scholarly journals Fe3O4-CuO-activated carbon composite as an efficient adsorbent for bromophenol blue dye removal from aqueous solutions

2020 ◽  
Vol 13 (11) ◽  
pp. 8080-8091
Author(s):  
Ali Q. Alorabi ◽  
M. Shamshi Hassan ◽  
Mohamed Azizi
Keyword(s):  
Activated Carbon ◽  
Aqueous Solutions ◽  
Dye Removal ◽  
Carbon Composite ◽  
Bromophenol Blue ◽  
Blue Dye ◽  
Bromophenol Blue Dye ◽  
Efficient Adsorbent

Fabrication of magnetic cerium-organic framework-activated carbon composite for charged dye removal from aqueous solutions

2021 ◽  
pp. 116578
Author(s):  
Roxana Paz ◽  
Herlys Viltres ◽  
Yeisy C. López ◽  
Nishesh Kumar Gupta ◽  
Carolina Levya
Keyword(s):  
Activated Carbon ◽  
Aqueous Solutions ◽  
Dye Removal ◽  
Carbon Composite ◽  
Organic Framework

scholarly journals Removal of atrazine from aqueous solutions onto a magnetite/chitosan/activated carbon composite in a fixed-bed column system: optimization using response surface methodology

RSC Advances ◽  
2020 ◽  
Vol 10 (68) ◽  
pp. 41588-41599
Author(s):  
Ignace Agani ◽  
Jacques K. Fatombi ◽  
Sèmiyou A. Osseni ◽  
Esta A. Idohou ◽  
David Neumeyer ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Activated Carbon ◽  
Aqueous Solutions ◽  
Response Surface ◽  
Fixed Bed ◽  
System Optimization ◽  
Carbon Composite ◽  
Fixed Bed Column ◽  
Column System ◽  
Efficient Adsorbent

In this study, a magnetite/chitosan/activated carbon (MCHAC) composite is proposed as an efficient adsorbent for the removal of atrazine from aqueous solutions.

scholarly journals Adsorption and Photocatalytic Mineralization of Bromophenol Blue Dye with TiO2 Modified with Clinoptilolite/Activated Carbon

Catalysts ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 7
Author(s):  
Emmanuel Kweinor Tetteh ◽  
Sudesh Rathilal
Keyword(s):  
Activated Carbon ◽  
Photocatalytic Degradation ◽  
Oxygen Demand ◽  
Freundlich Isotherm ◽  
Reaction Rate Constant ◽  
Coefficient Of Determination ◽  
Bromophenol Blue ◽  
Blue Dye ◽  
Order Kinetic ◽  
Co Precipitation

This study presents a hybridized photocatalyst with adsorbate as a promising nanocomposite for photoremediation of wastewater. Photocatalytic degradation of bromophenol blue (BPB) in aqueous solution under UV-irradiation of wavelength 400 nm was carried out with TiO2 doped with activated carbon (A) and clinoptilolite (Z) via the co-precipitation technique. The physiochemical properties of the nanocomposite (A–TiO2 and Z–TiO2) and TiO2 were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier-transform infrared (FTIR) spectroscopy. Results of the nanocomposite (A–TiO2 and Z–TiO2) efficiency was compared to that with the TiO2, which demonstrated their adsorption and synergistic effect for the removal of chemical oxygen demand (COD) and color from the wastewater. At an optimal load of 4 g, the photocatalytic degradation activity (Z–TiO2 > A–TiO2 > TiO2) was found favorably by the second-order kinetic model. Consequently, the Langmuir adsorption isotherms favored the nanocomposites (Z–TiO2 > A–TiO2), whereas that of the TiO2 fitted very well on the Freundlich isotherm approach. Z–TiO2 evidently exhibited a high photocatalytic efficacy of decomposition over 80% of BPB (COD) at reaction rate constant (k) and coefficient of determination (R2) values of 5.63 × 10−4 min−1 and 0.989, respectively.

scholarly journals Iron-modified activated carbon derived from agro-waste for enhanced dye removal from aqueous solutions

