Dicobalt orthosilicate-graphitic carbon nitride nanocomposites as promising visible-light nanocatalysts for removal of water-soluble organic dyes

IF 5.7 3区 环境科学与生态学 Q1 WATER RESOURCES
Masoud Hosseini, Mojgan Ghanbari, Makarim A. Mahdi, Mohammed H. Almaamori, Zainab Abbas Abd Alhassan, Masoud Salavati-Niasari
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引用次数: 0

Abstract

This paper reports the preparation of cobalt silicate (Co2SiO4, CSO) first by a cost-effective and simple sonochemical route, followed by the fabrication of Co2SiO4/g-C3N4 (CSO/CN) nanocomposites with different mass ratios by ultrasonic-assisted co-precipitation. We have investigated the photocatalytic performance of Co2SiO4, g-C3N4, and different Co2SiO4/g-C3N4 nanocomposites for the degradation of eriochrome black T (EB). This initial instance of CSO integrated with CN demonstrates a superior function in photocatalysis. The outcomes indicated that multiple parameters affected effectiveness, including the amount of CSO, catalyst, and EB. As a result, CSO/CN with a weight ratio of 0.1:1 is the most efficient, which means that 0.07 g of CSO/CN (0.1:1) is capable of degrading 90.0% of 10 ppm EB. Photodegradation reactions were demonstrated by the scavenger tests to be largely influenced by superoxide radicals. The kinetic investigation showed that a bigger rate constant (k = 0.0166 min‒1) leads to higher efficiency (90.0%). The combination of CSO and CN as composites shows great potential for efficient photocatalytic dye degradation applications. Advanced materials for environmental treatment procedures may be developed as a result of further research and development in this field.

正硅酸二钴-石墨氮化碳纳米复合材料作为可见光纳米催化剂去除水溶性有机染料的前景
本文首先采用一种经济、简单的声化学方法制备了硅酸钴(Co2SiO4, CSO),然后采用超声辅助共沉淀法制备了不同质量比的Co2SiO4/g-C3N4 (CSO/CN)纳米复合材料。研究了Co2SiO4、g-C3N4和不同的Co2SiO4/g-C3N4纳米复合材料对铬黑T (EB)的光催化性能。这个CSO与CN结合的初始实例显示了其优越的光催化功能。结果表明,影响效果的参数包括CSO、催化剂和EB的用量。因此,重量比为0.1:1的CSO/CN效率最高,这意味着0.07 g CSO/CN(0.1:1)能够降解10 ppm的90.0%的EB。清除剂试验表明,光降解反应在很大程度上受超氧自由基的影响。动力学研究表明,反应速率常数(k = 0.0166 min-1)越大,反应效率越高(90.0%)。CSO和CN复合材料在光催化降解染料方面具有很大的应用潜力。随着这一领域的进一步研究和发展,可能会开发出用于环境处理程序的先进材料。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Applied Water Science
Applied Water Science WATER RESOURCES-
CiteScore
9.90
自引率
3.60%
发文量
268
审稿时长
13 weeks
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