Advertisement

Topics

Synthesis using natural functionalization of activated carbon from pumpkin peels for decolourization of aqueous methylene blue.

08:00 EDT 25th March 2019 | BioPortfolio

Summary of "Synthesis using natural functionalization of activated carbon from pumpkin peels for decolourization of aqueous methylene blue."

In this study, a novel approach was applied for modification and functionalization of pumpkin peels (PP) derived carbon using natural beetroot extract. PP waste biomass was carbonized at 250 (AC), 350 (AC), 450 (AC) and 550 °C (AC) and used as adsorbent for the scavenging of methylene blue (MB). The adsorption results revealed that AC was the most efficient material. Thereafter, AC was further modified with different acids and natural beetroot extract to enhance the adsorption efficiency for MB removal. Modified and functionalized carbon materials were characterized to determine the functional groups, crystalline nature and surface morphology of adsorbents using Fourier Transformed Infra-Red spectroscopy, X-ray Diffraction and Scanning Electron Microscopy. The pore size distribution measurements by non-local density functional theory (NLDFT) revealed the presence of large number of mesopores in the beetroot activated carbon (BAC) with the BET specific surface area of 3.6 m.g. The adsorption studies exhibited the highest adsorption (198.15 mg.g) for MB using 0.5 g.L of adsorbent mass at 200 mg.L MB concentration and 50 °C within 180 min. Reaction kinetics analysis of the experimental data revealed that adsorption followed pseudo second order kinetic model where BAC showed highest reaction rate constant value of 0.0095 and correlation coefficient value of 0.9992. The equilibrium data were tested by using Freundlich and Langmuir isotherm models. For both isotherms, the characteristic parameters were determined and the adsorption behaviour was found to fit well with the Langmuir isotherm model indicating monolayer adsorption of MB.

Affiliation

Journal Details

This article was published in the following journal.

Name: The Science of the total environment
ISSN: 1879-1026
Pages: 369-376

Links

DeepDyve research library

PubMed Articles [15233 Associated PubMed Articles listed on BioPortfolio]

Enzymatic CH functionalizations for natural product synthesis.

Direct functionalization of CH bond is rapidly becoming an indispensible tool in chemical synthesis. However, due to the ubiquity of CH bonds, achieving site-selective functionalization remains an ard...

Noble metal nanoparticles supported on activated carbon: Highly recyclable catalysts in hydrogen generation from the hydrolysis of ammonia borane.

Noble metal nanoparticles including rhodium, ruthenium and palladium have been extensively used in catalysis field. Since their limited abundance and high cost, many methods have been developed to obt...

Activated Carbon-Promoted Dehydrogenation of Hydroquinones to Benzoquinones, Naphthoquinones, and Anthraquinones under Molecular Oxygen Atmosphere.

We found activated carbon- molecular oxygen system promotes the conversion of hydroquinones to benzoquinones, naphthoquinones, and anthraquinones, which are often found in natural products and pharmac...

A novel natural chitosan/activated carbon/iron bio-nanocomposite: Sonochemical synthesis, characterization, and application for cadmium removal in batch and continuous adsorption process.

The natural chitosan was synthesized using shrimp shells via sonochemical method, and activated carbon produced from grape stalks biomass. The novel bio-nanocomposite of chitosan/activated carbon/iron...

Catalyst-Controlled Selective Functionalization of Unactivated C-H Bonds in the Presence of Electronically Activated C-H Bonds.

A new chiral dirhodium tetracarboxylate catalyst, Rh( S-2-Cl-5-BrTPCP), has been developed for C-H functionalization reactions by means of donor/acceptor carbene intermediates. The dirhodium catalyst ...

Clinical Trials [2757 Associated Clinical Trials listed on BioPortfolio]

Activated Carbon Interphase Effect on Biofilm and Total Bacterial Load

The purpose of this randomized, prospective study is to evaluate how this activated carbon dressing affects the total bacterial load and biofilm in a wound bed in wounds of the lower extre...

The Effects of Pumpkin Seed Oil Supplementation on Cardiovascular Function in Postmenopausal Women.

Postmenopausal women have a higher prevalence of cardiovascular (CV) disease than age-match men. Growing evidence from rat studies have demonstrated CV-protective effects of pumpkin seed o...

Effect of Pumpkin Seeds Phonophoresis on Chronic Non-bacterial Prostatitis

It has been observed that out of all visits to the clinics by the young and middle age men for grievances including the genital and urinary frameworks, about 25% of the visits account for ...

Contribution of PRF in CDH in Children With Prothetic Patch Closure

Improved management of giant congenital diaphragmatic hernias (CDH) in neonates : decreased risk of morbidity and mortality due to prosthesis release. CDH is a rare disease with a still ve...

"LANK-2": Activated and Expanded NK Cell Immunotherapy Together With Salvage Chemotherapy in Children, Adolescents and Young Adults With Relapsed or Refractary Acute Leukemia

To determine safety profile of immunotherapy with natural killer cells and activated expanded (NKAEs) after salvage chemotherapy in children, adolescents and young adults with relapsed or ...

Medical and Biotech [MESH] Definitions

Any of several processes for the permanent or long-term artificial or natural capture or removal and storage of carbon dioxide and other forms of carbon, through biological, chemical or physical processes, in a manner that prevents it from being released into the atmosphere.

A 30 kDa stimulatory receptor found on resting and activated NATURAL KILLER CELLS.

A 44-kD stimulatory receptor found on activated NATURAL KILLER CELLS. It has specificity for VIRAL HEMAGGLUTININS that are expressed on infected cells.

A 46-kD stimulatory receptor found on resting and activated NATURAL KILLER CELLS. It has specificity for VIRAL HEMAGGLUTININS that are expressed on infected cells.

Unsaturated derivatives of the ESTRANES with methyl groups at carbon-13, with no carbon at carbon-10, and with no more than one carbon at carbon-17. They must contain one or more double bonds.

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Relevant Topic

Radiology
Radiology is the branch of medicine that studies imaging of the body; X-ray (basic, angiography, barium swallows), ultrasound, MRI, CT and PET. These imaging techniques can be used to diagnose, but also to treat a range of conditions, by allowing visuali...


Searches Linking to this Article