scholarly journals Corn cob based activated carbon preparation using microwave assisted potassium hydroxide activation for sea water purification

2018 ◽  
Vol 1120 ◽  
pp. 012017 ◽  
Author(s):  
R Farma ◽  
R Fadilah ◽  
Awitdrus ◽  
N K Sari ◽  
E Taer ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Water Purification ◽  
Potassium Hydroxide ◽  
Sea Water ◽  
Corn Cob ◽  
Microwave Assisted

scholarly journals EFEK VARIASI DAYA IRADIASI GELOMBANG MIKRO TERHADAP KARBON AKTIF TONGKOL JAGUNG UNTUK PENJERNIHAN AIR

2018 ◽  
Vol 15 (1) ◽  
pp. 56
Author(s):  
Raysa Fadillah ◽  
Rakhmawati Farma ◽  
Awitdrus Awitdrus
Keyword(s):  
Activated Carbon ◽  
Surface Morphology ◽  
Microwave Irradiation ◽  
Potassium Hydroxide ◽  
Sea Water ◽  
Chemical Activation ◽  
Corn Cob ◽  
Irradiation Power ◽  
Activating Agent

The power of microwave irradiation affect the quality of activated carbon. In this research the activated carbon has been made of biomass of corn cob by using carbonization process, chemical activation using potassium hydroxide as the activating agent and microwave irradiation power was variated for 360 watt, 450 watt, 630 watt, dan 720 watt in 15 minutes. The surface morphology of activated carbon for the sample KA720 produced lots of pores more than that of the sample KA360, KA450, and KA630. The sea water that has been mixed with activaed carbon using microwave irradiation power of 720 watt with temperatur of 26oC, and pH of 7,41. 

Optimizing the preparation of activated carbon from Lugi pressurized gasifier (LPG) slag by microwave-assisted potassium hydroxide activation

2017 ◽  
Vol 61 ◽  
pp. 82-87
Author(s):  
Hongbin Wang ◽  
Wei Tan ◽  
Guizhen Li ◽  
Jinhui Peng ◽  
Veeriah Jegatheesan ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Potassium Hydroxide ◽  
Microwave Assisted

Insights into the modeling, characterization and adsorption performance of mesoporous activated carbon from corn cob residue via microwave-assisted H3PO4 activation

2020 ◽  
Vol 21 ◽  
pp. 100688 ◽  
Author(s):  
Ali H. Jawad ◽  
Mondira Bardhan ◽  
Md. Atikul Islam ◽  
Md. Azharul Islam ◽  
Syed Shatir A. Syed-Hassan ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Corn Cob ◽  
Microwave Assisted ◽  
Adsorption Performance ◽  
Mesoporous Activated Carbon ◽  
H3po4 Activation

scholarly journals Factor Affecting Microwave Assisted Preparation of Activated Carbon from Local Raw Materials

2015 ◽  
Vol 47 ◽  
pp. 15-23 ◽  
Author(s):  
Mohamed A. Elsayed ◽  
O.A. Zalat
Keyword(s):  
Activated Carbon ◽  
Surface Area ◽  
Microwave Power ◽  
Bet Surface Area ◽  
Maximum Adsorption Capacity ◽  
Optimum Conditions ◽  
Corn Cob ◽  
Carbon Yield ◽  
Microwave Assisted ◽  
Impregnation Ratio

This study illustrates the preparation of activated carbon (AC) from Corn Cob (CC) via microwave assisted K2CO3 activation. The effect of operational parameters including chemical impregnation ratio (0.25-1.25), microwave power (90 – 800 W) and irradiation time (1 – 9 min) on the carbon yield and adsorption capability of derived Corn Cob Activated Carbon (CCAC) were investigated. The results indicated that the optimum conditions were as follows: microwave power of 600W, microwave radiation time of 5 min and the impregnation ratio of K2CO3 was 0.75 g/g. The optimum conditions resulted in CCAC with a maximum adsorption capacity of 275.32 mg/g for MB and carbon yield of 27.09%. The BET surface area, Langmuir surface area and total pore volume were determined to be 765 m2/g, 834 m2/g and 0.43 cm3/g, respectively.

scholarly journals Study on Adsorption Properties of Modified Corn Cob Activated Carbon for Mercury Ion

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4483
Author(s):  
Yuyingnan Liu ◽  
Xinrui Xu ◽  
Bin Qu ◽  
Xiaofeng Liu ◽  
Weiming Yi ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Photoelectron Spectroscopy ◽  
Adsorption Process ◽  
Physical Adsorption ◽  
Raw Material ◽  
Order Kinetic ◽  
Mercury Ions ◽  
Corn Cob ◽  
Adsorption Time ◽  
X Ray

In this study, corn cob was used as raw material and modified methods employing KOH and KMnO4 were used to prepare activated carbon with high adsorption capacity for mercury ions. Experiments on the effects of different influencing factors on the adsorption of mercury ions were undertaken. The results showed that when modified with KOH, the optimal adsorption time was 120 min, the optimum pH was 4; when modified with KMnO4, the optimal adsorption time was 60 min, the optimal pH was 3, and the optimal amount of adsorbent and the initial concentration were both 0.40 g/L and 100 mg/L under both modified conditions. The adsorption process conforms to the pseudo-second-order kinetic model and Langmuir model. Scanning electron microscopy and energy-dispersive X-ray spectroscopy (SEM-EDS), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and Zeta potential characterization results showed that the adsorption process is mainly physical adsorption, surface complexation and ion exchange.

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