天然改性斜沸石脱氨研究

IF 1 4区化学 Q4 CHEMISTRY, MULTIDISCIPLINARY

Journal of The Serbian Chemical Society Pub Date : 2022-01-01 DOI:10.2298/jsc211110051g

Aytaç Günal, Burcu Erdoğan

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引用次数: 0

摘要

本研究采用阳离子交换法和酸活化法测定斜发沸石不同阳离子组成对氨(NH3)吸附性能的影响。采用热重(TG)、差热分析(DTA)、x射线衍射(XRD)、x射线荧光(XRF)和氮吸附等技术对斜沸石样品进行表征。由于离子交换和酸活化，结构中可交换阳离子的数量、类型和位置对热性能和NH3去除率有显著影响。在298 K ~ 100 kPa条件下获得了氨吸附等温线。此外，比较了本研究中斜沸石样品的NH3吸附量(3.823 ~ 5.372 mmol g-1)与其他材料(1.77 ~ 12.2 mmol g-1)在结构和结构上的差异。

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Ammonia removal by natural modified clinoptilolite

In this study, cation exchange and acid activation processes were applied to determine the effects of different cationic compositions of clinoptilolite on ammonia (NH3) adsorption properties. Thermogravimetric (TG), differential thermal analysis (DTA), X-ray diffraction (XRD), X-ray fluorescence (XRF) and nitrogen adsorption techniques were used for the characterization of the clinoptilolite samples. As a result of ion exchange and acid activation, the amount, type, and location of exchangeable cations in the structure significantly affected the thermal properties as well as NH3 removal efficiency. Ammonia adsorption isotherms were obtained at 298 K up to 100 kPa volumetrically. In addition, NH3 adsorption capacities of the clinoptilolite samples within this study (3.823 to 5.372 mmol g-1) were compared with those of the other materials (1.77 to 12.2 mmol g-1) in terms of their textural and structural differences.

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来源期刊

Journal of The Serbian Chemical Society 化学-化学综合

CiteScore

1.80

自引率

0.00%

发文量

审稿时长

1 months

期刊介绍： The Journal of the Serbian Chemical Society -JSCS (formerly Glasnik Hemijskog društva Beograd) publishes articles original papers that have not been published previously, from the fields of fundamental and applied chemistry: Theoretical Chemistry, Organic Chemistry, Biochemistry and Biotechnology, Food Chemistry, Technology and Engineering, Inorganic Chemistry, Polymers, Analytical Chemistry, Physical Chemistry, Spectroscopy, Electrochemistry, Thermodynamics, Chemical Engineering, Textile Engineering, Materials, Ceramics, Metallurgy, Geochemistry, Environmental Chemistry, History of and Education in Chemistry.