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鋯改性玉米苞葉強(qiáng)化吸附水體中的四環(huán)素

發(fā)布時(shí)間:2018-11-06 18:04
【摘要】:以農(nóng)業(yè)廢棄物玉米苞葉為原料,用氯氧化鋯對(duì)其進(jìn)行改性,用于去除水體中的四環(huán)素。采用SEM、FTIR對(duì)改性前后的玉米苞葉進(jìn)行了表征,并研究了溶液初始pH、溫度等因素對(duì)四環(huán)素吸附的影響。結(jié)果表明:改性過程使玉米苞葉表面結(jié)構(gòu)發(fā)生變化,顯著提高了其對(duì)四環(huán)素的吸附量。在30℃,四環(huán)素溶液初始pH=5的條件下,吸附量為54.1 mg/g。在293~313 K的溫度范圍內(nèi),吸附量隨溫度的升高而升高,等溫吸附曲線符合Freundlich模型;吸附過程符合偽二級(jí)動(dòng)力學(xué)模型。
[Abstract]:Corn bract was modified with zirconium chloride to remove tetracycline from water. The effects of the initial pH, temperature on the adsorption of tetracycline were studied by means of SEM,FTIR. The results showed that the surface structure of maize bracts was changed and the adsorption of tetracycline was significantly increased during the modification. At 30 鈩,

本文編號(hào):2315066

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