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Wastewater Purification from Permanganate Ions by Sorption on the Ocimum basilicum Leaves Powder Modified by Zinc Chloride
Journal of Chemistry ( IF 2.8 ) Pub Date : 2021-07-22 , DOI: 10.1155/2021/5561829
Nasser A. Alamrani 1 , Hatem A. Al-Aoh 1 , Meshari M. H. Aljohani 1 , Suhair A. Bani-Atta 1 , M. Sobhi 1, 2 , Mustafa Syed Khalid 1 , A. A. A. Darwish 3, 4 , Ali A. Keshk 1 , Mona A. A. Abdelfattah 5
Affiliation  

The powder of Ocimum Basilicum leaves was treated by zinc chloride (ZnCl2) and applied as a new and low-cost sorbent for extraction of permanganate anions (MnO4) from liquid phase. The functional groups of the ring stretching vibration, –NH2 deformation, stretching of C-O, stretching of CH, and stretching of –NH were found in the sorbent of zinc chloride Ocimum basilicum leaves powder (ZCOBLP) at 1516.21, 1629.33, 1047.00, 2929.88, and 3294.93 cm−1, respectively. This adsorbent has 8.3 pHZPC, 117.27 m2·g−1 surface area, 0.00711 cc·g−1 pore volume and average pore diameter of 264.144 Å. The outcomes of sorption experiments designate the positive impact for temperature, time of agitation, and started concentration of MnO4 and negative impact for pH. The optimal conditions were 1300 mg·L−1 as started adsorbate concentration, 55°C as solution temperature, agitation time of 420 min, and pH of 1.5. The outcomes of the equilibrium and dynamic approve that this sorption is spontaneous and heat-absorbing process, and the obtained data were described well by isotherm model of Langmuir and 2nd-order dynamic model. The capacities of this sorption were 588.235, 625.000, 666.667, and 714.286 mg·g−1 at 25, 35, 45, and 55 (°C), respectively. The superior sorption capacities of the uncostly ZCOBLP will make it successfully used for MnO4 ions extraction from liquid phases.

中文翻译:

氯化锌改性罗勒叶粉吸附净化高锰酸盐离子废水

罗勒叶粉末用氯化锌 (ZnCl 2 )处理,并作为一种新型低成本吸附剂用于从液相中提取高锰酸根阴离子 (MnO 4 - )。在1516.21, 1629.33, 1047.00, 2929.88的氯化锌罗勒叶粉(ZCOBLP)的吸附剂中发现了环伸缩振动、-NH 2变形、CO伸缩、CH伸缩和-NH伸缩的官能团和 3294.93 cm -1分别。该吸附剂具有 8.3 pHZPC,117.27 m 2 ·g -1表面积,0.00711 cc·g -1孔体积和平均孔径为 264.144 Å。吸附实验的结果表明对温度、搅拌时间和 MnO 4 - 的起始浓度的积极影响和对 pH 的消极影响。最佳条件为起始吸附物浓度为1300 mg·L -1,溶液温度为55°C,搅拌时间为420 min,pH值为1.5。平衡和动力学结果表明该吸附是自发吸热过程,得到的数据用朗缪尔等温线模型和二阶动力学模型很好地描述。这种吸附的容量为 588.235、625.000、666.667 和 714.286 mg·g -1分别在 25、35、45 和 55 (°C)。成本低廉的 ZCOBLP 卓越的吸附能力将使其成功用于从液相中提取MnO 4 -离子。
更新日期:2021-07-22
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