Mechanistic studies of phytoremediative eradication of brilliant green dye from water by acid-treated lignocellulosic waste.

A rapidly growing problem for life on earth is contamination of fresh water which is addressed in this article. By taking a glimpse on the causes of contaminations, persistent organic pollutants, especially synthetic dyes got prominent role. Here, out of commonly used techniques, adsorption using plant wastes was chosen for phytofiltration of such dyes.

Combined molecular dynamics simulations and experimental studies of the removal of cationic dyes on the eco-friendly adsorbent of activated carbon decorated montmorillonite Mt@AC.

In recent years, the combination of experimental and theoretical study to explain adsorbate/adsorbent interactions has attracted the attention of researchers. In this context, this work aims to study the adsorption of two cationic dyes, namely methylene blue (MB) and crystal violet (CV), on a green adsorbent Montmorillonite@activated carbon (Mt@AC) composite and to explain the adsorption behavior of each dye by the molecular dynamics (MD) simulation method. The eco-friendly nanocomposite Mt@AC is synthesized and characterized by the analysis methods: XRD, FTIR, BET, TGA/DTA, SEM-EDS, EDS-mapping and zeta potential.

The dual impact of Jordanian for inhibiting pepsin and treating microbial infections.

Screening of phytochemical crude extract by GC-MS and HPLC analysis indicated the presence of alkaloids, tannins, flavonoids, terpenoids, and phenolic acid in the extract. The total phenolic content of methanol extract was 39.43 mg of Gallic acid eq/g, crude with 56.

Sorptive removal of diamond green dye by acid treated peels in eco-friendly way.

In this study, acid treated (PG) peels were used for effective removal of Diamond green (DG) dye, commonly found in textile industry waste. Acid treatment enhanced the efficiency of this process along with increasing shelf life and stability of bio-adsorbent by reducing fungal attack risk. Optimized operational parameters for removing DG dye using PG peels powder were: 35-minute contact time, 75 rpm agitation speed, 50°C temperature and pH of 2.

A novel route for preparation of chemically activated carbon from pistachio wood for highly efficient Pb(II) sorption.

Pistachio wood-derived activated carbon prepared by a two-stage process (PWAC-2), conducting two consecutive chemical activation processes with NHNO and NaOH, respectively. The results showed that explosive characteristic of NHNO can primarily be employed to produce a char, with a large surface area and a highly-ordered pore structure, which can be subjected to a second activation process with NaOH to prepare a more suitable activated carbon, with a highly porous structure and useful functional groups, for removal of lead ions from aqueous media. An L Taguchi experimental design was used by varying impregnation ratio, activation time and temperature in both pre- and post-activation stages, and the results showed that, in both stages, a small activating agent/precursor and a proportional low activation time suffice for preparation of an advantageous activated carbon for Pb(II) adsorption.

Kinetic Studies on the Removal of Some Lanthanide Ions from Aqueous Solutions Using Amidoxime-Hydroxamic Acid Polymer.

Lanthanide metal ions make distinctive and essential contributions to recent global proficiency. Extraction and reuse of these ions is of immense significance especially when the supply is restricted. In light of sorption technology, poly(amidoxime-hydroxamic) acid sorbents are synthesized and utilized for the removal of various lanthanide ions (La, Nd, Sm, Gd, and Tb) from aqueous solutions.