吸附
X射线光电子能谱
氨基磺酸
催化作用
化学工程
材料科学
核化学
化学
有机化学
工程类
作者
Mahmoud M. Kaid,Ahmed Gebreil,S.A. El-Hakam,Awad I. Ahmed,Amr Awad Ibrahim
出处
期刊:RSC Advances
[The Royal Society of Chemistry]
日期:2020-01-01
卷期号:10 (26): 15586-15597
被引量:44
摘要
Herein we introduce an effective approach for incorporating sulfamic acid (SA) into HKUST-1. The synthesized materials have been characterized using XRD, XPS, BET, FT-IR, SEM, EDX and TEM. The X-ray diffraction pattern of SA@HKUST-1 is analogous to that of parent HKUST-1 in line shape and d-spacing, proving that chemical modification could be obtained without damage to structural solidity. The XPS spectra confirmed successful sulfonation, due to the single S 2p peak being attributable to SO3H groups at 168 eV. Catalytic efficiency was studied for 7-hydroxy-4-methyl coumarin and 3,4-dihydropyrimidinone synthesis and it was found to be highly dependent on the amount of SA loaded over HKUST-1. Moreover, the adsorptive removal activity of some common organic and inorganic pollutants from water has been studied. To fully understand the adsorption process, the effects of initial dye concentration, pH of solution, adsorbent dosage, contact time and temperature on the adsorption process were successfully studied. Under the optimum conditions 10 wt% SA@HKUST-1 was able to reach the maximum adsorption capacity for Pb2+ (298 mg g-1) and Malachite green (290 mg g-1). Hopefully, this will facilitate research on improving the prospective use of MOFs for future applications.
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