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Position: Home > Articles > Study on Adsorption Performance of the Walnuts Shell for the Neutral Red Dyes Anhui Agricultural Science Bulletin 2017 (17) 82-84+94

核桃壳对中性红染料吸附性能的研究

作  者:
李术英
单  位:
漳州市龙文区环境保护监测站
关键词:
核桃壳粉;吸附;中性红;吸附等温线;吸附动力学
摘  要:
该研究选择天然核桃壳作为生物吸附剂,分析了其对水溶液中中性红的吸附行为,考察了吸附剂用量、溶液初始浓度、pH值、离子浓度、振荡时间等因素对吸附性能的影响。结果表明,随着吸附剂用量增大、溶液初始浓度增大、pH值的增大、离子浓度的降低、振荡时间的增加,核桃壳对中性红的吸附率增大。中性红吸附过程符合Langmiur和Freundlich吸附等温行为,核桃壳对中性红的吸附过程可以用准二级动力学模型较好地描述。
译  名:
Study on Adsorption Performance of the Walnuts Shell for the Neutral Red Dyes
作  者:
Li Shuying;Environmental Protection Monitoring Station of Longwen District;
关键词:
Walnuts shell powder;;Adsorption;;Neutral red(NR);;Adsorption thermodynamics;;Adsorption kineticics
摘  要:
The adsorption behavior of neutral red(NR)in aqueous solution was studied using walnuts shell powder(WSP)as biosorbent.And the effects of factors like adsorbent dosage,initial concentration of solution,pH value,ion concentration and oscillation time on adsorption property were all investigated.Results show that the adsorption rate of WSP for NR increased with the increaing adsorbent dosage,increasing initial concentration of solution,increasing pH value,increasing oscillation time and decreasing ion concentration.The NR adsorption process corresponds to the Langmiur and Freundlich adsorption isotherm behavio,and the adsorption process of WSP for NR can be well described with pseudo-second-order model.

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