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To efficiently remove Cd (II) from water, this study prepared a novel adsorbent by compositing hydrochloric acid-activated attapulgite with hydrochar and in-situ loading iron-manganese bimetallic oxides. The material was characterized by SEM-EDS, XPS, XRD, FTIR, and BET, revealing the synergistic chemisorption of Cd (II) by iron-manganese oxides and functional groups such as hydroxyl and carboxyl groups. The optimally proportioned adsorbent exhibited a maximum Cd (II) adsorption capacity of 66.8mg/g. The adsorption process followed pseudo-second-order kinetics and the Langmuir model, indicating predominantly monolayer chemisorption. After five adsorption-desorption cycles, the material retained approximately 75% of its initial adsorption capacity, demonstrating excellent regeneration performance. These experimental results provide a reliable technical basis for low-cost, highly efficient, and reusable remediation of heavy metals in water bodies.

, authors=Jun-wei GE1, Hui-dong LIU1, 3, Meng-yu WANG2, Zhi-cheng SHEN1, Sheng-cheng YU1, Liang-fei DONG1, *, authorsList=Jun-wei GE, Hui-dong LIU, Meng-yu WANG, Zhi-cheng SHEN, Sheng-cheng YU, Liang-fei DONG, authorCompany=null, correspAuthors=Liang-fei DONG, 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=1314917610228122288, articleId=1314917609737388718, tenantId=1146029695717560320, journalId=1234093305789726721, language=CN, title=铁锰氧化物负载凹土-水热炭复合材料对水中Cd的吸附性能及机制研究, columnId=1234106386565624579, journalTitle=中国环境科学, columnName=水污染与控制, runingTitle=null, highlight=null, articleAbstract=

为高效去除水中Cd(II),本研究将盐酸活化凹凸棒土与水热炭复合,并原位负载铁锰双金属氧化物,制备了一种新型吸附剂.采用SEM-EDS,XPS,XRD,FTIR,BET对材料进行表征,揭示了铁锰氧化物及羟基、羧基等功能位点对Cd(II)的协同化学吸附作用.最佳配比吸附剂对Cd(II)的最大吸附容量为66.8mg/g.吸附过程符合伪二级动力学和Langmuir模型,表明主要为单层化学吸附.经5次吸附-脱附循环后,材料仍保持约75%的初始吸附容量,展现出优异的再生性能.本实验结果为低成本、高效、多次可用的水体重金属治理提供了可靠的技术支撑.

, authors=葛俊伟1, 刘会东1, 3, 汪梦宇2, 沈志澄1, 余升城1, 董良飞1, *, authorsList=葛俊伟, 刘会东, 汪梦宇, 沈志澄, 余升城, 董良飞, authorCompany=null, correspAuthors=董良飞, authorNote=

葛俊伟(2001-),男,江苏盐城人,硕士研究生,主要从事水污染控制与重金属修复研究.发表论文1篇..

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葛俊伟(2001-),男,江苏盐城人,硕士研究生,主要从事水污染控制与重金属修复研究.发表论文1篇..

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葛俊伟(2001-),男,江苏盐城人,硕士研究生,主要从事水污染控制与重金属修复研究.发表论文1篇..

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铁锰氧化物负载凹土-水热炭复合材料对水中Cd的吸附性能及机制研究
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葛俊伟 1 , 刘会东 1, 3 , 汪梦宇 2 , 沈志澄 1 , 余升城 1 , 董良飞 1, *
中国环境科学 | 水污染与控制 2025,45(9): 4923-4934
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中国环境科学 |水污染与控制 2025 , 45 (9) : 4923 -4934
铁锰氧化物负载凹土-水热炭复合材料对水中Cd的吸附性能及机制研究
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葛俊伟(2001-),男,江苏盐城人,硕士研究生,主要从事水污染控制与重金属修复研究.发表论文1篇..

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葛俊伟(2001-),男,江苏盐城人,硕士研究生,主要从事水污染控制与重金属修复研究.发表论文1篇..

