GREEN SYNTHESIS AND CHARACTERIZATION OF CODOPED ZnO NANOPARTICLES VIA THE ACCUMULATION OF COBALT ION ONTO PISTIA (Pistia stratiotes L.,) PLANT TISSUE AND ITS PHOTOCATALYTIC ACTIVITY TOWARD ORGANOSULFUR POLLUTANTS

IF 0.5 Q4 EDUCATION & EDUCATIONAL RESEARCH

Rasayan Journal of Chemistry Pub Date : 2023-01-01 DOI:10.31788/rjc.2021.1618165

N. Rani, P. Pavani, Chebolu Naga Sesha Sai Pavan Kumar, Satwinder Singh Marok, S. Tulasi

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引用次数: 0

Abstract

Water pollution has recently become a serious global problem and hence researchers were focusing to develop innovative methods for the purification of water and then getting access to purified water by reducing pollution. As a result, the current study concentrated on synthesizing cobalt-doped zinc oxide nanoparticles by accumulating cobalt ions on Pistia (Pistiastratiotes L.) plant tissue and combining them with zinc acetate precursor. Further, the synthesized particles were analyzed for their efficiency in photo-desulphurization of organo sulphur compounds such as Dibenzothiophene and 2,5-dimethyl thiophene. Various characterization studies proved that the nanoparticles were oval in shape and had particle sizes of 8-34 nm and the particles were distributed with less aggregation. The particles have 47 % of zinc element and 21% cobalt with hexagonal (wurtzite) crystalline structure. The synthesized Co-doped ZnO nanoparticles were utilized for the desulfurization of Sulphur containing pollutants such as dibenzothiophene and 2,5-dimethyl thiophene. The results proved that rapid desulfurization was observed during the initial time of the study. The % desulfurization of 14.36±0.136 and 19.63±0.201% was observed within 5 min of the study for dibenzothiophene and 2,5-dimethyl thiophene. Whereas the high % desulfurization was noticed within less time of 25 min wherein the % desulfurization was observed to be 95.61±0.279 and 93.66±0.137 for dibenzothiophene and 2,5-dimethyl thiophene respectively. The removal of harmful heavy metals utilizing the Pistia plant and recycling in the wastewater treatment process may therefore be inferred as being highly valued. Additionally, the Co-doped ZnO photocatalysts might improve photocatalytic activity owing to the catalysts' porosity and the hole recombination and electron suppression.

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绿色合成、钴离子富集共掺杂氧化锌纳米粒子及其对有机硫污染物的光催化活性研究

近年来，水污染已成为一个严重的全球性问题，因此研究人员致力于开发创新的水净化方法，然后通过减少污染来获得纯净水。因此，目前的研究主要集中在通过在Pistia (Pistiastratiotes L.)植物组织中积累钴离子并将其与醋酸锌前体结合来合成钴掺杂氧化锌纳米颗粒。此外，还分析了合成颗粒对有机硫化合物(如二苯并噻吩和2,5-二甲基噻吩)的光脱硫效率。各种表征研究表明，纳米颗粒呈椭圆形，粒径在8 ~ 34 nm之间，颗粒聚集较少。颗粒中含有47%的锌元素和21%的钴元素，具有六方(纤锌矿)晶体结构。合成的共掺杂ZnO纳米粒子用于二苯并噻吩和2,5-二甲基噻吩等含硫污染物的脱硫。结果表明，在研究初期，脱硫速度较快。二苯并噻吩和2,5-二甲基噻吩在5 min内脱硫率分别为14.36±0.136和19.63±0.201%。二苯并噻吩的脱硫率为95.61±0.279,2,5-二甲基噻吩的脱硫率为93.66±0.137，脱硫时间较短，仅为25 min。因此，可以推断，利用Pistia工厂去除有害重金属和在废水处理过程中进行回收是非常有价值的。此外，共掺杂ZnO光催化剂由于其多孔性、空穴复合和电子抑制而提高了光催化活性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Rasayan Journal of Chemistry Energy-Energy (all)

CiteScore

1.90

自引率

0.00%

发文量

196

期刊介绍： RASĀYAN Journal of Chemistry [RJC] signifies a confluence of diverse streams of chemistry to stir up the cerebral powers of its contributors and readers. By introducing the journal by this name, we humbly intent to provide an open platform to all researchers, academicians and readers to showcase their ideas and research findings among the people of their own fraternity and to share their vast repository of knowledge and information. The journal seeks to embody the spirit of enquiry and innovation to augment the richness of existing chemistry literature and theories. We also aim towards making this journal an unparalleled reservoir of information and in process aspire to inculcate and expand the research aptitude.