本文選題：柚子皮吸附劑　切入點：水中對羥基苯甲酸酯　出處：《環(huán)境科學(xué)與技術(shù)》2016年S2期 　論文類型：期刊論文

【摘要】：以廢柚子皮為原料制備了柚子皮吸附劑并將其用于去除水中對羥基苯甲酸酯新型污染物。經(jīng)FTIR和SEM表征發(fā)現(xiàn)柚子皮吸附劑具有緊湊的纖維組織結(jié)構(gòu),內(nèi)部存在大量的孔隙,富含羥基。系統(tǒng)考察了溶液的pH值,水中對羥基苯甲酸酯的初始濃度,吸附時間,吸附溫度對水中對羥基苯甲酸酯吸附性能的影響。結(jié)果表明:pH=6.5時,柚子皮吸附劑對水中對羥基苯甲酸酯的吸附效果最佳,飽和吸附量qm均大于660 mg/g;吸附過程可在20 min內(nèi)達(dá)到平衡。5次循環(huán)使用后柚子皮吸附劑對水中對羥基苯甲酸酯的吸附效率仍能保持95%以上,材料可以多次循環(huán)使用。
[Abstract]:The grapefruit peel adsorbent was prepared from waste pomelo peel and used to remove new pollutants of p-hydroxybenzoate in water. FTIR and SEM characterization showed that grapefruit peel adsorbent had compact fiber structure and a large number of pores. The effects of pH value of solution, initial concentration of p-hydroxybenzoate in water, adsorption time and adsorption temperature on the adsorption properties of p-hydroxybenzoate in water were investigated. The sorption effect of grapefruit peel adsorbent on p-hydroxybenzoate in water was the best. The saturated adsorption capacity QM was more than 660mg / g, and the adsorption efficiency of grapefruit peel adsorbent for water was still over 95%, and the material could be reused many times after the adsorption process reached equilibrium 5 times within 20 min. The adsorption efficiency of grapefruit peel adsorbent for water was over 95%.
【作者單位】： 浙江省寧波市鄞州中學(xué);
【分類號】：X52
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本文編號：1600422