Effect of sorption parameters on the removal of malachite green with modified Juniperus Excelsa cone biochar

IF 4.1 4区工程技术 Q3 ENERGY & FUELS

Biomass Conversion and Biorefinery Pub Date : 2025-04-02 DOI:10.1007/s13399-025-06797-x

Uğur Özkan, Okan Bayram, Halil Turgut Şahin

{"title":"Effect of sorption parameters on the removal of malachite green with modified Juniperus Excelsa cone biochar","authors":"Uğur Özkan, Okan Bayram, Halil Turgut Şahin","doi":"10.1007/s13399-025-06797-x","DOIUrl":null,"url":null,"abstract":"<div><p>The use of biochar, which is a carbon-rich material obtained by pyrolysis of various organic raw materials for dye pollution in wastewater, is promising for the removal of dyes from wastewater. Modified biochars whose structures are changed are currently being investigated with many studies. In this study, <i>Juniperus Excelsa</i> (JE) cone, which is an economical and accessible tree species, was converted into biochar (JEB) and modified with iron (mJEB) and given magnetic properties. mJEB was characterized and its structure was investigated by Brunauer–Emmett–Teller (BET), X-Ray diffraction method (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and point of zero charge (pH<sub>PZC</sub>). Afterwards, the removal of malachite green (MG) dye by batch adsorption method was investigated in adsorption parameters such as pH, temperature, time, dosage, initial MG concentration. The results showed that MG adsorption with mJEB proceeded via pseudo-second-order (PSO), was an endothermic process and complied with the Langmuir isotherm model. The maximum adsorption capacity (q<sub>max</sub>) in MG removal with mJEB was calculated as 38.023 mg/g. Our study will be an important step in dye removal studies with mJEB.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 18","pages":"25093 - 25106"},"PeriodicalIF":4.1000,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13399-025-06797-x.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biomass Conversion and Biorefinery","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s13399-025-06797-x","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENERGY & FUELS","Score":null,"Total":0}

引用次数: 0

Abstract

The use of biochar, which is a carbon-rich material obtained by pyrolysis of various organic raw materials for dye pollution in wastewater, is promising for the removal of dyes from wastewater. Modified biochars whose structures are changed are currently being investigated with many studies. In this study, Juniperus Excelsa (JE) cone, which is an economical and accessible tree species, was converted into biochar (JEB) and modified with iron (mJEB) and given magnetic properties. mJEB was characterized and its structure was investigated by Brunauer–Emmett–Teller (BET), X-Ray diffraction method (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and point of zero charge (pH_PZC). Afterwards, the removal of malachite green (MG) dye by batch adsorption method was investigated in adsorption parameters such as pH, temperature, time, dosage, initial MG concentration. The results showed that MG adsorption with mJEB proceeded via pseudo-second-order (PSO), was an endothermic process and complied with the Langmuir isotherm model. The maximum adsorption capacity (q_max) in MG removal with mJEB was calculated as 38.023 mg/g. Our study will be an important step in dye removal studies with mJEB.

Graphical Abstract

查看原文本刊更多论文

吸附参数对改性刺柏生物炭去除孔雀石绿的影响

生物炭是一种富含碳的物质，通过对废水中染料污染的各种有机原料进行热解得到，有望用于废水中染料的去除。改变结构的改性生物炭目前正在进行许多研究。本研究将经济型、可获取的杉木（Juniperus Excelsa， JE）球果转化为生物炭（JEB），并用铁（mJEB）改性，并赋予其磁性。采用bruauer - emmet - teller （BET）、x射线衍射（XRD）、傅里叶变换红外光谱（FT-IR）、扫描电镜（SEM）和零电荷点（pHPZC）对mJEB进行了表征和结构研究。然后，考察了pH、温度、时间、投加量、MG初始浓度等吸附参数对孔雀石绿（MG）染料的去除效果。结果表明，mJEB吸附MG的过程为准二级吸附过程，符合Langmuir等温吸附模型。mJEB对MG的最大吸附量（qmax）为38.023 MG /g。本研究为mJEB脱色研究迈出了重要的一步。图形抽象

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

Biomass Conversion and Biorefinery Energy-Renewable Energy, Sustainability and the Environment

CiteScore

7.00

自引率

15.00%

发文量

1358

期刊介绍： Biomass Conversion and Biorefinery presents articles and information on research, development and applications in thermo-chemical conversion; physico-chemical conversion and bio-chemical conversion, including all necessary steps for the provision and preparation of the biomass as well as all possible downstream processing steps for the environmentally sound and economically viable provision of energy and chemical products.