Xinyuan Zhang, Xuan Xu, Chenyu Li, Lin Dai, Zhenxin Hao, Jie Yu, Haodong He, Chuanling Si, Zhiqiang Shen, Zhigang Qiu, Jingfeng Wang
{"title":"Metal-free graphitic carbon nitride/black phosphorus quantum dots heterojunction photocatalyst for the removal of ARG contamination","authors":"Xinyuan Zhang, Xuan Xu, Chenyu Li, Lin Dai, Zhenxin Hao, Jie Yu, Haodong He, Chuanling Si, Zhiqiang Shen, Zhigang Qiu, Jingfeng Wang","doi":"10.1007/s42114-023-00717-1","DOIUrl":null,"url":null,"abstract":"<div><p>Antibiotic resistant bacteria (ARB) and antibiotic resistance genes (ARGs) have become hot topics in the field of water purification. In this paper, graphite carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) and black phosphorus quantum dots (BPQDs) were used as raw materials to fabricate a non-metallic heterojunction composite photocatalyst (H-g-C<sub>3</sub>N<sub>4</sub>/BPQDs) by hydrothermal impregnation, high-temperature calcination, and ice-assisted ultrasound. The H-g-C<sub>3</sub>N<sub>4</sub>/BPQDs was used to remove antibiotics and biological pollution from water under visible light irradiation. Based on the porous structure and high specific surface area of H-g-C<sub>3</sub>N<sub>4</sub>, the obtained type II heterojunction structure promoted the absorption of visible light, accelerated the interfacial charge transfer, and inhibited the recombination of photogenerated electron–hole pairs. Under visible light irradiation, the degrading efficiency of TC by H-g-C<sub>3</sub>N<sub>4</sub> /BPQDs exceeded 91% in 30 min, and <i>E. coli K12 M1655</i> can be completely inactivated in 4 h. In addition, the maximum inactivation rate of H-g-C<sub>3</sub>N<sub>4</sub> /BPQDs for <i>E. coli HB101(RP4)</i> was 99.99% in 4 h, and the degradation efficiency of RP4 was more than 85%. This study provides not only a new idea for the design of green g-C<sub>3</sub>N<sub>4</sub>-based non-metallic heterojunction photocatalysts but also a broad prospect for the application of g-C<sub>3</sub>N<sub>4</sub>-based photocatalysts for the removal of ARGs in water treatment.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":null,"pages":null},"PeriodicalIF":23.2000,"publicationDate":"2023-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-023-00717-1.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/s42114-023-00717-1","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
Antibiotic resistant bacteria (ARB) and antibiotic resistance genes (ARGs) have become hot topics in the field of water purification. In this paper, graphite carbon nitride (g-C3N4) and black phosphorus quantum dots (BPQDs) were used as raw materials to fabricate a non-metallic heterojunction composite photocatalyst (H-g-C3N4/BPQDs) by hydrothermal impregnation, high-temperature calcination, and ice-assisted ultrasound. The H-g-C3N4/BPQDs was used to remove antibiotics and biological pollution from water under visible light irradiation. Based on the porous structure and high specific surface area of H-g-C3N4, the obtained type II heterojunction structure promoted the absorption of visible light, accelerated the interfacial charge transfer, and inhibited the recombination of photogenerated electron–hole pairs. Under visible light irradiation, the degrading efficiency of TC by H-g-C3N4 /BPQDs exceeded 91% in 30 min, and E. coli K12 M1655 can be completely inactivated in 4 h. In addition, the maximum inactivation rate of H-g-C3N4 /BPQDs for E. coli HB101(RP4) was 99.99% in 4 h, and the degradation efficiency of RP4 was more than 85%. This study provides not only a new idea for the design of green g-C3N4-based non-metallic heterojunction photocatalysts but also a broad prospect for the application of g-C3N4-based photocatalysts for the removal of ARGs in water treatment.
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.