Bacterial nanocellulose (BNC) has been drawing enormous attention because of its versatile properties. Herein, we shed light on the BNC production by a novel bacterial isolate (MD1) utilizing various agro-industrial wastes. Using 16S rRNA nucleotide sequences, was identified as Komagataeibacter saccharivorans MD1. For first time, synthesis K. MD1 investigated wastes palm date, fig, and sugarcane molasses along with glucose Hestrin-Schramm (HS) medium control. After incubation for 168 h,...

Abstract Palm Peat (PP), the world’s first rich lignocellulosic medium derived from date palm agricultural residues, has not been previously explored for environmental purification. This study evaluates PP's performance in adsorbing methylene blue (MB) dye. PP is characterized by a spongy, porous structure with surface area of 16 m 2 /g. It possesses significant carbon and oxygen composition features active functional groups. Under conditions 30 mg/L initial MB concentration, 1 g/L dose, T =...

Feasibility studies were conducted in the preparation of an effective activated carbon (AC) using new raw Egyptian coal source called Maghara coal. Using this is eco-friendly, economical and highly available since it a local natural material; thus, was inspected for removal methylene blue (MB) dye from aqueous solutions. A very simple technique known as impregnation with NaOH by chemical activation process used. The most proper nano-activated (NAC) produced carbonization average particle...

Abstract This work focuses mainly on environmental concern and protection through providing beneficial use of waste biomass from water hyacinth to produce economical nano-magnetic adsorbent material-efficient for facile oil spill separation via an external magnetic field. The roots showed higher spills adsorption affinity 2.2 g/g compared with 1.2 shoots. Nano-activated carbon was successfully extracted the after alkaline activation followed by zinc chloride treatment before its...

Nano-activated carbon (NAC) prepared from El-Maghara mine coal were modified with nitric acid solution. Their physico-chemical properties investigated in terms of methylene blue (MB) adsorption, FTIR, and metal adsorption. Upon oxidation the ACS acid, surface oxide groups observed FTIR spectra by absorption peaks at 1750-1250 cm-1. The optimum processes parameters include HNO3/AC ratio (wt./wt.) 20, time 2 h, concentration HNO3 10% reaching maximum adsorption capacity MB dye. Also, NAC was...

Prospective involvement of metal oxide nanomaterials as a prominent agriculture practice for improving existing crop production directed the present investigation synthesizing ZnO and TiO2 an attempt to enhance transplants some Solanaceae crops. The morphological characterizations prepared indicated that hydrothermal synthesized was produced in nanorod structure with average aspect ratio 7. However, SEM TEM micrographs microwave evident it has nanoparticle diameter 43 nm. BET results...

Abstract This reported work aims to fabricate an eco-friendly Zr bio-based MOF and assessment its adsorption efficiency towards the cationic anionic dye pollutants including methylene blue (MB) direct red 81 (DR-81), respectively. Also, tendency for highly toxic heavy metal of hexavalent chromium (Cr(VI)) was compared with dyes. The performance bio-MOF showed that maximum monolayer capacities were recorded as 79.799 mg/g MB, 36.071 DR-81, 19.012 Cr(VI). Meanwhile, optimum dosage...

An efficient, environmentally compatible and highly porous, silver surface-modified photocatalytic zinc oxide/cellulose acetate/ polypyrrole ZnO/CA/Ppy hybrid nanofibers matrix was fabricated using an electrospinning technique. Electrospinning parameters such as solution flow rate, applied voltage the distance between needles to collector were optimized. The optimum homogenous uniform polymeric composite nanofiber through dispersion of 0.05% wt ZnO into dissolved with average diameter ranged...

Abstract High-density polyethylene (HDPE) waste and chicken eggshell were used to synthesize three novel adsorbents, namely mesoporous graphene (MG), nano-eggshell modified (nEMG), nano-magnetic (nM-EMG) for methyl red (MR) adsorption from simulated wastewater. The effects of conditions (pH, contact time, initial dye concentration, adsorbent dose, temperature) investigated. MG, nEMG, nM-EMG characterized using SEM, TEM, BET, EDX, XRD, FTIR analyses. had specific surface areas 15, 31, 179 m 2...

This study synthesized a ferric oxide–nanographite (NG) nanocomposite (Fe2O3@NG) from waste toner powder through carbonization. Subsequently, TiO2/Fe2O3@NG nanohybrid was fabricated using the sol-gel technique to improve photocatalytic degradation of dyes. nanocomposites were prepared at TiO2:Fe2O3@NG ratios 2:1 (Ti:T-21), 1:1 (Ti:T-11), and 1:2 (Ti:T-12). The porosity, morphology, surface chemistry, chemical interactions between TiO2, Fe2O3, graphite in characterized Brunauer–Emmett–Teller...

Abstract A novel biochar (BC), derived from spinach leaves, was utilized as an activator for persulfate (PS) in the degradation of methylene blue (MB) dye under visible light conditions. Thorough analyses were conducted to characterize physical and chemical properties biochar. The (BC + light)/PS system exhibited superior MB efficiency at 83.36%, surpassing performance light)/hydrogen peroxide light)/peroxymonosulfate systems. optimal conditions ascertained through implementation response...

Magnetic hydroxyapatite (MHAP) was found to be an ideal adsorbent for Fe(<sc>ii</sc>) and Mn(<sc>ii</sc>) in ground water from the El-Kharga Oasis Egypt.

The sol‐gel prepared zinc oxide nanopowder was immobilized onto alginate‐polyvinyl alcohol polymer blend to fabricate novel biocomposite beads. Various physicochemical characterization techniques have been utilized identify the crystalline, morphological, and chemical structures of both fabricated hybrid beads their corresponding nanopowder. thermal stability investigations demonstrate that ZnO dramatically decreased with its immobilization into polymeric alginate PVA matrix. formulated had...