In this work, Fe3O4@nano-walnut shell/BIII (FNWSB), as a reusable and new catalyst was prepared then characterized by FT-IR, XRD, FESEM, EDS-MAP, TGA. This used for synthesis of tetrahydrobenzo[a]xanthen-11-ones via three-component, one-pot condensation reaction dimedone, β-naphthol, aromatic aldehydes. An uncomplicated work-up, high yields product, short times, use low-cost are considerable ad...

The effectiveness of low cost agro-based materials namely, Tamarindus indica seed (TS), crushed coconut shell (CS), almond shell (AS), ground nut shell (GS) and walnut shell (WS) were evaluated for Cr(VI) removal. Batch test indicated that hexavalent chromium sorption capacity (q(e)) followed the sequence q(e)(TS) > q(e)(WS) > q(e)(AS) > q(e)(GS) > q(e)(CS). Due to high sorptive capacity, tamar...

Adsorption of gold cyanide on three types of Activated Carbons (ACs) has been investigated in batch and column adsorption conditions. Applied ACs have been derived from different crops precursors i.e., coconut shell (CAC), peach stone (PAC), and walnut shell (WAC). As peach stone and walnut shells are abundant agricultural residues in Iran, the activated carbons produced from these precurso...

The main purpose of the research is to study composition walnut shells. Walnut kernels are widely used in food industry, but, at same time, shell obtained stage cleaning usually disposed by burning. Given multi-ton volume fruit processing, output production waste also significant. When processing even one ton walnuts, an unused product remains – a weighing over 550 kg, which requires removal an...

Heavy metal contamination is a primary concern worldwide and it discharged from the industrial wastewater to large amount of heavy receiving environments. In recent years, effective use agricultural by-products definitely major challenge in waste management. The fact that residues are more easily obtained cheaper than commercial adsorbents makes attractive. this study, removal zinc using natura...

OBJECTIVE To evaluate the effect of the intake of whole walnuts and walnut fractions on the oxidant status in mice. METHODS Thirty-six C57BL/6J male mice were randomized to be fed one of three diets: 1) a standard diet (control group), 2) a standard diet with 10% of whole walnuts (walnut-diet group), or 3) a standard diet with 2% of walnut skins (walnut-skin-diet group) for 8 wk. The plasma a...

<p>Dinitrobutylphenol is a toxic and resistant pollutant that pollutes the environment by producing toxins chemical wastewater. Present paper aims to study efficiency of magnetic particles walnut hard shell ash as cheap bi-compatible adsorbent for removable DNBP from aqueous environments. This was conducted at laboratory scale studied most important parameters including contact time, pH, ...