- 期刊
- OpenAccess
CO_2-imprinted Sustainable Carbon Derived from Sunflower Heads for Highly Effective Capture of CO_2 from Flue Gas
摘要
In this work, novel and cheap CO_2 imprinted adsorbents were synthesized on the surface of activated carbon derived from sunflower heads by surface imprinting technique using ethanedioic acid and acrylamide as template molecule and functional monomer, respectively. To obtain CO_2 imprinted adsorbents with optimal properties, we studied the effects of ratio of KOH to sunflower-based activated carbon, carbon dosage and adsorption temperature, and found that the optimal conditions were alkali carbon ratio of 0.75:1, carbon dosage of 0.75 g, and adsorption temperature of 20°C. Under these conditions, maximum CO_2 adsorption capacity of the adsorbents can attain 1.71 mmol g^(-1). The selective adsorption performance of the adsorbents for CO_2 was studied in the presence of H_2O as well as in simulated flue gas. In addition, the adsorbents after adsorption can be effectively regenerated by N_2 purge at 120°C. After five adsorption/desorption experiments, the CO_2 adsorption capacity only decreased 11%. The results showed that sustainable and cheap CO_2 imprinted adsorbents have good adsorption, selectivity and regeneration properties, which are worth being further studied and applied in CO_2 capture.
延伸閱讀
- Carvalho, M. E. A., Castro, P. R. D. C. E., Junior, M. V. D. C. F., & Mendes, A. C. C. M. (2016). Are plant growth retardants a strategy to decrease lodging and increase yield of sunflower?. Comunicata Scientiae, 7(1), 154-159. https://doi.org/10.14295/CS.v7i1.1286
- 蔡秉泓（2010）。Effects on the Growth of Sunflowers by Adding Different Soil Amendments in Cadmium Contaminated Soil〔碩士論文，國立屏東科技大學〕。華藝線上圖書館。https://doi.org/10.6346/NPUST.2010.00106
- Santos, C. A. C. D., Peixoto, C. P., Vieira, L. L., Carvalho, E. V., & Peixoto, V. A. B. (2012). Action of the interaction cinetina, butyric acid and gibberellic acid on the initial growth and flowering of sunflower. Comunicata Scientiae, 3(4), 310-315. https://www.airitilibrary.com/Article/Detail?DocID=21775133-201212-201605200016-201605200016-310-315
- 吳采薇（2014）。CO2 Capture Using PZ/DETA Mixture from Flue Gas of Natural Gas Power Plants in a Rotating Packed Bed〔碩士論文，國立清華大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0016-2912201413510268
- 張小虹（2016）。Sunflower Movement Image as an Aesthetic Event。文化研究，(23)，49-78。https://doi.org/10.6752/JCS.201609_(23).0004