Huiying Hu, Kaijian Bi, Haizhong Yu, Pengjiao Tian, Xiqing Wang
{"title":"木质素基共价有机框架生物复合材料的合成：六价铬吸附-光诱导定量评估","authors":"Huiying Hu, Kaijian Bi, Haizhong Yu, Pengjiao Tian, Xiqing Wang","doi":"10.1016/j.arabjc.2024.105980","DOIUrl":null,"url":null,"abstract":"<div><p>A novel bio-covalent organic framework (COF: TpPa-SO<sub>3</sub>H/Lignin) based on TpPa-SO<sub>3</sub>H and lignin from lignocellulose was synthesized for chromium (Cr(VI)) remediation in this study. Results showed that TpPa-SO<sub>3</sub>H/Lignin had a highest adsorption capacity at the range of 5 ∼ 75 mg/L Cr(VI) under 10 mg/L dosage, in which 100 % Cr(VI) could be removal within 120 min. Likewise, the introduction of lignin improved the visible light response range, charge separation and photogenerated carriers, thereby improving the photocatalytic efficiency of Cr(VI) by TpPa-SO<sub>3</sub>H/Lignin. The highest photocatalytic efficiency of TpPa-SO<sub>3</sub>H/Lignin (98.56 %) was observed at the acidic conditions. ESR result shows that e- and ·O<sub>2</sub><sup>–</sup> are generated and played an important role during the photocatalytic reaction, while the contribution of ·OH to Cr(VI) photoreduction is negligible. This study presents a sustainable and efficient approach to mitigating Cr(VI) pollution. It opens up avenues for further exploration of lignocellulose-derived materials in environmental applications and highlights the potential of COFs in addressing heavy metal contaminants.</p></div>","PeriodicalId":249,"journal":{"name":"Arabian Journal of Chemistry","volume":"17 10","pages":"Article 105980"},"PeriodicalIF":5.3000,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1878535224003824/pdfft?md5=573fff0294d4bf3ae05aab28e2d0e24c&pid=1-s2.0-S1878535224003824-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Synthesis of lignin-based covalent organic frameworks bio-composites: Quantitative evaluation of adsorption-photoreduction of hexavalent chromium\",\"authors\":\"Huiying Hu, Kaijian Bi, Haizhong Yu, Pengjiao Tian, Xiqing Wang\",\"doi\":\"10.1016/j.arabjc.2024.105980\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A novel bio-covalent organic framework (COF: TpPa-SO<sub>3</sub>H/Lignin) based on TpPa-SO<sub>3</sub>H and lignin from lignocellulose was synthesized for chromium (Cr(VI)) remediation in this study. Results showed that TpPa-SO<sub>3</sub>H/Lignin had a highest adsorption capacity at the range of 5 ∼ 75 mg/L Cr(VI) under 10 mg/L dosage, in which 100 % Cr(VI) could be removal within 120 min. Likewise, the introduction of lignin improved the visible light response range, charge separation and photogenerated carriers, thereby improving the photocatalytic efficiency of Cr(VI) by TpPa-SO<sub>3</sub>H/Lignin. The highest photocatalytic efficiency of TpPa-SO<sub>3</sub>H/Lignin (98.56 %) was observed at the acidic conditions. ESR result shows that e- and ·O<sub>2</sub><sup>–</sup> are generated and played an important role during the photocatalytic reaction, while the contribution of ·OH to Cr(VI) photoreduction is negligible. This study presents a sustainable and efficient approach to mitigating Cr(VI) pollution. It opens up avenues for further exploration of lignocellulose-derived materials in environmental applications and highlights the potential of COFs in addressing heavy metal contaminants.</p></div>\",\"PeriodicalId\":249,\"journal\":{\"name\":\"Arabian Journal of Chemistry\",\"volume\":\"17 10\",\"pages\":\"Article 105980\"},\"PeriodicalIF\":5.3000,\"publicationDate\":\"2024-08-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S1878535224003824/pdfft?md5=573fff0294d4bf3ae05aab28e2d0e24c&pid=1-s2.0-S1878535224003824-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Arabian Journal of Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1878535224003824\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Arabian Journal of Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1878535224003824","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Synthesis of lignin-based covalent organic frameworks bio-composites: Quantitative evaluation of adsorption-photoreduction of hexavalent chromium
A novel bio-covalent organic framework (COF: TpPa-SO3H/Lignin) based on TpPa-SO3H and lignin from lignocellulose was synthesized for chromium (Cr(VI)) remediation in this study. Results showed that TpPa-SO3H/Lignin had a highest adsorption capacity at the range of 5 ∼ 75 mg/L Cr(VI) under 10 mg/L dosage, in which 100 % Cr(VI) could be removal within 120 min. Likewise, the introduction of lignin improved the visible light response range, charge separation and photogenerated carriers, thereby improving the photocatalytic efficiency of Cr(VI) by TpPa-SO3H/Lignin. The highest photocatalytic efficiency of TpPa-SO3H/Lignin (98.56 %) was observed at the acidic conditions. ESR result shows that e- and ·O2– are generated and played an important role during the photocatalytic reaction, while the contribution of ·OH to Cr(VI) photoreduction is negligible. This study presents a sustainable and efficient approach to mitigating Cr(VI) pollution. It opens up avenues for further exploration of lignocellulose-derived materials in environmental applications and highlights the potential of COFs in addressing heavy metal contaminants.
期刊介绍：
The Arabian Journal of Chemistry is an English language, peer-reviewed scholarly publication in the area of chemistry. The Arabian Journal of Chemistry publishes original papers, reviews and short reports on, but not limited to: inorganic, physical, organic, analytical and biochemistry.
The Arabian Journal of Chemistry is issued by the Arab Union of Chemists and is published by King Saud University together with the Saudi Chemical Society in collaboration with Elsevier and is edited by an international group of eminent researchers.
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