Adsorption最新文献_第8页

Dopamine-modified silk fibroin powder for adsorption of heavy metal ions in water 用于吸附水中重金属离子的多巴胺改性蚕丝纤维素粉末

IF 2.318 4区工程技术

Adsorption Pub Date : 2024-07-09 DOI: 10.1007/s10450-024-00510-6

Xiaoyu Han, Yunli Wang, Weilin Xu

引用次数: 0

A coordination polymer of Na-Fe(III) with EDTA: synthesis, characterization, electrical conductivity, adsorption properties and Hirshfeld surface analysis 含乙二胺四乙酸的 Na-Fe(III)配位聚合物：合成、表征、导电性、吸附特性和 Hirshfeld 表面分析

IF 2.318 4区工程技术

Adsorption Pub Date : 2024-07-04 DOI: 10.1007/s10450-024-00504-4

Abdullaev Ahrorjon Khabibjonovich, Yakubov Yuldosh Yusupboyevich, Adizov Bobirjon Zamirovich, Ruzmetov Abror Khamidjanovich, Normamatov Adkhamjon Sadullayevich, Ibragimov Aziz Bakhtiyarovich, Muhammad Nadeem Akhtar, Murad A. AlDamen, Junkuo Gao

{"title":"A coordination polymer of Na-Fe(III) with EDTA: synthesis, characterization, electrical conductivity, adsorption properties and Hirshfeld surface analysis","authors":"Abdullaev Ahrorjon Khabibjonovich, Yakubov Yuldosh Yusupboyevich, Adizov Bobirjon Zamirovich, Ruzmetov Abror Khamidjanovich, Normamatov Adkhamjon Sadullayevich, Ibragimov Aziz Bakhtiyarovich, Muhammad Nadeem Akhtar, Murad A. AlDamen, Junkuo Gao","doi":"10.1007/s10450-024-00504-4","DOIUrl":"https://doi.org/10.1007/s10450-024-00504-4","url":null,"abstract":"In this work, we report Na-Fe(III) coordination polymer, Na[Fe(C10H12N2O8)(H2O)]·2H2O (1), derived from Ethylenediaminetetraacetic acid (EDTA) and the compound exhibits distorted octahedral coordination geometry. The polymeric structure is generated when octahedral sodium is connected with five oxygens comes from five EDTA molecules and one water molecule. The specific surface area (SBET) of the compound was measured by Brunauer-Emmett-Teller (BET) which is 1036.9653 m²/g that value is consider as impressive. Further, thermal stability, sorption properties of nitrogen, water and benzene were also examined. In addition, electrical conductivity, the amount of ions and Hirshfeld surface analysis were also studied. The N2 adsorption isotherm displays two distinct stages at low relative pressures (P/P0 = 0-0.02), indicating the presence of two distinct types of nanopores within the material structure. In case of adsorption of water molecules, the adsorption capacity, reaching nearly 29 mol/kg, and achieves saturation at water vapor pressure while the benzene primarily adsorbs onto the outer surface of the sorbent material at 1.38 mol/kg but its adsorption capacity is lower in comparsion to water. This observation indicates that delineating the adsorption texture of the adsorbent material. The cleavage of certain bonds between the polymerized metal and the ligand in the coordination compound is confirmed through electrical conductivity and the amount of ions. The Hirshfeld surface analysis provided information about various types of surfaces interactions in this compound.","PeriodicalId":458,"journal":{"name":"Adsorption","volume":"39 1","pages":""},"PeriodicalIF":2.318,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141546803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Understanding the mechanism of monolayer adsorption from isotherm 从等温线了解单层吸附机理

