Synthesis of ternary nanocomposites of GO–MnO2@Tau and GO-MnO2@CA for efficient removal of dyes

Kuwait Journal of Science

article

Iram Bibi¹  Khalid Raza¹  Wajid Rehman¹  Siddiqa Begum¹  Magda H. Abdellatif²  Saz Muhammad²  Waqar Hussain Shah¹  Luqman A. Shah³  saira Bibi¹  Wajiha Khan⁴ 

[1] Dept. of Chemistry, Hazara University 21120;Dept. of Chemistry, College of Sciences, Taif University;National Centre of Excellence in Physical Chemistry, Peshawar University;Dept. of biotechnology COMSATS University Islamabad, Abbottabad campus

关键词: Bacterial strains;    graphene oxide–functionalized manganese dioxide;    manganesedioxide nanoparticles;    nanohybrids;    ternary;   

DOI  :  10.48129/kjs.19959

学科分类：社会科学、人文和艺术（综合）

来源: Kuwait University * Academic Publication Council

【 摘 要 】

Here, we report the facile route for the synthesis of graphene oxide–functionalized manganese dioxide (GO–MnO2@Tau (GMT) and GO-MnO2@CA) (GMC) nanohybrids and their use as adsorbents for removal of selected dyes from industrial effluents. These nanohybrids were also tested for antibacterial activity in wastewater. Manganese dioxide nanoparticles were synthesized by redox reaction between potassium permanganate (KMnO4) and manganese acetate (Mn(CH3COO)2.4H2O) and functionalized with taurine (H3N+CH2CH2SO3−) and caproic acid (CH3(CH2)8COOH) to produce MnO2@Tau and MnO2@CA. These functionalized-MnO2 ­were then exploited as reinforcement in graphene oxide (GO) to fabricate nanohybrids. The nanohybrids were characterized for their morphology, structure, crystallinity and thermal behavior by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infra-red (FTIR) spectroscopy, UV-Visible spectroscopy and thermogravimetric analysis (TGA). They were investigated for adsorptive removal of methylene blue and malachite green and effect of temperature and quantity of adsorbent were studied. The adsorption of both dyes followed pseudo first order kinetics. The antibacterial activity of GO-MnO2@Tau and GO-MnO2@CA nanohybrids were tested against two bacterial strains (Gram-negative E. coli, and the Gram-positive S. aureus) and the results revealed efficient inhibition of these pathogens.

【 授权许可】

Unknown