Dawei Wang, Huan Wang, Ziguang Tan, Abdulraheem SA Almalki, Ahmed M. Fallatah, Silin Yang, Zhengjun Shi
{"title":"利用壳聚糖衍生物原位制备掺杂 CuO/Cu2O/Cu/N 的生物炭:去除抗生素的吸附特性和光-芬顿催化性能","authors":"Dawei Wang, Huan Wang, Ziguang Tan, Abdulraheem SA Almalki, Ahmed M. Fallatah, Silin Yang, Zhengjun Shi","doi":"10.1007/s42114-024-01069-0","DOIUrl":null,"url":null,"abstract":"<div><p>Nanosheets of chitosan-Schiff base copper complex (CS-Schiff-Cu) were synthesized by coordination of Cu<sup>2+</sup> with chitosan-salicylaldehyde Schiff base. Then, nanoparticles of copper-nitrogen codoped biochar (Cu–N-C-700) were prepared by pyrolysis of CS-Schiff-Cu nanosheets in N<sub>2</sub> atmosphere at 700 °C. Morphological and structural characterizations indicated that, in Cu–N-C-700 the nanostructured CuO, Cu<sub>2</sub>O, and Cu active sites were successfully implanted in-situ in the biochar matrix, and the N element was doped into carbon as pyrrolic and pyridinic structures. BET measurement revealed that Cu–N-C-700 possesses mesoporous structure with average pore diameter of 21 nm. The adsorption of tetracycline antibiotic on Cu–N-C-700 in aqueous solution was calculated to follow the Freundlich isotherm model and the pseudo-first-order kinetic model. The Cu–N-C-700/H<sub>2</sub>O<sub>2</sub> system exhibited good catalytic performance in degradation of tetracycline with a degradation efficiency of 98.5% after irradiating for 15 min. The influence of H<sub>2</sub>O<sub>2</sub> dosage and initial pH value on the degradation of tetracycline was discussed in detail. The possible degradation pathway of tetracycline was also investigated. The Cu–N-C-700 nanocomposite remained stable in five consecutive cycles, suggesting good reusability. Finally, a reasonable adsorption-photo-Fenton synergy mechanism was proposed based on the CuO/Cu<sub>2</sub>O/Cu multi-active centers and the good adsorption and conductive performance of biochar.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2000,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"In-situ preparation of CuO/Cu2O/Cu/N-codoped biochar from chitosan derivative: Adsorption property and photo-Fenton catalytic performance in removal of antibiotic\",\"authors\":\"Dawei Wang, Huan Wang, Ziguang Tan, Abdulraheem SA Almalki, Ahmed M. Fallatah, Silin Yang, Zhengjun Shi\",\"doi\":\"10.1007/s42114-024-01069-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Nanosheets of chitosan-Schiff base copper complex (CS-Schiff-Cu) were synthesized by coordination of Cu<sup>2+</sup> with chitosan-salicylaldehyde Schiff base. Then, nanoparticles of copper-nitrogen codoped biochar (Cu–N-C-700) were prepared by pyrolysis of CS-Schiff-Cu nanosheets in N<sub>2</sub> atmosphere at 700 °C. Morphological and structural characterizations indicated that, in Cu–N-C-700 the nanostructured CuO, Cu<sub>2</sub>O, and Cu active sites were successfully implanted in-situ in the biochar matrix, and the N element was doped into carbon as pyrrolic and pyridinic structures. BET measurement revealed that Cu–N-C-700 possesses mesoporous structure with average pore diameter of 21 nm. The adsorption of tetracycline antibiotic on Cu–N-C-700 in aqueous solution was calculated to follow the Freundlich isotherm model and the pseudo-first-order kinetic model. The Cu–N-C-700/H<sub>2</sub>O<sub>2</sub> system exhibited good catalytic performance in degradation of tetracycline with a degradation efficiency of 98.5% after irradiating for 15 min. The influence of H<sub>2</sub>O<sub>2</sub> dosage and initial pH value on the degradation of tetracycline was discussed in detail. The possible degradation pathway of tetracycline was also investigated. The Cu–N-C-700 nanocomposite remained stable in five consecutive cycles, suggesting good reusability. Finally, a reasonable adsorption-photo-Fenton synergy mechanism was proposed based on the CuO/Cu<sub>2</sub>O/Cu multi-active centers and the good adsorption and conductive performance of biochar.</p></div>\",\"PeriodicalId\":7220,\"journal\":{\"name\":\"Advanced Composites and Hybrid Materials\",\"volume\":\"8 1\",\"pages\":\"\"},\"PeriodicalIF\":23.2000,\"publicationDate\":\"2024-11-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advanced Composites and Hybrid Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s42114-024-01069-0\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, COMPOSITES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Composites and Hybrid Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s42114-024-01069-0","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}
In-situ preparation of CuO/Cu2O/Cu/N-codoped biochar from chitosan derivative: Adsorption property and photo-Fenton catalytic performance in removal of antibiotic
Nanosheets of chitosan-Schiff base copper complex (CS-Schiff-Cu) were synthesized by coordination of Cu2+ with chitosan-salicylaldehyde Schiff base. Then, nanoparticles of copper-nitrogen codoped biochar (Cu–N-C-700) were prepared by pyrolysis of CS-Schiff-Cu nanosheets in N2 atmosphere at 700 °C. Morphological and structural characterizations indicated that, in Cu–N-C-700 the nanostructured CuO, Cu2O, and Cu active sites were successfully implanted in-situ in the biochar matrix, and the N element was doped into carbon as pyrrolic and pyridinic structures. BET measurement revealed that Cu–N-C-700 possesses mesoporous structure with average pore diameter of 21 nm. The adsorption of tetracycline antibiotic on Cu–N-C-700 in aqueous solution was calculated to follow the Freundlich isotherm model and the pseudo-first-order kinetic model. The Cu–N-C-700/H2O2 system exhibited good catalytic performance in degradation of tetracycline with a degradation efficiency of 98.5% after irradiating for 15 min. The influence of H2O2 dosage and initial pH value on the degradation of tetracycline was discussed in detail. The possible degradation pathway of tetracycline was also investigated. The Cu–N-C-700 nanocomposite remained stable in five consecutive cycles, suggesting good reusability. Finally, a reasonable adsorption-photo-Fenton synergy mechanism was proposed based on the CuO/Cu2O/Cu multi-active centers and the good adsorption and conductive performance of biochar.
期刊介绍:
Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field.
The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest.
Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials.
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