IF 2.318 4区工程技术

Adsorption Pub Date : 2024-07-03 DOI: 10.1007/s10450-024-00512-4

Elena Butyrskaya

{"title":"Understanding the mechanism of monolayer adsorption from isotherm","authors":"Elena Butyrskaya","doi":"10.1007/s10450-024-00512-4","DOIUrl":"https://doi.org/10.1007/s10450-024-00512-4","url":null,"abstract":"A new approach for understanding the mechanism of monolayer adsorption is proposed. The Langmuir model, which does not take into account sorbate-sorbate bonds, is the most common one for interpreting monolayer adsorption.When using it, the assumption about the absence of sorbate-sorbate interactions between the sorbate molecules of the first layer is never checked. However, the sorbate-sorbate interactions can make an important contribution to the adsorption energy at physical adsorption. In this case, the formation of sorbate clusters in first layer is an energetically preferable process compared to the process of individual molecules adsorption. The monolayer cluster adsorption model, which takes into account sorbate-sorbate interactions, was introduced in our previous works. In present work, based on the experimental isotherms analysis, a criterion for the mechanism of monolayer adsorption (cluster or adsorption of individual molecules) is proposed. Examples are given of the this criterion application to the study of the mechanism of carbon dioxide adsorption by IRMOF-6, IRMOF-11 and IRMOF-1, ethane by highly activated carbon Saran and methane by mica. This work develops a new approach to the interpretation of monolayer adsorption mechanism.","PeriodicalId":458,"journal":{"name":"Adsorption","volume":"39 1","pages":""},"PeriodicalIF":2.318,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141546804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Adsorption and desorption of hydroxychloroquine onto sulphur doped graphene powders as a potential drug for COVID-19: physicochemical investigation, surface chemistry and in vitro cytotoxicity evaluation 作为 COVID-19 潜在药物的羟氯喹在掺硫石墨烯粉末上的吸附和解吸：理化研究、表面化学和体外细胞毒性评估

IF 2.318 4区工程技术

Adsorption Pub Date : 2024-07-03 DOI: 10.1007/s10450-024-00506-2

Tayfun Acar, Melih Besir Arvas, Busra Arvas, Burcu Ucar, Yucel Sahin

{"title":"Adsorption and desorption of hydroxychloroquine onto sulphur doped graphene powders as a potential drug for COVID-19: physicochemical investigation, surface chemistry and in vitro cytotoxicity evaluation","authors":"Tayfun Acar, Melih Besir Arvas, Busra Arvas, Burcu Ucar, Yucel Sahin","doi":"10.1007/s10450-024-00506-2","DOIUrl":"https://doi.org/10.1007/s10450-024-00506-2","url":null,"abstract":"Hydroxychloroquine (HCQ) is a very substantial drug active substance that was approved for emergency use by the FDA during the peak of the COVID-19 pandemic due to its potent antiviral properties. In this study, adsorption and desorption of hydroxychloroquine on sulfur (S)-doped graphene powders were investigated. While the adsorption experiments were carried out in the environment of distilled water (pH 5.0-6.0), HEPES buffer (pH 7.6), and Tris.HCl buffer (pH 8.0) the desorption studies were performed in distilled water. The HCQ adsorbed S-doped graphene powders were characterized by UV-Vis, FT-IR, XRD, BET and TEM techniques. According to UV-Vis measurements, the adsorption efficiency in the HEPES buffer medium at pH 7.6 was the highest (68.72% for H3 (HCQ adsorption with SGr3 graphene in HEPES medium)). FT-IR and XRD analyses confirmed the presence of HCQ on the graphene powders’ surface. While morphological changes on the surfaces of graphene powders were imaged by TEM, BET surface area changes proved the HCQ adsorption. The in vitro toxicity of the developed H3 was found to be lower than that of HCQ alone on the L929 cell line. These fundamental findings of the surface interaction between HCQ and graphene are precious for the design and optimization of a targeted drug based on this molecule and material. The adsorption/desorption features of HCQ onto graphene-based carrier systems which in particular doped with sulfur from functional metals have been investigated for the first time.","PeriodicalId":458,"journal":{"name":"Adsorption","volume":"76 1","pages":""},"PeriodicalIF":2.318,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141546886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance of polyaniline doping induced active surface area of Moringa olifera for heavy metal removal from wastewater 聚苯胺掺杂诱导的辣木活性表面积在去除废水中重金属方面的性能

