Luying Sun, Juan Zheng, Yao Xue, Lingfeng Ye, Qijuan Fan
{"title":"玉米秸秆生物炭/C3N4 复合材料对镉污染土壤的修复研究","authors":"Luying Sun, Juan Zheng, Yao Xue, Lingfeng Ye, Qijuan Fan","doi":"10.1007/s11270-024-07648-7","DOIUrl":null,"url":null,"abstract":"<div><p>Biomass-activated carbon was prepared from agricultural waste wheat/corn straw, and then mixed with nitrogen (g-C<sub>3</sub>N<sub>4</sub>) in a certain proportion to synthesize carbon-based nanomaterials. Under different experimental conditions (calcination form, mixing ratio), the remediation effects of different types of carbon-based nanomaterials on cadmium (Cd) contaminated soil were investigated. The carbon-based nanomaterial system synthesized from corn biochar mixed nitrogen (g-C<sub>3</sub>N<sub>4</sub>) showed the best adsorption performance. On this basis, the static and dynamic adsorption properties of carbon-based nanomaterials on cadmium (Cd) in soil environment were studied through a series of characterization methods and adsorption models by changing the mixture ratio of corn straw and nitrogen (g-C<sub>3</sub>N<sub>4</sub>), temperature, time, substrate concentration and other background experimental conditions. The results showed that under the conditions of 35 ℃ and adsorption time ≥ 6 h, the calcined and remixed CN: YC = 2:8 samples had the best remediation effect on Cd<sup>2+</sup> contaminated soil with a substrate concentration of 10 mg/L and pH value of 6. Langmuir and Freundlich’s adsorption isothermal models were used to investigate the adsorption mode of NC: YC series samples, which belong to the physical adsorption of a single molecular layer.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 1","pages":""},"PeriodicalIF":3.8000,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Research on Remediation of Cadmium-Contaminated Soil by Corn Stalk Biochar/C3N4 Composites\",\"authors\":\"Luying Sun, Juan Zheng, Yao Xue, Lingfeng Ye, Qijuan Fan\",\"doi\":\"10.1007/s11270-024-07648-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Biomass-activated carbon was prepared from agricultural waste wheat/corn straw, and then mixed with nitrogen (g-C<sub>3</sub>N<sub>4</sub>) in a certain proportion to synthesize carbon-based nanomaterials. Under different experimental conditions (calcination form, mixing ratio), the remediation effects of different types of carbon-based nanomaterials on cadmium (Cd) contaminated soil were investigated. The carbon-based nanomaterial system synthesized from corn biochar mixed nitrogen (g-C<sub>3</sub>N<sub>4</sub>) showed the best adsorption performance. On this basis, the static and dynamic adsorption properties of carbon-based nanomaterials on cadmium (Cd) in soil environment were studied through a series of characterization methods and adsorption models by changing the mixture ratio of corn straw and nitrogen (g-C<sub>3</sub>N<sub>4</sub>), temperature, time, substrate concentration and other background experimental conditions. The results showed that under the conditions of 35 ℃ and adsorption time ≥ 6 h, the calcined and remixed CN: YC = 2:8 samples had the best remediation effect on Cd<sup>2+</sup> contaminated soil with a substrate concentration of 10 mg/L and pH value of 6. Langmuir and Freundlich’s adsorption isothermal models were used to investigate the adsorption mode of NC: YC series samples, which belong to the physical adsorption of a single molecular layer.</p></div>\",\"PeriodicalId\":808,\"journal\":{\"name\":\"Water, Air, & Soil Pollution\",\"volume\":\"236 1\",\"pages\":\"\"},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2024-11-27\",\"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/s11270-024-07648-7\",\"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/s11270-024-07648-7","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}
Research on Remediation of Cadmium-Contaminated Soil by Corn Stalk Biochar/C3N4 Composites
Biomass-activated carbon was prepared from agricultural waste wheat/corn straw, and then mixed with nitrogen (g-C3N4) in a certain proportion to synthesize carbon-based nanomaterials. Under different experimental conditions (calcination form, mixing ratio), the remediation effects of different types of carbon-based nanomaterials on cadmium (Cd) contaminated soil were investigated. The carbon-based nanomaterial system synthesized from corn biochar mixed nitrogen (g-C3N4) showed the best adsorption performance. On this basis, the static and dynamic adsorption properties of carbon-based nanomaterials on cadmium (Cd) in soil environment were studied through a series of characterization methods and adsorption models by changing the mixture ratio of corn straw and nitrogen (g-C3N4), temperature, time, substrate concentration and other background experimental conditions. The results showed that under the conditions of 35 ℃ and adsorption time ≥ 6 h, the calcined and remixed CN: YC = 2:8 samples had the best remediation effect on Cd2+ contaminated soil with a substrate concentration of 10 mg/L and pH value of 6. Langmuir and Freundlich’s adsorption isothermal models were used to investigate the adsorption mode of NC: YC series samples, which belong to the physical adsorption of a single molecular layer.
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.
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