利用蔗渣粉煤灰和表面功能化改性粉煤灰去除水溶液中的十二烷基苯磺酸钠

IF 1.6 4区 工程技术 Q3 CHEMISTRY, APPLIED
Arun Kumar, Alok Kumar Singh, Kaman Singh, Anil Mishra, Utkarsh Dixit, Ankita Agarwal
{"title":"利用蔗渣粉煤灰和表面功能化改性粉煤灰去除水溶液中的十二烷基苯磺酸钠","authors":"Arun Kumar, Alok Kumar Singh, Kaman Singh, Anil Mishra, Utkarsh Dixit, Ankita Agarwal","doi":"10.1002/jsde.12787","DOIUrl":null,"url":null,"abstract":"This study explores the efficacy of a cost‐effective, functionalized adsorbent derived from bagasse fly ash (FA) for the removal of the surfactant sodium dodecylbenzene sulfonate (SDBS) from aqueous solutions. The raw bagasse FA underwent a modification process involving reflux with TiO<jats:sub>2</jats:sub> in NaOH at 100°C for 24 h, resulting in a modified fly ash (MFA). Comparative analyses of the sorbents were conducted using scanning electron microscopy (SEM), transmission electron microscopy (TEM), powder X‐ray diffraction (pXRD), Brunauer–Emmett–Teller (BET) surface analysis, and Fourier‐transform infrared spectroscopy (FT‐IR). The surface area of the original FA was found to be 10.795 m<jats:sup>2</jats:sup> g<jats:sup>−1</jats:sup>, which increased to 30.597 m<jats:sup>2</jats:sup> g<jats:sup>−1</jats:sup> postmodification. Similarly, the crystallinity of FA was initially 49.36% and enhanced to 79.70% after the modification process. The adsorption process of SDBS onto both FA and MFA were found to follow pseudo‐second‐order kinetics. Moreover, the Langmuir adsorption isotherm was the most fitting model, as evidenced by the <jats:italic>R</jats:italic><jats:sup>2</jats:sup> values at 298 K for SDBS‐FA (0.99) and SDBS‐MFA (0.99), both of which are remarkably close to unity. The dimensionless separation factor (<jats:italic>R</jats:italic><jats:sub>L</jats:sub>) was determined to be less than one, indicating favorable adsorption. The maximum adsorption capacities predicted by the Langmuir model are 156.00 mg/g for FA and a notably higher 231.48 mg/g for MFA. Thermodynamic analysis revealed a positive change in enthalpy (Δ<jats:italic>H</jats:italic><jats:sup>o</jats:sup>) for SDBS‐FA and SDBS‐MFA of 54.50 and 124.48 KJ mol<jats:sup>−1</jats:sup>, respectively, suggesting endothermic adsorption. Additionally, the Gibbs free energy (Δ<jats:italic>G</jats:italic><jats:sup>o</jats:sup>) was negative for both SDBS‐FA and SDBS‐MFA, suggesting that the adsorption of SDBS is spontaneous.","PeriodicalId":17083,"journal":{"name":"Journal of Surfactants and Detergents","volume":null,"pages":null},"PeriodicalIF":1.6000,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Removal of sodium dodecyl benzene sulfonate using bagasse fly ash and surface functionalized modified fly ash from aqueous solutions\",\"authors\":\"Arun Kumar, Alok Kumar Singh, Kaman Singh, Anil Mishra, Utkarsh Dixit, Ankita Agarwal\",\"doi\":\"10.1002/jsde.12787\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This study explores the efficacy of a cost‐effective, functionalized adsorbent derived from bagasse fly ash (FA) for the removal of the surfactant sodium dodecylbenzene sulfonate (SDBS) from aqueous solutions. The raw bagasse FA underwent a modification process involving reflux with TiO<jats:sub>2</jats:sub> in NaOH at 100°C for 24 h, resulting in a modified fly ash (MFA). Comparative analyses of the sorbents were conducted using scanning electron microscopy (SEM), transmission electron microscopy (TEM), powder X‐ray diffraction (pXRD), Brunauer–Emmett–Teller (BET) surface analysis, and Fourier‐transform infrared spectroscopy (FT‐IR). The surface area of the original FA was found to be 10.795 m<jats:sup>2</jats:sup> g<jats:sup>−1</jats:sup>, which increased to 30.597 m<jats:sup>2</jats:sup> g<jats:sup>−1</jats:sup> postmodification. Similarly, the crystallinity of FA was initially 49.36% and enhanced to 79.70% after the modification process. The adsorption process of SDBS onto both FA and MFA were found to follow pseudo‐second‐order kinetics. Moreover, the Langmuir adsorption isotherm was the most fitting model, as evidenced by the <jats:italic>R</jats:italic><jats:sup>2</jats:sup> values at 298 K for SDBS‐FA (0.99) and SDBS‐MFA (0.99), both of which are remarkably close to unity. The dimensionless separation factor (<jats:italic>R</jats:italic><jats:sub>L</jats:sub>) was determined to be less than one, indicating favorable adsorption. The maximum adsorption capacities predicted by the Langmuir model are 156.00 mg/g for FA and a notably higher 231.48 mg/g for MFA. Thermodynamic analysis revealed a positive change in enthalpy (Δ<jats:italic>H</jats:italic><jats:sup>o</jats:sup>) for SDBS‐FA and SDBS‐MFA of 54.50 and 124.48 KJ mol<jats:sup>−1</jats:sup>, respectively, suggesting endothermic adsorption. Additionally, the Gibbs free energy (Δ<jats:italic>G</jats:italic><jats:sup>o</jats:sup>) was negative for both SDBS‐FA and SDBS‐MFA, suggesting that the adsorption of SDBS is spontaneous.\",\"PeriodicalId\":17083,\"journal\":{\"name\":\"Journal of Surfactants and Detergents\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.6000,\"publicationDate\":\"2024-07-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Surfactants and Detergents\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1002/jsde.12787\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Surfactants and Detergents","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1002/jsde.12787","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
引用次数: 0

