Enhanced boron recovery by a new synthesized polyvinyl alcohol anchored gallic acid moiety via ethyl carbamate linker

IF 2.3 4区工程技术 Q3 CHEMISTRY, MULTIDISCIPLINARY

Separation Science and Technology Pub Date : 2023-09-02 DOI:10.1080/01496395.2023.2252985

Bahig M. Atia, M. Cheira, M. A. Hassanin, Hassan S. El-Gendy, M. E. Elawady, Hazem K.A. Sarhan, H. Radwan, Sameh H. Negm, M. Gado

{"title":"Enhanced boron recovery by a new synthesized polyvinyl alcohol anchored gallic acid moiety via ethyl carbamate linker","authors":"Bahig M. Atia, M. Cheira, M. A. Hassanin, Hassan S. El-Gendy, M. E. Elawady, Hazem K.A. Sarhan, H. Radwan, Sameh H. Negm, M. Gado","doi":"10.1080/01496395.2023.2252985","DOIUrl":null,"url":null,"abstract":"ABSTRACT An innovative promising Gallic acid anchored poly vinyl alcohol via ethyl carbamate linker (PVA-EC-GA), was functionalized to extract boron from a tourmaline ore sample from Sikait area in South Eastern Desert of Egypt, which assaying 10.45% boron oxide. Specifications for PVA-EC-GA composite were accomplished by employing a variety of methods including XPS, FT-IR, EDX, BET, 1 H-NMR, TGA, 13C-NMR and GC-MS analyses, which assure an equitable prepare of PVA-EC-GA. Investigational measurements, namely: pH, agitation time, initial concentration of boron, composite dose, co-ions, temp. and agents of eluting, have been improved. At 25°C, pH 10, 20 min agitation and 0.0092 mol/L boron ions, PVA-EC-GA composite has an extreme uptake capacity of 43.75 mg per gram which is equivalent to 175 mg/L boron ions. From the isotherm modeling, Langmuir’s quite fitting the practical data. Conferring to kinetic modeling, pseudo-second order kinetic model well predicted the kinetics of boron ions adsorption by PVA-EC-GA giving a theoretical retention capacity of 43.86 mg/g. Thermodynamic prospects expose that the adsorption process was expected as an exothermic, spontaneous, and preferable adsorption at low temp. Boron ions can be eluted from the loaded composite, by 0.5 M H2SO4 with a 97% effectiveness","PeriodicalId":21680,"journal":{"name":"Separation Science and Technology","volume":"30 1","pages":"2307 - 2330"},"PeriodicalIF":2.3000,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Separation Science and Technology","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1080/01496395.2023.2252985","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

ABSTRACT An innovative promising Gallic acid anchored poly vinyl alcohol via ethyl carbamate linker (PVA-EC-GA), was functionalized to extract boron from a tourmaline ore sample from Sikait area in South Eastern Desert of Egypt, which assaying 10.45% boron oxide. Specifications for PVA-EC-GA composite were accomplished by employing a variety of methods including XPS, FT-IR, EDX, BET, 1 H-NMR, TGA, 13C-NMR and GC-MS analyses, which assure an equitable prepare of PVA-EC-GA. Investigational measurements, namely: pH, agitation time, initial concentration of boron, composite dose, co-ions, temp. and agents of eluting, have been improved. At 25°C, pH 10, 20 min agitation and 0.0092 mol/L boron ions, PVA-EC-GA composite has an extreme uptake capacity of 43.75 mg per gram which is equivalent to 175 mg/L boron ions. From the isotherm modeling, Langmuir’s quite fitting the practical data. Conferring to kinetic modeling, pseudo-second order kinetic model well predicted the kinetics of boron ions adsorption by PVA-EC-GA giving a theoretical retention capacity of 43.86 mg/g. Thermodynamic prospects expose that the adsorption process was expected as an exothermic, spontaneous, and preferable adsorption at low temp. Boron ions can be eluted from the loaded composite, by 0.5 M H2SO4 with a 97% effectiveness

查看原文本刊更多论文

新合成的聚乙烯醇通过氨基甲酸乙酯连接剂锚定没食子酸片段，提高硼的回收率

摘要/ ABSTRACT摘要:采用新型没食子酸锚定氨基甲酸乙酯连接剂聚乙烯醇(PVA-EC-GA)从埃及东南部沙漠Sikait地区的电气石矿石样品中提取硼，其氧化硼含量为10.45%。采用XPS、FT-IR、EDX、BET、1h - nmr、TGA、13C-NMR和GC-MS等多种分析方法对PVA-EC-GA复合材料进行了表征，保证了PVA-EC-GA制备的均匀性。研究测量，即:pH、搅拌时间、硼的初始浓度、复合剂量、共离子、温度和洗脱剂，都得到了改进。在25℃、pH 10、搅拌20 min、硼离子浓度为0.0092 mol/L的条件下，PVA-EC-GA复合材料对硼离子的吸收率为43.75 mg/ g，相当于175 mg/L硼离子的吸收率。从等温线模型来看，Langmuir很符合实际数据。通过动力学建模，拟二级动力学模型较好地预测了PVA-EC-GA吸附硼离子的动力学，理论保留容量为43.86 mg/g。热力学前景表明，吸附过程是一种低温下的放热、自发和较好的吸附过程，用0.5 M H2SO4可以从负载的复合材料中洗脱硼离子，效率为97%

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Separation Science and Technology 工程技术-工程：化工

CiteScore

6.10

自引率

3.60%

发文量

131

审稿时长

5.7 months

期刊介绍： This international journal deals with fundamental and applied aspects of separation processes related to a number of fields. A wide range of topics are covered in the journal including adsorption, membranes, extraction, distillation, absorption, centrifugation, crystallization, precipitation, reactive separations, hybrid processes, continuous separations, carbon capture, flocculation and magnetic separations. The journal focuses on state of the art preparative separations and theoretical contributions to the field of separation science. Applications include environmental, energy, water, and biotechnology. The journal does not publish analytical separation papers unless they contain new fundamental contributions to the field of separation science.