{"title":"3D printed GO-g-C3N4-geopolymer components with acid treatment for the removal of methylene blue from wastewater","authors":"Xuehui Liu, Shengjian Zhao, Quanhong Li, Peigang He, Xiaoming Duan, Dechang Jia, Yu Zhou","doi":"10.1111/jace.20377","DOIUrl":null,"url":null,"abstract":"<p>In this work, the synthesized geopolymer was prepared using metakaolin and alkali activator, and during the geopolymerization process, g-C<sub>3</sub>N<sub>4</sub> and different contents of GO were added to the geopolymer, and GO-g-C<sub>3</sub>N<sub>4</sub>-GP was finally obtained. These samples can remove methylene blue (MB) utilizing the synergistic effect of adsorption and photocatalysis. 10% GO-g-C<sub>3</sub>N<sub>4</sub>-GP had the best removal rate of 93.28% within 30 min, under visible light. The results confirmed that geopolymers can provide a reusable carrier for g-C<sub>3</sub>N<sub>4</sub>, and the presence of GO can hinder the recombination of charges and promote the migration of photogenerated electrons, further improving the photocatalytic performance. 10% GO-g-C<sub>3</sub>N<sub>4</sub>-GP was also used to 3D print a scaffold by using the direct ink writing technology. To improve the efficiency of MB removal, 3D printed samples were treated with acid, and the sample of the 3D printed 10% GO-g-C<sub>3</sub>N<sub>4</sub>-GP acid treatment was also effective in removing MB and facilitates the recovery of the active material. This work can provide a simple way for synthesizing green materials for removing organic dyes.</p>","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 5","pages":""},"PeriodicalIF":3.5000,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the American Ceramic Society","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/jace.20377","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
引用次数: 0
摘要
本研究利用偏高岭土和碱活化剂制备了合成土工聚合物，并在土工聚合过程中加入了 g-C3N4 和不同含量的 GO，最终得到了 GO-g-C3N4-GP。这些样品可以利用吸附和光催化的协同效应去除亚甲基蓝（MB）。在可见光条件下，10%的 GO-g-C3N4-GP 在 30 分钟内的去除率最高，达到 93.28%。结果证实，土工聚合物可以为 g-C3N4 提供可重复使用的载体，而 GO 的存在可以阻碍电荷的重组，促进光生电子的迁移，从而进一步提高光催化性能。此外，10%的GO-g-C3N4-GP还被用于利用直接墨水书写技术三维打印支架。为了提高甲基溴的去除效率，对 3D 打印的样品进行了酸处理，3D 打印的 10% GO-g-C3N4-GP 酸处理样品也能有效去除甲基溴，并有利于活性材料的回收。这项工作可以为合成去除有机染料的绿色材料提供一种简单的方法。
3D printed GO-g-C3N4-geopolymer components with acid treatment for the removal of methylene blue from wastewater
In this work, the synthesized geopolymer was prepared using metakaolin and alkali activator, and during the geopolymerization process, g-C3N4 and different contents of GO were added to the geopolymer, and GO-g-C3N4-GP was finally obtained. These samples can remove methylene blue (MB) utilizing the synergistic effect of adsorption and photocatalysis. 10% GO-g-C3N4-GP had the best removal rate of 93.28% within 30 min, under visible light. The results confirmed that geopolymers can provide a reusable carrier for g-C3N4, and the presence of GO can hinder the recombination of charges and promote the migration of photogenerated electrons, further improving the photocatalytic performance. 10% GO-g-C3N4-GP was also used to 3D print a scaffold by using the direct ink writing technology. To improve the efficiency of MB removal, 3D printed samples were treated with acid, and the sample of the 3D printed 10% GO-g-C3N4-GP acid treatment was also effective in removing MB and facilitates the recovery of the active material. This work can provide a simple way for synthesizing green materials for removing organic dyes.
期刊介绍：
The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials.
Papers on fundamental ceramic and glass science are welcome including those in the following areas:
Enabling materials for grand challenges[...]
Materials design, selection, synthesis and processing methods[...]
Characterization of compositions, structures, defects, and properties along with new methods [...]
Mechanisms, Theory, Modeling, and Simulation[...]
JACerS accepts submissions of full-length Articles reporting original research, in-depth Feature Articles, Reviews of the state-of-the-art with compelling analysis, and Rapid Communications which are short papers with sufficient novelty or impact to justify swift publication.
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