In this work, the excision of hexavalent chromium (Cr(VI)) was studied from an aqueous solution using chemically modified arecanut leaf sheath (CALS) as a novel bio-adsorbent. The as-prepared adsorbent characterized by instrumental methods including Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and energy dispersive (EDS). effect several factors, pH, contact time, sorbent dosages were examined to identify optimum condition for sorption ability. optimal...

We studied the sequestration of hexavalent chromium Cr(VI) from an aqueous solution using chemically modified pomegranate peel (CPP) as efficient bio-adsorbent. The synthesized material was characterized by X-ray diffraction spectroscopy (XRD), Fourier-transform infrared (FTIR), energy dispersive (EDS), and scanning electron microscopy (SEM). impacts parameters like pH, concentration, contact time, adsorbent dosage were investigated. Experimental results isotherm studies adsorption kinetics...

A novel type of adsorbent, TiO2 impregnated pomegranate peels (PP@TiO2) was successfully synthesized and its efficacy investigated based on the removal As(III) from water. The adsorbent characterized using Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectrometer (EDS), Diffraction (XRD) analysis, Fourier Transform Infrared (FTIR) Spectroscopy, to evaluate morphology, elemental crystallinity, functional groups, respectively. Batch experiments were conducted PP@TiO2 for...

In this study, tin oxide (SnO2) nanoparticles was synthesized via green synthetic route using Psidium guajava (Guava) leaf extract as reducing, capping and stabilizing agents. The SnO2 NPs were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) UV-visible spectroscopy. XRD analysis revealed that have tetragonal rutile structure, the particle size found to be 19.5 nm estimated Debye-Scherer’s equation. addition, average calculated Williamson-Hall plot...

Group II–VI cadmium sulfide nanoparticles (CdS NPs), a potential alternative to antibiotics, were synthesized using acetate [Cd(Ac)2] as precursor, sodium sulfate reducing agent, and starch capping agent through chemical precipitation techniques. The CdS NPs characterized different characterizing techniques; X-ray diffraction selected area electron patterns verify that the had cubic zinc blende structure with average dimension size of 2.43 nm. Scanning mictroscope transmission microscope...

The potential of a biosorbent derived from Arundo donax stem, readily available agricultural product, was examined to remove Cr(VI) water. Various techniques such as XRD, FTIR, SEM, and EDX were used for the characterization prepared adsorbent. optimal pH biosorption found be 2.0. experimental data best suits Langmuir isotherm model pseudosecond-order kinetics. maximum capacity (qmax) investigated evaluated 76.92 mg/g by model. From results using charred stem powder (CADSP), it can novel,...

Lichen is one of the most abundant non-vascular biomasses; however, a systematic study on application biomass in nanomaterial synthesis very limited. In this study, an aqueous lichen extract was obtained from Hypotrachyna cirrhata , Himalayan biomasses, using simple cold percolation method. The effects extract-to-silver nitrate mixing ratio, pH and waiting time growth stability nanoparticles were systematically explored. rate constant for bio-reduction found to be 5.3 × 10 −3 min −1 ....

Cuprous oxide nanoparticles were synthesized by the reduction of copper sulphate pentahydrate salt at different concentration using sodium borohydride as a reducing agent, polyethylene glycol-6000 stabilizer simple, chemical co-precipitation methods and effect on particle size also studied. The crystalline phase Cu2O (NPs) authenticated X-ray diffraction (XRD), morphology structure scanning electron microscopy (SEM), transmission (TEM), elemental analysis was carried out energy-dispersive...

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In this work, we report the ZnTe semiconductor nanoparticles (NPs) prepared by aqueous chemical precipitation method using tellurium precursor solution with different zinc compounds. Three batches of NPs were synthesized to study effect dilution on size and phase purity ZnTe. The influence source compounds concentrations structure studied. have great applications as field-effect transistors photodetectors. existing controversy regarding crystalline NPs, whether it is cubic or hexagonal, has...

