以椰枣籽提取的活性炭作为亚甲基蓝的吸附剂:动力学和热力学研究

IF 1.7 4区 化学 Q4 CHEMISTRY, PHYSICAL
Rabie Fath Allah, Hanae Ouaddari, Jesús Hernández-Saz, Imad El Fellah, Asmaa Fakih Lanjri, Daniel Goma Jiménez, Jaouad Bensalah, Mohamed Ouzzine
{"title":"以椰枣籽提取的活性炭作为亚甲基蓝的吸附剂:动力学和热力学研究","authors":"Rabie Fath Allah, Hanae Ouaddari, Jesús Hernández-Saz, Imad El Fellah, Asmaa Fakih Lanjri, Daniel Goma Jiménez, Jaouad Bensalah, Mohamed Ouzzine","doi":"10.1007/s11144-024-02710-1","DOIUrl":null,"url":null,"abstract":"<p>The present work shed light on the investigation of the textural and compositional properties of Activated Carbons derived from palm Date Seeds (DSAC). Initially, DS were pyrolyzed and chemically activated using H<sub>3</sub>PO<sub>4</sub> activating agent at different ratio/temperatures. In that sense, various techniques were performed, particularly, Fourier-transform infrared (FTIR) spectroscopy, thermogravimetry–differential thermal analysis (TGA/DTG), Brunauer–Emmett–Teller (BET) surface area analysis and energy dispersive spectroscopy (EDS) coupled to scanning electron microscopy (SEM). Our outcomes showed that the activation with H<sub>3</sub>PO<sub>4</sub> at lower and higher ratio produced activated carbons with higher pore volume (0.507 and 0.680 cm<sup>3</sup>/g), narrower average pore diameter (1.10 and 1.49 nm) and higher surface areas (917.082 and 828.60 m<sup>2</sup>/g). DSAC were used for the adsorption of methylene blue (MB) dye from an aqueous solution. The adsorption efficiency of the studied samples was investigated varying the amount of activated carbon, contact time, temperature and initial dye concentration. Acid-activated samples showed improved adsorption capacity for MB compared to pyrolyzed ones: up to 302 mg/g. This was mainly attributed to a more adequate texture as confirmed by the presence of a pronounced porosity in the SEM analyses. The adsorption equilibria were analyzed; the Langmuir isotherm revealed the best correlation with the experimental data, and the pseudo-second-order kinetic model was the most suitable for the adsorption of MB dye. The thermodynamic parameters revealed the spontaneity and endothermicity nature of the MB adsorption process. According to the obtained results our synthesized added-value product can be used to remove dyes contained in industrial effluent.</p>","PeriodicalId":750,"journal":{"name":"Reaction Kinetics, Mechanisms and Catalysis","volume":null,"pages":null},"PeriodicalIF":1.7000,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Activated carbon derived from palm date seeds as an adsorbent for methylene blue: kinetic and thermodynamic studies\",\"authors\":\"Rabie Fath Allah, Hanae Ouaddari, Jesús Hernández-Saz, Imad El Fellah, Asmaa Fakih Lanjri, Daniel Goma Jiménez, Jaouad Bensalah, Mohamed Ouzzine\",\"doi\":\"10.1007/s11144-024-02710-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The present work shed light on the investigation of the textural and compositional properties of Activated Carbons derived from palm Date Seeds (DSAC). Initially, DS were pyrolyzed and chemically activated using H<sub>3</sub>PO<sub>4</sub> activating agent at different ratio/temperatures. In that sense, various techniques were performed, particularly, Fourier-transform infrared (FTIR) spectroscopy, thermogravimetry–differential thermal analysis (TGA/DTG), Brunauer–Emmett–Teller (BET) surface area analysis and energy dispersive spectroscopy (EDS) coupled to scanning electron microscopy (SEM). Our outcomes showed that the activation with H<sub>3</sub>PO<sub>4</sub> at lower and higher ratio produced activated carbons with higher pore volume (0.507 and 0.680 cm<sup>3</sup>/g), narrower average pore diameter (1.10 and 1.49 nm) and higher surface areas (917.082 and 828.60 m<sup>2</sup>/g). DSAC were used for the adsorption of methylene blue (MB) dye from an aqueous solution. The adsorption efficiency of the studied samples was investigated varying the amount of activated carbon, contact time, temperature and initial dye concentration. Acid-activated samples showed improved adsorption capacity for MB compared to pyrolyzed ones: up to 302 mg/g. This was mainly attributed to a more adequate texture as confirmed by the presence of a pronounced porosity in the SEM analyses. The adsorption equilibria were analyzed; the Langmuir isotherm revealed the best correlation with the experimental data, and the pseudo-second-order kinetic model was the most suitable for the adsorption of MB dye. The thermodynamic parameters revealed the spontaneity and endothermicity nature of the MB adsorption process. According to the obtained results our synthesized added-value product can be used to remove dyes contained in industrial effluent.</p>\",\"PeriodicalId\":750,\"journal\":{\"name\":\"Reaction Kinetics, Mechanisms and Catalysis\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2024-08-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Reaction Kinetics, Mechanisms and Catalysis\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1007/s11144-024-02710-1\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Reaction Kinetics, Mechanisms and Catalysis","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1007/s11144-024-02710-1","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0

