Characterization of graphene oxide-ziziphus seeds and its application as a hazardous dye removal adsorbent

Abstract

The zizphus seeds are considered as a biomaterial residues that has been used for removing of organic industrial waste such as 2-((10-octyl-9,10-dihydroanthracene-2-yl) methylene) malononitrile (PTZS-CN) dye from aqueous solutions utilizing graphene oxide-Ziziphus (GO-Ziziphus). A batch study explored the impacts of various experimental circumstances, including solution pH, initial dye concentration, temperature, and contact time. General order, nonlinear pseudo-first order and pseudo-second order, elvoich model and intraparticiple diffusion were utilized to analyze the kinetic data. The adsorption kinetics of dye onto GO-ziziphus adsorption was best mentioned by nonlinear pseudo-first order. Similarly, the intra-particle diffusion plots revealed one exponential line throughout the adsorption process. The Freundlich, Dubinin-Radushkevich, and Langmuir models were employed to examine isothermal data. It provided the best fit of the dye adsorption isothermal data onto GO-ziziphus Freundlich models. Besides, the calculated free energies showed that the adsorption progression was physical adsorption. Thermodynamic calculations revealed that dye adsorption onto GO-ziziphus was exothermic and spontaneous. The combined results indicated that GO-ziziphus powder might be used to treat dye-rich wastewater effectively.

Synthesis and spectral characterization of the phenothiazine-thiosemicarbazide probe for the optical solid-state detection of Hg2+ and Cu2+

“…Heavy metal contamination of water resources can originate from numerous sources including consumer and industrial waste, weathering of rocks, volcanic eruptions, and acid rain, which decompose the soil and release metals into streams, rivers, lakes, and groundwater. [5][6][7] One of the frequently used heavy metals is copper (Cu). It is typically used in electronic chips, water pipes, batteries, mobile phones, semiconductors, pulp and paper industry, fungicide and pesticide industries, and manufacturing catalysts and products for metal processing.…”

Removal of Reactive Black-5 Dye by Adsorption Using Rhamnus pits as Agriculture Waste for Environmental Sustainability

“…According to the findings, GO-ziziphus powder might be utilized to successfully clean wastewater containing dyes. [11] The fibers from the banana stem is used to remove methylene blue dye (MBD), and their adsorbent effectiveness to examine their potential for use in cleaning up textile effluent waste. pH equal to 10, a temperature of 25 degrees Celsius, a concentration of 5 milligrams per milliliter, a stirring speed of 125 revolutions per minute, a dose of 2.5 milligrams per milliliter, and a mixing period of 150 minutes, banana stem fibers (BSF) killed 97% of MBD.…”

Green synthesis of quinazoline derivatives using a novel recyclable nano-catalyst of magnetic modified graphene oxide supported with copper

“…Carbon nanomaterials are used in the structure of various chemical compounds such as graphite, fullerenes, carbon nanotubes and graphene, that is why it has attracted the attention of researchers 1 – 3 . The structure of graphene is in the form of two-dimensional layers that are not completely flat, rather flexible and have a wavy, curved and folded surface.…”