IF 2.318 4区工程技术

Adsorption Pub Date : 2024-07-03 DOI: 10.1007/s10450-024-00507-1

Ayansa Fekadu Ge Medhin, Israel Leka Lera

{"title":"Performance of polyaniline doping induced active surface area of Moringa olifera for heavy metal removal from wastewater","authors":"Ayansa Fekadu Ge Medhin, Israel Leka Lera","doi":"10.1007/s10450-024-00507-1","DOIUrl":"https://doi.org/10.1007/s10450-024-00507-1","url":null,"abstract":"Analysis of physicochemical properties and treatment of water via modified natural adsorbent material is vital to the ecosystem. The purpose of this study is to analyze physicochemical parameters and synthesize polyaniline (PANI)/moringa oliefera (MO) nano-composite adsorbent material via in situ polymerization techniques. Physicochemical parameters of the sample show, a strong and moderate correlation between all parameters while a weak correlation of turbidity. The synthesized materials were also characterized using powder XRD, FT-IR, UV-VIS spectroscopy, SEM, and conductometer. The physical characterization shows the amorphous nature of MO and the crystallinity of polyaniline and composite material. The existence of skeletal interaction, electronic transition, and porous and granular morphology was confirmed using FT-IR, UV-VIS spectroscopy, and SEM, respectively. After physical characterization, the adsorption performance of as-synthesized material was tested using the batch method. The maximum adsorption capacity (qmax) of Cu2+ and Pb2+ ions by PANI/MO was 10.01 mg/g and 23.01 mg/g, respectively. When all parameters were optimized (pH at 5, contact time at 30 min, temperature at 250C, and 2 grams of PANI/MO) adsorption efficiency for Pb2+ is 99%, and Cu2+ ions is 97.77%. The Freundlich isotherm data for Cu2+ and Pb2+ have a good fit with the experimental data (R2 = 0.99 and 0.98), and Langmuir isotherm data for Cu2+ and Pb2+ is RL=0.18 & 0.19, respectively. The pseudo-second-order kinetic isothermal was more fit with physisorption at R2 = 0.99 for Cu2+ and R2 = 1 for Pb2+. Therefore, the novel PANI/MO composite remarkably outperformed MO and can be a promising candidate to adsorb Cu2+ and Pb2+ from wastewater.","PeriodicalId":458,"journal":{"name":"Adsorption","volume":"109 1","pages":""},"PeriodicalIF":2.318,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141546802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Catalytic Nanomedicine: Coated bionanocatalysts for Catalytic Antineoplastic activity 催化纳米医学：具有催化抗肿瘤活性的涂层仿生催化剂

IF 2.318 4区工程技术

Adsorption Pub Date : 2024-06-16 DOI: 10.1007/s10450-024-00497-0

Tessy López-Goerne, Emma Ortiz-Islas, Francisco Rodríguez-Reinoso, Hugo Monroy, Esteban Gómez-López, Francisco J. Padilla-Godínez

