A novel modification method for polystyrene microspheres with dithizone and the adsorption properties for Pb2+
A novel modification method for polystyrene microspheres with dithizone and the adsorption properties for Pb2+
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双硫腙改性聚苯乙烯微球的新方法及其对Pb2的吸附性能
DOI：
10.1007/s10965-020-02180-8
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发表时间：
2020-07
影响因子：
2.8
通讯作者：
Cao Meng
中科院分区：
文献类型：
--
作者：
Li Paiwei;Dai Xin;Yan Qilin;Wang Zhenxi;Zhang Shangxi;Cao Meng
众所周知，双硫腙对于保留重金属离子非常有效，并广泛用作检测方法中的显色剂。为了探索新型表面改性聚合物微球，本文通过在PS微球表面接枝双硫腙作为络合剂和显色剂，制备了新型改性聚苯乙烯(PS-g-D)微球。通过FT-IR分析了PS-g-D的结构，证明了双硫腙接枝PS微球的形成。采用TGA和SEM研究了PS及改性PS的热稳定性和表面形貌。 PS-g-D 的直径均匀，约为 1 μm，表现出良好的热稳定性。随着初始Pb2+浓度的降低，Pb2+的去除率增加并达到99%。等温线模型研究表明PS-g-D与Pb2+的吸附符合Langmuir和Temkin吸附等温线模型。 PS-g-D 的吸附动力学可以通过准二阶模型得到很好的描述。可以看出，改性PS微球表现出良好的吸附性能，由于引入双硫腙作为络合剂和显色剂，具有作为水处理工业新型吸附剂的真正潜力。
Dithizone is known to be very effective for heavy metal ions retention and widely used as developer in detection methods. To explore a novel surface modified polymer microspheres, this paper prepared a novel modified polystyrene (PS-g-D) microspheres by grafting dithizone as the complexing agent and developer on the surface of PS microspheres. The structure of PS-g-D was analyzed by FT-IR, and the formation of dithizone grafted PS microspheres was proved. The thermal stability and surface morphology of PS and modified PS were studied by TGA and SEM. PS-g-D had a uniform diameter of about 1 μm and exhibited a good thermal stability. The Pb2+removal increased and reached up to 99% with the decrease of initial Pb2+concentrations. The study of the isotherms model showed that the adsorption between PS-g-D and Pb2+is consistent with the Langmuir and Temkin adsorption isotherm models. The adsorption kinetics of PS-g-D is described well by the pseudo-second-order model. It can be seen that the modified PS microspheres exhibit a good adsorption property, and has real potential as a novel adsorbent for water treatment industry due to the introduction of dithizone as complexing agent and developer.
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影响因子：
2.4
作者：
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通讯作者：
G. Mühlbachová;T. Šimon
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影响因子：
2
作者：
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影响因子：
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3.4
作者：
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Jing Ma;Yi He;Guangyong Zeng;Fei Li;Yubin Li;Jian-Ying Xiao;Shuizhen Yang
影响因子：
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作者：
Shirzadi, Hamid;Nezamzadeh-Ejhieh, Alireza
通讯作者：
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