改性牡蛎壳粉的制备及其对Cd2+的吸附

›› 2015, Vol. 37 ›› Issue (6): 460-470.

改性牡蛎壳粉的制备及其对Cd2+的吸附

苏永昌,林荣晓,刘秋凤,刘淑集,吴成业

福建省水产研究所

收稿日期:2015-09-22 修回日期:2015-11-16 出版日期:2015-12-25 发布日期:2015-12-16
通讯作者: 苏永昌

Preparation of modified oyster shell powder and the adsorption of Cd2+ in water

Yong-Chang SU ², ², ²,wu chengye²

Received:2015-09-22 Revised:2015-11-16 Online:2015-12-25 Published:2015-12-16
Contact: Yong-Chang SU

摘要/Abstract

摘要： 以十二烷基磺酸钠（SDS）为改性剂，制备了有机改性牡蛎壳粉，并以Cd2+的去除率为指标进行正交实验分析，确定最佳改性工艺。通过红外光谱（FTIR）、扫描电镜（SEM）、能谱（EDS）对有机牡蛎壳粉进行表征，并进行了其对Cd2+的吸附动力学研究。正交实验结果表明，最佳改性工艺条件为：SDS用量为牡蛎壳粉质量的15%，改性时间为120 min，改性温度为60℃，改性pH值为7。FTIR、SEM和EDS图谱表明SDS对牡蛎壳粉的改性是成功的。动力学研究表明改性牡蛎壳粉对Cd2+的吸附符合准二级动力学方程。

关键词: 牡蛎壳粉, 改性, Cd2+, 吸附动力学, oyster shell powder, modified, Cd2+, adsorption kinetics

Abstract: Sodium dodecyl sulfonate was added to the oyster shell powder aqueous solution and SDS-oyster shell powder was prepared. Orthogonal experiment was carried out to explore the best modification process, FTIR、SEM、EDS and adsorption kinetics of Cd2+ were researched. The results showed the best modified condition of oyster shell powder was: SDS 15% of oyster shell powder, modified time was 120 min, temperature was 60℃, modification pH value was 7. FTIR, SEM and EDS spectrum indicated that the modification was successful. The kinetics research showed that the adsorption of Cd2+ was conformed to the pseudo-second-order equation.

中图分类号:

X792

苏永昌林荣晓刘秋凤刘淑集吴成业. 改性牡蛎壳粉的制备及其对Cd2+的吸附[J]. , 2015, 37(6): 460-470.

Yong-Chang SU wu chengye. Preparation of modified oyster shell powder and the adsorption of Cd2+ in water[J]. , 2015, 37(6): 460-470.

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