Modification of green algae harvested from the Persian Gulf by L-cysteine for enhancing copper adsorption from wastewater: Experimental data

Ebrahimi, Aida; Hashemi, Seyedenayat; Akbarzadeh, Samad; Ramavandi, Bahman

doi:10.1016/j.cdc.2016.04.003

Cited by 26 publications

(9 citation statements)

References 23 publications

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“…It was found that the optimum pH value was 5 and the maximum adsorption capacity was 26.88 mg/g [ 28 ]. Ebrahimi et al [ 31 ] modified the green algae Cladophora sericioides by L-cysteine to enhance the copper adsorption. The green seaweeds were modified by 7 days cultivation in a reactor containing 20 L of seawater and 3 mg/L-cysteine under illumination cycle 12/12 at an average intensity of 2500 lx at 25 °C.…”

Section: Green Seaweeds and Their Applicationsmentioning

confidence: 99%

“…The maximum adsorption capacities were 13 and 19 mg/g for the simple and modified algae, respectively. The modification significantly improved the copper adsorption capacity [ 31 ].…”

Section: Green Seaweeds and Their Applicationsmentioning

confidence: 99%

“…In recent years there has been a sudden surge in interest to develop and utilize these types of under-exploited marine sources for novel materials. For instance, ulvan possesses attractive physicochemical properties and biological activities, resulting in its applications in different innovative applications [ 16 , 31 ]. According to the Web of Science database, distribution of research effect across green seaweed polysaccharides and number of research papers on the subject have increased.…”

Section: Ulvan-based Biomaterials and Their Applicationsmentioning

confidence: 99%

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A Short Review on the Valorization of Green Seaweeds and Ulvan: FEEDSTOCK for Chemicals and Biomaterials

et al. 2020

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This short review analyzed the recent trend towards, progresses towards the preparation of chemicals of, and value-added biomaterials from marine macroalgae resources, especially green seaweeds and their derived ulvan polysaccharides for various applications. In recent years, ulvan both in pristine and modified forms has gained a large amount of attention for its effective utilization in various areas due to its unique physiochemical properties, lack of exploration, and higher green seaweed production. The pristine form of ulvan (sulfated polysaccharides) is used as a bio-component; food ingredient; or a raw material for the production of numerous chemicals such as fuels, cosmetics, and pharmaceuticals, whereas its modified form is used in the sector of composites, membranes, and scaffolds, among others, because of its physicochemical properties. This review highlights the utilization of green seaweed and its derived ulvan polysaccharides for the preparation of numerous chemicals (e.g., solvents, fuel, and gas) and also value-added biomaterials with various morphologies (e.g., gels, fibers, films, scaffolds, nanomaterials, and composites).

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Section: Green Seaweeds and Their Applicationsmentioning

confidence: 99%

“…The maximum adsorption capacities were 13 and 19 mg/g for the simple and modified algae, respectively. The modification significantly improved the copper adsorption capacity [ 31 ].…”

Section: Green Seaweeds and Their Applicationsmentioning

confidence: 99%

Section: Ulvan-based Biomaterials and Their Applicationsmentioning

confidence: 99%

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A Short Review on the Valorization of Green Seaweeds and Ulvan: FEEDSTOCK for Chemicals and Biomaterials

et al. 2020

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“…For example, these compounds have been explored for the production of biogas and biodiesel, which can be an alternative and efficient fuel to replace the use of fossil fuels. The SP ulvan extracted from the green seaweed possesses attractive physicochemical properties and biological activities, resulting in its applications in different innovative applications [171,172].…”

Section: Seaweeds Extracts In Industrial Applicationsmentioning

confidence: 99%

An Overview to the Health Benefits of Seaweeds Consumption

2021

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Currently, seaweeds are gaining major attention due to the benefits they give to our health. Recent studies demonstrate the high nutritional value of seaweeds and the powerful properties that seaweeds’ bioactive compounds provide. Species of class Phaeophyceae, phylum Rhodophyta and Chlorophyta possess unique compounds with several properties that are potential allies of our health, which make them valuable compounds to be involved in biotechnological applications. In this review, the health benefits given by consumption of seaweeds as whole food or by assumption of bioactive compounds trough natural drugs are highlighted. The use of seaweeds in agriculture is also highlighted, as they assure soils and crops free from chemicals; thus, it is advantageous for our health. The addition of seaweed extracts in food, nutraceutical, pharmaceutical and industrial companies will enhance the production and consumption/usage of seaweed-based products. Therefore, there is the need to implement the research on seaweeds, with the aim to identify more bioactive compounds, which may assure benefits to human and animal health.

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“…Heavy metals are among the serious contaminants of the environment, which belong to the class of priority pollutants, as they are not degradable in environments and are harmful to the human health . As a hazardous contaminant, chromium is found in many industrial activities including water plating, leather making and wood processing factories, alloy and steel production factories, plating, tannery, dyeing, and welding .…”

Section: Introductionmentioning

confidence: 99%

Chromium(VI) removal by bone char–ZnO composite: Parameters optimization by response surface methodology and modeling

Ranjbar

Hashemi

Ramavandi

et al. 2018

Env Prog and Sustain Energy

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This study presents the efficiency of bone char‐ –ZnO for eliminating chromium(VI) from aqueous solutions. The bone char‐ –ZnO composite was provided using sol‐–gel method. The elemental, morphology, surface analysis of bone char‐ –ZnO were fully studied. The prepared composite was mostly composed of Ca5(PO4)3OH and had a specific surface area of 28.09 m2/g. Results indicated that central composite design (CCD) has a desirable ability (R2 > 0.87) to predict chromium(VI) removal by bone char‐ –ZnO. Furthermore, the results suggest that the removal efficiency increased with the elevation of adsorbent dose, shaking rate, temperature, and contact time. Isotherm and kinetics investigation indicated that chromium adsorption process follows Langmuir model (R2 > 0.97 and Qm= 84.03 mg/g) and second‐ order kinetic model (R2 > 0.999). The values of ΔH° and ΔS° of the chromium adsorption reaction by bone char‐ –ZnO were obtained as 580 kJ/mol and 5.5 kJ/mol K, respectively, suggesting spontaneity and endothermicity of the reaction. Desorption study was also performed by two desorbent agents of distilled water and nitric acid. Overall, it can be concluded that the bone char‐ –ZnO composite is an efficient and potential adsorbent to be used in water and wastewater treatment plants. © 2018 American Institute of Chemical Engineers Environ Prog, 37: 1684–1695, 2018

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Modification of green algae harvested from the Persian Gulf by L-cysteine for enhancing copper adsorption from wastewater: Experimental data

Cited by 26 publications

References 23 publications

A Short Review on the Valorization of Green Seaweeds and Ulvan: FEEDSTOCK for Chemicals and Biomaterials

A Short Review on the Valorization of Green Seaweeds and Ulvan: FEEDSTOCK for Chemicals and Biomaterials

An Overview to the Health Benefits of Seaweeds Consumption

Chromium(VI) removal by bone char–ZnO composite: Parameters optimization by response surface methodology and modeling

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