scholarly journals KARAKTERISTIK KARBON AKTIF DARI CANGKANG BUAH KARET MENGGUNAKAN AKTIVATOR H3PO4

2018 ◽  
Vol 2 (2) ◽  
pp. 1
Author(s):  
Meilianti Meilianti
Keyword(s):  
Activated Carbon ◽  
Optimum Condition ◽  
Phosphoric Acid

This research is purposed to determine the characteristic and adsorbtion ability of activated carbon which is made from rubber fruit shell with ativator phosphoric acid ( H3PO4 ). The carbonisation of activated carbon was carried out using furnace for 1 hour with temperature of 750oC. The next mashed and sieved with a size of 100 mesh. Then activated for 24 hours with H3PO4 solution with variation of concentration , 8%,  8.5%,  9%,  9.5% and    10%. As the result of characterisation, the lowest water degree wash content 10% with the value  3,25 % and lowest volatille metter from sample 10 % with the value 3,15 %. the lowest ash degree was from sample 8 % with the value 3,36 %. Maximum adsorbtion of iodine with sample 10  % with the value 947,25  mg/g . The optimum condition of activated carbon with activator phosphoric acis, which is produced in concentration 10%. Which at this concentration has moisture water degree of 3,25%, ash degree of 3,36%, volatille metter degree 3,15%, absorption iodine of 947.25 mg / g, and absorption metilene blue 98,95 mg/g.

scholarly journals Preparation of oil palm empty fruit bunch based activated carbon for adsorption of dye from aqueous solution

2019 ◽  
Vol 268 ◽  
pp. 06008
Author(s):  
Narisara Intarachandra ◽  
Sukum Siriworakon ◽  
Theerapol Sangmanee
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Activated Carbon ◽  
Optimum Condition ◽  
Phosphoric Acid ◽  
Oil Palm ◽  
Average Pore Size ◽  
Chemical Activation ◽  
Synthetic Wastewater ◽  
Empty Fruit Bunch

The objectives of this research are to determine an optimum condition for producing the activated carbon from oil palm empty fruit bunch (OPEFB) and used as an adsorbent to remove methylene blue (MB) dye from aqueous solution. Chemical activation by phosphoric acid (H3PO4) was used as a procedure to modify OPEFB, in which in this study the carbonization and activation were done simultaneously. The concentrations of phosphoric acid were varied from 20-60% by weight and carbonization temperature and time were varied from 500-800oC and 30-60 minutes, respectively. It was found that among the conditions used, the best condition for producing activated carbon was obtained when using 60% H3PO4 and carbonized at 500oC for 30 minute. The produced activated carbon had a surface area of 362.5 m2/g and average pore size of 2.94 nm. Methylene blue and Iodine numbers were 13.62 and 356.46 mg/g, respectively, which were comparable to the results of commercial activated carbon; i.e. 6.96 and 778.7 mg/g. The optimum condition for the adsorption of MB from synthetic wastewater by produced activated carbon was found at pH 8-12 with equilibrium time of 4 hours. Results demonstrated that the equilibrium data was well fitted by Freundlich isotherm model with the isotherm constants KF of 7.75 mg/g and 1/n of 0.13.

Activated carbon from molasses efficiency for Cr(VI), Pb(II) and Cu(II) adsorption: A mechanistic study

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Activated Carbon ◽  
Phosphoric Acid ◽  
Sugar Industry ◽  
Chemical Activation ◽  
High Surface ◽  
High Surface Area ◽  
Mechanistic Study ◽  
Acid Mixture ◽  
Maximum Adsorption Capacity ◽  
Good Potential

Activated carbon was prepared from molasses, which are natural precursors of vegetable origin resulting from the sugar industry. A simple elaboration process, based on chemical activation with phosphoric acid, was proposed. The final product, prepared by activation of molasses/phosphoric acid mixture in air at 500°C, presented high surface area (more than 1400 m2/g) and important maximum adsorption capacity for methylene blue (625 mg/g) and iodine (1660 mg/g). The activated carbon (MP2(500)) showed a good potential for the adsorption of Cr(VI), Cu(II) and Pb(II) from aqueous solutions. The affinity for the three ions was observed in the following order Cu2+ Cr6+ Pb2+. The process is governed by monolayer adsorption following the Langmuir model, with a correlation coefficient close to unity.

