使用聚苯胺/氧化石墨烯复合材料吸附水中的毒死蜱

IF 3.6 4区材料科学 Q2 MATERIALS SCIENCE, COMPOSITES

Journal of Thermoplastic Composite Materials Pub Date : 2024-03-21 DOI:10.1177/08927057241240723

Sachidananda Mohapatra, Rajat Kumar Sahoo, Rajesh Kumar Nayak, Bishnu Prasad Panda, Mayureshwar Sunil Konarde, Aswathy N R, Aswini Kumar Mohapatra

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引用次数: 0

摘要

氧化石墨烯和聚苯胺具有一些独特的性能，被认为是可用于各种应用领域的新一代材料。这些材料的一个主要应用是吸附污染物。在这项研究中，采用改进的 Hummers 法合成了不同氧化程度的氧化石墨烯。聚苯胺/氧化石墨烯复合材料是通过原位聚合合成的，GO 含量分别为 10%和 50%，然后使用 N-甲基-2-吡咯烷酮（NMP）作为分散剂，将复合材料浇铸在一次性注射器内。对含有农药毒死蜱的水进行了吸附实验。傅立叶变换红外光谱和 X 射线衍射对制备的材料进行了表征。通过扫描电镜图像对形态进行了研究。傅立叶变换红外光谱显示石墨烯上形成了 -OH、-COOH 等官能团，这可能会增加其亲水性和吸附性。复合材料的傅立叶变换红外光谱显示聚苯胺和氧化石墨烯之间形成了键。X 射线衍射峰与聚苯胺和石墨片的晶体相对应。通过使用气相色谱-质谱仪分析过滤前后的水样，确定了吸附效率。在去除毒死蜱的过程中，GO 含量为 50%的复合材料显示出最佳效果。然而，GO 含量为 10%的复合材料对毒死蜱的去除效率非常低。PANI/GO 复合材料是处理受农业污染物污染的河水的可能候选材料。

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Adsorption of chlorpyrifos in water using polyaniline/graphene oxide composites

Graphene oxide and polyaniline have some unique properties and are considered as new generation materials for various applications. One major application of these materials is the adsorption of pollutants. In this study, Graphene oxide was synthesized with different levels of oxidation by using the modified Hummers method. Polyaniline/graphene oxide composite was synthesized by in situ polymerization with GO loading at 10% and 50% and further the composite is casted inside a disposable syringe by using N-methyl-2-pyrrolidone (NMP) as a dispersing agent. An adsorption experiment was carried out for water containing pesticide chlorpyrifos. The produced materials were characterized by FTIR spectroscopy & and XRD. Morphology was studied by SEM images. The FTIR spectra shows the formation of functional groups like -OH, -COOH on graphene, which may increase the hydrophilicity and adsorption properties. FTIR spectra of the composite portrayed the formation of bonds between polyaniline and graphene oxide. XRD peaks were obtained corresponding to crystals of polyaniline and graphite sheets. The adsorption efficiency was determined by analysis of water samples before and after filtration by using GC-MS. The composite produced with 50% amount of GO showed optimum results for the removal of chlorpyrifos. However, the composite with 10% GO loading is showing very low efficiency for the removal of chlorpyrifos. The PANI/GO composite is a possible candidate for the treatment of river water polluted by agricultural pollutants.

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来源期刊

Journal of Thermoplastic Composite Materials 工程技术-材料科学：复合

CiteScore

8.00

自引率

18.20%

发文量

104

审稿时长

5.9 months

期刊介绍： The Journal of Thermoplastic Composite Materials is a fully peer-reviewed international journal that publishes original research and review articles on polymers, nanocomposites, and particulate-, discontinuous-, and continuous-fiber-reinforced materials in the areas of processing, materials science, mechanics, durability, design, non destructive evaluation and manufacturing science. This journal is a member of the Committee on Publication Ethics (COPE).