Preparation of Activated Carbon from Salix psammophila Wood with Potassium Hydroxide as Activation Agent

doi:10.11924/j.issn.1000-6850.casb14120151

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (22): 26-31.doi: 10.11924/j.issn.1000-6850.casb14120151

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Preparation of Activated Carbon from Salix psammophila Wood with Potassium Hydroxide as Activation Agent

Zhu Yahong^1,2, Sun Quan^2,3, Zhu Mingqiang⁴, Wang Rui¹

(¹Weinan Normal University, Weinan Shaanxi 714000; ²School of Agriculture, Ningxia University, Yinchuan 750021;³Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in North-western China of Ministry of Education, Yinchuan 750021; ⁴College of Forestry, Northwest A&F University, Yangling Shaanxi 712100)

Received:2014-12-23 Revised:2015-07-10 Accepted:2015-04-24 Online:2015-08-20 Published:2015-08-20

Abstract

Abstract: Activated carbon is a kind of porous carbon with adsorption simple substance, and has been widely used in food processing, military chemistry, environmental protection, etc. Through the utilization of Salix psammophila wood, the author selected potassium hydroxide as the activating agent, prepared sand willow wood activated carbon, and investigated the effect of microwave irradiation, activator concentration, liquid-solid ratio, dipping time, radiation time, radiation power and other factors on the adsorption properties of activated carbon prepared by orthogonal optimization of the results of single factor test. The optimum technological condition for preparing sand willow wood activated carbon through activation of potassium hydroxide was: liquid-solid ratio 4:1, soaking time 18 h, irradiation power 560 W, irradiation time 20 min; under this condition, the activated carbon iodine adsorption value was 1011.01 mg/g, reaching the GB/T 13803.2—1999 standard.

Zhu Yahong,Sun Quan,Zhu Mingqiang and Wang Rui. Preparation of Activated Carbon from Salix psammophila Wood with Potassium Hydroxide as Activation Agent[J]. Chinese Agricultural Science Bulletin, 2015, 31(22): 26-31.

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Preparation of Activated Carbon from Salix psammophila Wood with Potassium Hydroxide as Activation Agent

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