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磷在氧化锆-碳纳米管复合材料上的吸附研究

宗恩敏 ,  魏丹 ,  还中科 ,  彭渡 ,  万海勤 ,  郑寿荣 ,  许昭怡

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引用本文: 宗恩敏, 魏丹, 还中科, 彭渡, 万海勤, 郑寿荣, 许昭怡. 磷在氧化锆-碳纳米管复合材料上的吸附研究[J]. 无机化学学报, 2013, 29(5): 965-972. doi: 10.3969/j.issn.1001-4861.2013.00.154 shu
Citation:  ZONG En-Min, WEI Dan, HUAN Zhong-Ke, PENG Du, WAN Hai-Qin, ZHENG Shou-Rong, XU Zhao-Yi. Adsorption of Phosphate by Zirconia Functionalized Multi-walled Carbon Nanotubes[J]. Chinese Journal of Inorganic Chemistry, 2013, 29(5): 965-972. doi: 10.3969/j.issn.1001-4861.2013.00.154 shu

磷在氧化锆-碳纳米管复合材料上的吸附研究

    通讯作者: 许昭怡,E-mail:zhaoyixu@nju.edu.cnTel:(025)89680370
  • 基金项目:

    国家自然科学基金(No.21077050, 21277069) (No.21077050, 21277069)

    教育部“长江学者和创新团队发展计划”(No.IRT1019) (No.IRT1019)

    国家“863”计划(No.2012AA062607) 和江苏省六大人才高峰项目资助项目。 (No.2012AA062607)

摘要: 采用水热合成法成功制备了氧化锆-碳纳米管复合材料,并研究了对磷的吸附行为。表征结果表明,碳纳米管经氧化锆修饰后仍具备介孔结构;氧化锆粒子可均匀分散在碳纳米管表面。吸附实验结果表明,氧化锆粒子的粒径越小,氧化锆对磷的标化平衡吸附量越高,吸附速率越快。磷在氧化锆-碳纳米管复合材料上的吸附等温线符合Freundlich等温吸附模式,属于优先吸附,吸附动力学可用拟二级动力学模型描述。降低离子强度和溶液pH可促进磷的吸附,共存离子对磷吸附具有抑制作用,影响顺序依次为F->NO3-≈SO42-,其中F-影响最大,NO3-和SO42-次之。

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  • 收稿日期:  2012-12-05
  • 网络出版日期:  2013-01-17
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