光催化
材料科学
亚甲蓝
水溶液
X射线光电子能谱
降级(电信)
化学工程
高分辨率透射电子显微镜
异质结
复合数
核化学
傅里叶变换红外光谱
催化作用
光化学
纳米技术
复合材料
化学
有机化学
透射电子显微镜
光电子学
计算机科学
工程类
电信
作者
Amandeep Kaur,Sushil Kumar Kansal
出处
期刊:Chemosphere
[Elsevier]
日期:2024-02-01
卷期号:349: 140862-140862
标识
DOI:10.1016/j.chemosphere.2023.140862
摘要
Herein, we synthesized a Bi2O2.33/Bi2WO6 heterostructure as a platform for the degradation of methylene blue (MB) dye in an aqueous phase. The heterostructure was synthesized by facile ultrasonicated assisted solvothermal method. Various structural, morphological and other techniques such as XRD, FTIR, PL, EIS, UV-DRS, FESEM, HRTEM, XPS, EPR, TGA, BET surface area were used to analyze the characteristics of as-synthesized Bi2O2.33/Bi2WO6. The morphological studies revealed the deposition of Bi2O2.33 flowers in high density on Bi2WO6. Under solar irradiation, 98.6% degradation of MB was achieved in 190 min at optimal conditions (pH = 5, catalyst dose = 0.35 gL-1 and MB concentration = 10 mgL−1). The improved photocatalytic ability of composite in contrast to Bi2O2.33 and Bi2WO6 could be usually ascribed to the interface created between them, assisting the charge transfer. Based on the findings of radical trapping experiments, the charge transfer process over the photocatalyst was completely studied. Additionally, the present heterostructure demonstrated good recyclability over five runs. In nutshell, this study provided a facile approach for synthesizing solar light driven photocatalyst for degradation of methylene blue in aqueous phase and can further explored to be utilized for varied environmental remediation.
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