对羟基苯甲酸甲酯在煅烧层状双氧水上的吸附：动力学和等温线模型

IF 2.218 Q2 Chemistry

Chemical Data Collections Pub Date : 2025-03-10 DOI:10.1016/j.cdc.2025.101187

N'guadi Blaise Allou , Patrick Athéba , Jitu Saikia , Kidjoufol Abdoul-Aziz Soro , Aimé Serge Ello

{"title":"对羟基苯甲酸甲酯在煅烧层状双氧水上的吸附：动力学和等温线模型","authors":"N'guadi Blaise Allou , Patrick Athéba , Jitu Saikia , Kidjoufol Abdoul-Aziz Soro , Aimé Serge Ello","doi":"10.1016/j.cdc.2025.101187","DOIUrl":null,"url":null,"abstract":"<div><div>This work aimed to study and model methylparaben (MPB) adsorption on calcined Mg/Al layered double hydroxides (LDH). After the precursor LDH synthesis followed by their calcination completed, adsorption tests were carried out by studying contact time, initial MPB concentration and temperature effects. Data collected from these tests were used to model MPB adsorption mechanism, both in terms of kinetics and isotherm, using several mathematical models. Although pseudo−first−order, Elovich and Bangham models presented acceptable correlation coefficient values, those of pseudo−second−order were much better, indicating that MPB adsorption process on calcined LDH did not follow interstitial diffusion. However, adsorption process would also be limited by extra−particle transport according to Boyd model. As for adsorption isotherm modeling, correlation coefficients comparison added to separation factor <span><math><msub><mi>R</mi><mi>L</mi></msub></math></span> (between 0 and 1) and adsorption intensity <span><math><mi>n</mi></math></span> (greater than 1) calculated values, it can be retain that Langmuir and Freundlich models indicated favorable adsorption. In addition, the maximum adsorption capacity obtained through Langmuir model was 52.63 mg g<sup>−1</sup>. Furthermore, from energy point of view, Temkin model would also be suitable to describe MPB adsorption phenomenon on calcined LDH. The latter indicates that adsorption process was exothermic.</div></div>","PeriodicalId":269,"journal":{"name":"Chemical Data Collections","volume":"57 ","pages":"Article 101187"},"PeriodicalIF":2.2180,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Methylparaben adsorption on calcined layered double hydroxides: Kinetics and isotherm modeling\",\"authors\":\"N'guadi Blaise Allou , Patrick Athéba , Jitu Saikia , Kidjoufol Abdoul-Aziz Soro , Aimé Serge Ello\",\"doi\":\"10.1016/j.cdc.2025.101187\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This work aimed to study and model methylparaben (MPB) adsorption on calcined Mg/Al layered double hydroxides (LDH). After the precursor LDH synthesis followed by their calcination completed, adsorption tests were carried out by studying contact time, initial MPB concentration and temperature effects. Data collected from these tests were used to model MPB adsorption mechanism, both in terms of kinetics and isotherm, using several mathematical models. Although pseudo−first−order, Elovich and Bangham models presented acceptable correlation coefficient values, those of pseudo−second−order were much better, indicating that MPB adsorption process on calcined LDH did not follow interstitial diffusion. However, adsorption process would also be limited by extra−particle transport according to Boyd model. As for adsorption isotherm modeling, correlation coefficients comparison added to separation factor <span><math><msub><mi>R</mi><mi>L</mi></msub></math></span> (between 0 and 1) and adsorption intensity <span><math><mi>n</mi></math></span> (greater than 1) calculated values, it can be retain that Langmuir and Freundlich models indicated favorable adsorption. In addition, the maximum adsorption capacity obtained through Langmuir model was 52.63 mg g<sup>−1</sup>. Furthermore, from energy point of view, Temkin model would also be suitable to describe MPB adsorption phenomenon on calcined LDH. The latter indicates that adsorption process was exothermic.</div></div>\",\"PeriodicalId\":269,\"journal\":{\"name\":\"Chemical Data Collections\",\"volume\":\"57 \",\"pages\":\"Article 101187\"},\"PeriodicalIF\":2.2180,\"publicationDate\":\"2025-03-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chemical Data Collections\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2405830025000096\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Chemistry\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Data Collections","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2405830025000096","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Chemistry","Score":null,"Total":0}

引用次数: 0

摘要

本研究旨在研究和模拟对羟基苯甲酸甲酯（MPB）在煅烧Mg/Al层状双氢氧化物（LDH）上的吸附。前驱体LDH合成并煅烧完成后，通过研究接触时间、初始MPB浓度和温度的影响，进行吸附试验。从这些测试中收集的数据用于模拟MPB的吸附机理，包括动力学和等温线，使用几个数学模型。虽然拟一阶、Elovich和Bangham模型的相关系数值可以接受，但拟二阶模型的相关系数值要好得多，表明MPB在焙烧LDH上的吸附过程不遵循间隙扩散。然而，根据Boyd模型，吸附过程也会受到额外粒子输运的限制。对于吸附等温线建模，将分离因子RL（0 ~ 1之间）和吸附强度n（大于1）计算值加入相关系数比较，可以保留Langmuir和Freundlich模型表明吸附有利。Langmuir模型得到的最大吸附量为52.63 mg g−1。此外，从能量的角度来看，Temkin模型也适用于描述MPB在煅烧LDH上的吸附现象。后者表明吸附过程是放热的。

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

Methylparaben adsorption on calcined layered double hydroxides: Kinetics and isotherm modeling

This work aimed to study and model methylparaben (MPB) adsorption on calcined Mg/Al layered double hydroxides (LDH). After the precursor LDH synthesis followed by their calcination completed, adsorption tests were carried out by studying contact time, initial MPB concentration and temperature effects. Data collected from these tests were used to model MPB adsorption mechanism, both in terms of kinetics and isotherm, using several mathematical models. Although pseudo−first−order, Elovich and Bangham models presented acceptable correlation coefficient values, those of pseudo−second−order were much better, indicating that MPB adsorption process on calcined LDH did not follow interstitial diffusion. However, adsorption process would also be limited by extra−particle transport according to Boyd model. As for adsorption isotherm modeling, correlation coefficients comparison added to separation factor

R_{L}

(between 0 and 1) and adsorption intensity

n

(greater than 1) calculated values, it can be retain that Langmuir and Freundlich models indicated favorable adsorption. In addition, the maximum adsorption capacity obtained through Langmuir model was 52.63 mg g⁻¹. Furthermore, from energy point of view, Temkin model would also be suitable to describe MPB adsorption phenomenon on calcined LDH. The latter indicates that adsorption process was exothermic.

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

Chemical Data Collections Chemistry-Chemistry (all)

CiteScore

6.10

自引率

0.00%

发文量

169

审稿时长

24 days

期刊介绍： Chemical Data Collections (CDC) provides a publication outlet for the increasing need to make research material and data easy to share and re-use. Publication of research data with CDC will allow scientists to: -Make their data easy to find and access -Benefit from the fast publication process -Contribute to proper data citation and attribution -Publish their intermediate and null/negative results -Receive recognition for the work that does not fit traditional article format. The research data will be published as ''data articles'' that support fast and easy submission and quick peer-review processes. Data articles introduced by CDC are short self-contained publications about research materials and data. They must provide the scientific context of the described work and contain the following elements: a title, list of authors (plus affiliations), abstract, keywords, graphical abstract, metadata table, main text and at least three references. The journal welcomes submissions focusing on (but not limited to) the following categories of research output: spectral data, syntheses, crystallographic data, computational simulations, molecular dynamics and models, physicochemical data, etc.