of RhB was 99.41%, which improved by 86.75 percentage points compared with ultrasound alone. Meanwhile, it indicates that the degradation of RhB follows the oxidation of hydroxyl radicals and the reduction of foamy copper.

关 键 词：类FENTON 超声波 泡沫铜 罗丹明B 

分 类 号：X791[环境科学与工程—环境工程]