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Assessing the Adsorptive and Photodegradative Efficiencies of ZSM-11 Synthesized from Rice Husk Ash
Journal of Chemistry ( IF 3 ) Pub Date : 2020-09-09 , DOI: 10.1155/2020/6094126
Michael Akrofi Anang 1 , Ruphino Zugle 2 , Baah Sefa-Ntiri 3
Affiliation  

Rice husk was used to synthesize zeolite (ZSM-11). FTIR and X-ray diffraction methods were used to characterize the product. The synthesized zeolite was used to treat underground water from some communities in Cape Coast considering parameters such as total dissolved solids, total hardness, conductivity, nitrate, and phosphate. The percentage reduction in was 96.1% in Ebubonko and 92.5% in Apewosika. Similarly, the levels also decreased significantly in Kwaprow. The adsorption capability was also determined by using it to remove Pb2+ and Zn2+ from laboratory prepared solutions with varying masses. The percentage reduction recorded 90.57% and 86.61% for the 1.0 g whilst the 1.5 g showed 93.26% and 89.36%, respectively. It was also realized that the adsorption process followed a pseudo-first-order rather than the pseudo-second-order process with their R2 values of 0.9929 and 0.8503 for the pseudo-first-order and 0.9662 and 0.6912 for the second-order for Pb2+ and Zn2+, respectively. The adsorption capacity also favored the Freundlich isotherm with R2 values of 0.7578 and 0.642 rather than Langmuir isotherm with R2 values of 0.1742 and 0.3856 for Pb2+ and Zn2+, respectively. The photodegradation ability of the synthesized zeolite was analyzed using rhodamine blue (RhB) and methyl orange (MO). The process was realized to favor the pseudo-second-order with R2 values of 0.9986 and 0.0007 and a constant K2 of 0.035 and 0.021 for RhB and MO, respectively, whereas the pseudo-first-order showed an R2 value of 0.9376 and 0.9757 with K1 values of 0.03 and 0.02.

中文翻译:

评估从稻壳灰合成的 ZSM-11 的吸附和光降解效率

稻壳用于合成沸石(ZSM-11)。FTIR 和 X 射线衍射方法用于表征产物。考虑到总溶解固体、总硬度、电导率、硝酸盐和磷酸盐等参数,合成沸石用于处理来自海岸角一些社区的地下水。Ebubonko 和 Apewosika 的减少百分比分别为 96.1% 和 92.5%。同样,Kwaprow 的水平也显着下降。吸附能力还通过使用它从实验室制备的不同质量的溶液中去除 Pb2+ 和 Zn2+ 来确定。1.0 g 的百分比减少记录为 90.57% 和 86.61%,而 1.5 g 分别显示为 93.26% 和 89.36%。还认识到吸附过程遵循伪一级而不是伪二级过程,其 R2 值为 0.9929 和 0.8503 为准一级和 0.9662 和 0.6912 为二阶 Pb2+和 Zn2+,分别。吸附容量也有利于 Freundlich 等温线,其 R2 值为 0.7578 和 0.642,而不是 Langmuir 等温线,Pb2+ 和 Zn2+ 的 R2 值分别为 0.1742 和 0.3856。使用罗丹明蓝 (RhB) 和甲基橙 (MO) 分析合成沸石的光降解能力。该过程被实现为有利于伪二阶,R2 值为 0.9986 和 0.0007,RhB 和 MO 的常数 K2 分别为 0.035 和 0.021,而伪一阶显示 R2 值为 0.9376 和 0.9757, K1 值为 0.03 和 0.02。
更新日期:2020-09-09
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