Removal of Methylene Blue from Water Using Hydroxyapatite Submitted to Microwave Irradiation

Allam, Khadija; Bouari, Abdeslam El; Belhorma, B.; Bih, L.

doi:10.4236/jwarp.2016.83030

Cited by 45 publications

(31 citation statements)

References 46 publications

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“…This means that when the solution of pH<pHpzc, the surface of hydroxyapatite is positively charged and this leads to decrease the adsorption of the cationic dyes. As known, MB is the cationic dye and higher adsorption of MB can be favored above the pHpzc of hydroxyapatite (Allam et al 2016). MB adsorption increased from 5.30 to 37.69% and from 33.01% and 64.51% with the increasing the pH from 3.0 to 11 by using Hyd and Fe-Hyd, respectively.…”

Section: Effect Of Phmentioning

confidence: 84%

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Enhancement of Methylene Blue dye adsorption by Fe-Hydroxyapatite composite

Çifçi¹

2016

Advances in environmental research

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Synthesized hydroxyapatite (Hyd) and Fe-hydroxyapatite (Fe-Hyd) composite were used for the removal of Methylene Blue (MB) from aqueous solutions in this study. The effect of adsorbent amount, pH and initial MB concentration were carried out to investigate in the aqueous solution. The kinetic study shows that the MB adsorption process with Hyd or Fe-Hyd follow pseudo-second order kinetic model. Experimental results are well fitted to the Langmuir isotherm model. The maximum adsorption capacities of Hyd and Fe-Hyd were obtained as 2.90 mg/g and 5.64 mg/g for MB according to Langmuir Isotherm models, respectively. Fe-Hyd composite increased the adsorption capacity of Hyd by 1.95 times that Hyd. It is concluded that Fe-Hyd composite is promising and economical adsorbent for MB removal in the aqueous solution.

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Section: Effect Of Phmentioning

confidence: 84%

“…Furthermore, it is environmental friendly and has low-cost and abundant hydroxyl groups (Cui et al 2014). There have been many researches on the removal of heavy metals and dyes using hydroxpatite or modified hydroxyapatite (Mahmud et al 2012, Allam et al 2016, Zhuang et al 2015, Valizadeh et al 2016.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Methylene Blue dye adsorption by Fe-Hydroxyapatite composite

Çifçi¹

2016

Advances in environmental research

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“…Ada banyak adsorben yang telah dikembangkan untuk tujuan tersebut, diantaranya adalah hidroksiapatit (HAp). HAp adalah mineral fosfat yang dapat disintesis di laboratorium (Allam et al, 2016;Mobasherpour et al, 2012) , tetapi juga secara alami disintesis dalam tubuh mahluk hidup dan terdeposisi pada bagian tertentu seperti tulang dan gigi. Di bidang kesehatan, HAp dimanfaatkan sebagai bahan sediaan medis dalam transplantasi tulang (Venkatesan et al, 2011;Piccirillo et al, 2015;Yamamura et al, 2018) dan dalam bidang lingkungan telah diterapkan sebagai adsorben logam berat dan pewarna sintetik (Dabiri et al, 2018;Peng et al, 2017).…”

