Hydrothermal synthesis of BCQD@g-C3N4 nanocomposites supporting environmental sustainability: Organic dye removal and bacterial inactivation

IF 5.4 Q2 ENGINEERING, ENVIRONMENTAL Journal of hazardous materials advances Pub Date : 2024-09-07 DOI:10.1016/j.hazadv.2024.100464
{"title":"Hydrothermal synthesis of BCQD@g-C3N4 nanocomposites supporting environmental sustainability: Organic dye removal and bacterial inactivation","authors":"","doi":"10.1016/j.hazadv.2024.100464","DOIUrl":null,"url":null,"abstract":"<div><p>Various studies are being carried out on the removal of organic dyes and the production of antibacterial agents. In this study, boron-doped carbon quantum dot (BCQD) was synthesized by hydrothermal method, and BCQD@g-C<sub>3</sub>N<sub>4</sub> nanocomposite structure was synthesized using graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) as the support material. The photocatalytic activity of the synthesized nanocomposite against MO, RhB dyes, and <em>Escherichia coli</em> (<em>E. coli</em>) bacteria was investigated. The surface, morphology, molecular, and crystal properties of BCQD@g-C<sub>3</sub>N<sub>4</sub> were investigated using characterization methods such as Transmission electron microscopy (TEM), Fourier Transform Infrared Spectroscopy (FTIR), Fluorescence (FL) spectrophotometer, and X-ray diffraction (XRD). As a result of TEM analysis, it was determined that the average particle size of BCQD was 5.1 ± 1.14 nm and showed a homogeneous distribution on 2D g-C<sub>3</sub>N<sub>4</sub>. In the XRD spectrum for BCQDs, the diffraction peak corresponding to the (002) amorphous carbon phase was observed at 21.65° In the PL spectrum of B-CQD@g-C<sub>3</sub>N<sub>4</sub>s, the emission value was observed at 458 nm. In the study conducted by taking advantage of the photocatalytic feature of BCQD@g-C<sub>3</sub>N<sub>4</sub> nanocomposite, Rhodamine B (RhB) and Methyl orange (MO) were degraded by 65.58 % and 73.56 %, respectively, at the end of 120 min. Additionally, BCQD@g-C<sub>3</sub>N<sub>4</sub> photocatalyst completely inhibited the growth of <em>E. coli</em> bacteria, which are frequently encountered in wastewater, at 90 minutes under sunlight. <em>Escherichia coli</em> (<em>E. coli</em>), which is frequently encountered in wastewater, BCQD@g-C<sub>3</sub>N<sub>4</sub> completely prevented bacterial growth in the 90<sup>th</sup> minute under sunlight.</p></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":null,"pages":null},"PeriodicalIF":5.4000,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772416624000652/pdfft?md5=04df47d74dcb2e859f8610777d5f4cd7&pid=1-s2.0-S2772416624000652-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of hazardous materials advances","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2772416624000652","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
引用次数: 0

Abstract

Various studies are being carried out on the removal of organic dyes and the production of antibacterial agents. In this study, boron-doped carbon quantum dot (BCQD) was synthesized by hydrothermal method, and BCQD@g-C3N4 nanocomposite structure was synthesized using graphitic carbon nitride (g-C3N4) as the support material. The photocatalytic activity of the synthesized nanocomposite against MO, RhB dyes, and Escherichia coli (E. coli) bacteria was investigated. The surface, morphology, molecular, and crystal properties of BCQD@g-C3N4 were investigated using characterization methods such as Transmission electron microscopy (TEM), Fourier Transform Infrared Spectroscopy (FTIR), Fluorescence (FL) spectrophotometer, and X-ray diffraction (XRD). As a result of TEM analysis, it was determined that the average particle size of BCQD was 5.1 ± 1.14 nm and showed a homogeneous distribution on 2D g-C3N4. In the XRD spectrum for BCQDs, the diffraction peak corresponding to the (002) amorphous carbon phase was observed at 21.65° In the PL spectrum of B-CQD@g-C3N4s, the emission value was observed at 458 nm. In the study conducted by taking advantage of the photocatalytic feature of BCQD@g-C3N4 nanocomposite, Rhodamine B (RhB) and Methyl orange (MO) were degraded by 65.58 % and 73.56 %, respectively, at the end of 120 min. Additionally, BCQD@g-C3N4 photocatalyst completely inhibited the growth of E. coli bacteria, which are frequently encountered in wastewater, at 90 minutes under sunlight. Escherichia coli (E. coli), which is frequently encountered in wastewater, BCQD@g-C3N4 completely prevented bacterial growth in the 90th minute under sunlight.

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
水热合成支持环境可持续性的 BCQD@g-C3N4 纳米复合材料:去除有机染料和灭活细菌
目前正在就去除有机染料和生产抗菌剂开展各种研究。本研究采用水热法合成了掺硼碳量子点(BCQD),并以氮化石墨碳(g-C3N4)为支撑材料合成了 BCQD@g-C3N4 纳米复合结构。研究了合成的纳米复合材料对 MO、RhB 染料和大肠杆菌的光催化活性。利用透射电子显微镜(TEM)、傅立叶变换红外光谱(FTIR)、荧光分光光度计(FL)和 X 射线衍射(XRD)等表征方法研究了 BCQD@g-C3N4 的表面、形态、分子和晶体性质。TEM 分析结果表明,BCQD 的平均粒径为 5.1 ± 1.14 nm,在二维 g-C3N4 上呈均匀分布。在 BCQD 的 XRD 光谱中,与 (002) 无定形碳相对应的衍射峰位于 21.65°。利用 BCQD@g-C3N4 纳米复合材料的光催化特性进行的研究表明,在 120 分钟结束时,罗丹明 B(RhB)和甲基橙(MO)的降解率分别为 65.58% 和 73.56%。此外,BCQD@g-C3N4 光催化剂在 90 分钟的日光照射下完全抑制了废水中常见的大肠杆菌的生长。废水中常见的大肠杆菌(E. coli),BCQD@g-C3N4 在日光下第 90 分钟完全阻止了细菌的生长。
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 去求助
来源期刊
Journal of hazardous materials advances
Journal of hazardous materials advances Environmental Engineering
CiteScore
4.80
自引率
0.00%
发文量
0
审稿时长
50 days
期刊最新文献
Field versus laboratory measurements of PFAS sorption by soils and sediments Photocatalytic degradation of antibiotics in water via TiO2-x: Research needs for technological advancements Process optimization for silica dissolution from e-waste as a sustainable step towards bioremediation Human health risk assessment of metal contamination in cereals and pulses in the mica mining areas of Jharkhand, India Environmental risks of plastic losses from landfills: A comparative study of divisional cities in Bangladesh
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1