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化工学报  2015 

低温条件下纳米腐殖酸-尿素配合物的制备及表征

DOI: 10.11949/j.issn.0438-1157.20150246, PP. 2725-2736

Keywords: 纳米腐殖酸-尿素配合物,响应面法,制备,优化,模型

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Abstract:

为确定纳米腐殖酸-尿素配合物形成工艺参数和物化性质,以纳米腐殖酸和尿素为原料,通过络合反应制备了70~90nm腐殖酸-尿素配合物,用响应面法优化制备纳米腐殖酸-尿素配合物最佳工艺参数为:反应温度47.6℃,反应时间1.81h,活化剂十二烷基硫酸钠浓度50.0%(质量),固液体摩尔比9:1,络合剂浓度0.14mol·L-1,尿素用量200mg,产率预测值91.2%,此条件下进行3组独立实验,产物产率为90.6%±0.9%,与模型的预测值吻合。拟合出响应值和影响因子间的二次关联方程模型。并用X射线衍射仪(XRD)、红外光谱仪(FTIR)、热重分析仪(TG)、扫描电镜(SEM)与吸附-脱附比表面仪(BET)等物理手段对产物晶型、组分、形貌大小及比表面积等进行表征。结果表明:配合物晶型完整纯度高,粒度大小均匀且分散性良好,粒径为70~90nm,比表面积189.85m2·g-1,平均孔径10.2nm,孔容0.86cm3·g-1,具有较高热稳定性。

References

[1]  Cheng Liang (程亮), Zhang Baolin (张保林), Hou Cuihong (侯翠红),Chen Keke (陈可可),Wang Jie (王杰), Shi Yalong (史亚龙). Preparation and characterization of nanoscale humic acid under high shearing condition [J]. CIESC Journal (化工学报), 2012, 63 (8): 2648-2654.
[2]  Cheng Liang (程亮), Zhang Baolin (张保林), Xu Li (徐丽), Hou Cuihong (侯翠红), Liu Guoji (刘国际). Thermal decomposition kinetics of humic acid [J]. CIESC Journal (化工学报), 2014, 65 (9):3470-3478.
[3]  Cheng Liang (程亮), Xu Li (徐丽), Liu Wei (刘伟), Zhang Baolin (张保林), Liu Guoji (刘国际). Efficient removal of phenol wastewater using nanoscale humic acid adsorbent in ultrasound aided [J]. Chemical Engineering (China) (化学工程), 2014, 42 (9): 6-12.
[4]  Cao Jilin (曹吉林), Liu Xiuwu (刘秀伍), Xue Lijing (薛丽静), et al. Phase equilibrium of the ternary NH4Cl-CO (NH2)2-H2O system at 25℃ and 35℃ [J]. J. Chem. Eng. Chinese Univ. (高校化学工程学报), 2007, 21 (5): 864-868.
[5]  Hong Yu (洪瑜), Liu Jinxia (刘锦霞), Liu Yue (刘越), Zhao Tiancheng (赵天成), Liu Ruliang (刘汝亮), Chen Chen (陈晨). Effect of different dicyandiamide rates on rice soil nitrogen leaching loss [J]. Journal of Soil and Water Conservation (水土保持学报), 2015, 29 (1): 116-120.
[6]  Zhao Jun (赵军), Dou Yuqing (窦玉青), Song Fupeng (宋付朋), Chen Gang (陈刚), Li Ni (李妮), Li Jiuwu (李久五). Effect of combined application of biological organic fertilizer and inorganic compound fertilizer on the tobacco profit and nitrogen use efficiency [J]. Journal of Plant Nutrition and Fertilizer (植物营养与肥料学报), 2014, 20 (3): 613-619.
[7]  Gao Decai (高德才), Zhang Lei (张蕾), Liu Qiang (刘强), Rong Xiangmin (荣湘民), Zhang Yuping (张玉平), Tian Chang (田昌). Application of biochar in dryland soil decreasing loss of nitrogen and improving nitrogen using rate [J]. Transactions of the Chinese Society of Agricultural Engineering (农业工程学报), 2014, 30 (6): 54-61.
[8]  Hu Xialin, Chen Qiqing, Jiang Lei, et al. Combined effects of titanium dioxide and humic acid on the bioaccumulation of cadmium in Zebrafish [J]. Environmental Pollution, 2011, 159: 1151-1158.
[9]  Li Na, Zhang Xiaoling, Chen Shutang, et al. Synthesis and characterization of CdS nanoparticles in the presence of oleic acid as solvent and stabilizer [J]. Journal of Physics and Chemistry of Solids, 2011, 72: 1195-1198.
[10]  Wang Y, Gao B Y, Xu X M, et al. The effect of total hardness and ionic strength on the coagulation performance and kinetics of aluminum salts to remove humic acid [J]. Chemical Engineering Journal, 2011, 160: 150-156.
[11]  Ko Ilwon, Davis Allen P, Kim Ju Yong, et al. Effect of contact order on the adsorption of inorganic arsenic species onto hematite in the presence of humic acid [J]. Journal of Hazardous Materials, 2007, 141: 53-60.
[12]  Cheng Shaoxin (成绍鑫), Wu Liping (武丽萍), Liu Yuqin (柳玉琴), Sun Shuhe (孙淑和), Wu Qihu (吴奇虎). Process development of humic acid and urea [J]. Humic Acid (腐殖酸), 1994, (4): 29-32.
[13]  Zeng Y P, Zhu X M, Yuan Y, Zhang X B, Ju S G. Molecular simulations for adsorption and separation of thiophene and benzene in Cu-BTC and IRMOF-1 metal-organic frameworks [J]. Sep. Purif. Technol., 2012, 95 (19): 149-156.
[14]  Cao Jilin (曹吉林), Bai Peng (白鹏), Wang Shichang (王世昌). Study on the phase equilibria of H3BO3-Na2SO4-NaCl-H2O system at 25℃ and 100℃ [J]. J. Chem. Eng. Chinese Univ. (高校化学工程学报), 1999, 13 (1): 1-4.
[15]  Chen Yu (陈玉), Xu Ying (徐颖), Feng Yueyang (冯岳阳). Optimizing extraction process of heavy metals in fly ash using saponins by response surface methodology [J]. CIESC Journal (化工学报), 2014, 65 (2): 701-711.
[16]  Jiang Shaojie (蒋绍阶), Feng Xinrui (冯欣蕊), Li Xiaoen (李晓恩), Jiang Shilong (蒋世龙). Preparation of PAC-PDMDAAC hybrid flocculant by response surface methodology and its characterization [J]. CIESC Journal (化工学报), 2014, 65 (2): 731-736.
[17]  Nelson A P, Farha O K, Mulfort K L, Hupp J T. Supercritical processing as a route to high internal surface areas and permanent microporosity in metal-organic framework materials [J]. J. Am. Chem. Soc., 2009, 131 (2): 458-460.
[18]  Li Y W, Yang R T. Hydrogen storage in metal-organic and covalent-organic frameworks by spillover [J]. AIChE Journal, 2008, 54 (1): 269-279.
[19]  Klimakow M, Klobes P, Thunemann A F, Rademann K, Emmerling F. Mechanochemical synthesis of metal-organic frameworks: a fast and facile approach toward quantitative yields and high specific surface areas [J]. Chem. Mater., 2010, 22 (18): 5216-5221.

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