高嶺石對鹽酸四環(huán)素的吸附模型與熱力學(xué)研究-綜合性實驗(參考版)
2025-08-08 17:54本頁面
【正文】 參考文獻(xiàn)[1] Boxall ABA, Fogg LA, Blackwell PA, Kay P, Pemberton EJ, Croxford A. Veterinary medicines in the environment [J]. Rev. Environ. Contam. Toxicol, 2004. 180(6):191.[2] DiazCruz MS, Lopez de Alda MJ, Barcelo D. Environmental behavior and analysis of veterinary and human drugs in soils, sediments and sludge[J]. TracTreads in Analytical Chemistry, 2003, 22(6):340351.[3] Teuber M. Veterinary use and antibiotic resistance [J]. Curr. Opin. Microbiol, 2001, 4(5):493499.[4] 成思敏, 吳博揚, 楊羽斯, 沈大輝, 杜巍, 謝函芮, 吳宏海. 2013. 蒙脫石對鹽酸四環(huán)素吸附特性的實驗研究[J]. 巖石礦物學(xué)雜志, 2013, 32(6): 925~ 929. [5] Gu C, Karthikeyan KG. Interaction of tetracycline with aluminum and iron hydrous oxides [J]. Environ. Sci. Technol., 2005, 39: 26602667.[6]高 鵬, 莫測輝, 李彥文, 吳小蓮, 鄒 星, 黃顯東, [J]. 環(huán)境科學(xué), 2011, 32(6): 1740~1744. [7] Chang PH, Li Z, Jiang WT, Jean JS. Adsorption and intercalation of tetracycline by swelling clay minerals [J]. Appl. Clay Sci., 2009, 46(1):2736. [8] OECD. OECD guidelines for the testing of chemicals, test guideline106: adsorptiondesorption using a batch equilibrium method [S]. Revised Draft Document, Paris: OECD, 2000, 145.[9]Chang PH, Jean JS, Jiang WT, Li Z. Mechanism of tetracycline sorption on rectorite [J]. Colloid Surface A: Physicochemical and Engineering Aspects, 2009, 339(13):9499.[10]Von Oepen B., Kordel W., Klein W. Sorption of nonpolar and polar pounds to soils: Processes, measurements and experience with the applicability of the modified OECDguideline 106 [J]. Chemosphere, 1991, 22(34): 285304. [11]Parolo ME, Savini MC, Vall233。此外，支撐電解質(zhì)對TC的吸附影響較大，進(jìn)一步說明離子交換等靜電作用的重要貢獻(xiàn)，但因表面電荷不高，致使高嶺石對四環(huán)素的總吸附量不高。需要注意的是，當(dāng)四環(huán)素濃度較高時，吸附熱力學(xué)參數(shù)ΔG為絕對增大的負(fù)值，四環(huán)素濃度越高，ΔG絕對值越大，說明鹽酸四環(huán)素的自發(fā)傾向越明顯。圖7. 不同電解質(zhì)陽離子濃度對高嶺石吸附鹽酸四環(huán)素的影響3結(jié)論 高嶺石對鹽酸四環(huán)素的吸附最符合Freundlich模型。以Ca2+為例，隨著Ca2+離子濃度的升高, 高嶺石對鹽酸四環(huán)素的吸附量逐漸低，當(dāng)Ca2+ mol/ L時, 其對高嶺石吸附TC的影響明顯增大, 由此推斷當(dāng)Ca2+ , 陽離子Ca2+與TC離子的競爭吸附中Ca2+處于優(yōu)勢, 從而被迅速吸附在高嶺石表面, 使得高嶺石吸附TC的位點大大減少, 從而明顯地
研究報告相關(guān)推薦
鄂ICP備17016276號-1