Ahmed Saud Abdulhameed, Rima Heider Al Omari, Sultan Althahban, Yosef Jazaa, Mahmoud Abualhaija, Sameer Algburi
{"title":"离子交联壳聚糖-草酸盐/Al2O3纳米复合材料高效去除伊红y染料：吸附等温线、动力学、热力学和BBD-RSM工艺优化","authors":"Ahmed Saud Abdulhameed, Rima Heider Al Omari, Sultan Althahban, Yosef Jazaa, Mahmoud Abualhaija, Sameer Algburi","doi":"10.1007/s13233-025-00403-9","DOIUrl":null,"url":null,"abstract":"<div><p>Herein, an ionically cross-linked chitosan-oxalate/Al<sub>2</sub>O<sub>3</sub> (CHS-OXA/Al<sub>2</sub>O<sub>3</sub>) mesoporous nanocomposite was prepared by modifying the natural macromolecular biopolymer (chitosan, CHS) with a metal oxide nanomaterial (aluminum oxide, Al<sub>2</sub>O<sub>3</sub> nanoparticles) and then using an ionic cross-linking method with oxalate (OXA). The physicochemical properties of CHS-OXA/Al<sub>2</sub>O<sub>3</sub> have been comprehensively analyzed using methods like FTIR, XRD, BET, pH<sub>pzc</sub>, and FESEM-EDX. Box–Behnken design (BBD) was adopted to analyze the efficacy of CHS-OXA/Al<sub>2</sub>O<sub>3</sub> in eliminating eosin y (EOY) dye from an aqueous solution. The study included many aspects that influence the adsorption process, including the quantity of CHS-OXA/Al<sub>2</sub>O<sub>3</sub> (ranging from 0.01 to 0.07 g), the duration of the process (10–40 min), and the pH level (ranging from 4 to 10). The highest EOY decolorization (98.4%) was attained at a pH of 4, a dosage of 0.053 g CHS-OXA/Al<sub>2</sub>O<sub>3</sub>, and a removal time of 39.6 min. The equilibrium behavior of EOY on CHS-OXA/Al<sub>2</sub>O<sub>3</sub> matched well with the Freundlich isotherm. The kinetics data of EOY adsorption by CHS-OXA/Al<sub>2</sub>O<sub>3</sub> were well characterized using a pseudo-first-order model. The computed enthalpy ΔH° was endothermic (13.04 kJ/mol), the entropy ΔS° was positive (0.066 kJ/molK), and Gibb's free energy ΔG° was negative (6.83–8.85 kJ/mol) according to the thermodynamic studies, confirming that the adsorption process is spontaneous. The CHS-OXA/Al<sub>2</sub>O<sub>3</sub> material possesses an adsorption ability of 378.6 mg/g. This work showcases the outstanding capacity of CHS-OXA/Al<sub>2</sub>O<sub>3</sub> as a very effective adsorbent for eliminating synthetic dyes from wastewater.</p><h3>Graphical abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div><div><p>A chitosan-based nanocomposite of ionically crosslinked chitosan-oxalate/Al<sub>2</sub>O<sub>3</sub> nanoparticles was synthesized. The chitosan-based nanocomposite exhibited high efficiency in removing eosin Y dye from water. Adsorption mechanisms included electrostatic attraction, hydrogen bonding, and n-π interactions</p></div></div></figure></div></div>","PeriodicalId":688,"journal":{"name":"Macromolecular Research","volume":"33 8","pages":"1069 - 1084"},"PeriodicalIF":3.4000,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Ionically cross-linked chitosan-oxalate/Al2O3 nanocomposite for highly efficient removal of eosin y dye: adsorption isotherm, kinetic, thermodynamic, and process optimization using BBD-RSM\",\"authors\":\"Ahmed Saud Abdulhameed, Rima Heider Al Omari, Sultan Althahban, Yosef Jazaa, Mahmoud Abualhaija, Sameer Algburi\",\"doi\":\"10.1007/s13233-025-00403-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Herein, an ionically cross-linked chitosan-oxalate/Al<sub>2</sub>O<sub>3</sub> (CHS-OXA/Al<sub>2</sub>O<sub>3</sub>) mesoporous nanocomposite was prepared by modifying the natural macromolecular biopolymer (chitosan, CHS) with a metal oxide nanomaterial (aluminum oxide, Al<sub>2</sub>O<sub>3</sub> nanoparticles) and then using an ionic cross-linking method with oxalate (OXA). The physicochemical properties of CHS-OXA/Al<sub>2</sub>O<sub>3</sub> have been comprehensively analyzed using methods like FTIR, XRD, BET, pH<sub>pzc</sub>, and FESEM-EDX. Box–Behnken design (BBD) was adopted to analyze the efficacy of CHS-OXA/Al<sub>2</sub>O<sub>3</sub> in eliminating eosin y (EOY) dye from an aqueous solution. The study included many aspects that influence the adsorption process, including the quantity of CHS-OXA/Al<sub>2</sub>O<sub>3</sub> (ranging from 0.01 to 0.07 g), the duration of the process (10–40 min), and the pH level (ranging from 4 to 10). The highest EOY decolorization (98.4%) was attained at a pH of 4, a dosage of 0.053 g CHS-OXA/Al<sub>2</sub>O<sub>3</sub>, and a removal time of 39.6 min. The equilibrium behavior of EOY on CHS-OXA/Al<sub>2</sub>O<sub>3</sub> matched well with the Freundlich isotherm. The kinetics data of EOY adsorption by CHS-OXA/Al<sub>2</sub>O<sub>3</sub> were well characterized using a pseudo-first-order model. The computed enthalpy ΔH° was endothermic (13.04 kJ/mol), the entropy ΔS° was positive (0.066 kJ/molK), and Gibb's free energy ΔG° was negative (6.83–8.85 kJ/mol) according to the thermodynamic studies, confirming that the adsorption process is spontaneous. The CHS-OXA/Al<sub>2</sub>O<sub>3</sub> material possesses an adsorption ability of 378.6 mg/g. This work showcases the outstanding capacity of CHS-OXA/Al<sub>2</sub>O<sub>3</sub> as a very effective adsorbent for eliminating synthetic dyes from wastewater.