疏水多孔硅制备及其对水中有机污染物的吸附

doi:10.3866/PKU.WHXB201203151

物理化学学报 >> 2012, Vol. 28 >> Issue (06): 1432-1438.doi: 10.3866/PKU.WHXB201203151

疏水多孔硅制备及其对水中有机污染物的吸附

孙涛, 郭悦, 李文翠, 陆安慧

精细化工国家重点实验室, 大连理工大学化工与环境生命学部化工学院, 辽宁大连 116024

收稿日期:2011-12-15 修回日期:2012-03-09 发布日期:2012-05-17
通讯作者: 陆安慧 E-mail:anhuilu@dlut.edu.cn
基金资助:
国家自然科学基金(20873014, 21073026)和新世纪优秀人才支持计划(NCET-09-0254)资助项目

Synthesis of Hydrophobic Porous Silica for Removal of Organic Contaminations from Water

SUN Tao, GUO Yue, LI Wen-Cui, LU An-Hui

State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Faculty of Chemical, Environmental and Biological Science and Technology, Dalian University of Technology, Dalian 116024, Liaoning Province, P. R. China

Received:2011-12-15 Revised:2012-03-09 Published:2012-05-17
Contact: LU An-Hui E-mail:anhuilu@dlut.edu.cn
Supported by:
The project was supported by the National Natural Science Foundation of China (20873014, 21073026) and Program for New Century Excellent Talents in Universities of China (NCET-09-0254).

摘要/Abstract

摘要： 以硅酸钠为硅源, 盐酸为催化剂, 三甲基氯硅烷(TMCS)为表面改性剂, 经溶胶-凝胶和表面改性过程制备出一种疏水性多孔硅材料. 采用傅里叶变换红外(FTIR)光谱仪、接触角分析仪、氮气物理吸附仪和扫描电子显微镜(SEM)对其结构和性质进行表征. 结果表明: 所制备的多孔硅具有分等级孔道结构(中孔-大孔), 比表面积为566 m²·g^-1, 孔体积高达2.28 cm³·g^-1, 多孔硅与水的接触角为156°, 显示出超疏水特征. 对甲苯、汽油、柴油和润滑油的吸附量均可高达自身质量的14 倍, 丰富的孔道使其在几分钟内即可达到饱和吸附. 这种多孔硅在汽油/水混合体系中对汽油具有较高的选择性, 同时具有良好的再生能力. 经正己烷萃取再生后, 多孔硅仍能基本保持初始吸附容量. 此方法制备的多孔硅材料在吸附分离污水中的有机物和溢油处理方面具有很好的应用前景.

关键词: 多孔硅, 疏水性, 吸附, 有机污染物, 再生

Abstract: A hydrophobic porous silica material was successfully synthesized using sodium silicate as silica source, hydrochloric acid as catalyst, and trimethylchlorosilane (TMCS) as a surface modifying agent, through sol-gel and surface modification processes. The structure and properties of the fabricated porous silica were analyzed by Fourier-transform infrared (FTIR) spectroscopy, contact-angle analyzer, liquid N2 adsorption, and scanning electron microscopy (SEM). The porous silica displayed a hierarchical porous structure and was super-hydrophobic, with contact angle as high as 156°. Specific surface area and pore volume were determined to be 566 m²·g^-1 and 2.28 cm³·g^-1, respectively. Moreover, the porous silica could adsorb up to 14 times its own mass of toluene, gasoline, diesel, and lube oil. The abundant mesopores and macropores allowed adsorption saturation to be reached within several minutes. In addition, the porous silica was extremely hydrophobic in gasoline-water mixture and thus preferentially adsorbed organic compounds other than water. This is an important requisite of good recyclability. It was verified that, following extraction with n-hexane, the regenerated porous silica retained its initial adsorption capacity. This porous silica, with good selectivity and excellent regeneration capability for oil removal, could find novel applications in the adsorption and separation of organics from polluted water.

Key words: Porous silica, Hydrophobic property, Adsorption, Organic contamination, Regeneration

MSC2000:

O647

孙涛, 郭悦, 李文翠, 陆安慧. 疏水多孔硅制备及其对水中有机污染物的吸附[J]. 物理化学学报, 2012, 28(06): 1432-1438.

SUN Tao, GUO Yue, LI Wen-Cui, LU An-Hui. Synthesis of Hydrophobic Porous Silica for Removal of Organic Contaminations from Water[J]. Acta Phys. -Chim. Sin., 2012, 28(06): 1432-1438.