Zinc oxide (ZnO) nanoparticles were synthesized by chemical precipitation method using 0.1M and 0.3M [Zn(NO3)2.6H2O] Na2CO3 solutions. The particle size band gap of ZnO estimated effect concentration on it was investigated. characterized X-ray diffraction (XRD), Transmission electron microscopy (TEM), Energy dispersive spectroscopy (EDX), Fourier transform infrared (FTIR) UV-visible spectroscopy. XRD result revealed that have pure hexagonal wurtzite structure the varies from 27.0 nm to 29.9...

We developed a novel biosorbent based on zirconium-modified pomegranate peel (SPP@Zr) for efficient arsenic (As(III)) removal from water. SEM, EDX, XRD, and FTIR were used to characterize the prepared biosorbent. The batch adsorption method was evaluate viability of biosorbents As(III) EDX analysis saponified peels (SPP) before after Zr (IV) loading demonstrated that ion exchange preferred metal technique. As (III) is very pH-dependent, with maximum occurring at pH 8.0. capacity SPP@Zr found...

Green chemistry refers to the design of chemical product and processes that reduce or eliminate generation hazardous substances. Silver nanoparticles (AgNPs) were synthesized successfully from AgNO3 through a simple green synthetic route using Ageratina adenophora leaf extract which acts as both reducing capping agents. As AgNPs characterized with help X-ray diffraction (XRD) Fourier transform infrared (FTIR) spectroscopy. XRD study shows crystalline nature silver average particle size was...

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The study aimed to assess the levels of Lead (Pb) and Cadmium (Cd) in lipsticks theirs associated health hazards consumers. 13 7 lipglosses were selected randomly from various shopping centers Kathmandu, Nepal. lipstick sample was chemically digested analyzed using flame atomic absorption spectroscopy (FAAS). concentration range Pb Cd 0.020.009 30.970.014 mg kg-1 0.010.014 0.920.009 respectively. hazard quotient for found greater than 1 15 samples showing detrimental carcinogenic risk...

Silver nanoparticles (AgNPs) have been synthesized by green synthesis using Azadirachta indica leaf extract as both reducing and stabilizing agent. Synthesis of colloidal AgNPs was monitored UV- visible spectroscopy. The spectrum showed a peak at 455 nm corresponding to the plasmon absorbance silver nanoparticles. Crystallite structure studied X-ray diffraction (XRD) analysis which revealed face-centered cubic (FCC) with average particle size 8.9 nm, calculated Debye-Scherrer’s equation....

In this work, Litchi chinensis seed powder has been chemically modified to charred (CLCS) for removal of Cr(VI) from the simulated wastewater. The adsorption capacity CLCS was determined in batch experiment method. materials were characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), and fourier transform infrared (FTIR) spectroscopy. Biosorption behaviour investigated isotherm kinetic models. demonstrated a noteworthy Cr(VI), with maximum 69.93 mg/g at pH 2.0. onto...

Zirconia (ZrO2), an inorganic material, is a very fascinating material due to its high mechanical strength and fracture toughness. The synthesis carried out by using co-precipitation method optimum content of zirconium oxychloride octahydrate (ZrOCl2.8H2O) with NaOH solution at calcination temperature 700°C. synthesized samples were characterized ensure structural, functional, morphological chemical composition several techniques. monoclinic structure has been confirmed from XRD, SAED Raman...

Cadmium sulfide (CdS) nanoparticles were synthesized by wet chemical coprecipitation method using cadmium chloride and sodium as sulfur sources, respectively. Ascorbic acid was used capping agent. XRD analysis showed that the particles present in hexagonal phase. The average particle size, Debye-Scherer's equation, found to be temperature dependent, 3.1 nm at 20 °C 3.4 45 °C. CdS revealed considerable blue shift absorption edge compare bulk CdS. They exhibited quantum size effect an increase...

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This study utilized a green synthesis approach to produce CuO nanoparticles employing flower extract of Acmella oleracea where plant-derived biomolecules served as natural reducing and stabilizing agents. The synthesized were characterized through X-ray diffraction (XRD), UV-Vis spectroscopy, Fourier Transform Infrared (FTIR) analysis. XRD suggested the monoclinic phase that belong C2/c space group with crystallite size 17.35 nm on average. band gap was calculated using Tauc model which 2.27...