</p><h3>Graphical abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div><div><p>A chitosan-based nanocomposite of ionically crosslinked chitosan-oxalate/Al<sub>2</sub>O<sub>3</sub> nanoparticles was synthesized. The chitosan-based nanocomposite exhibited high efficiency in removing eosin Y dye from water. Adsorption mechanisms included electrostatic attraction, hydrogen bonding, and n-π interactions</p></div></div></figure></div></div>\",\"PeriodicalId\":688,\"journal\":{\"name\":\"Macromolecular Research\",\"volume\":\"33 8\",\"pages\":\"1069 - 1084\"},\"PeriodicalIF\":3.4000,\"publicationDate\":\"2025-05-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Macromolecular Research\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s13233-025-00403-9\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"POLYMER SCIENCE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Macromolecular Research","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s13233-025-00403-9","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
Ionically cross-linked chitosan-oxalate/Al2O3 nanocomposite for highly efficient removal of eosin y dye: adsorption isotherm, kinetic, thermodynamic, and process optimization using BBD-RSM
Herein, an ionically cross-linked chitosan-oxalate/Al2O3 (CHS-OXA/Al2O3) mesoporous nanocomposite was prepared by modifying the natural macromolecular biopolymer (chitosan, CHS) with a metal oxide nanomaterial (aluminum oxide, Al2O3 nanoparticles) and then using an ionic cross-linking method with oxalate (OXA). The physicochemical properties of CHS-OXA/Al2O3 have been comprehensively analyzed using methods like FTIR, XRD, BET, pHpzc, and FESEM-EDX. Box–Behnken design (BBD) was adopted to analyze the efficacy of CHS-OXA/Al2O3 in eliminating eosin y (EOY) dye from an aqueous solution. The study included many aspects that influence the adsorption process, including the quantity of CHS-OXA/Al2O3 (ranging from 0.01 to 0.07 g), the duration of the process (10–40 min), and the pH level (ranging from 4 to 10). The highest EOY decolorization (98.4%) was attained at a pH of 4, a dosage of 0.053 g CHS-OXA/Al2O3, and a removal time of 39.6 min. The equilibrium behavior of EOY on CHS-OXA/Al2O3 matched well with the Freundlich isotherm. The kinetics data of EOY adsorption by CHS-OXA/Al2O3 were well characterized using a pseudo-first-order model. The computed enthalpy ΔH° was endothermic (13.04 kJ/mol), the entropy ΔS° was positive (0.066 kJ/molK), and Gibb's free energy ΔG° was negative (6.83–8.85 kJ/mol) according to the thermodynamic studies, confirming that the adsorption process is spontaneous. The CHS-OXA/Al2O3 material possesses an adsorption ability of 378.6 mg/g. This work showcases the outstanding capacity of CHS-OXA/Al2O3 as a very effective adsorbent for eliminating synthetic dyes from wastewater.
Graphical abstract
A chitosan-based nanocomposite of ionically crosslinked chitosan-oxalate/Al2O3 nanoparticles was synthesized. The chitosan-based nanocomposite exhibited high efficiency in removing eosin Y dye from water. Adsorption mechanisms included electrostatic attraction, hydrogen bonding, and n-π interactions
期刊介绍：
Original research on all aspects of polymer science, engineering and technology, including nanotechnology
Presents original research articles on all aspects of polymer science, engineering and technology
Coverage extends to such topics as nanotechnology, biotechnology and information technology
The English-language journal of the Polymer Society of Korea
Macromolecular Research is a scientific journal published monthly by the Polymer Society of Korea. Macromolecular Research publishes original researches on all aspects of polymer science, engineering, and technology as well as new emerging technologies using polymeric materials including nanotechnology, biotechnology, and information technology in forms of Articles, Communications, Notes, Reviews, and Feature articles.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