参考文献

(1) Wang, D.; McLaughlin, E.; Pfeffer, R. Chem. Eng. J. 2011, 168, 1201.

(2) Adebajo, M. O.; Frost, R. L.; Kloprogge, J. T.; Carmody, O.; Kokot, S. J. Porous. Mater. 2003, 10, 159.

(3) Zhang, Y, L.; Wei, S.; Liu, F. J.; Du, Y. C.; Liu, S.; Ji, Y. Y.; Yokoib, T.; Tatsumib, T.; Xiao, F. S. Nano Today 2009, 4, 135.

(4) Yue, Z.; Mangun, C. L.; Economy, J.; Kemme, P.; Cropek, D.; Maloney, S. Environ. Sci. Technol. 2001, 35, 2844.

(5) Bouwer, E. J.; Crowe, P. B. J. Am. Water Work. Ass. 1988, 80, 82.
(6) Karakutuk, I.; Okay, O. React. Funct. Polym. 2010, 70, 585.

(7) Duong, H.; Burford, R. P. J. Appl. Polym. Sci. 2006, 99, 360.

(8) Ceylan, D.; Dogu. S.; Karacik, B.; Yakan, S. D.; Okay, O. S.; Okay, O. Environ. Sci. Technol. 2009, 43, 3846.

(9) Tanobe1, V. O. A.; Sydenstricker1, T. H. D.; Amico, S. C.; Vargas, J. V. C.; Zawadzki, S. F. J. Appl. Polym. Sci. 2009, 111, 1842.

(10) Viraraghavan, T.; Mathavan, G. N. Water Pollut. Res. J. Can. 1990, 25, 73.
(11) Solisio, C.; Lodi, A.; Converti, A.; Borghi, M. D. Water. Res. 2002, 36, 899.

(12) Panpanit, S.; Visvanathan, C. J. Membr. Sci. 2001, 184, 59.

(13) Inagaki, M.; Kawahara, A.; Nishi, Y.; Iwashita, N. Carbon 2002, 40, 1487.

(14) Gui, X. C.; Li, H. B.; Wang, K. L. Acta Materialia 2011, 59, 4804.
(15) Srinivasan, A.; Viraraghavan, T. Bioresour. Technol. 2010, 10, 16594.
(16) Sokker, H. H.; El-Sawy, N. M.; Hassan, M. A.; El-Anadouli, B. E. J. Hazard. Mater. 2011, 190, 359.

(17) Li, A.; Sun, H. X.; Tan, D. Z.; Fan, W. J.; Wen, S. H.; Qing, X. J.; Li, G. X.; Li, S. Y.; Deng, W. Q. Energy Environ. Sci. 2011, 4, 2062.

(18) Gan, L. H.; Li, G. M.; Yue, T. Y.; Zhang, M.; Wu, J. W.; Chen, L. W. Acta Phys. -Chim. Sin. 1995, 15, 588. [甘礼华, 李光明, 岳天仪, 张明, 吴建文, 陈龙武. 物理化学学报, 1995, 15, 588.]
(19) Chen, L. W.; Gan, L. H.; Hou, X. H. Acta Phys. -Chim. Sin. 2003, 19, 819. [陈龙武, 甘礼华, 侯秀红. 物理化学学报, 2003, 19, 819.]
(20) Li, G. A.; Zhu, T. L.; Ye, L. Y.; Deng, Z. X.; Zhang, Y. J.; Jiao, F. Acta Phys. -Chim. Sin. 2009, 25, 1811. [李贵安, 朱庭良, 叶录元, 邓仲勋, 张亚娟, 焦飞. 物理化学学报, 2009, 25, 1811.]
(21) Venkateswara, R. A.; Nilsen, E.; Einarsrud, M. A. J. Non. Cryst. Solids 2001, 296, 165.

(22) Tao, S. Y.; Wang, Y. C.; An, Y. L. J. Mater. Chem. 2011, 21,11901.

(23) Zhu, J. J.; Yao, J.; Lu, X. M.; Ding, J. L.; Du, X. H.; Xie, J. M. J. Chin. Chem. Soc. 2009, 37, 512. [朱建军, 姚晶, 吕晓萌, 丁建林, 杜飞虎, 谢吉民. 硅酸盐学报, 2009, 37, 512.]
(24) Hering, N.; Schriber, K.; Reidel, R.; Lichtenberger, O.; Woltersodorf, J. Appl. Organomater. Chem. 2001, 15, 879.

