Activated boron nitride as an effective adsorbent for metal ions and organic pollutants.

Activated boron nitride as an effective adsorbent for metal ions and organic pollutants.
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活化氮化硼作为金属离子和有机污染物的有效吸附剂

DOI:
10.1038/srep03208
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发表时间:
2013-11-13
期刊:
影响因子:
4.6
通讯作者:
Tang, Chengchun
Tang, Chengchun
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Li, Jie;Xiao, Xing;Xu, Xuewen;Lin, Jing;Huang, Yang;Xue, Yanming;Jin, Peng;Zou, Jin;Tang, Chengchun

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报道了一种新型的活性氮化硼(BN)作为水和空气中污染物的有效吸附剂。活化BN的合成通过一个简单的结构导向的方法,使我们能够控制的表面积,孔体积,晶体缺陷和表面基团。所得BN具有2078 m2/g的超高比表面积、1.66 cm 3/g的大孔容和位于~ 1.3、~ 2.7和~ 3.9 nm处的多峰微孔/介孔结构。   更重要的是,新型活性BN对水中的多种金属离子(Cr 3+、Co2+、Ni 2+、Ce 3+、Pb 2+)和有机污染物(四环素、甲基橙子、刚果红),以及空气中的挥发性有机物(苯)表现出优异的吸附性能。活化BN的优异的可重复使用性也已被证实。所有这些特性使活化BN成为一种有前途的环境修复材料。
Novel activated boron nitride (BN) as an effective adsorbent for pollutants in water and air has been reported in the present work. The activated BN was synthesized by a simple structure-directed method that enabled us to control the surface area, pore volume, crystal defects and surface groups. The obtained BN exhibits an super high surface area of 2078 m2/g, a large pore volume of 1.66 cm3/g and a special multimodal microporous/mesoporous structure located at ~ 1.3, ~ 2.7 and ~ 3.9 nm, respectively. More importantly, the novel activated BN exhibits an excellent adsorption performance for various metal ions (Cr3+, Co2+, Ni2+, Ce3+, Pb2+) and organic pollutants (tetracycline, methyl orange and congo red) in water, as well as volatile organic compounds (benzene) in air. The excellent reusability of the activated BN has also been confirmed. All the features render the activated BN a promising material suitable for environmental remediation.
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发表时间: 2004-02-01
影响因子: 3.3
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