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In order to explore the fractionation characteristics and mechanisms of biomass-pyrogenic smoke-derived dissolved organic matter (BSDOM) on ferrihydrite, this study selected BSDOM derived from three biomass sources (fir-wood chips, rice straw, and alfalfa) to investigate its adsorption on ferrihydrite. The organic compositions and molecular variations of BSDOM in the solution before and after fractionation were characterized using ultraviolet-visible (UV-Vis) spectroscopy, Fourier transform infrared (FTIR) spectroscopy and three-dimensional excitation-emission matrix (3D-EEM) fluorescence spectroscopy. The results indicated that BSDOM primarily consisted of protein-like substances(57%~75%), with cation-π interactions identified as the dominant adsorption mechanism. High molecular weight and highly aromatic compounds exhibited stronger adsorption affinity to ferrihydrite, with polyphenols being preferentially adsorbed. The results demonstrated that acidic conditions enhanced cation-π interactions and ligand exchange between ferrihydrite and BSDOM, thereby promoting adsorption. At high pH(10.0~12.0), the adsorption of polyphenols and short-wave protein-like substances increased, likely due to hydrogen bonding. In contrast, the adsorption of long-wave protein-like substances and humic-like substances decreased, primarily because of increased electrostatic repulsion. This study elucidates the fractionation characteristics of BSDOM on ferrihydrite surfaces at a molecular level, providing insights into the cross-media environmental behavior of BSDOM in surface environments.

, authors=Shu-xin YAO1, Yin-hua ZHONG1, Yi-xin XU1, Hui-ying ZHANG1, Wei-feng CHEN2, *, Jin-zhi NI1, 2, Ran WEI1, 3, authorsList=Shu-xin YAO, Yin-hua ZHONG, Yi-xin XU, Hui-ying ZHANG, Wei-feng CHEN, Jin-zhi NI, Ran WEI, authorCompany=null, correspAuthors=Wei-feng CHEN, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1314918282029793628, articleId=1314918279903281498, tenantId=1146029695717560320, journalId=1234093305789726721, language=CN, title=生物质热解烟雾衍生DOM在水铁矿表面的分子分馏特性, columnId=1234106388364981004, journalTitle=中国环境科学, columnName=大气污染与控制, runingTitle=null, highlight=null, articleAbstract=

为探明生物质热解烟雾衍生的溶解性有机质(BSDOM)在水铁矿上的分馏特征及机制,本研究选取3种生物质来源(杉木、水稻秸秆和苜蓿)的BSDOM开展水铁矿吸附实验,通过紫外、红外和三维荧光光谱等技术分析了分馏前后溶液中BSDOM的有机组成和分子变化特征.研究发现BSDOM主要由类蛋白物质(57%~75%)构成,吸附机制以阳离子-π相互作用为主.分子量大、高芳香性物质更易吸附在水铁矿上,且多酚类物质优先被吸附.酸性条件可增强水铁矿与BSDOM之间的阳离子-π相互作用和配体交换,有利于吸附.而在高pH值(10.0~12.0)下,多酚类和短波类蛋白物质的吸附比增加,归因于氢键作用,长波类蛋白物质和类腐殖酸的吸附比降低是由于静电斥力的增强.本研究从分子角度揭示了BSDOM在水铁矿表面的分馏特征,有助于深入了解BSDOM在地表环境中的跨介质环境行为.

, authors=姚舒馨1, 钟寅华1, 徐忆欣1, 张慧颖1, 陈卫锋2, *, 倪进治1, 2, 魏然1, 3, authorsList=姚舒馨, 钟寅华, 徐忆欣, 张慧颖, 陈卫锋, 倪进治, 魏然, authorCompany=null, correspAuthors=陈卫锋, authorNote=

姚舒馨(2000-),女,江苏南京人,福建师范大学硕士研究生,研究方向为污染生态学.发表论文1篇..

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* 责任作者,副研究员,
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姚舒馨(2000-),女,江苏南京人,福建师范大学硕士研究生,研究方向为污染生态学.发表论文1篇..

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姚舒馨(2000-),女,江苏南京人,福建师范大学硕士研究生,研究方向为污染生态学.发表论文1篇..

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生物质热解烟雾衍生DOM在水铁矿表面的分子分馏特性
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姚舒馨 1 , 钟寅华 1 , 徐忆欣 1 , 张慧颖 1 , 陈卫锋 2, * , 倪进治 1, 2 , 魏然 1, 3
中国环境科学 | 大气污染与控制 2025,45(10): 5422-5434
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中国环境科学 |大气污染与控制 2025 , 45 (10) : 5422 -5434
生物质热解烟雾衍生DOM在水铁矿表面的分子分馏特性
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姚舒馨1 , 钟寅华1, 徐忆欣1, 张慧颖1, 陈卫锋2, * , 倪进治1, 2, 魏然1, 3
作者信息
  • 1.福建师范大学地理科学学院,福建 福州 350007
  • 2.福建师范大学地理研究所,福建省植物生理生态重点实验室,福建 福州 350007
  • 3.福建师范大学,湿润亚热带生态地理过程教育部重点实验室,福建 福州 350007
通讯作者:
* 责任作者,副研究员,
作者简介:

姚舒馨(2000-),女,江苏南京人,福建师范大学硕士研究生,研究方向为污染生态学.发表论文1篇..