Section: Pendahuluanunclassified

Adsorpsi Metilen Biru Pada Hidroksiapatit Dari Tulang Ikan Kakap Merah

Wuntu¹,

Koleangan²,

Wuntu³

2020

JIS

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Adsorpsi Metilen Biru Pada Hidroksiapatit Dari Tulang Ikan Kakap MerahABSTRAKPenelitian yang bertujuan untuk mempelajari adsorpsi metilen biru pada hidroksiapatit yang diperoleh dari tulang ikan kakap merah (Lutjanus sp.) telah dilakukan. Tulang dikalsinasi dalam tanur pada 600, 800, dan 1000 oC, digerus, dan diayak dengan ayakan 100 mesh. Material tersebut selanjutnya digunakan dalam eksperimen adsorpsi dan data yang diperoleh dianalisis menggunakan model isoterm adsorpsi Langmuir, Freundlich, dan Dubinin-Raduskevich. Hasil penelitian menunjukkan bahwa semakin tinggi suhu kalsinasi, semakin rendah kapasitas adsorben untuk mengadsorpsi metilen biru. Energi adsorpsi yang dihitung berada dalam kisaran 0,84-1,14 kJ mol-1 yang mengindikasikan bahwa metilen biru teradsorpsi secara fisik pada adsorben dan adsorpsi cenderung mengikuti model isoterm adsorpsi Freundlich.Kata kunci: kakap merah, hidroksiapatit, metilen biru, adsorpsi Adsorption of Methylene Blue on Hydroxyapatite from Red Snapper Fish Bones ABSTRACTA research aimed to study the adsorption of methylene blue on hydroxyapatite obtained from red snapper fish bones (Lutjanus sp.) was performed. The bones were calcined in a furnace at 600, 800, and 1000 oC and ground to pass a 100 mesh sieve. The materials were used in the adsorption experiment and the data obtained were analyzed using Langmuir, Freundlich, and Dubinin-Raduskevich adsorption isotherm models. The results showed that the higher the calcination temperature, the lower the capacity of the adsorbent to adsorb methylene blue. Calculated adsorption energy which was in a range of 0.84-1.14 kJ mol-1 indicated that the dye was adsorbed physically on the adsorbent and the adsorption could be well described by Freundlich adsorption isotherm model.Keywords: red snapper, hydroxyapatite, methylene blue, adsorption

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“…filtration, ion exchange, reductionoxidation, flocculation, chemical precipitation, membrane, and adsorption. Among these methods, adsorption is acclaimed as the most straightforward, low cost and effective way to remove pollutants 7,8 . The adsorbent can be sourced from various organic and inorganic materials.…”

Section: Introductionmentioning

confidence: 99%

“…This fish has been cultivated for a long time ago. The method of hydroxyapatite preparation such as heat treatment 23 , co-precipitation 24,27 , sol-gel 28 , combustion 29 and ultrasonic 30 . The choice of preparation method will affect hydroxyapatite crystallinity, the molar ratio of Ca/P, and particle size 31 .…”

Section: Introductionmentioning

confidence: 99%

Kinetic and thermodynamic adsorption of nickel (II) onto hydroxyapatite prepared from Snakehead (Channa striata) fish bone

2019

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Biomaterial exploration base on solid waste has been an attractive issue, particularly regarding economic and environmental demand. This work aimed to extract hydroxyapatite from snakehead fishbone through precipitation method and used to remove Ni(II). The hydroxyapatite product was characterized by using X-ray Diffraction (XRD), Fourier Transform Infrared spectroscopy (FTIR), Scanning Electron Microscope-Energy Dispersive Spectroscopy (SEM-EDS) and Brunauer Emmett Teller (BET) method. Batch adsorption experiment includes pH solution, contact time and Ni(II) concentration. Pseudo-first order and pseudo-second-order were used to investigate the reaction mechanism and kinetic model, while adsorption equilibrium was evaluated according to Langmuir and Freundlich isotherm. XRD and FTIR spectra confirmed that hydroxyapatite was successfully extracted. The molar ratio (Ca/P) of hydroxyapatite was found at 1.70. The particle size of the hydroxyapatite was 48.77 nm. The pseudo-second-order is appropriate to describe the kinetic model while the adsorption mechanism follows Langmuir isotherm, which has an adsorption capacity of 5.359mg/g. The thermodynamic evaluation suggested the adsorption of Ni(II) is spontaneous in the endothermic process.

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Removal of Methylene Blue from Water Using Hydroxyapatite Submitted to Microwave Irradiation

Cited by 45 publications

References 46 publications

Enhancement of Methylene Blue dye adsorption by Fe-Hydroxyapatite composite

Enhancement of Methylene Blue dye adsorption by Fe-Hydroxyapatite composite

Adsorpsi Metilen Biru Pada Hidroksiapatit Dari Tulang Ikan Kakap Merah

Kinetic and thermodynamic adsorption of nickel (II) onto hydroxyapatite prepared from Snakehead (Channa striata) fish bone

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