Heliyon ◽  
2021 ◽  
pp. e07191
Author(s):  
Fateme Barjasteh-Askari ◽  
Mojtaba Davoudi ◽  
Maryam Dolatabadi ◽  
Saeid Ahmadzadeh
Keyword(s):  
Activated Carbon ◽  
Aqueous Solutions ◽  
Dye Removal ◽  
Modified Activated Carbon

Role of microporosity and surface functionality of activated carbon in methylene blue dye removal from water

2013 ◽  
Vol 30 (12) ◽  
pp. 2228-2234 ◽  
Author(s):  
Mohammad Asadullah ◽  
Mohammad Shajahan Kabir ◽  
Mohammad Boshir Ahmed ◽  
Nadiah Abdul Razak ◽  
Nurul Suhada Abdur Rasid ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Dye Removal ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Surface Functionality

scholarly journals Removal of Methylene Blue from Waste Water Using Activated Carbon Prepared from Rice Husk

2012 ◽  
Vol 60 (2) ◽  
pp. 185-189 ◽  
Author(s):  
Mohammad Arifur Rahman ◽  
S. M. Ruhul Amin ◽  
A. M. Shafiqul Alam
Keyword(s):  
Waste Water ◽  
Methylene Blue ◽  
Activated Carbon ◽  
Aqueous Solutions ◽  
Rice Husk ◽  
Flow Rate ◽  
Activated Carbons ◽  
Low Cost ◽  
Waste Water Treatment ◽  
Blue Dye

The possible utilization of rice husk activated carbon as an adsorbent for the removal of methylene blue dye from aqueous solutions has been investigated. In this study, activated carbons, prepared from low-cost rice husk by sulfuric acid and zinc chloride activation, were used as the adsorbent for the removal of methylene blue, a basic dye, from aqueous solutions. Effects of various experimental parameters, such as adsorbent dosage and particle size, initial dye concentration, pH and flow rate were investigated in column process. The maximum uptakes of methylene blue by activated rice husk carbon at optimized conditions (particle sizes: 140 ?m; Flow rate: 1.4 mL/min; pH: 10.0; initial volume of methylene blue: 50 mL and initial concentration of methylene blue: 4.0 mg/L etc.) were found to 97.15%. The results indicate that activated carbon of rice husk could be employed as low-cost alternatives to commercial activated carbon in waste water treatment for the removal of basic dyes. This low cost and effective removal method may provide a promising solution for the removal of crystal violet dye from wastewater.DOI: http://dx.doi.org/10.3329/dujs.v60i2.11491 Dhaka Univ. J. Sci. 60(2): 185-189, 2012 (July)

Removal of dyes from aqueous solutions using activated carbon prepared from rice husk residue

2015 ◽  
Vol 73 (5) ◽  
pp. 1122-1128 ◽  
Author(s):  
Yaxin Li ◽  
Xian Zhang ◽  
Ruiguang Yang ◽  
Guiying Li ◽  
Changwei Hu
Keyword(s):  
Activated Carbon ◽  
Aqueous Solutions ◽  
Rice Husk ◽  
Dye Removal ◽  
Neutral Red ◽  
Batch Adsorption ◽  
Dye Wastewater ◽  
Dye Molecules ◽  
Major Mode ◽  
Pseudo Second Order

The treatment of dye wastewater by activated carbon (AC) prepared from rice husk residue wastes was studied. Batch adsorption studies were conducted to investigate the effects of contact time, initial concentration (50–450 mg/L), pH (3–11) and temperature (30–70 °C) on the removal of methylene blue (MB), neutral red, and methyl orange. Kinetic investigation revealed that the adsorption of dyes followed pseudo-second-order kinetics. The results suggested that AC was effective to remove dyes, especially MB, from aqueous solutions. Desorption studies found that chemisorption by the adsorbent might be the major mode of dye removal. Fourier transform infrared results suggested that dye molecules were likely to combine with the O–H and P=OOH groups of AC.

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