Highly effective removal of malachite green from aqueous solution by hydrochar derived from phycocyanin-extracted algal bloom residues through hydrothermal carbonization

Hong, Zhang; Fa-yu, Zhang; Huang, Qing

doi:10.1039/c6ra27782a

Cited by 77 publications

(28 citation statements)

References 38 publications

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“…Contamination of MG in water causes serious problems for human and animal health due to its poisonous, carcinogenic, mutagenic or respiratory effects being found at high concentration in water [7,8]. It is well know that lead (Pb(II)) is a hypertoxic, biology accumulative and caustic heavy metal.…”

Section: Accepted M M a N U mentioning

confidence: 99%

Magnetic metal organic frameworks (MOFs) composite for removal of lead and malachite green in wastewater

Shi

Han

et al. 2018

Colloids and Surfaces A: Physicochemical and Engineering Aspect

204

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We designed and synthesized a magnetic metal organic frameworks (MOFs) composite, Cu-MOFs/Fe3O4 as the adsorbent for removal of lead (Pb(II)) and malachite green (MG) in wastewater. This Cu-MOFs/Fe3O4 can be easily prepared by in-situ growth of Cu-MOFs with doping Fe3O4 nanoparticles. The prepared Cu-MOFs/Fe3O4 composite was well characterized by SEM, XRD, and FTIR spectra. The adsorption experiments found that Cu-MOFs/Fe3O4 can serve as adsorbent for removal of Pb(II) and MG simultaneously. The adsorption capacities were found to be 113.67mg/g for MG and 219.00 mg/g for Pb 2+ , respectively, which are significantly higher than reported materials. Adsorption isotherm, kinetics and recyclability of Cu-MOFs/Fe3O4 for removal of Pb(II) and MG were then studied. Adsorption of Pb(II) and MG exhibited Freundlich adsorption isotherm model, with the adsorption kinetics of available second-order kinetic. Physical adsorption for MG and chemical adsorption for Pb(II) were confirmed by Dubinin-Radushkevich (D-R) isothermal adsorption model. The adsorption of Pb(II) and MG in real water samples were then studied. The Fe3O4/Cu-MOFs was found to be recyclable for removal of Pb(II) and MG, can be explored as the potential adsorbent for waste water treatment.

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Section: Accepted M M a N U mentioning

confidence: 99%

Magnetic metal organic frameworks (MOFs) composite for removal of lead and malachite green in wastewater

Shi

Han

et al. 2018

Colloids and Surfaces A: Physicochemical and Engineering Aspect

204

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“…The percentage of decolonization of malachite green by Enteromorpha was decreased with increase dye concentrations 31 . The removal percentage of malachite green by algal bloom residues decreased from 50.9 to 33.9% when the initial concentration of MG was increased from 50 to 100 mg/L 50 . The maximum decolonization of malachite green (71.41%) by Pithopora sp.…”

Section: Resultsmentioning

confidence: 93%

Bioprocessing strategies for cost-effective simultaneous removal of chromium and malachite green by marine alga Enteromorpha intestinalis

Hamouda

El‐Naggar

Doleib

et al. 2020

Sci Rep

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A large number of industries use heavy metal cations to fix dyes in fabrication processes. Malachite green (MG) is used in many factories and in aquaculture production to treat parasites, and it has genotoxic and carcinogenic effects. Chromium is used to fix the dyes and it is a global toxic heavy metal. Face centered central composite design (FCCCD) has been used to determine the most significant factors for enhanced simultaneous removal of MG and chromium ions from aqueous solutions using marine green alga Enteromorpha intestinalis biomass collected from Jeddah beach. The dry biomass of E. intestinalis samples were also examined using SEM and FTIR before and after MG and chromium biosoptions. The predicted results indicated that 4.3 g/L E. intestinalis biomass was simultaneously removed 99.63% of MG and 93.38% of chromium from aqueous solution using a MG concentration of 7.97 mg/L, the chromium concentration of 192.45 mg/L, pH 9.92, the contact time was 38.5 min with an agitation of 200 rpm. FTIR and SEM proved the change in characteristics of algal biomass after treatments. The dry biomass of E. intestinalis has the capacity to remove MG and chromium from aquatic effluents in a feasible and efficient manner.

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“…Malachite green has the potential to cause cancer, respiratory diseases and teratogenicity. 7,8 Typically, the textile industries dispose a sizable amount of Pb(II) and malachite green through their effluents. 9 Therefore, the development of an effective method to eliminate malachite green and Pb(II) from industrial effluents is a crucial task for preserving the environment.…”

Section: Introductionmentioning

confidence: 99%

Insights into the competitive adsorption of pollutants on a mesoporous alumina–silica nano-sorbent synthesized from coal fly ash and a waste aluminium foil

et al. 2020

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Highly effective removal of malachite green from aqueous solution by hydrochar derived from phycocyanin-extracted algal bloom residues through hydrothermal carbonization

Abstract: Huge volumes of harmful algal bloom residues (ABR) are collected during emergency treatment of cyanobacteria blooms, and phycocyanin-extracted algal bloom residues (PE-ABR) are produced after extraction of phycocyanin from ABR.

Cited by 77 publications

References 38 publications

Magnetic metal organic frameworks (MOFs) composite for removal of lead and malachite green in wastewater

Magnetic metal organic frameworks (MOFs) composite for removal of lead and malachite green in wastewater

Bioprocessing strategies for cost-effective simultaneous removal of chromium and malachite green by marine alga Enteromorpha intestinalis

Insights into the competitive adsorption of pollutants on a mesoporous alumina–silica nano-sorbent synthesized from coal fly ash and a waste aluminium foil

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