{"title":"粉煤灰制备的 Al(OH)3 对 g-C3N4 基材料的结构和催化性能的影响","authors":"","doi":"10.1016/j.cjche.2024.05.026","DOIUrl":null,"url":null,"abstract":"<div><p>In order to find the optimal combination method of secondary utilization of fly ash and graphite-phase carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) modification, an efficient composite photocatalyst of γ-Al<sub>2</sub>O<sub>3</sub>/g-C<sub>3</sub>N<sub>4</sub> was obtained by calcining the composite precursors of Al(OH)<sub>3</sub>/ dicyandiamide (DCDA). The introduction of Al(OH)<sub>3</sub> prepared by combining fly ash into the precursors causes hydrogen-bonding interactions between Al(OH)<sub>3</sub> and DCDA, which facilitate the removal of N atoms from the edges of the CN framework of g-C<sub>3</sub>N<sub>4</sub> during condensation, and the composites prepared possess more cyano defects. In addition, γ-Al<sub>2</sub>O<sub>3</sub> and g-C<sub>3</sub>N<sub>4</sub> form a chemical bond at the interface, and this chemical bonding causes the density of the electron cloud in the vicinity of the N atoms to increase. Among them, the strongest chemical bonding between Al<sub>2</sub>O<sub>3</sub> and g-C<sub>3</sub>N<sub>4</sub> was observed in ACN-1, whereas the most cyanine defects were formed in ACN-1, which made ACN-1 exhibit the best photocatalytic degradation of methylene blue, which is 2.48 times higher than that of the pristine g-C<sub>3</sub>N<sub>4</sub>.</p></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":3.7000,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of Al(OH)3 prepared from fly ash on the structural and catalytic properties of g-C3N4-based materials\",\"authors\":\"\",\"doi\":\"10.1016/j.cjche.2024.05.026\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In order to find the optimal combination method of secondary utilization of fly ash and graphite-phase carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) modification, an efficient composite photocatalyst of γ-Al<sub>2</sub>O<sub>3</sub>/g-C<sub>3</sub>N<sub>4</sub> was obtained by calcining the composite precursors of Al(OH)<sub>3</sub>/ dicyandiamide (DCDA). The introduction of Al(OH)<sub>3</sub> prepared by combining fly ash into the precursors causes hydrogen-bonding interactions between Al(OH)<sub>3</sub> and DCDA, which facilitate the removal of N atoms from the edges of the CN framework of g-C<sub>3</sub>N<sub>4</sub> during condensation, and the composites prepared possess more cyano defects. In addition, γ-Al<sub>2</sub>O<sub>3</sub> and g-C<sub>3</sub>N<sub>4</sub> form a chemical bond at the interface, and this chemical bonding causes the density of the electron cloud in the vicinity of the N atoms to increase. Among them, the strongest chemical bonding between Al<sub>2</sub>O<sub>3</sub> and g-C<sub>3</sub>N<sub>4</sub> was observed in ACN-1, whereas the most cyanine defects were formed in ACN-1, which made ACN-1 exhibit the best photocatalytic degradation of methylene blue, which is 2.48 times higher than that of the pristine g-C<sub>3</sub>N<sub>4</sub>.</p></div>\",\"PeriodicalId\":9966,\"journal\":{\"name\":\"Chinese Journal of Chemical Engineering\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.7000,\"publicationDate\":\"2024-07-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chinese Journal of Chemical Engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1004954124002210\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chinese Journal of Chemical Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1004954124002210","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Effect of Al(OH)3 prepared from fly ash on the structural and catalytic properties of g-C3N4-based materials
In order to find the optimal combination method of secondary utilization of fly ash and graphite-phase carbon nitride (g-C3N4) modification, an efficient composite photocatalyst of γ-Al2O3/g-C3N4 was obtained by calcining the composite precursors of Al(OH)3/ dicyandiamide (DCDA). The introduction of Al(OH)3 prepared by combining fly ash into the precursors causes hydrogen-bonding interactions between Al(OH)3 and DCDA, which facilitate the removal of N atoms from the edges of the CN framework of g-C3N4 during condensation, and the composites prepared possess more cyano defects. In addition, γ-Al2O3 and g-C3N4 form a chemical bond at the interface, and this chemical bonding causes the density of the electron cloud in the vicinity of the N atoms to increase. Among them, the strongest chemical bonding between Al2O3 and g-C3N4 was observed in ACN-1, whereas the most cyanine defects were formed in ACN-1, which made ACN-1 exhibit the best photocatalytic degradation of methylene blue, which is 2.48 times higher than that of the pristine g-C3N4.
期刊介绍：
The Chinese Journal of Chemical Engineering (Monthly, started in 1982) is the official journal of the Chemical Industry and Engineering Society of China and published by the Chemical Industry Press Co. Ltd. The aim of the journal is to develop the international exchange of scientific and technical information in the field of chemical engineering. It publishes original research papers that cover the major advancements and achievements in chemical engineering in China as well as some articles from overseas contributors.
The topics of journal include chemical engineering, chemical technology, biochemical engineering, energy and environmental engineering and other relevant fields. Papers are published on the basis of their relevance to theoretical research, practical application or potential uses in the industry as Research Papers, Communications, Reviews and Perspectives. Prominent domestic and overseas chemical experts and scholars have been invited to form an International Advisory Board and the Editorial Committee. It enjoys recognition among Chinese academia and industry as a reliable source of information of what is going on in chemical engineering research, both domestic and abroad.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
