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首页> 外文会议>Symposium of Malaysian Chemical Engineers >Removal of Methylene Blue Dye from Aqueous Solution Using a Newly Synthesized TiO2-SiO2 Photocatalyst in the Presence of Active Chlorine Species
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Removal of Methylene Blue Dye from Aqueous Solution Using a Newly Synthesized TiO2-SiO2 Photocatalyst in the Presence of Active Chlorine Species

机译：在活性氯物种存在下使用新合成的TiO2-SiO2光催化剂从水溶液中除去亚甲基蓝色染料

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Industrialization and urbanization demand high amount of water consumption, which contributes to their polluted condition. Thus, there is a need to develop a sustainable wastewater remediation technique in order to provide sustainable use of clean water for future generations without ramifications to the economic sectors. The newly synthesized TiO2-SiO2 photocatalyst was used to remediate Methylene Blue contaminated aqueous solution in the presence of active chlorine species. The doping of SiO2 into TiO2 enhanced the removal rate of Methylene Blue dye from the solution by increasing the surface area, thermal stability and surface acidity of the TiO2. The active chlorine species further enhanced the removal rate of Methylene Blue dye from the solution by contributing more reactive species, chlorine radicals, which broke down the dye molecules. The experiments were conducted via Taguchi analysis. The findings show that combining TiO2, SiO2 and active chlorine species enhanced the removal percentage of Methylene Blue dye compared to using TiO2 alone by 70%. About 70% of 50ppm Methylene Blue was degraded by 1 g of TiO2-SiO2 in the presence of 0.3 ppm Ca(OCl)2 under 9 Watts solar irradiation within 3 hours. The enhanced dye removal method brings photocatalysis a step closer to sustainable wastewater remediation methods.
机译：工业化和城市化需求大量的耗水量，这有助于其污染情况。因此，需要开发可持续的废水修复技术，以便为后代提供可持续使用的清水，而不会对经济部门进行后期。新合成的TiO2-SiO 2光催化剂用于在活性氯物质存在下修复亚甲基蓝色污染的水溶液。通过增加TiO 2的表面积，热稳定性和表面酸度，SiO 2进入TiO 2的掺杂增强了甲基蓝色染料的去除率。活性氯物种通过促进更多的反应性物种，氯自由基致滴落在染料分子中，进一步增强了甲基蓝色染料的去除率。通过Taguchi分析进行实验。结果表明，与单独使用TiO 2相比，组合TiO 2，SiO 2和活性氯物种增强了亚甲基蓝染料的去除百分比。在3小时内在9瓦太阳照射下的0.3ppm Ca（OCL）2下，约70ppm亚甲基蓝色的50ppm亚甲基蓝色的1g TiO 2 -SiO 2降低。增强型染料去除方法使光催化分析较近可持续废水修复方法的步骤。

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