Facile synthesis and characterization of magnesium and manganese mixed oxides for the efficient removal of tartrazine dye from aqueous media

Abstract

Nanomaterials are the most effective class of substances for use as adsorbents in wastewater treatment.

Efficient Disposal of Basic Fuchsin Dye from Aqueous Media Using ZrO2/MgMn2O4/Mg(Mg0.333Mn1.333)O4 as a Novel and Facilely Synthesized Nanocomposite

“…Figure 5A-C illustrates the nitrogen adsorption/desorption curves of the KE, KE500, and KE700 products, respectively. Furthermore, the obtained findings confirmed that the isotherms correspond to the IV-type isotherm, which shows the mesoporous nature of the products [16]. The surface textures, for example, BET surface area, average pore size, and total pore volume, are listed in Table 2.…”

“…If pH < pHPZC, the medium works to surround the surface of the KE, KE500, and KE700 adsorbents with positive hydrogen ions that are repellent with positively charged BFD dye, as displayed in Scheme 1, and hence reduce the uptake efficacy and uptake capability [16]. If pH > pHPZC, the medium works to surround the surface of the KE, KE500, and KE700 adsorbents with negative hydroxide ions that a ract the positively charged BFD dye, as displayed in Scheme 1, and hence enhance the uptake efficacy and uptake capability [16]. In order to study the stability of the KE, KE500, and KE700 samples at different pH values (2.5-8.5), the XRD of the synthesized adsorbents was carried out at these pH values (figures omi ed for brevity).…”

“…Utilizing advanced oxidation processes, photocatalytic degradation, membrane filtration, enzyme degradation, coagulation/flocculation, and adsorption techniques [6][7][8][9][10][11][12][13][14][15], organic dyes have been decontaminated. Among these approaches, the adsorption technique was widely utilized as a cost-effective and simple procedure for water remediation [16][17][18][19][20][21]. Basic fuchsin dye (BFD), also known as basic violet 14, is a cationic dye exploited to color textile, leather, and silk products.…”

“…After that, esterification occurs through the interaction of the carboxylic group of citric acid with the hydroxyl group of ethylene glycol to produce a three-dimensional network. Moreover, the solvent is evaporated, and the resulting gel is calcinated at a moderate temperature to get rid of the organic part and obtain nanomaterials [16]. So, in the present work, amorphous and crystalline novel adsorbents based on Zr, Mg, and Mn were facilely created using the Pechini sol-gel procedure for the efficient disposal of basic fuchsin dye from aqueous solutions.…”

Significant photocatalytic decomposition of malachite green dye in aqueous solutions utilizing facilely synthesized barium titanate nanoparticles

“…Ren et al synthesized electrospun fiber of BaTiO 3 /ZnO heterostructures using a combination of hydrothermal and electrospinning processes, and photocatalytic activities were investigated by the degradation of methyl orange dye [ 54 ]. The Pechini sol–gel process is a versatile and commonly used technique for the synthesis of a diverse range of nanomaterials such as Mn 0.5 Zn 0.5 Fe 2 O 4 /Fe 2 O 3 , MgMn 2 O 4 /Mn 2 O 3 , Fe 0.5 Mn 0.5 Co 2 O 4 /Fe 2 O 3 , MgMn 2 O 4 /Mn 2 O 3 /Mg 6 MnO 8 , and MgFe 2 O 4 [ 46 , 55 , 56 ]. In this work, barium titanate (BaTiO 3 ) nanoparticles with low crystallite sizes and different morphologies were facilely synthesized using the Pechini sol–gel technique.…”