Effect of multi-walled carbon nanotubes on the visible light photocatalytic activity of AgInS2 for Rhodamine B degradation

罗丹明B 光催化 X射线光电子能谱 可见光谱 材料科学 高分辨率透射电子显微镜 碳纳米管 纳米复合材料 光致发光 漫反射红外傅里叶变换 化学工程 光谱学 降级(电信) 光化学 透射电子显微镜 纳米技术 核化学 催化作用 化学 有机化学 光电子学 电信 物理 量子力学 计算机科学 工程类
作者
Jianyun Yang,Xinyue Gu,Liqiong Yang,Minghua Li,Ya Yan,Ye Zhang
出处
期刊:Diamond and Related Materials [Elsevier]
卷期号:141: 110682-110682 被引量:3
标识
DOI:10.1016/j.diamond.2023.110682
摘要

Visible-light responsive AgInS2 (AIS) nanoparticles modified with either pristine multi-walled carbon nanotubes (p-MWCNTs) or mixed-acid (H2SO4 and HNO3) oxidized multi-walled carbon nanotubes (o-MWCNTs) were synthesized using a low-temperature liquid phase method. The resulting nanocomposites are denoted as p-MWCNTs/AIS or o-MWCNTs/AIS. The structure, morphology, and optical properties of the samples were characterized using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), high-resolution transmission electron microscopy (HRTEM), photoluminescence spectroscopy (PL), and ultraviolet-visible diffuse reflectance spectroscopy (UV–Vis DRS). The photocatalytic activity of p/o-MWCNTs/AIS towards the degradation of Rhodamine B (RhB) was investigated, and the optimal proportion of p/o-MWCNTs introduced on AIS was determined. A possible degradation mechanism of RhB over p/o-MWCNTs/AIS was proposed. The results demonstrated that p/o-MWCNTs were successfully incorporated into AIS, and the addition of an appropriate amount of p/o-MWCNTs improved the visible-light photocatalytic activity of AIS. Among the samples, 2 % o-MWCNTs/AIS exhibited the highest visible-light catalytic activity, achieving a degradation efficiency of 95 % within 40 min. The·⋅O2− species were identified as the main active species during the photocatalytic degradation process. The introduction of o-MWCNTs not only facilitated the separation of photogenerated electron-hole pairs (e−/h+) in AIS but also enhanced the visible-light absorption of AIS, leading to a significant improvement in its photocatalytic performance. Furthermore, the incorporation of o-MWCNTs greatly enhanced the cycling stability of AIS for reuse.

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
跳跃发布了新的文献求助10
1秒前
持卿应助宗磬采纳,获得20
1秒前
1秒前
花生油炒花生米完成签到 ,获得积分10
1秒前
Riki完成签到,获得积分10
3秒前
虚幻白玉发布了新的文献求助10
3秒前
德行天下完成签到,获得积分10
3秒前
Jenny应助lan采纳,获得10
4秒前
fztnh完成签到,获得积分10
4秒前
上官若男应助lyz666采纳,获得10
4秒前
顾念完成签到 ,获得积分10
4秒前
277发布了新的文献求助10
5秒前
小二郎应助GCD采纳,获得10
6秒前
hhhhhh完成签到 ,获得积分10
6秒前
甜味拾荒者完成签到,获得积分10
8秒前
小二郎应助BONBON采纳,获得10
8秒前
9秒前
charllie完成签到 ,获得积分10
9秒前
空禅yew完成签到,获得积分10
10秒前
坚强亦丝应助跳跃采纳,获得10
12秒前
英俊的铭应助cc采纳,获得10
12秒前
huangsan完成签到,获得积分10
12秒前
匹诺曹完成签到,获得积分10
12秒前
13秒前
华仔应助进取拼搏采纳,获得10
13秒前
14秒前
dingdong发布了新的文献求助10
14秒前
you完成签到 ,获得积分10
15秒前
qwf完成签到 ,获得积分10
15秒前
16秒前
万能图书馆应助一一采纳,获得10
16秒前
执着跳跳糖完成签到 ,获得积分10
17秒前
阳yang完成签到,获得积分10
17秒前
牛头人完成签到,获得积分10
17秒前
18秒前
Rrr发布了新的文献求助10
18秒前
19秒前
19秒前
serenity完成签到 ,获得积分10
19秒前
Benliu完成签到,获得积分10
19秒前
高分求助中
Continuum Thermodynamics and Material Modelling 3000
Production Logging: Theoretical and Interpretive Elements 2700
Social media impact on athlete mental health: #RealityCheck 1020
Ensartinib (Ensacove) for Non-Small Cell Lung Cancer 1000
Unseen Mendieta: The Unpublished Works of Ana Mendieta 1000
Bacterial collagenases and their clinical applications 800
El viaje de una vida: Memorias de María Lecea 800
热门求助领域 (近24小时)
化学 材料科学 生物 医学 工程类 有机化学 生物化学 物理 纳米技术 计算机科学 内科学 化学工程 复合材料 基因 遗传学 物理化学 催化作用 量子力学 光电子学 冶金
热门帖子
关注 科研通微信公众号,转发送积分 3527961
求助须知:如何正确求助?哪些是违规求助? 3108159
关于积分的说明 9287825
捐赠科研通 2805882
什么是DOI,文献DOI怎么找? 1540070
邀请新用户注册赠送积分活动 716926
科研通“疑难数据库(出版商)”最低求助积分说明 709808