Microwave‐assisted production of biochar from oil palm mesocarp fiber and its dye removal properties

2021 ◽  
Author(s):  
Muhammad Fakhrul Syukri Abd Aziz ◽  
Nur Fashya Musa ◽  
Ulises Sedran ◽  
Richard Pujro ◽  
Zainul Akmar Zakaria
Keyword(s):  
Oil Palm ◽  
Dye Removal ◽  
Microwave Assisted

scholarly journals Parametric Study on Microwave-Assisted Pyrolysis Combined KOH Activation of Oil Palm Male Flowers Derived Nanoporous Carbons

Materials ◽  
2020 ◽  
Vol 13 (12) ◽  
pp. 2876
Author(s):  
Napat Kaewtrakulchai ◽  
Kajornsak Faungnawakij ◽  
Apiluck Eiad-Ua
Keyword(s):  
Microwave Radiation ◽  
Oil Palm ◽  
Radiation Power ◽  
Operating Time ◽  
Bet Surface Area ◽  
Koh Activation ◽  
Nanoporous Carbons ◽  
Microwave Assisted ◽  
Activating Agent ◽  
Male Flowers

Oil palm male flowers (PMFs), an abundant agricultural waste from oil palm plantation in Thailand, have been utilized as an alternative precursor to develop nanoporous carbons (NPCs) via microwave-assisted pyrolysis combined potassium hydroxide (KOH) activation. The influences of relevant processing variables, such as activating agent ratio, microwave power, and activation time on the specific pore characteristics, surface morphology, and surface chemistry of PMFs derived nanoporous carbons (PMFCs) have been investigated to explore the optimum preparation condition. The optimum condition under a microwave radiation power of 700 W, activation holding time of 6 min, and activating agent ratio of 2:1 obtained the PMFC with the highest Brunauer–Emmett–Teller (BET) surface area and total pore volume approximately of 991 m2/g and 0.49 cm3/g, composed of a carbon content of 74.56%. Meanwhile, PMFCs have a highly microporous structure of about 71.12%. Moreover, activating agent ratio and microwave radiation power indicated a significant influence on the surface characteristics of PMFCs. This study revealed the potential of oil palm male flowers for the NPCs’ production via microwave-assisted KOH activation with a short operating-time condition.

scholarly journals Microwave-assisted synthesis of a viologen-based covalent organic polymer with redox-tunable polarity for dye adsorption

RSC Advances ◽  
2017 ◽  
Vol 7 (6) ◽  
pp. 3594-3598 ◽  
Author(s):  
Gobinda Das ◽  
Tina Skorjanc ◽  
Thirumurugan Prakasam ◽  
Selbi Nuryyeva ◽  
John-Carl Olsen ◽  
...  
Keyword(s):  
Redox State ◽  
Dye Removal ◽  
Dye Adsorption ◽  
Organic Polymer ◽  
Microwave Assisted Synthesis ◽  
Efficient Synthesis ◽  
Microwave Assisted ◽  
Menshutkin Reaction

We report the efficient synthesis, by microwave-assisted Menshutkin reaction, of a viologen-based covalent organic polymer, and the application of its different redox state in dye removal.

scholarly journals Disruption of Oil Palm Empty Fruit Bunches by Microwave-assisted Oxalic Acid Pretreatment

2017 ◽  
Vol 49 (3) ◽  
pp. 244 ◽  
Author(s):  
Nissa Nurfajrin Solihat ◽  
Fahriya Puspita Sari ◽  
Lucky Risanto ◽  
Sita Heris Anita ◽  
Fitria Fitria ◽  
...  
Keyword(s):  
Oxalic Acid ◽  
Oil Palm ◽  
Acid Pretreatment ◽  
Empty Fruit Bunches ◽  
Microwave Assisted

scholarly journals Solely Cellulose-based Adsorbent Derived from Oil Palm Empty Fruit Bunches for Dye Removal

REAKTOR ◽  
2020 ◽  
Vol 20 (3) ◽  
pp. 122-128
Author(s):  
Athanasia Amanda Septevani ◽  
Farhan Riza Afandi ◽  
Yulianti Sampora ◽  
Melati Septiyanti ◽  
Yenni Apriliani Devy ◽  
...  
Keyword(s):  
Oil Palm ◽  
Dye Removal ◽  
Surface Active Agent ◽  
Active Agent ◽  
Dye Adsorption ◽  
Adsorptive Capacity ◽  
Hydrolysis Method ◽  
Empty Fruit Bunches ◽  
Nano Cellulose ◽  
Nano Size

The purpose of this research is to determine the adsorption capability of micro and nano-cellulose derived from oil palm empty fruit bunch (EFB) as dye removal. Cellulose based adsorbents were successfully obtained from EFB in the form of microcellulose (eMC) via both delignification (D-eMC) and bleaching processes (B-eMC) as well as in nanocellulose (eNC) by using acid hydrolysis method and hence termed as delignified-eNC (D-eNC) and bleached-eNC (B-eNC) respectively. Dye adsorption test was carried out by UV-Spectrophotometer by comparing initial dye MO concentration (as a control solution) to the treated MO solution upon the addition of micro- and nano- cellulose based adsorbent. It was clear that the dye removal efficiency of micro-cellulose both D-eMC and B-eMC were lower than the nano-cellulose structures. The higher adsorptive capacity of nano-size cellulose compared to the micro-size cellulose was confirmed by the distinct presence of FTIR shifting peak of hydroxyl and sulfonyl groups. It was expected as the micro-size of cellulose would not be able to provide a good adsorptive capability of hydroxyl surface active agent to adsorb the dye. In the case of eNC, the result showed that D-eNC afforded a better dye adsorption than B-eNC. At the same concentration of eNC at 3 wt. %, D-eNC could adsorb at about 19.3% of MO while only 2.4% of MO could be removed by B-eNC. Finally, all of adsorbent could maintain pH and TDS within water quality specification. 

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