Zinc oxide@citric acid-modified graphitic carbon nitride nanocomposites for adsorption and photocatalytic degradation of perfluorooctanoic acid

IF 23.2 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Advanced Composites and Hybrid Materials Pub Date : 2024-03-08 DOI:10.1007/s42114-024-00867-w

Amir Hossein Navidpour, Javad Safaei, Md Abu Hasan Johir, Bing-Jie Ni, Amir Dashti, Xiaowei Li, John L. Zhou

{"title":"Zinc oxide@citric acid-modified graphitic carbon nitride nanocomposites for adsorption and photocatalytic degradation of perfluorooctanoic acid","authors":"Amir Hossein Navidpour, Javad Safaei, Md Abu Hasan Johir, Bing-Jie Ni, Amir Dashti, Xiaowei Li, John L. Zhou","doi":"10.1007/s42114-024-00867-w","DOIUrl":null,"url":null,"abstract":"<div>Perfluorooctanoic acid (PFOA) is a highly persistent organic pollutant of global concern. A novel nanocomposite composed of ZnO nanoparticles and citric acid-modified g-C3N4 was synthesized by ball milling process. The synthesized nanocomposite was more efficient than pure ball-milled ZnO nanoparticles for PFOA elimination under visible light irradiation. The optimal hybrid photocatalyst, produced by the addition of 5 wt% of citric acid-modified g-C3N4, demonstrated significantly better performance for PFOA removal than pure ZnO nanoparticles under UV irradiation, with the apparent rate constants of 0.468 h−1 and 0.097 h−1, respectively. The addition of peroxymonosulfate (0.53 g L−1) significantly increased PFOA removal, clarifying the crucial effect of sulfate radicals on PFOA photodegradation. In comparison, citric acid-modified g-C3N4 was not effective for PFOA elimination under visible light irradiation, even with the addition of peroxymonosulfate. Further experiments under dark conditions identified surface adsorption on hybrid photocatalyst as a key process in total PFOA removal. In summary, PFOA removal by ZnO@citric acid-modified graphitic carbon nitride nanocomposites is due to the combined action from adsorption and photodegradation, with adsorption as the dominating mechanism.</div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":null,"pages":null},"PeriodicalIF":23.2000,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-024-00867-w.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Composites and Hybrid Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s42114-024-00867-w","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}

引用次数: 0

Abstract

Perfluorooctanoic acid (PFOA) is a highly persistent organic pollutant of global concern. A novel nanocomposite composed of ZnO nanoparticles and citric acid-modified g-C₃N₄ was synthesized by ball milling process. The synthesized nanocomposite was more efficient than pure ball-milled ZnO nanoparticles for PFOA elimination under visible light irradiation. The optimal hybrid photocatalyst, produced by the addition of 5 wt% of citric acid-modified g-C₃N₄, demonstrated significantly better performance for PFOA removal than pure ZnO nanoparticles under UV irradiation, with the apparent rate constants of 0.468 h⁻¹ and 0.097 h⁻¹, respectively. The addition of peroxymonosulfate (0.53 g L⁻¹) significantly increased PFOA removal, clarifying the crucial effect of sulfate radicals on PFOA photodegradation. In comparison, citric acid-modified g-C₃N₄ was not effective for PFOA elimination under visible light irradiation, even with the addition of peroxymonosulfate. Further experiments under dark conditions identified surface adsorption on hybrid photocatalyst as a key process in total PFOA removal. In summary, PFOA removal by ZnO@citric acid-modified graphitic carbon nitride nanocomposites is due to the combined action from adsorption and photodegradation, with adsorption as the dominating mechanism.

查看原文本刊更多论文

用于吸附和光催化降解全氟辛酸的氧化锌@柠檬酸改性氮化石墨碳纳米复合材料

摘要全氟辛酸（PFOA）是一种全球关注的高持久性有机污染物。通过球磨工艺合成了一种由氧化锌纳米颗粒和柠檬酸改性 g-C3N4 组成的新型纳米复合材料。在可见光照射下，合成的纳米复合材料比纯球磨氧化锌纳米颗粒更有效地消除 PFOA。添加 5 wt% 的柠檬酸修饰 g-C3N4 生成的最佳混合光催化剂在紫外光照射下的 PFOA 去除性能明显优于纯 ZnO 纳米颗粒，表观速率常数分别为 0.468 h-1 和 0.097 h-1。加入过氧单硫酸盐（0.53 g L-1）可显著提高 PFOA 的去除率，这说明硫酸根自由基对 PFOA 的光降解具有关键作用。相比之下，柠檬酸改性的 g-C3N4 在可见光照射下对全氟辛烷磺酸的去除效果不佳，即使添加了过一硫酸盐也是如此。黑暗条件下的进一步实验表明，混合光催化剂的表面吸附是完全去除 PFOA 的关键过程。总之，ZnO@柠檬酸改性氮化石墨碳纳米复合材料去除 PFOA 是吸附和光降解共同作用的结果，其中吸附是主要机制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Advanced Composites and Hybrid Materials Multiple-

CiteScore

26.00

自引率

21.40%

发文量

185

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. Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.