聚吡咯改性玉米秸秆生物炭对土壤中Cr（VI）的有效修复

IF 3.8 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Water, Air, & Soil Pollution Pub Date : 2025-04-29 DOI:10.1007/s11270-025-08041-8

Yiping Guo, Weijie Feng, Qianqian Zhang, Wanfei Shao, Xiangkai Tao, Weigao Zhao, Sang-Hyoun Kim, K. C. Surendra, Samir Kumar Khanal

{"title":"聚吡咯改性玉米秸秆生物炭对土壤中Cr（VI）的有效修复","authors":"Yiping Guo, Weijie Feng, Qianqian Zhang, Wanfei Shao, Xiangkai Tao, Weigao Zhao, Sang-Hyoun Kim, K. C. Surendra, Samir Kumar Khanal","doi":"10.1007/s11270-025-08041-8","DOIUrl":null,"url":null,"abstract":"<div><p>Chromium pollution is a pervasive concern that demands an efficient treatment solution. The authors employed polypyrrole (PPy) modified corn stover biochar (CSB) to remediate Cr(VI)-contaminated soil. PPy-CSB significantly lowered the leachability of Cr(VI) according to the toxicity characteristic leaching procedure (TCLP) in the soil below 3 mg/kg within 50 days, from the initial values ranging from 200 to 1000 mg/kg. In eluviation experiments, soil treated with PPy-CSB exhibited a Cr(VI) release rate of 59.0%, which was substantially lower than the 84.3% from control soil and 81.8% from CSB-treated soil. Analysis of soil characteristics demonstrated that PPy-CSB effectively reduced Cr(VI) to the less toxic Cr(III) by the action of major functional groups (in order of activity): -C–OH, = N-, -NH-, and N–O-C, which were oxidized to C = O, C-O, NH<sup>3+</sup>, C–C/C-H and -C–O–C-. In conclusion, the findings present PPy-CSB as a cost-effective and efficient solution for remediating Cr(VI) contaminated soil.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 7","pages":""},"PeriodicalIF":3.8000,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Efficient Remediation of Cr(VI) in Soil by Polypyrrole Modified Corn-Stover Biochar\",\"authors\":\"Yiping Guo, Weijie Feng, Qianqian Zhang, Wanfei Shao, Xiangkai Tao, Weigao Zhao, Sang-Hyoun Kim, K. C. Surendra, Samir Kumar Khanal\",\"doi\":\"10.1007/s11270-025-08041-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Chromium pollution is a pervasive concern that demands an efficient treatment solution. The authors employed polypyrrole (PPy) modified corn stover biochar (CSB) to remediate Cr(VI)-contaminated soil. PPy-CSB significantly lowered the leachability of Cr(VI) according to the toxicity characteristic leaching procedure (TCLP) in the soil below 3 mg/kg within 50 days, from the initial values ranging from 200 to 1000 mg/kg. In eluviation experiments, soil treated with PPy-CSB exhibited a Cr(VI) release rate of 59.0%, which was substantially lower than the 84.3% from control soil and 81.8% from CSB-treated soil. Analysis of soil characteristics demonstrated that PPy-CSB effectively reduced Cr(VI) to the less toxic Cr(III) by the action of major functional groups (in order of activity): -C–OH, = N-, -NH-, and N–O-C, which were oxidized to C = O, C-O, NH<sup>3+</sup>, C–C/C-H and -C–O–C-. In conclusion, the findings present PPy-CSB as a cost-effective and efficient solution for remediating Cr(VI) contaminated soil.</p><h3>Graphical Abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":808,\"journal\":{\"name\":\"Water, Air, & Soil Pollution\",\"volume\":\"236 7\",\"pages\":\"\"},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2025-04-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Water, Air, & Soil Pollution\",\"FirstCategoryId\":\"6\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11270-025-08041-8\",\"RegionNum\":4,\"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":"Water, Air, & Soil Pollution","FirstCategoryId":"6","ListUrlMain":"https://link.springer.com/article/10.1007/s11270-025-08041-8","RegionNum":4,"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

铬污染是一个普遍关注的问题，需要一个有效的处理方案。采用聚吡咯（PPy）改性玉米秸秆生物炭（CSB）修复铬（VI）污染土壤。PPy-CSB在50天内显著降低了土壤中Cr（VI）在3 mg/kg以下的毒性特征浸出过程（TCLP），从初始值200 ~ 1000 mg/kg。淋溶试验中，PPy-CSB处理土壤的Cr（VI）释放率为59.0%，显著低于对照土壤的84.3%和csb处理土壤的81.8%。土壤特征分析表明，PPy-CSB通过主要官能团（按活性顺序）-C - oh、= N-、- nhh -和N- O-C，将Cr（VI）有效还原为毒性较小的Cr(III)，这些官能团被氧化为C = O、C-O、NH3+、C- C/C- h和-C -O -C -。总之，研究结果表明PPy-CSB是一种经济有效的修复Cr（VI）污染土壤的解决方案。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。

查看原文本刊更多论文

Efficient Remediation of Cr(VI) in Soil by Polypyrrole Modified Corn-Stover Biochar

Chromium pollution is a pervasive concern that demands an efficient treatment solution. The authors employed polypyrrole (PPy) modified corn stover biochar (CSB) to remediate Cr(VI)-contaminated soil. PPy-CSB significantly lowered the leachability of Cr(VI) according to the toxicity characteristic leaching procedure (TCLP) in the soil below 3 mg/kg within 50 days, from the initial values ranging from 200 to 1000 mg/kg. In eluviation experiments, soil treated with PPy-CSB exhibited a Cr(VI) release rate of 59.0%, which was substantially lower than the 84.3% from control soil and 81.8% from CSB-treated soil. Analysis of soil characteristics demonstrated that PPy-CSB effectively reduced Cr(VI) to the less toxic Cr(III) by the action of major functional groups (in order of activity): -C–OH, = N-, -NH-, and N–O-C, which were oxidized to C = O, C-O, NH³⁺, C–C/C-H and -C–O–C-. In conclusion, the findings present PPy-CSB as a cost-effective and efficient solution for remediating Cr(VI) contaminated soil.

Graphical Abstract

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

Water, Air, & Soil Pollution 环境科学-环境科学

CiteScore

4.50

自引率

6.90%

发文量

448

审稿时长

2.6 months

期刊介绍： Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments. Articles should not be submitted that are of local interest only and do not advance international knowledge in environmental pollution and solutions to pollution. Articles that simply replicate known knowledge or techniques while researching a local pollution problem will normally be rejected without review. Submitted articles must have up-to-date references, employ the correct experimental replication and statistical analysis, where needed and contain a significant contribution to new knowledge. The publishing and editorial team sincerely appreciate your cooperation. Water, Air, & Soil Pollution publishes research papers; review articles; mini-reviews; and book reviews.