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Methylene Blue - Springer Nature

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Last Updated: 23 April 2022

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Mesoporous spongy Ni–Co oxides@wheat straw-derived SiO_2 for adsorption and photocatalytic degradation of methylene blue pollutants

One of the most cost-effective options is to involve agricultural waste mining and employing agricultural waste in polluted water treatment. Thus, a novel mesoporous spongy adsorbent/photocatalyst was successfully synthesized by the grafting of nickel and cobalt oxide nanocomposites with wheat straw-derived SiO_2. This synthesis method is a simple, cost-effective, and eco-approachable alternative to getting an adsorbent and photocatalytic degradation of methylene blue pollutants from wastewater that is both cost-effective and eco friendly. Molecular dynamics computational simulations were used to determine the ability of methylene blue to adjust the MWSS surface. The optimal removal conditions were as follows: pH 10, dose 50 mg, contact time 45 min, temperature 25 2 °C, and a UV lamp for photocatalytic degradation reactions. Besides, kinetics and isotherm models were tested to clarify the MB removal process using mesoporous spongy MWSS. This research found an effective composite that helps get rid of the MB contaminants from wastewater removal.

Source link: https://doi.org/10.1007/s13204-021-02318-0


Energetic influence of methylene blue on the electrochemical performance of activated carbon in a water-in-salt electrolyte

Capacity can reach 608 C g1 at 2 A g. 1, which is also at 10 A g1 at 10 A g1, indicating quick charging/discharging ability. The AC/MB's longevity is clearly higher than that of the pure AC, with 74% of the initial capacity remaining after 10,000 cycles' cycling at 10 A g1 for the AC/MB.

Source link: https://doi.org/10.1007/s11581-022-04513-7


Visible light-motivated photo-catalytic activity of CdS–Cu_9S_5 heterostructure for degradation of methylene blue

As-synthesized CdS and rhombohedral-structured Cu_9S_5 nanoparticles are composed of cubic CdS and rhombohedral structured Cu_9S_5 nanoparticles, according to a structural evaluation, as-synthesized CdS –Cu_9S_5 nanoparticles are made of cubic CdS and rhombohedral packed Cu_5 nanoparticlesynthesized Cu_Cu_5 nanoparticlesynthegraphic rho rhobelli5 nanoparticles are composed of Cu_5 nanoparticles Cu_5 nanoparticles_5 nanoparticles cu_5 nanoparticles rho rho6 nanoparticles_5 nanoparticles and rhombohedS_5 nanoparticles_5 nanoparticles Pure CdS has irregular shaped nanoparticles, but morphology is significantly different for the CdS–Cu_9S_5 sample. The higher photo-catalytic degradation rate is seen in comparison to pure CdS and Cu_9S_5, where approximately complete degradation of methylene blue dye is achieved under visible light irradiation is observed. This degradation reaction portrays pseudo first order kinetics, in addition, the influence of several parameters such as pH, catalyst amount, dye saturation, and the role of active species on the degradation kinetics are also investigated.

Source link: https://doi.org/10.1007/s13204-022-02357-1


Modification of TiO_2 with clam-shell powder for photodegradation of methylene blue

The wide usage of dyes has fueled this study, as a significant amount of methylene blue in water portrayed a potential danger to human well-being. TiO_2 powder composite has been successfully loaded into TiO_2 by hydrothermal process, resulting in TiO_2/Clam Shell powder composite to improve TiO_2's photodegradation results. It is found that a TiO_2/CS ratio of 4:1 is the most desirable composite component for obtaining the most efficient photodegradation process. TiO_2's loading has increased the visible light absorption by lowering the bandgap energy of TiO_2 from 3. 0 to 2. 2 eV and increasing specific surface area of TiO_2. In TiO_2, which served as support and electron trapper, the outstanding success of TiO_2 composite is attributed to the synergistic effect of CS loading.

Source link: https://doi.org/10.1007/s10971-022-05761-9


Adsorption of methylene blue onto synthesized Co_3O_4, NiO, CuO and ZnO nanoparticles

namine based metal complexes of Co, Ni, Cu, and Zn were synthesized and characterized by elemental research, IR, electronic spectra, thermographic measurements, nuclear magnetic resonance, electron spin resonance, and precise magnetic moments. After calcination at 700 °C, the as-prepared metal complexes were used as a precursor to Co_3O_4, NiO, CuO, and ZnO nanoparticles. The adsorption of methylene blue on the surface of Co_3O_4's NiO, CuO, and ZnO nanoparticles was investigated. The best models that suit the adsorption of methylene blue onto Co_3O_4, NiO, CuO, and ZnO nanoparticles are Langmuir's adsorption isotherm and pseudo-second-order kinetic.

