Effect of electron beam irradiation on durian‑peel‑based activated carbon for phenol removal
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서지정보
ㆍ발행기관 : 한국탄소학회
ㆍ수록지정보 : Carbon letters / 33권 / 4호
ㆍ저자명 : Major Jane Igbmno, Mohammad Khalid, Gunasunderi Raju, Nabisab Mujawar Mubarak, Rashmi Walvekar, Chantara Thevy Ratnam, Vishal Chaudhary, Gokana Mohana Rani
ㆍ저자명 : Major Jane Igbmno, Mohammad Khalid, Gunasunderi Raju, Nabisab Mujawar Mubarak, Rashmi Walvekar, Chantara Thevy Ratnam, Vishal Chaudhary, Gokana Mohana Rani
목차
Effect of electron beam irradiation on durian-peel-based activated carbon for phenol removalAbstract
1 Introduction
2 Methodology
2.1 Materials
2.2 Preparation of activated carbon
2.3 Determination of ash content
2.4 Determination of moisture content
2.5 Brunauer–Emmett–Teller surface area analysis
2.6 Adsorption experiment
2.7 Analytical methods
2.8 Experimental design
2.9 Characterization
3 Results and discussion
3.1 Characterization of adsorbent
3.2 Specific surface area
3.3 Adsorption modelling of phenol removal using DPAC
3.4 Optimization of phenol removal using DPAC
3.5 SEM and EDX
4 Conclusion
Anchor 21
Acknowledgements
References
영어 초록
This study investigated durian (Durio zibethinus) peels to produce powdered activated carbon (DPAC). The influence of process variables such as carbonization temperature, activation time, contact time, CO2 flow rate, and adsorption dosage was optimized using response surface methodology (RSM). A six-factor and two levels Box–Behnken design (BBD) was used to optimize the parameters. The independent variables were activation temperature (°C), duration (min), CO2 flow rate during the activation process (L/min), irradiation of adsorbent (kGy), irradiation duration (min), and adsorbent dosage (g) while phenol removal (mg/L) was the dependent variable (response). Following the observed correlation coefficient values, the design was fitted to a quadratic model (R2 = 0.9896). The optimal removal efficiency (97.25%) was observed at an activation temperature of 900 °C, activation time of 30 min, CO2 flow rate of 0.05 L/min, irradiation dose of 100 kGy, contact time of 35 min and adsorption dosage of 0.75 g. The optimal DPAC showed a BET surface of 281.33 m2/ g. The removal efficiency was later compared with a commercially available activated carbon which shows a 98.56% phenol removal. The results show that the durian peel could be an effective precursor for making activated carbon for phenol removal, and irradiation can significantly enhance surface activation.참고 자료
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