摘要
通过实验分析了Fe(Ⅱ)/亚硫酸盐体系不同反应条件对RhB脱色的影响。结果表明:Na_(2)SO_(3)的浓度对RhB的脱色率有显著影响,合理的初始浓度可以降低体系中自由基的无用消耗。Fe(Ⅱ)的最佳初始浓度为0.25mmol·L^(-1)。Rh B的脱色率不随温度的升高而单调增加。与其他条件相比,pH值对RhB的脱色率影响最大。pH值为3时,RhB的脱色能力最强。在最佳反应条件下,脱色率最高可达93.28%,表明Fe(Ⅱ)/亚硫酸盐体系是RhB脱色的有效方法。
The effect of different reaction conditions of the Fe(Ⅱ)/sulfite system on the decolorization of RhB was analyzed through experiments. The experimental results showed that the concentration of Na_(2)SO_(3)had significant impact on the decolorization ratio of RhB, and a reasonable initial concentration reduced the useless consumption of the free radicals in the system. The optimal initial concentration of Fe(Ⅱ) was found to be 0.25 mmol·L^(-1). The decolorization ratio of RhB did not increase monotonously with the increase of temperature. Compared to the other conditions, pH showed the strongest influence on the decolorization ratio of RhB. The decolorization ability of RhB was the strongest under the pH value of 3. Under optimal reaction conditions, the highest decolorization ratio reached up to 93.28%, which suggested that the Fe(Ⅱ)/sulfite system was an effective method for the decolorization of RhB.
作者
尹新元
刘纪良
韩帅帅
武传燕
贾永英
YIN Xin-yuan;LIU Ji-liang;HAN Shuai-shuai;WU Chuan-yan;JIA Yong-ying(School of Civil and Architectural Engineering,Northeast Petroleum University,Daqing Heilongjiang 163000,China;School of Mechanical Science and Engineering,Northeast Petroleum University,Daqing Heilongjiang 163000,China)
出处
《当代化工》
CAS
2022年第1期8-12,共5页
Contemporary Chemical Industry
基金
国家自然科学基金项目(项目编号:52076036)
东北石油大学国家自然科学基金培育基金青年重点项目(项目编号:2018GPQZ-09)。