Molecular fractionation characteristics of biomass-pyrogenic smoke-derived dissolved organic matter on the surface of ferrihydrite
Shu-xin YAO1 , Yin-hua ZHONG1, Yi-xin XU1, Hui-ying ZHANG1, Wei-feng CHEN2, * , Jin-zhi NI1, 2, Ran WEI1, 3
Affiliations
  • 1.School of Geographical Science, Fujian Normal University, Fuzhou 350007, China
  • 2.Institute of Geography, Fujian Provincial Key Laboratory for Plant Eco-physiology, Fujian Normal University, Fuzhou 350007, China
  • 3.Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou 350007, China
出版时间: 2025-10-20
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为探明生物质热解烟雾衍生的溶解性有机质(BSDOM)在水铁矿上的分馏特征及机制,本研究选取3种生物质来源(杉木、水稻秸秆和苜蓿)的BSDOM开展水铁矿吸附实验,通过紫外、红外和三维荧光光谱等技术分析了分馏前后溶液中BSDOM的有机组成和分子变化特征.研究发现BSDOM主要由类蛋白物质(57%~75%)构成,吸附机制以阳离子-π相互作用为主.分子量大、高芳香性物质更易吸附在水铁矿上,且多酚类物质优先被吸附.酸性条件可增强水铁矿与BSDOM之间的阳离子-π相互作用和配体交换,有利于吸附.而在高pH值(10.0~12.0)下,多酚类和短波类蛋白物质的吸附比增加,归因于氢键作用,长波类蛋白物质和类腐殖酸的吸附比降低是由于静电斥力的增强.本研究从分子角度揭示了BSDOM在水铁矿表面的分馏特征,有助于深入了解BSDOM在地表环境中的跨介质环境行为.

生物质热解烟雾衍生的溶解性有机质  /  水铁矿  /  分子分馏  /  有机组分  /  pH值

In order to explore the fractionation characteristics and mechanisms of biomass-pyrogenic smoke-derived dissolved organic matter (BSDOM) on ferrihydrite, this study selected BSDOM derived from three biomass sources (fir-wood chips, rice straw, and alfalfa) to investigate its adsorption on ferrihydrite. The organic compositions and molecular variations of BSDOM in the solution before and after fractionation were characterized using ultraviolet-visible (UV-Vis) spectroscopy, Fourier transform infrared (FTIR) spectroscopy and three-dimensional excitation-emission matrix (3D-EEM) fluorescence spectroscopy. The results indicated that BSDOM primarily consisted of protein-like substances(57%~75%), with cation-π interactions identified as the dominant adsorption mechanism. High molecular weight and highly aromatic compounds exhibited stronger adsorption affinity to ferrihydrite, with polyphenols being preferentially adsorbed. The results demonstrated that acidic conditions enhanced cation-π interactions and ligand exchange between ferrihydrite and BSDOM, thereby promoting adsorption. At high pH(10.0~12.0), the adsorption of polyphenols and short-wave protein-like substances increased, likely due to hydrogen bonding. In contrast, the adsorption of long-wave protein-like substances and humic-like substances decreased, primarily because of increased electrostatic repulsion. This study elucidates the fractionation characteristics of BSDOM on ferrihydrite surfaces at a molecular level, providing insights into the cross-media environmental behavior of BSDOM in surface environments.

biomass-pyrogenic smoke-derived dissolved organic matter  /  ferrihydrite  /  fractionation  /  organic components  /  pH
姚舒馨, 钟寅华, 徐忆欣, 张慧颖, 陈卫锋, 倪进治, 魏然. 生物质热解烟雾衍生DOM在水铁矿表面的分子分馏特性. 中国环境科学, 2025 , 45 (10) : 5422 -5434 .
Shu-xin YAO, Yin-hua ZHONG, Yi-xin XU, Hui-ying ZHANG, Wei-feng CHEN, Jin-zhi NI, Ran WEI. Molecular fractionation characteristics of biomass-pyrogenic smoke-derived dissolved organic matter on the surface of ferrihydrite[J]. China Environmental Science, 2025 , 45 (10) : 5422 -5434 .
  • 国家自然科学基金资助项目(42077130)
  • 福建省自然科学基金资助项目(2024J01447)
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  • 接收时间:2025-03-10
  • 首发时间:2026-10-08
  • 出版时间:2025-10-20
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  • 收稿日期:2025-03-10
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国家自然科学基金资助项目(42077130)
福建省自然科学基金资助项目(2024J01447)
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    1.福建师范大学地理科学学院,福建 福州 350007
    2.福建师范大学地理研究所,福建省植物生理生态重点实验室,福建 福州 350007
    3.福建师范大学,湿润亚热带生态地理过程教育部重点实验室,福建 福州 350007

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2种不同金属材料的力学参数
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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