{"title":"Catalytic Nanomedicine: Coated bionanocatalysts for Catalytic Antineoplastic activity","authors":"Tessy López-Goerne, Emma Ortiz-Islas, Francisco Rodríguez-Reinoso, Hugo Monroy, Esteban Gómez-López, Francisco J. Padilla-Godínez","doi":"10.1007/s10450-024-00497-0","DOIUrl":"https://doi.org/10.1007/s10450-024-00497-0","url":null,"abstract":"Glioma tumors are the most common form of central nervous system tumors, and there is a pressing need for innovative methods that can precisely target cancer cells while leaving healthy tissues unharmed. In this study, progressing in the field of Catalytic Nanomedicine, we investigated the cytotoxic effects of a novel class of bionanocatalysts on glioma cancer cells. These bionanocatalysts were constructed from a catalytic matrix of oxides with evenly dispersed superficial copper-coating nanoparticles. This design optimizes both the inherent catalytic characteristics of the matrix and instills cytotoxic properties. The bionanocatalysts coated with copper demonstrated a significant reduction in cancer cell viability when compared to reference bionanocatalysts without the transition metal. We also observed structural damage to the cytoskeleton and alterations in mitochondrial activity. These findings suggest that these pathways are integral to the mechanisms through which these nanostructures execute their bionanocatalytic activities, particularly in breaking chemical bonds. Importantly, our physicochemical analyses verified that the coating with copper species, primarily CuO, did not disrupt the individual structure of the bionanocatalysts: instead, it enhanced their catalytic cytotoxic potential. This research aims to deepen our understanding of the mechanisms underlying this promising antineoplastic treatment and underscore the effectiveness of superficial copper-coating nanoparticles as agents for amplifying the inherent properties of bionanocatalysts through nanocatalysis.","PeriodicalId":458,"journal":{"name":"Adsorption","volume":"32 1","pages":""},"PeriodicalIF":2.318,"publicationDate":"2024-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141529584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comprehensive Analytical Sorption Thermodynamic (CAST) model for water vapor sorption in cellulosic materials 纤维素材料中水蒸气吸附的综合分析吸附热力学（CAST）模型

IF 3 4区工程技术

Adsorption Pub Date : 2024-06-09 DOI: 10.1007/s10450-024-00495-2

Mark A. Dietenberger, Samuel V. Glass, Charles R. Boardman

{"title":"Comprehensive Analytical Sorption Thermodynamic (CAST) model for water vapor sorption in cellulosic materials","authors":"Mark A. Dietenberger, Samuel V. Glass, Charles R. Boardman","doi":"10.1007/s10450-024-00495-2","DOIUrl":"10.1007/s10450-024-00495-2","url":null,"abstract":"<div>Water vapor sorption is a fundamental property of cellulosic materials. Numerous theoretical and empirical models have been developed to describe the relationship between water activity, temperature, and equilibrium moisture content (EMC). However, a meaningful connection between model parameters and thermodynamic properties related to the sorption process is often lacking. In cases where models yield thermodynamic properties, such as through use of the Clausius-Clapeyron equation, these are limited to temperatures where the ideal gas equation is applicable. In this paper we advance a thermodynamic framework and formulate a new semi-empirical sorption model based on the differential Gibbs energy of sorption as a function of EMC and temperature, intended for high temperature applications such as steam drying or fire modeling. We refer to this as the Comprehensive Analytical Sorption Thermodynamic (CAST) model. It has six parameters, includes temperature explicitly, and is invertible. The CAST model includes analytical equations for the differential enthalpy of sorption, the differential entropy of sorption, and the integral heat of wetting. The model is evaluated using sorption data and calorimetric data over a range of temperatures from the wood science literature and compared with several existing models. Overall, the CAST model fits the experimental sorption and calorimetric data with higher accuracy than existing models.</div>","PeriodicalId":458,"journal":{"name":"Adsorption","volume":"30 6","pages":"1251 - 1271"},"PeriodicalIF":3.0,"publicationDate":"2024-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141367987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Selective adsorption of ethane and methane on zeolite-like imidazolate frameworks ZIF-8 and ZIF-67: effect of lattice coordination centers 乙烷和甲烷在沸石状咪唑酸框架 ZIF-8 和 ZIF-67 上的选择性吸附：晶格配位中心的影响

