聚(1,5-二氨基萘)改性粉煤灰去除水中六价铬的研究

Q4 Materials Science

Journal of Surface Science and Technology Pub Date : 2018-12-03 DOI:10.18311/JSST/2018/20171

D. T. Nguyen, Minh X. Vu, H. Nguyen

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引用次数: 1

摘要

用氢氧化钠溶液对粉煤灰进行处理，使其转化为类沸石结构。在氢氧化钠处理的粉煤灰（TFA）表面原位化学氧化合成了聚（1，5-二氨基萘）[p（1，5-DAN）]，形成了p（1，4-DAN）/TFA复合材料。用p（1，5-DAN）/TFA复合材料作为一种新型的吸附剂从水溶液中去除Cr（VI）离子。根据Langmuir等温线模型计算的最大吸附容量（在pH为2.98K时）为4.4mg/g。这一结果表明，p（1,5-DAN）/TFA在环境处理中是一种很有前途的Cr（VI）离子吸附剂。

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Surface Modification of Fly Ash by Poly(1,5-Diaminonaphthalene) for Removal of Hexavalent Chromium from Water

The Fly Ash (FA) was treated by NaOH solution in order to transform into the zeolite-like structure. Poly(1,5- diaminonaphthalene) [p(1,5-DAN)] was synthesized via in-situ chemical oxidation on the surface of NaOH-Treated Fly Ash (TFA) to form p(1,5-DAN)/TFA composite. The p(1,5-DAN)/TFA composite was used as a novel sorbent for removal of Cr(VI) ions from aqueous solutions. The maximum adsorption capacity (at pH 2, 298 K) calculated according to Langmuir isotherm model was 4.4 mg/g. This result suggested that p(1,5-DAN)/TFA was a promising adsorbent for Cr(VI) ions in the environmental treatment.

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Journal of Surface Science and Technology PHYSICS, APPLIED-

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期刊介绍： The Indian Society for Surface Science and Technology is an organization for the cultivation, interaction and dissemination of knowledge in the field of surface science and technology. It also strives to promote Industry-Academia interaction