Lignocellulosic Materials as Dye Adsorbents: Adsorption of Methylene Blue and Congo Red on Brewers’ Spent Grain

Kezerle, Antonija; Velić, Natalija; Hasenay, Damir; Kovačević, Davor

doi:10.5562/cca3289

Cited by 32 publications

(20 citation statements)

References 46 publications

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“…From the plot, it could be observed that the amount of MEB adsorbed increased as the concentration increased. This observation is in line with the studies [38,26] on the removal of MEB through brewers spent mint adsorptive capacity and retama raetam. Sorption capacity increased as the initial MEB concentration increased from 0.095 mg/g to 0.2 mg/g and equilibrium was attained indicating increased fractional MEB adsorption.…”

Section: Effect Of Initial Meb Concentration and Time Of Contactsupporting

confidence: 92%

“…Surface area and pore size of the ARHB determined from BET surface area plot are 9.369 cc/g and 27.32 m 2 /g respectively and represented in Figure 2. The XRD patterns of ARHB ( Figure 3) contained only a broad peak that is characteristic of amorphous phase silica common among biochars carbonized below 600 o C (38). BET surface area analysis and XRD analysis of ARHB showed amorphous nature and nanosize forms of the biochar respectively [2,12,49] .…”

Section: Nature Of Sorbentmentioning

confidence: 99%

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Removal of Methylene Blue From Aqueous Solution Using Activated Rice Husk Biochar: Adsorption Isotherms, Kinetics and Error Analysis

Nworie

Nwabue

Oti³

et al. 2019

J. Chil. Chem. Soc.

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Removal efficiency of methylene blue (MEB) from aqueous media was studied under different experimental conditions of pH, contact time and initial concentration of the adsorbate. Activated rice husk biochar (ARHB) was characterized using BET surface area and XRD. The XRD diffraction indicated amorphous nature of the biochar with pore size (cc/g) and pore surface area (m2/g) of 9.369 and 27.32 respectively from BET surface area plot. Equilibrium isotherm based on coefficient of non-determination indicated the following order as best fit model: Hill ˃ Kiselev ˃Elovic ˃Flory-Huggins > Langmuir > Jovanovic > Harkin-Jura >Freundlich > Henry > Temkin >Redlich Peterson>Durbinin-Kaganer Redushkevich >Hill-de Boer > Fowler-Guggenheim. Based on the highest correlation coefficient and the lowest values of the error functions applied to the kinetic models, Weber and Morris intra-particle diffusion and liquid film diffusion were noted to be in control of the sorption rate. The MEB sorption capacity of the activated biochar was 356.99 mmolkg-1 which was in the range of commercially available activated carbons and other biosorbents.

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Section: Effect Of Initial Meb Concentration and Time Of Contactsupporting

confidence: 92%

Section: Nature Of Sorbentmentioning

confidence: 99%

Removal of Methylene Blue From Aqueous Solution Using Activated Rice Husk Biochar: Adsorption Isotherms, Kinetics and Error Analysis

Nworie

Nwabue

Oti³

et al. 2019

J. Chil. Chem. Soc.

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“…The effect of contact time on the removal of methylene blue dye when using fir wood sawdust as adsorbent material is given in Fig. 3 which shows the potential of the adsorbent material in the process of retaining the methylene blue dye due to the presence of lignocellulosic components (cellulose, hemicellulose and lignin) in the sawdust structure that are mainly responsible for the adsorption process [23]. The adsorption is achieved through the interaction of dyes and functional groupsmainly hydroxyl and carboxyl groupsof these polymers [23].…”

Section: Influence Of Contact Timementioning

confidence: 99%

Methylene Blue Removal From Residual Water Using Fir Wood Sawdust as Adsorbent

et al. 2021

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Methylene blue is generally used as dyeing agent in textile, printing and pharmaceutical industries, which leads to the obtaining of large amounts of wastewater. The purpose of this study is to remove methylene blue dye from aqueous solutions using fir wood sawdust waste as low cost biosorbent material. In order to evaluate the adsorption process, analyses for determination of micrometric properties, infrared spectroscopy, optical microscopy and colorimetry were performed. To increase the efficiency of the process and the adsorption surface, the fir wood sawdust was grinded and sieved. Some specific parameters were varied in the experimental part in order to study the influence of the adsorbent support dose, concentration, temperature, contact time, volume and stirring rate. The removal efficiency of methylene blue dye was further studied for evaluating the adsorption capacity of the fir wood sawdust.

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“…Proses adsorpsi terjadi akibat interaksi antara zat warna dan gugus fungsi dari polimer-polimer tersebut (seperti -OH dan -COOH) (Kezerle, 2018).…”

Section: Pendahuluanunclassified

Analisis Penurunan Konsentrasi Methyl Orange Dengan Biosorben Kulit Pisang Cavendish (Musa Acuminata Cv. Cavendish)

Widiatmono

Haji

Robbaniyah

2019

JSAL

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Air limbah industri mengandung berbagai kontaminan termasuk asam, basa, padatan terlarut, senyawa beracun, dan zat warna organik. Methyl orange merupakan salah satu zat warna yang sering digunakan dalam industri kertas, plastik, makanan, dan tekstil yang dapat menghasilkan limbah berbahaya bagi lingkungan. Prosedur pengolahan limbah cair yang ada saat ini masih belum bisa menghilangkan zat warna azo secara menyeluruh. Komponen utama pada biomassa yang bertanggung jawab pada proses adsorpsi yaitu polimer: selulosa, hemiselulosa, dan lignin. Kulit pisang mengandung lignoselulosa sehingga dianggap berpotensi digunakan sebagai biosorben dalam proses biosorpsi. Tujuan penelitian adalah mengetahui konsentrasi zat warna methyl orange pada berbagai variasi perlakuan; mengetahui efisiensi removal biosorben; dan mengetahui kondisi optimum proses adsorpsi methyl orange. Penelitian menggunakan Rancangan Acak Lengkap Faktorial dengan dua faktor perlakuan, yaitu dosis adsorben dan waktu kontak. Sampel menggunakan sampel limbah methyl orange buatan dengan konsentrasi 50 ppm. Karakteristik kulit pisang dianalisis menggunakan FTIR. Dosis adsorben, waktu kontak, dan interaksi keduanya memiliki pengaruh yang signifikan terhadap konsentrasi akhir methyl orange. Kondisi optimum adsorpsi methyl orange menggunakan adsorben kulit pisang terjadi pada waktu kontak 120 menit dan dosis adsorben 1 g.

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Lignocellulosic Materials as Dye Adsorbents: Adsorption of Methylene Blue and Congo Red on Brewers’ Spent Grain

Cited by 32 publications

References 46 publications

Removal of Methylene Blue From Aqueous Solution Using Activated Rice Husk Biochar: Adsorption Isotherms, Kinetics and Error Analysis

Removal of Methylene Blue From Aqueous Solution Using Activated Rice Husk Biochar: Adsorption Isotherms, Kinetics and Error Analysis

Methylene Blue Removal From Residual Water Using Fir Wood Sawdust as Adsorbent

Analisis Penurunan Konsentrasi Methyl Orange Dengan Biosorben Kulit Pisang Cavendish (Musa Acuminata Cv. Cavendish)

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