(25) Rao, A. P.; Rao, A. V.; Pajonk, G. M.; Shewale, P. M. J. Mater. Sci. 2007, 42, 8418.

(26) Gurav, J. L.; Rao, A. V.; Nadargi, D. Y.; Park, H. H. J. Mater. Sci. 2010, 45, 503.

(27) Zhu, J. J.; Xie, J. M.; Lü, X. M.; Jiang, D. L. Colloids Surfaces A: Physicochem. Eng. Aspects 2009, 342, 97.

[1]	刘志成, 伊晓东, 高飞雪, 谢在库, 韩布兴, 孙予罕, 何鸣元, 杨俊林. 绿色碳科学：双碳目标下的科学基础——第292期“双清论坛”学术综述[J]. 物理化学学报, 2023, 39(1): 2112029 -0 .
[2]	常明凯, 胡娜, 李遥, 鲜东帆, 周万强, 王静一, 时燕琳, 刘春立. Eu(Ⅲ)在蒙脱石上的吸附及碳酸根和磷酸根对其吸附的影响[J]. 物理化学学报, 2022, 38(3): 2003031 - .
[3]	赵康宁, 李潇, 苏东. 高熵纳米合金在电化学催化中的应用[J]. 物理化学学报, 2021, 37(7): 2009077 - .
[4]	孙建川, 王旭辉, 陈帅奇, 廖艳清, 郜阿旺, 胡雨昊, 杨涛, 徐向宇, 王颖霞, 宋家庆. 由单层薄水铝石制备的活性氧化铝处理水中氟离子[J]. 物理化学学报, 2021, 37(10): 1911009 - .
[5]	王文元, 张杰夫, 李喆, 邵翔. 单原子分散的Au/Cu(111)表面合金的表面结构与吸附性质[J]. 物理化学学报, 2020, 36(8): 1911035 - .
[6]	孙冠卿, 易宗霖, 魏涛. 胶体颗粒稳定的界面及胶体颗粒在界面的相互作用[J]. 物理化学学报, 2020, 36(10): 1910005 - .
[7]	罗新杰, 张熙, 冯玉军. 液体弹珠：制备策略、物理性质及应用探索[J]. 物理化学学报, 2020, 36(10): 1910007 - .
[8]	韩萌茹,周亚男,周旋,储伟. 通过g-C₃N₄担载MNi₁₂ (Fe, Co, Cu, Zn)纳米团簇调节甲烷化[J]. 物理化学学报, 2019, 35(8): 850 -857 .
[9]	姜哲,于飞,马杰. 石墨烯基吸附剂的设计及其对水中抗生素的去除[J]. 物理化学学报, 2019, 35(7): 709 -724 .
[10]	何妍,李豪,周莉,徐婷,彭昌军,刘洪来. 新型芳香三嗪超交联多孔聚合物去除水溶液中甲基橙[J]. 物理化学学报, 2019, 35(3): 299 -306 .
[11]	徐向宇,廖艳清,孙建川,王旭辉,陈帅奇,吕志,宋家庆. 活性氧化铝及其再生氧化铝对水中氟离子的吸附[J]. 物理化学学报, 2019, 35(3): 317 -326 .
[12]	谷雨星,杨娟,汪的华. CO₂熔盐电化学转化碳材料的电化学特性[J]. 物理化学学报, 2019, 35(2): 208 -214 .
[13]	段园,陈明树,万惠霖. O₂和CO在Ni(111)表面的吸附活化[J]. 物理化学学报, 2018, 34(12): 1358 -1365 .
[14]	刘强,韩永,曹云君,李小宝,黄武根,余毅,杨帆,包信和,李毅敏,刘志. 利用原位APXPS与STM研究H₂在ZnO(10${\rm{\bar 1}}$0)表面的活化[J]. 物理化学学报, 2018, 34(12): 1366 -1372 .
[15]	姚婵,李国艳,许彦红. 富羧酸基团的共轭微孔聚合物:结构单元对孔隙和气体吸附性能的影响[J]. 物理化学学报, 2017, 33(9): 1898 -1904 .

疏水多孔硅制备及其对水中有机污染物的吸附

Synthesis of Hydrophobic Porous Silica for Removal of Organic Contaminations from Water

PDF

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

推荐阅读 0