Source link: https://doi.org/10.1007/s13738-021-02424-4


Fabrication and characterization of polymer based magnetic dialdehyde carboxymethyl cellulose/cysteine nanocomposites for methylene blue removal

A sorbent for the removal of cationic dye methylene blue from aqueous solution was successfully synthesized by a safe monomer and crosslinking agent, as a sorbent. The experimental results were found to be consistent with the pseudo-second-order kinetic scheme, which was found to match closely the pseudo-second-order kinetic model. The Fe_3O_4/DCMC/Cys nanocomposite with Fe_3O_4's magnetic property and excellent adsorption capability of cysteine amino acid was shown to be a promising and cost-effective adsorbent for the treatment of MB-contaminated water.

Source link: https://doi.org/10.1007/s00289-022-04210-5


The study of TiO_2/Cu_2O nanoparticles as an efficient nanophotocalyst toward surface adsorption and photocatalytic degradation of methylene blue

Herein, cost-effective TiO_2/Cu_2O nanoparticles were synthesized as a model organic dye, and as a model organic dye, so a cheap organic dye, methylene blue, was obtained as a model organic dye and applied-for-efficient photodegradation of methylene blue as a model organic dye. TiO_2/Cu_2O nanoparticles' high surface area, absorption, and photodegradation capabilities were evaluated toward MB degradation, resulting in a high adsorption yield of about 97% and a 100% photodegradation rate. TiO_2/Cu_2O nanoparticles exhibited adsorption and photodegradation yields that were compared to those of both Degussa p25 TiO_2O and Cu_2O nanoparticles, resulting in increased adsorption and photodegradation yields toward dye degradation in a colorless manner.

Source link: https://doi.org/10.1007/s13204-022-02474-x


Facile Synthesis of ZSM-5/TiO_2/Ni Novel Nanocomposite for the Efficient Photocatalytic Degradation of Methylene Blue Dye

Due to the harmful water pollution induced by effluent dyes, it is important to find a safe dye degrading process to protect the natural environment and human health. So, a ZSM-5/TiO_2/Ni photocatalyst was synthesized as a novel composite and used for degrading methylene blue dye in the solution in this work. On the ZSM-5 surface, the sol–gel technique was used to immobilize titanium dioxide nanoparticles, and the resulting photocatalytic capacity was then enhanced using nickel nanoparticles to increase its photocatalytic efficiency. On the surface of ZSM-5, titanium dioxide was completely immobilized, resulting in a noticeable change in the surface morphology. The maximum % degradation of 50 mL of 15 mg/L of methylene blue dye at pH = 8. 14 percent, irradiation time = 140 min, and photocatalyst dosage = 0. 05 g.

Source link: https://doi.org/10.1007/s10904-022-02336-7


Exploration of CdO properties favoring superior photocatalytic degradation of methylene blue dye by Al^3+ doping

Cadmium oxide photocatalysts were manufactured using a chemically controlled co-precipitation process with the intention of being photocatalyst in the degradation of methylene blue dye. diffraction patterns of the synthesized CdO and CdAl_xO samples revealed the establishment of a single phase polycrystalline face-centered cubic CdO structure with no impurity phases, even after doping with Al3+. From the information derived from the XPS spectra, the presence of Al dopant as an Al3+ ion in the CdO lattice was confirmed. Measured optical band gaps measured from the UV–Vis spectra tended to lie in the range 2. 09 to 2. 57 eV and were responsible for the increased photocatalytic activity of the readied nanoparticles. For the degradation of methylene blue solution, the small-sized Al doped CdO nanoparticles showed significant photocatalytic activity for the reduction of methylene blue solution, with higher degradation percentage and kinetic rate constant in comparison to pure CdO.

Source link: https://doi.org/10.1007/s11082-022-03694-9


Effect of Annealing Temperature on Copper-Doped Nickel Oxide Nanomaterials for Efficient Degradation of Methylene Blue Under Solar Irradiation

While the XRD diffractograms showed that the crystallinity and crystallite size of Cu-NiO_x@700, Cu-NiO_x@500, Cu-NiO_x@600, Cu-NiO_x@500, Cu-NiO_x@600, Cu-NiO_x@500, Cu-NiO_x@700 gradually increased with XRD diffractograms increased with XR_x@300, crystallino and crystallite size of Cu-x@700, and crystallin the x@500, and crystallin the x@700, and Cu-x@500, and Cu-NiO_x@500, and Cu-x@600, and Cu-x@700, and Cu-x@600, and Cu-NiO_x@500, and Cu-NiO_x@800, and Cu-NiO_x@600, and Cu-x@600, and Cu- In comparison to NiO, the successful doping of Cu into NiO's lattice was an increase in lattice constants for the Cu-NiOx nanomaterials. Cu-NiO_x@700 demonstrated the most effective photocatalytic decomposition of methylene blue under solar irradiation, according to Cu-NiO_x@500 and Cu-NiO_x@300. Following pseudo-first-order reaction kinetics, Cu-NiO_x@600 showed the most reactive photocatalytic degradation of methylene blue relative to Cu-NiO_x@700 under solar irradiation.

Source link: https://doi.org/10.1007/s11664-022-09591-x

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions