Investigation of transition metal-doped graphitic carbon nitride for MO dye degradation

光催化 石墨氮化碳 可见光谱 材料科学 降级(电信) 兴奋剂 催化作用 光降解 载流子 化学工程 光化学 化学 冶金 光电子学 有机化学 电信 工程类 计算机科学
作者
Asif Hussain,Samayya Maqsood,Renlong Ji,Qikai Zhang,M. Umer Farooq,Muhammad Waseem Boota,M. Umer,M. Hashim,Hamza Naeem,Zaigham Saeed Toor,Asghar Ali,Jianhua Hou,Yuxiong Xue,Xiaozhi Wang
出处
期刊:Diamond and Related Materials [Elsevier BV]
卷期号:132: 109648-109648 被引量:11
标识
DOI:10.1016/j.diamond.2022.109648
摘要

Graphitic carbon nitride (g-C3N4) has received significant attention recently as a metal-free and visible-light responsive photo-catalyst because of its exceptional photocatalytic activity. The separation and transit efficiency of the photo-generated charge carriers determines the photocatalytic effectiveness of g-C3N4 and g-C3N4-based materials for contaminant degradation. Therefore, pure g-C3N4 typically shows low impact. Herein, metal-doped (Copper (Cu), Manganese (Mn), and Zinc (Zn)) g-C3N4 is synthesized by an easy high-temperature process to enhance the performance of g-C3N4. The XRD, SEM, UV–vis DRS, measurements, photocatalytic testing, etc. are used to describe and evaluate the synthesized materials. As a result, metal-doped photo-catalysts exemplified improved visible-light photocatalytic activities for pollutants degradation with the benefits of reduced band gaps for prolonged visible-light absorption, and improved electronic structures for effective charge transfer. The Zn-doped g-C3N4 in particular exhibited efficient use of photo-generated electron-hole charge carriers during the pollutant degradation process due to the excellent tailoring, including both electronic structure and microstructures. As a result, the Zn-doped g-C3N4 photo-catalyst exhibits the highest photocatalytic performance for Methyl Blue (MO) dye degradation. During the degradation process of the samples, i.e. (g-C3N4, Cu-g-C3N4, Mn-g-C3N4, and Zn-g-C3N4) the MO degradation rate is achieved, such as 40 %, 60 %, 80 %, and 90 %, respectively. Additionally, the main areas of investigation are the photo-degradation of MO dye and the photo-catalytic mechanism.
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