摘要

本研究探讨了一种从甘蔗渣粉煤灰(FA)中提取的具有成本效益的功能化吸附剂从水溶液中去除表面活性剂十二烷基苯磺酸钠(SDBS)的功效。原始蔗渣飞灰经过改性处理后,在 100°C 下与 TiO2 在 NaOH 中回流 24 小时,得到改性飞灰(MFA)。使用扫描电子显微镜(SEM)、透射电子显微镜(TEM)、粉末 X 射线衍射(pXRD)、布鲁诺-艾美特-泰勒(BET)表面分析和傅立叶变换红外光谱(FT-IR)对吸附剂进行了比较分析。结果发现,原始 FA 的表面积为 10.795 m2 g-1,改性后增加到 30.597 m2 g-1。同样,FA 的结晶度从最初的 49.36% 提高到改性后的 79.70%。研究发现,SDBS 在 FA 和 MFA 上的吸附过程都遵循伪二阶动力学。此外,SDBS-FA(0.99)和 SDBS-MFA (0.99)在 298 K 时的 R2 值都非常接近于统一值,这表明 Langmuir 吸附等温线是最拟合的模型。无量纲分离因子 (RL) 小于 1,表明吸附效果良好。根据 Langmuir 模型的预测,FA 的最大吸附容量为 156.00 毫克/克,而 MFA 则高达 231.48 毫克/克。热力学分析表明,SDBS-FA 和 SDBS-MFA 的热焓(ΔHo)分别为 54.50 和 124.48 KJ mol-1,表明吸附是内热的。此外,SDBS-FA 和 SDBS-MFA 的吉布斯自由能(ΔGo)均为负值,表明 SDBS 的吸附是自发的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Removal of sodium dodecyl benzene sulfonate using bagasse fly ash and surface functionalized modified fly ash from aqueous solutions
This study explores the efficacy of a cost‐effective, functionalized adsorbent derived from bagasse fly ash (FA) for the removal of the surfactant sodium dodecylbenzene sulfonate (SDBS) from aqueous solutions. The raw bagasse FA underwent a modification process involving reflux with TiO2 in NaOH at 100°C for 24 h, resulting in a modified fly ash (MFA). Comparative analyses of the sorbents were conducted using scanning electron microscopy (SEM), transmission electron microscopy (TEM), powder X‐ray diffraction (pXRD), Brunauer–Emmett–Teller (BET) surface analysis, and Fourier‐transform infrared spectroscopy (FT‐IR). The surface area of the original FA was found to be 10.795 m2 g−1, which increased to 30.597 m2 g−1 postmodification. Similarly, the crystallinity of FA was initially 49.36% and enhanced to 79.70% after the modification process. The adsorption process of SDBS onto both FA and MFA were found to follow pseudo‐second‐order kinetics. Moreover, the Langmuir adsorption isotherm was the most fitting model, as evidenced by the R2 values at 298 K for SDBS‐FA (0.99) and SDBS‐MFA (0.99), both of which are remarkably close to unity. The dimensionless separation factor (RL) was determined to be less than one, indicating favorable adsorption. The maximum adsorption capacities predicted by the Langmuir model are 156.00 mg/g for FA and a notably higher 231.48 mg/g for MFA. Thermodynamic analysis revealed a positive change in enthalpy (ΔHo) for SDBS‐FA and SDBS‐MFA of 54.50 and 124.48 KJ mol−1, respectively, suggesting endothermic adsorption. Additionally, the Gibbs free energy (ΔGo) was negative for both SDBS‐FA and SDBS‐MFA, suggesting that the adsorption of SDBS is spontaneous.
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
Journal of Surfactants and Detergents
Journal of Surfactants and Detergents 工程技术-工程:化工
CiteScore
3.80
自引率
6.20%
发文量
68
审稿时长
4 months
期刊介绍: Journal of Surfactants and Detergents, a journal of the American Oil Chemists’ Society (AOCS) publishes scientific contributions in the surfactants and detergents area. This includes the basic and applied science of petrochemical and oleochemical surfactants, the development and performance of surfactants in all applications, as well as the development and manufacture of detergent ingredients and their formulation into finished products.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信