材料科学
锌
吸附
多孔性
甲基橙
化学工程
比表面积
铟
发光
纳米颗粒
形态学(生物学)
降水
纳米技术
光催化
催化作用
冶金
有机化学
复合材料
化学
物理
光电子学
生物
气象学
工程类
遗传学
作者
A.I. Cadiş,Laura Mureşan,I. Perhaiţa,Liviu Pop,Kata Saszet,Lucian Barbu‐Tudoran,Gheorghe Borodi
标识
DOI:10.1007/s11051-022-05458-8
摘要
IntroductionSynthesis of nanostructured materials with well-controlled morphology and large specific surface area is essential in adsorption and catalysis for environmental depollution applications.Methods and objectivesIn the present work, several varieties of high porous zinc indium sulfide (ZnIn2S4) were prepared using microwave-assisted and oil bath precipitation. The role of synthesis temperature and zinc concentration on the morpho-structure, porosity, and optical properties of ZnIn2S4 was investigated.ResultsHexagonal ZnIn2S4 phase was formed at 180°C while disordered cubic ZnS-In2S3 phase was identified at 160°C. Based on ICP-OES measurements, it was found that all samples contain lower amounts of zinc than theoretically expected leading to non-stoichiometric compounds. The specific surface area increases from 88.4 to 425.6 m2/g with temperature and zinc amount, values that are higher than those reported in literature. The morphology of ZnIn2S4 is changing from agglomerated rounded nanoparticles to micro-flower, nano-petals, or hollow microspheres depending on the synthesis conditions. A growth mechanism was also proposed for all the nanostructures with different morphologies. The band gap of ZnIn2S4 decreases from 3.61 to 2.81 eV due to morpho-structural and porosity changes. The blue-green luminescence was attributed to different defect sites in ZnIn2S4 structures. Adsorption investigations of the methyl orange were carried out and discussed.ConclusionOil - bath samples present a higher adsorption ability than micro-wave samples due to structural and morphology differences.Graphical abstract
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