以黄瓜秸秆为原料制备氢氧化钠活化的分级多孔生物炭，以有效去除水溶液中的强力霉素

IF 3.5 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Journal of contaminant hydrology Pub Date : 2025-05-18 DOI:10.1016/j.jconhyd.2025.104612

Guofu Huang , Mianmian Wang , Changchun Li , Qianqian Wu , Qing Liu , Shasha Zhao , Yucui Shi , Haoran Cheng , Chenxi Zhang

{"title":"以黄瓜秸秆为原料制备氢氧化钠活化的分级多孔生物炭，以有效去除水溶液中的强力霉素","authors":"Guofu Huang , Mianmian Wang , Changchun Li , Qianqian Wu , Qing Liu , Shasha Zhao , Yucui Shi , Haoran Cheng , Chenxi Zhang","doi":"10.1016/j.jconhyd.2025.104612","DOIUrl":null,"url":null,"abstract":"<div><div>The effective utilization of biomass waste for the fabrication of biochar adsorbents has aroused significant interest. In this work, a novel hierarchical porous biochar (HPBC) was successfully synthesized by dry mixing combined with one-step pyrolysis method using cucumber straw as a raw material and NaOH as an activator. The prepared HPBC was then applied to remove doxycycline (DOX) from aqueous solutions. HPBC comprised hierarchical porous structures with excellent specific surface area (1409.75 m<sup>2</sup> g<sup>−1</sup>), high pore volume (0.6549 cm<sup>3</sup> g<sup>−1</sup>), and small average pore diameter (1.8582 nm). HPBC was found to contain multiple functional groups involving hydroxyl, carbonyl, amine, and aromatic structure. The adsorption kinetics and isotherm of DOX on HPBC were well described by the Avrami fractional order model and Sips model, suggesting that the adsorption process involved multiple kinetics as well as monolayer and multilayer adsorptions. HPBC exhibited an excellent adsorption capacity for DOX with the maximum value of 552.30 mg g<sup>−1</sup> at 25 °C (Sips model). The possible adsorption mechanisms of DOX on HPBC included pore filling, π-π interactions, hydrogen bonding, and electrostatic interactions. This study provided a new approach for resource utilization of straw waste and effective removal of antibiotics from water.</div></div>","PeriodicalId":15530,"journal":{"name":"Journal of contaminant hydrology","volume":"273 ","pages":"Article 104612"},"PeriodicalIF":3.5000,"publicationDate":"2025-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Facile synthesization of NaOH activated hierarchical porous biochar from cucumber straw for the effective removal of doxycycline in aqueous solution\",\"authors\":\"Guofu Huang , Mianmian Wang , Changchun Li , Qianqian Wu , Qing Liu , Shasha Zhao , Yucui Shi , Haoran Cheng , Chenxi Zhang\",\"doi\":\"10.1016/j.jconhyd.2025.104612\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The effective utilization of biomass waste for the fabrication of biochar adsorbents has aroused significant interest. In this work, a novel hierarchical porous biochar (HPBC) was successfully synthesized by dry mixing combined with one-step pyrolysis method using cucumber straw as a raw material and NaOH as an activator. The prepared HPBC was then applied to remove doxycycline (DOX) from aqueous solutions. HPBC comprised hierarchical porous structures with excellent specific surface area (1409.75 m<sup>2</sup> g<sup>−1</sup>), high pore volume (0.6549 cm<sup>3</sup> g<sup>−1</sup>), and small average pore diameter (1.8582 nm). HPBC was found to contain multiple functional groups involving hydroxyl, carbonyl, amine, and aromatic structure. The adsorption kinetics and isotherm of DOX on HPBC were well described by the Avrami fractional order model and Sips model, suggesting that the adsorption process involved multiple kinetics as well as monolayer and multilayer adsorptions. HPBC exhibited an excellent adsorption capacity for DOX with the maximum value of 552.30 mg g<sup>−1</sup> at 25 °C (Sips model). The possible adsorption mechanisms of DOX on HPBC included pore filling, π-π interactions, hydrogen bonding, and electrostatic interactions. This study provided a new approach for resource utilization of straw waste and effective removal of antibiotics from water.</div></div>\",\"PeriodicalId\":15530,\"journal\":{\"name\":\"Journal of contaminant hydrology\",\"volume\":\"273 \",\"pages\":\"Article 104612\"},\"PeriodicalIF\":3.5000,\"publicationDate\":\"2025-05-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of contaminant hydrology\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0169772225001172\",\"RegionNum\":3,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of contaminant hydrology","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0169772225001172","RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}

