scholarly journals MODIFICATION OF IRON OXIDE CATALYSTS SUPPORTED ON THE BIOMASS BASED ACTIVATED CARBON FOR DEGRADATION OF DYE WASTEWATER

2019 ◽  
Vol 7 (2) ◽  
pp. 164-168
Author(s):  
Shinta Amelia ◽  
Wahyudi Budi Sediawan ◽  
Zahrul Mufrodi ◽  
Teguh Ariyanto
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Iron Oxide ◽  
Negative Impact ◽  
Dye Wastewater ◽  
Fenton Reagent ◽  
Carbon Catalyst ◽  
Adsorption Method ◽  
Methylene Blue Degradation ◽  
Porous Activated Carbon

Methylene blue is one of the dyes in textile industries which has a negative impact on the environment. This compound is very stable, so it is difficult to degrade naturally. Methylene blue can be harmful to the environment if it is in a very large concentration, because it can increase the value of Chemical Oxygen Demand (COD) which can damage the balance of environment ecosystem. Adsorption method by using activated carbon as the adsorbent is one of the most efficient and effective techniques in dye removal due to its large adsorption capacity. However, the adsorption method using activated carbon only removes the pollutant compounds to other media or phases. Other method that can be used includes Advanced Oxidation Processes (AOPs). This method has the advantage of being able to degrade harmful compounds in the waste through oxidation (oxidative degradation) processes. One method of AOPs is the process by using Fenton reagents. This study was aimed to prepare and characterize iron oxide/porous activated carbon catalyst. The type of porous activated carbon used was carbon from biomass derived carbon with microporous character. This biomass carbon is obtained from renewable natural products, namely coconut shell.The kinetics and adsorption models in the material will be derived and evaluated from the research data. Based on the research, it can be concluded that catalytic degradation is very effective for degradation of dye wastewater. Methylene blue degradation increases with the use of Fe2O3/activated carbon catalyst and the addition of hydrogen peroxide as the Fenton reagent. In addition, the pore structure difference in the catalyst also had a significant effect on the methylene blue degradation reaction resulting in increased capacity of methylene blue degradation reactions.

Evenly Supported TiO2 on Activated Carbon Fiber and its Photocatalytic Degradation Property

2011 ◽  
Vol 239-242 ◽  
pp. 1637-1642
Author(s):  
Xue Wang ◽  
Qiu Fang Wu ◽  
Shao Feng Xuan
Keyword(s):  
Methylene Blue ◽  
Catalytic Activity ◽  
Activated Carbon ◽  
Carbon Fiber ◽  
Ph Value ◽  
Sol Gel ◽  
Supported Catalyst ◽  
Activated Carbon Fiber ◽  
Adsorption Method ◽  
Methylene Blue Degradation

Activated carbon fiber (ACF) supported TiO2photocatalyst was prepared by sol-gel-adsorption method. The state of TiO2supported on the ACF was observed using a scanning electron microscope. Photo catalytic activity of the catalyst was evaluated by degradation of methylene blue in water, and the ways in which the efficiency of methylene blue degradation was influenced by TiO2load content and pH value were investigated. The supported catalyst shows cooperative effect of ACF adsorption and TiO2catalytic activity, and the catalytic activity of the supported catalyst was basically unchanged after using for four times.

Methylene Blue Removal Using Foxtail Palm Fruits as Potential Activated Carbon

2020 ◽  
Vol 1010 ◽  
pp. 477-482
Author(s):  
Nik Raihan Nik Yusoff ◽  
Syafiqa Jauna Mohamed Jefry ◽  
Yin Teng Lai ◽  
Nurul Syazana Abdul Halim ◽  
Noor Syuhadah Subki
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Textile Industry ◽  
Contact Time ◽  
Dye Adsorption ◽  
Dye Wastewater ◽  
Palm Fruit ◽  
Water Users ◽  
Impregnation Time ◽  
Palm Fruits