摘要

本研究揭示了从棕榈枣籽中提取的活性碳(DSAC)的质地和组成特性。首先,使用 H3PO4 活性剂在不同比例/温度下对椰枣种子进行热解和化学活化。为此,我们采用了多种技术,特别是傅立叶变换红外光谱(FTIR)、热重-差热分析(TGA/DTG)、布鲁诺-艾美特-泰勒(BET)表面积分析和能量色散光谱(EDS)以及扫描电子显微镜(SEM)。结果表明,用较低和较高比率的 H3PO4 活化产生的活性炭具有较高的孔体积(0.507 和 0.680 cm3/g)、较窄的平均孔直径(1.10 和 1.49 nm)和较高的表面积(917.082 和 828.60 m2/g)。DSAC 用于吸附水溶液中的亚甲基蓝(MB)染料。通过改变活性炭用量、接触时间、温度和初始染料浓度,研究了所研究样品的吸附效率。与热解样品相比,酸活化样品对甲基溴的吸附能力有所提高:最高可达 302 毫克/克。这主要归因于质地更均匀,在扫描电镜分析中,明显的孔隙率证实了这一点。对吸附平衡进行了分析;朗缪尔等温线与实验数据的相关性最好,伪二阶动力学模型最适合甲基溴染料的吸附。热力学参数揭示了甲基溴吸附过程的自发性和内热性。根据所得结果,我们合成的增值产品可用于去除工业废水中的染料。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Activated carbon derived from palm date seeds as an adsorbent for methylene blue: kinetic and thermodynamic studies

Activated carbon derived from palm date seeds as an adsorbent for methylene blue: kinetic and thermodynamic studies

The present work shed light on the investigation of the textural and compositional properties of Activated Carbons derived from palm Date Seeds (DSAC). Initially, DS were pyrolyzed and chemically activated using H3PO4 activating agent at different ratio/temperatures. In that sense, various techniques were performed, particularly, Fourier-transform infrared (FTIR) spectroscopy, thermogravimetry–differential thermal analysis (TGA/DTG), Brunauer–Emmett–Teller (BET) surface area analysis and energy dispersive spectroscopy (EDS) coupled to scanning electron microscopy (SEM). Our outcomes showed that the activation with H3PO4 at lower and higher ratio produced activated carbons with higher pore volume (0.507 and 0.680 cm3/g), narrower average pore diameter (1.10 and 1.49 nm) and higher surface areas (917.082 and 828.60 m2/g). DSAC were used for the adsorption of methylene blue (MB) dye from an aqueous solution. The adsorption efficiency of the studied samples was investigated varying the amount of activated carbon, contact time, temperature and initial dye concentration. Acid-activated samples showed improved adsorption capacity for MB compared to pyrolyzed ones: up to 302 mg/g. This was mainly attributed to a more adequate texture as confirmed by the presence of a pronounced porosity in the SEM analyses. The adsorption equilibria were analyzed; the Langmuir isotherm revealed the best correlation with the experimental data, and the pseudo-second-order kinetic model was the most suitable for the adsorption of MB dye. The thermodynamic parameters revealed the spontaneity and endothermicity nature of the MB adsorption process. According to the obtained results our synthesized added-value product can be used to remove dyes contained in industrial effluent.

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
CiteScore
3.30
自引率
5.60%
发文量
201
审稿时长
2.8 months
期刊介绍: Reaction Kinetics, Mechanisms and Catalysis is a medium for original contributions in the following fields: -kinetics of homogeneous reactions in gas, liquid and solid phase; -Homogeneous catalysis; -Heterogeneous catalysis; -Adsorption in heterogeneous catalysis; -Transport processes related to reaction kinetics and catalysis; -Preparation and study of catalysts; -Reactors and apparatus. Reaction Kinetics, Mechanisms and Catalysis was formerly published under the title Reaction Kinetics and Catalysis Letters.
×
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