Preparation and Characterization of Activated Carbon Fibers from Jute Fibers by Phosphoric Acid Activation

2012 ◽  
Vol 184-185 ◽  
pp. 1110-1113 ◽  
Author(s):  
Li Fen He ◽  
Qi Xia Liu ◽  
Tao Ji ◽  
Qiang Gao
Keyword(s):  
Activated Carbon ◽  
Carbon Fiber ◽  
Phosphoric Acid ◽  
Carbon Fibers ◽  
Activated Carbon Fibers ◽  
Optimum Conditions ◽  
Activation Time ◽  
Activation Temperature ◽  
Jute Fibers ◽  
Activating Agent

Various jute-based activated carbon fibers were prepared by using jute fibers as raw materials and phosphoric acid as activating agent. The effects of three main factors such as concentration of activating agent, activation temperature and activation time on the yield and adsorptive properties of active carbon fibers were investigated via orthogonal experiments. The surface physical morphology of jute-based activated carbon fiber was also observed by using Scanning Electron Microscope. Results showed that the optimum conditions were phosphoric acid concentration of 4 mol/L, activation temperature of 600 °C and activation time of 1h. The yield, iodine number and amount of methylene blue adsorption of the active carbon fiber prepared under optimum conditions were 37.99 %, 1208.87 mg/g and 374.65 mg/g, respectively.

Dihydroxybenzene isomers electrochemical sensor based on activated carbon sensitive material activated by mechanochemistry and low-dosage phosphoric acid

2021 ◽  
Author(s):  
Xuan Yang ◽  
Chenlu He ◽  
Yu Lin ◽  
Yijuan Qiu ◽  
Pengfei Li ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Phosphoric Acid ◽  
Electrochemical Sensor ◽  
Sensitive Material ◽  
Dihydroxybenzene Isomers ◽  
Low Dosage

Dihydroxybenzene isomers electrochemical sensor based on bamboo activated carbon (MCPBAC) sensitive material activated by mechanochemistry and low-dosage phosphoric acid was fabricated in this work. The sensor modified by MCPBAC with...

Preparation of bamboo-based mesoporous activated carbon by phosphoric acid activation

Carbon ◽  
2014 ◽  
Vol 72 ◽  
pp. 429 ◽  
Author(s):  
Motohide Hata ◽  
Yoshimasa Amano ◽  
Masami Aikawa ◽  
Motoi Machida ◽  
Fumio Imazeki
Keyword(s):  
Activated Carbon ◽  
Phosphoric Acid ◽  
Acid Activation ◽  
Mesoporous Activated Carbon ◽  
Phosphoric Acid Activation

scholarly journals DEVELOPMENT MODEL FOR REMOVAL TOTAL IRON IN “GAMBUT WATER” FOR DRINKING WATER

2015 ◽  
Vol 1 (2) ◽  
pp. 170
Author(s):  
Sutrisno ◽  
Elizabeth Tjahjadarmawan ◽  
Fifi
Keyword(s):  
Drinking Water ◽  
Activated Carbon ◽  
Optimum Condition ◽  
Aqueous Media ◽  
Analytical Techniques ◽  
Total Iron ◽  
Calcium Hypochlorite ◽  
Adsorption Technology ◽  
Adsorption Processes ◽  
Small Model

 ABSTRACT This research is focused on characterization of activated carbon from solid waste CPO industries and applying for treatments of gambut water for iron removal in aqueous media. Key parameters in the present study include TSS, DO, pH and total phenol is also determinated. Methods of sampling and analytical techniques for measuring key parameters are by using extended method. The small model has been developed by combining of the composting and adsorption technology.  The coagulant material such as filter alum, soda caustic, and calcium hypochlorite in any ratios are varied and the optimum condition is achieved. The activated carbon is used as adsorbent by using column model. The overall results show that after coagulation and adsorption processes the total iron, TSS, DO and pH are under threshold levels (Indonesian Regulation) and suitable for drinking water meanwhile other parameters are still uncovered in this investigation. Tentatively, it can be concluded that the proposed gambit water design has achieved the optimum condition. A further study on the improvement of the treatment design and service time for adsorption process is still in progress. Keywords : total iron, gambut water, activated carbon, combining model.

Fast Production of Activated Carbon from Pomegranate Peels by Combining Microwave Heating and Phosphoric Acid Activation for Paracetamol Adsorption

2021 ◽  
Author(s):  
Manel Zarroug ◽  
Souad Najar-Souissi ◽  
J. Angel Menéndez ◽  
Esther G. Calvo ◽  
Abdelmottaleb Ouederni
Keyword(s):  
Activated Carbon ◽  
Phosphoric Acid ◽  
Microwave Heating ◽  
Acid Activation ◽  
Phosphoric Acid Activation

Adsorption of Cationic Dyes on Dacryodes edulis Seeds Activated Carbon Modified Using Phosphoric Acid and Sodium Chloride

2020 ◽  
Vol 7 (4) ◽  
pp. 1151-1171 ◽  
Author(s):  
Chinenye Adaobi Igwegbe ◽  
Okechukwu Dominic Onukwuli ◽  
Joshua O. Ighalo ◽  
Patrick Ugochukwu Okoye
Keyword(s):  
Activated Carbon ◽  
Sodium Chloride ◽  
Phosphoric Acid ◽  
Cationic Dyes ◽  
Dacryodes Edulis
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