Textile industry is commonly use dyes in colouring process which become the major dye wastewater source that leads to serious pollution in the environment. The disposed dyes can lead to serious harm to the water users and life in the aquatic because of the dye properties. Hence, the dye adsorption by activated carbon prepared from foxtail palm fruit was studied. The objectives of this study were: 1) to prepare activated carbon from foxtail fruit palm and 2) to study the effect of contact time, adsorbent dosage and initial concentration of dye usage toward the efficiency of the prepared activated carbon. Nitric acid was used as activating agent in this experiment, with impregnation time of overnight and 500 °C of 2.5 hours carbonization. The adsorption capability of foxtail fruit palm activated carbon as activated carbon was determined with the use of a dye called methylene blue. The results showed that 5 g of activated carbon was used to reduce 97.1% of 2 mg/L methylene blue with 150 minutes contact time. This result aligns with the SEM result which indicated that the produce activated carbon is rich with well-developed and irregular size of pores ranging between 1.585 μm to 7.556 μm. This study indicates that activated carbon from foxtail palm fruits could be utilized as an alternative activated carbon to treat dye wastewater.

Intraparticle diffusivity of methylene blue into porous activated carbon

1981 ◽  
Vol 27-27 (1) ◽  
pp. 610-615 ◽  
Author(s):  
K. Boki ◽  
S. Tanada ◽  
T. Matsui ◽  
T. Kuwahara ◽  
A. Kotani ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Intraparticle Diffusivity ◽  
Porous Activated Carbon

scholarly journals Effect ofCO2Flow Rate on the Pinang Frond-Based Activated Carbon for Methylene Blue Removal

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
S. G. Herawan ◽  
M. A. Ahmad ◽  
A. Putra ◽  
A. A. Yusof
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Carbon Content ◽  
Activated Carbons ◽  
Bet Surface Area ◽  
Dye Wastewater ◽  
Fixed Carbon ◽  
Activation Temperature ◽  
Flow Rates ◽  
High Level

Activated carbons are regularly used the treatment of dye wastewater. They can be produced from various organics materials having high level of carbon content. In this study, a novel Pinang frond activated carbon (PFAC) was produced at various CO2flow rates in the range of 150–600 mL/min at activation temperature of 800°C for 3 hours. The optimum PFAC sample is found on CO2flow rate of 300 mL/min which gives the highest BET surface area and pore volume of 958 m2/g and 0.5469 mL/g, respectively. This sample shows well-developed pore structure with high fixed carbon content of 79.74%. The removal of methylene blue (MB) by 95.8% for initial MB concentration of 50 mg/L and 72.6% for 500 mg/L is achieved via this sample. The PFAC is thus identified to be a suitable adsorbent for removing MB from aqueous solution.

scholarly journals Removal of Methylene Blue from Aqueous Solutions using Chemical Activated CarbonPrepared from Jackfruit (Artocarpusheterophyllus) Peel Waste

2014 ◽  
Vol 5 (1) ◽  
pp. 34-38 ◽  
Author(s):  
T.N.A. Tengku Hasbullah ◽  
O.S. Selaman ◽  
N.A. Rosli
Keyword(s):  
Methylene Blue ◽  
Activated Carbon ◽  
Aqueous Solutions ◽  
Chemical Activation ◽  
Dye Wastewater ◽  
Artocarpus Heterophyllus ◽  
Factors Affecting ◽  
Adsorption Performance ◽  
Industrial Sectors ◽  
Series Of Experiments

Dye wastewater generated is rated as the most polluting wastewater among all the industrial sectors. Adsorption using activated carbon (AC) has been proven to be effective to treat dye wastewater. In this study, jackfruit (Artocarpus heterophyllus) peel waste has been utilized for activated carbon (AC) preparation using chemical activation. This research attempts to study the factors affecting its adsorption performance. Series of experiments conducted consisted of the experiments studying the effect of initial dye concentration and also effect of adsorbent dosage. In the study, CAC showed adsorption capacity of 10.43 mg/g.

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