氨基硅烷功能化MCM-41去除阴离子染料的合成与表征:动力学与热力学研究

IF 1.2 Q4 NANOSCIENCE & NANOTECHNOLOGY

international journal of nano dimension Pub Date : 2016-12-01 DOI:10.7508/IJND.2016.04.005

A. Torabinejad, N. Nasirizadeh, M. Yazdanshenas, H. Tayebi

{"title":"氨基硅烷功能化MCM-41去除阴离子染料的合成与表征:动力学与热力学研究","authors":"A. Torabinejad, N. Nasirizadeh, M. Yazdanshenas, H. Tayebi","doi":"10.7508/IJND.2016.04.005","DOIUrl":null,"url":null,"abstract":"In this study, removal of Acid blue 62 from aqueous solution by mesoporous silicate MCM-41 modified by Aminopropyltriethoxysilane (APTES) composite was studied. Properties of synthesized composite were analyzed and confirmed by SEM, EDX and FTIR. Results show that Langmuir adsorption isotherm has the best compatibility with the results of experiments. Kinetic analysis using pseudo-first-order model, pseudo-second-order and the intra-particle diffusion model was carried out. Results also confirmed that adsorption process is compatible with the pseudo-second-order kinetic model. Thermodynamic parameters such as Gibbs free energy changes (ΔGo), Enthalpy changes (ΔHo) and Entropy changes (ΔSo) were calculated. Negative value of ΔGo and positive value of ΔHo show that adsorption of Acid blue 62 on aminated nanocomposite is a spontaneous process also endothermic.","PeriodicalId":14081,"journal":{"name":"international journal of nano dimension","volume":null,"pages":null},"PeriodicalIF":1.2000,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":"{\"title\":\"Synthesize and characterization of Aminosilane functionalized MCM-41 for removal of anionic dye: Kinetic and thermodynamic study\",\"authors\":\"A. Torabinejad, N. Nasirizadeh, M. Yazdanshenas, H. Tayebi\",\"doi\":\"10.7508/IJND.2016.04.005\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this study, removal of Acid blue 62 from aqueous solution by mesoporous silicate MCM-41 modified by Aminopropyltriethoxysilane (APTES) composite was studied. Properties of synthesized composite were analyzed and confirmed by SEM, EDX and FTIR. Results show that Langmuir adsorption isotherm has the best compatibility with the results of experiments. Kinetic analysis using pseudo-first-order model, pseudo-second-order and the intra-particle diffusion model was carried out. Results also confirmed that adsorption process is compatible with the pseudo-second-order kinetic model. Thermodynamic parameters such as Gibbs free energy changes (ΔGo), Enthalpy changes (ΔHo) and Entropy changes (ΔSo) were calculated. Negative value of ΔGo and positive value of ΔHo show that adsorption of Acid blue 62 on aminated nanocomposite is a spontaneous process also endothermic.\",\"PeriodicalId\":14081,\"journal\":{\"name\":\"international journal of nano dimension\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.2000,\"publicationDate\":\"2016-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"international journal of nano dimension\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.7508/IJND.2016.04.005\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"NANOSCIENCE & NANOTECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"international journal of nano dimension","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.7508/IJND.2016.04.005","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"NANOSCIENCE & NANOTECHNOLOGY","Score":null,"Total":0}

引用次数: 7

摘要

研究了氨基丙基三乙氧基硅烷(APTES)复合材料改性介孔硅酸盐MCM-41对酸性蓝62的去除效果。通过SEM、EDX和FTIR对合成的复合材料进行了性能分析和验证。结果表明，Langmuir吸附等温线与实验结果的相容性最好。采用伪一阶模型、伪二阶模型和颗粒内扩散模型进行了动力学分析。吸附过程符合准二级动力学模型。计算了吉布斯自由能变化(ΔGo)、焓变化(ΔHo)和熵变化(ΔSo)等热力学参数。负的ΔGo和正的ΔHo表明酸性蓝62在胺化纳米复合材料上的吸附是一个自发的吸热过程。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Synthesize and characterization of Aminosilane functionalized MCM-41 for removal of anionic dye: Kinetic and thermodynamic study

In this study, removal of Acid blue 62 from aqueous solution by mesoporous silicate MCM-41 modified by Aminopropyltriethoxysilane (APTES) composite was studied. Properties of synthesized composite were analyzed and confirmed by SEM, EDX and FTIR. Results show that Langmuir adsorption isotherm has the best compatibility with the results of experiments. Kinetic analysis using pseudo-first-order model, pseudo-second-order and the intra-particle diffusion model was carried out. Results also confirmed that adsorption process is compatible with the pseudo-second-order kinetic model. Thermodynamic parameters such as Gibbs free energy changes (ΔGo), Enthalpy changes (ΔHo) and Entropy changes (ΔSo) were calculated. Negative value of ΔGo and positive value of ΔHo show that adsorption of Acid blue 62 on aminated nanocomposite is a spontaneous process also endothermic.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

international journal of nano dimension NANOSCIENCE & NANOTECHNOLOGY-

CiteScore

2.80

自引率

20.00%

发文量