引用次数: 0

摘要

有效利用生物质废弃物制备生物炭吸附剂已引起人们极大的兴趣。本文以黄瓜秸秆为原料，以NaOH为活化剂，采用干法混合结合一步热解法制备了一种新型层次化多孔生物炭（HPBC）。然后将制备好的HPBC用于去除水溶液中的强力霉素（DOX）。HPBC具有优异的比表面积（1409.75 m2 g−1）、高孔隙体积（0.6549 cm3 g−1）和小平均孔径（1.8582 nm）的分层多孔结构。发现HPBC含有多个官能团，涉及羟基，羰基，胺和芳香结构。Avrami分数阶模型和Sips模型很好地描述了DOX在HPBC上的吸附动力学和等温线，表明吸附过程涉及多重动力学，包括单层和多层吸附。HPBC对DOX具有良好的吸附能力，在25°C时（Sips模型）的最大值为552.30 mg g−1。DOX在HPBC上的吸附机制可能包括孔隙填充、π-π相互作用、氢键和静电相互作用。本研究为秸秆废弃物资源化利用和有效去除水中抗生素提供了新的途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Facile synthesization of NaOH activated hierarchical porous biochar from cucumber straw for the effective removal of doxycycline in aqueous solution

The effective utilization of biomass waste for the fabrication of biochar adsorbents has aroused significant interest. In this work, a novel hierarchical porous biochar (HPBC) was successfully synthesized by dry mixing combined with one-step pyrolysis method using cucumber straw as a raw material and NaOH as an activator. The prepared HPBC was then applied to remove doxycycline (DOX) from aqueous solutions. HPBC comprised hierarchical porous structures with excellent specific surface area (1409.75 m² g⁻¹), high pore volume (0.6549 cm³ g⁻¹), and small average pore diameter (1.8582 nm). HPBC was found to contain multiple functional groups involving hydroxyl, carbonyl, amine, and aromatic structure. The adsorption kinetics and isotherm of DOX on HPBC were well described by the Avrami fractional order model and Sips model, suggesting that the adsorption process involved multiple kinetics as well as monolayer and multilayer adsorptions. HPBC exhibited an excellent adsorption capacity for DOX with the maximum value of 552.30 mg g⁻¹ at 25 °C (Sips model). The possible adsorption mechanisms of DOX on HPBC included pore filling, π-π interactions, hydrogen bonding, and electrostatic interactions. This study provided a new approach for resource utilization of straw waste and effective removal of antibiotics from water.

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

Journal of contaminant hydrology 环境科学-地球科学综合

CiteScore

6.80

自引率

2.80%

发文量

129

审稿时长

68 days

期刊介绍： The Journal of Contaminant Hydrology is an international journal publishing scientific articles pertaining to the contamination of subsurface water resources. Emphasis is placed on investigations of the physical, chemical, and biological processes influencing the behavior and fate of organic and inorganic contaminants in the unsaturated (vadose) and saturated (groundwater) zones, as well as at groundwater-surface water interfaces. The ecological impacts of contaminants transported both from and to aquifers are of interest. Articles on contamination of surface water only, without a link to groundwater, are out of the scope. Broad latitude is allowed in identifying contaminants of interest, and include legacy and emerging pollutants, nutrients, nanoparticles, pathogenic microorganisms (e.g., bacteria, viruses, protozoa), microplastics, and various constituents associated with energy production (e.g., methane, carbon dioxide, hydrogen sulfide). The journal''s scope embraces a wide range of topics including: experimental investigations of contaminant sorption, diffusion, transformation, volatilization and transport in the surface and subsurface; characterization of soil and aquifer properties only as they influence contaminant behavior; development and testing of mathematical models of contaminant behaviour; innovative techniques for restoration of contaminated sites; development of new tools or techniques for monitoring the extent of soil and groundwater contamination; transformation of contaminants in the hyporheic zone; effects of contaminants traversing the hyporheic zone on surface water and groundwater ecosystems; subsurface carbon sequestration and/or turnover; and migration of fluids associated with energy production into groundwater.