IF 3 4区工程技术

Adsorption Pub Date : 2024-06-09 DOI: 10.1007/s10450-024-00505-3

G. S. Deyko, V. I. Isaeva, L. M. Glukhov, V. V. Chernyshev, D. A. Arkhipov, G. I. Kapustin, L. A. Kravtsov, L. M. Kustov

{"title":"Selective adsorption of ethane and methane on zeolite-like imidazolate frameworks ZIF-8 and ZIF-67: effect of lattice coordination centers","authors":"G. S. Deyko, V. I. Isaeva, L. M. Glukhov, V. V. Chernyshev, D. A. Arkhipov, G. I. Kapustin, L. A. Kravtsov, L. M. Kustov","doi":"10.1007/s10450-024-00505-3","DOIUrl":"10.1007/s10450-024-00505-3","url":null,"abstract":"<div>Zeolitic imidazolate frameworks based on 2-methylimidazolate linkers with different particle size (200–1000 nm) and controlled content of Zn2+ and Co2+ ions have been synthesized by microwave (MW) assisted technique according to original procedures and room-temperature method. The produced materials including monometallic ZIF-8 and ZIF-67 samples, bimetallic ZIF-Zn/Co (or ZIF-8/ZIF-67) system, and “core-shell” ZIF-8@ZIF-67 and ZIF-67@ZIF-8 composites have been studied in the practically relevant process of selective adsorption of ethane and methane (25 °C). The adsorption isotherms for both gases on the obtained ZIF materials were measured in a wide pressure range (1–20 atm) for the first time. For ZIF-67, the isosteric heats of adsorption for both gases were obtained also for the first time. It was found that the nature of the coordination centers in the ZIF frameworks influences their adsorption characteristics. Thus, the obtained materials with Co2+ ions show an increased adsorption capacity towards ethane, which exceEDX the capacity measured for the Zn2+-based samples, while the highest methane adsorption value is achieved on a “core-shell” ZIF-67@ZIF-8 composite.</div>","PeriodicalId":458,"journal":{"name":"Adsorption","volume":"30 6","pages":"1239 - 1249"},"PeriodicalIF":3.0,"publicationDate":"2024-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141366459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Adsorption performance of silver ion on acrylic grafted carboxymethyl chitosan/dialdehyde starch 银离子在丙烯酸接枝羧甲基壳聚糖/二甲醛淀粉上的吸附性能

IF 3 4区工程技术

Adsorption Pub Date : 2024-06-09 DOI: 10.1007/s10450-024-00501-7

Jinyu Ouyang, Luqi Zhan, Qincong Luo, Jincheng Miao, Langrong Hu, Xiangqi He, Xiaojuan Wang

引用次数: 0

Adsorption of procyanidins B1 and B2 onto β-Glucan: adsorption isotherms and thermodynamics 原花青素 B1 和 B2 在 β-葡聚糖上的吸附：吸附等温线和热力学

IF 3 4区工程技术

Adsorption Pub Date : 2024-06-09 DOI: 10.1007/s10450-024-00503-5

Petra Matić, Šime Ukić, Lidija Jakobek

{"title":"Adsorption of procyanidins B1 and B2 onto β-Glucan: adsorption isotherms and thermodynamics","authors":"Petra Matić, Šime Ukić, Lidija Jakobek","doi":"10.1007/s10450-024-00503-5","DOIUrl":"10.1007/s10450-024-00503-5","url":null,"abstract":"<div>The interactions between phenolic compounds and dietary fibers have generally received considerable attention because these interactions have a variety of applications, for example, in the production of functional foods, in the pharmaceutical industry, or in the production of films used as packaging materials for food. The aim of this study was to investigate the interactions between two flavan-3-ols: procyanidin B1 and procyanidin B2, and dietary fiber β-glucan. The adsorption process was studied at different temperatures (25, 37 and 45 °C) and different pH values (1.5, 5.5 and 10.0). The adsorption capacity of β-glucan for procyanidins (qe) ranged from 44-489 mg g-1, depending on temperature and pH, and was generally higher for procyanidin B2. At the temperatures tested, the lowest qe values for both procyanidins were obtained at 37 °C, while at the pH values used, the lowest qe values were obtained at pH 5.5. The experimental data were fitted by Langmuir, Freundlich, Dubinin-Radushkevich, Temkin, and Hill isotherms. Analysis of the fit of the applied isotherms led to the conclusion that the adsorption process studied was physical in nature in the range of applied temperatures and pH values. The process was spontaneous and exothermic for both procyanidins.</div>","PeriodicalId":458,"journal":{"name":"Adsorption","volume":"30 6","pages":"1303 - 1313"},"PeriodicalIF":3.0,"publicationDate":"2024-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141366873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0