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Degradation of Diazinon from aqueous solution using Silver-modified Clinoptilolite Zeolite in photocatalytic process

机译:银修饰的斜发沸石在光催化下从水溶液中降解二嗪农

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photocatalytic reactor was tested in the degradation of diazinon in water using photocatalyst clinoptilolite zeolite-silver. The photocatalyst clinoptilolite zeolite-silver was synthesized using a microwave energy technique. The in?uence of AgO in the photocatalytic reactor was investigated for diazinon treatment. The prepared photocatalyst was authenticated by X-Ray Diffraction (XRD), for Field Emission Scanning Electron Microscope (FESEM), Brunner-Emmet-Teller (BET), and Diffuse Reflectance Spectroscopy (DRS) analysis methods. Every one of the mixtures was analyzed using XRD, and the three distinctive peaks (2? = 9.84, 11.17, and 22.35) of clinoptilolite were chosen for which the calculations of the peak intensity summation were done. The experiments appraised the influence of various empirical factors, e.g., pH, photocatalyst dosage, initial diazinon, and irradiation time on the degradation ef?ciency. The results showed that the optimum conditions for diazinon degradation were a pH of 9, photocatalyst dosage of 1 g/L and irradiation time of 120 min. The point of zero charge (pzc) of the photocatalyst clinoptilolite zeolite-silver, the point when the surface charge density is zero, was identified to be 8. This excellent catalytic ability was mainly attributed to the hybrid effect of the photocatalyst and adsorbent.
机译:使用光催化剂斜发沸石沸石-银测试了光催化反应器在水中二嗪农的降解。使用微波能量技术合成了光催化剂斜发沸石沸石-银。研究了AgO在光催化反应器中对二嗪农处理的影响。所制备的光催化剂通过X射线衍射(XRD)进行了鉴定,适用于场发射扫描电子显微镜(FESEM),Brunner-Emmet-Teller(BET)和扩散反射光谱(DRS)分析方法。用X射线衍射分析每种混合物,并选择斜发沸石的三个不同的峰(2α= 9.84、11.17和22.35),对它们进行峰强度总和的计算。实验评估了各种经验因素,例如pH,光催化剂用量,初始二嗪农和辐照时间对降解效率的影响。结果表明,二嗪农酮降解的最佳条件是pH为9,光催化剂用量为1 g / L,辐照时间为120 min。光催化剂斜发沸石沸石-银的零电荷点(pzc),当表面电荷密度为零时,被确定为8。这种优异的催化能力主要归因于光催化剂和吸附剂的混合作用。

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