Masoud Hosseini, Mojgan Ghanbari, Makarim A. Mahdi, Mohammed H. Almaamori, Zainab Abbas Abd Alhassan, Masoud Salavati-Niasari
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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 (<i>k</i> = 0.0166 min<sup>‒1</sup>) leads to higher efficiency (90.0%). The combination of CSO and CN as composites shows great potential for efficient photocatalytic dye degradation applications. 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引用次数: 0
摘要
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。
Dicobalt orthosilicate-graphitic carbon nitride nanocomposites as promising visible-light nanocatalysts for removal of water-soluble organic dyes
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.