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葛俊伟1 , 刘会东1, 3, 汪梦宇2, 沈志澄1, 余升城1, 董良飞1, *
作者信息
  • 1.常州大学城市建设学院,江苏 常州 213164
  • 2.常州大学环境学院,江苏 常州 213164
  • 3.江苏一环集团有限公司,江苏 无锡 214206
通讯作者:
* 责任作者,教授,
作者简介:

葛俊伟(2001-),男,江苏盐城人,硕士研究生,主要从事水污染控制与重金属修复研究.发表论文1篇..

Study on the adsorption performance and mechanism of Fe/MnOx loaded attapulgite-hydrochar composite material for Cd in water
Jun-wei GE1 , Hui-dong LIU1, 3, Meng-yu WANG2, Zhi-cheng SHEN1, Sheng-cheng YU1, Liang-fei DONG1, *
Affiliations
  • 1.School of Urban Construction, Changzhou University, Changzhou 213164, China
  • 2.School of Environmental Science and Engineering, Changzhou University, Changzhou 213164, China
  • 3.Jiangsu Yihuan Grp Co Ltd, Wuxi 214206, China
出版时间: 2025-09-20
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为高效去除水中Cd(II),本研究将盐酸活化凹凸棒土与水热炭复合,并原位负载铁锰双金属氧化物,制备了一种新型吸附剂.采用SEM-EDS,XPS,XRD,FTIR,BET对材料进行表征,揭示了铁锰氧化物及羟基、羧基等功能位点对Cd(II)的协同化学吸附作用.最佳配比吸附剂对Cd(II)的最大吸附容量为66.8mg/g.吸附过程符合伪二级动力学和Langmuir模型,表明主要为单层化学吸附.经5次吸附-脱附循环后,材料仍保持约75%的初始吸附容量,展现出优异的再生性能.本实验结果为低成本、高效、多次可用的水体重金属治理提供了可靠的技术支撑.

凹凸棒土  /  水热炭  /  Cd(II)  /  吸附机理

To efficiently remove Cd (II) from water, this study prepared a novel adsorbent by compositing hydrochloric acid-activated attapulgite with hydrochar and in-situ loading iron-manganese bimetallic oxides. The material was characterized by SEM-EDS, XPS, XRD, FTIR, and BET, revealing the synergistic chemisorption of Cd (II) by iron-manganese oxides and functional groups such as hydroxyl and carboxyl groups. The optimally proportioned adsorbent exhibited a maximum Cd (II) adsorption capacity of 66.8mg/g. The adsorption process followed pseudo-second-order kinetics and the Langmuir model, indicating predominantly monolayer chemisorption. After five adsorption-desorption cycles, the material retained approximately 75% of its initial adsorption capacity, demonstrating excellent regeneration performance. These experimental results provide a reliable technical basis for low-cost, highly efficient, and reusable remediation of heavy metals in water bodies.

attapulgite  /  hydrochar  /  Cd (II)  /  adsorption mechanism
葛俊伟, 刘会东, 汪梦宇, 沈志澄, 余升城, 董良飞. 铁锰氧化物负载凹土-水热炭复合材料对水中Cd的吸附性能及机制研究. 中国环境科学, 2025 , 45 (9) : 4923 -4934 .
Jun-wei GE, Hui-dong LIU, Meng-yu WANG, Zhi-cheng SHEN, Sheng-cheng YU, Liang-fei DONG. Study on the adsorption performance and mechanism of Fe/MnOx loaded attapulgite-hydrochar composite material for Cd in water[J]. China Environmental Science, 2025 , 45 (9) : 4923 -4934 .
  • 江苏省教育厅自然科学基金资助项目(22KJD610002)
  • 江苏金茂成兴环保科技有限公司委托研发项目(KYH24020749)
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  • 接收时间:2025-02-13
  • 首发时间:2026-10-08
  • 出版时间:2025-09-20
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  • 收稿日期:2025-02-13
基金
江苏省教育厅自然科学基金资助项目(22KJD610002)
江苏金茂成兴环保科技有限公司委托研发项目(KYH24020749)
作者信息
    1.常州大学城市建设学院,江苏 常州 213164
    2.常州大学环境学院,江苏 常州 213164
    3.江苏一环集团有限公司,江苏 无锡 214206

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* 责任作者,教授,
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
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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