Adsorption kinetics and isotherms of berberine by ZSM-5 molecular sieves from Cortex Phellodendron

Liu, Yunlong; Guo, Jie; Zhuo-bing, Xiao; Peng, Dazhao; Song, Ke

doi:10.1007/s11144-019-01703-9

Cited by 7 publications

(4 citation statements)

References 37 publications

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“…3 Similarly, the adsorption capacity of berberine on ZSM-5 molecular sieves reached the maximum at pH 8 and decreased with the decrease in pH. 38 However, MIL-101(Fe) synthesized in this study is suitable for the removal of berberine under acidic conditions, which is favorable for its practical application.…”

Section: Resultsmentioning

confidence: 76%

Removal of Berberine from Wastewater by MIL-101(Fe): Performance and Mechanism

Wang

Liu

et al. 2020

ACS Omega

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The water contamination from pharmaceuticals and personal care products (PPCPs) has attracted worldwide attention in recent years because of its threat to public health. Berberine is a typical anti-inflammatory medicine and berberine wastewater is difficult to be treated due to its high toxicity, poor biodegradability, and high acidity. Metal–organic frameworks would be a good choice to remove berberine from wastewater due to its advantages of high specific surface area, ultrahigh porosity, and structural and functional tunability. In this study, MIL-101(Fe) was synthesized and used for the removal of berberine from water. Experimental results indicated that MIL-101(Fe) showed promising characteristics when berberine was adsorbed in acidic wastewater. The high concentration of chloride in berberine wastewater could promote the adsorption of berberine by MIL-101(Fe). Fitting of batch equilibrium data showed that MIL-101(Fe) had a maximum adsorption capacity of 163.93 mg/g for berberine removal at pH 7, and the berberine sorption on MIL-101(Fe) followed the pseudo-second-order model. Furthermore, the associate mechanism for berberine removal was proposed by characterizing the material and theoretical calculation. The X-ray power diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS) analysis showed that no chemical reaction occurred during the adsorption of berberine by MIL-101(Fe). Also, the theoretical calculation results indicated that π–π interactions may play the main role in the adsorption of berberine onto MIL-101(Fe). The findings of this study suggest that MIL-101(Fe) is a promising sorbent for berberine removal from wastewater.

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Section: Resultsmentioning

confidence: 76%

Removal of Berberine from Wastewater by MIL-101(Fe): Performance and Mechanism

Wang

Liu

et al. 2020

ACS Omega

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“…The negative value of ΔG indicated that the process was spontaneous. The negative value of ΔS seemed to violate the principle of entropy increase, but this principle is only applicable in a thermodynamically isolated system, so this also indicated that heat was exchanged between the adsorption process and the external environment 13 . Therefore, the adsorption of RosA on NK-109 resin was a spontaneous exothermic process, with both physical and chemical adsorption 35 .…”

Section: Adsorption Thermodynamic Studiesmentioning

confidence: 99%

“…As a porous material, zeolite molecular sieve has the characteristics of regular and uniform pore structure, high specific surface area and high hydrothermal stability. Liu, Y. et al 13 used ZSM-5 molecular sieve to adsorb berberine in Phellodendron amurense extract and found that the elution rate of berberine was 98.73 , and ZSM-5 had greater purification capacity and reusability. This research had laid a theoretical foundation for the application of zeolite molecular sieves in the field of enrichment and purification of natural product active ingredients.…”

Section: Introductionmentioning

confidence: 99%

Studies on Adsorption Kinetics and Thermodynamics of Macroporous Resin for Rosmarinic Acid

Zhang

Bai

et al. 2021

J. Oleo Sci.

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This experiment treated perilla seeds with different concentrations of NaCl solution to enrich and purify their rosmarinic acid (RosA). The results showed that low concentrations of salt (0-20 mmol/L) promoted seed germination, while high concentrations (> 20 mmol/L) inhibited germination. When the salt concentration was 20 mmol/L, the germination rate was the highest. The content of RosA in germinated perilla seeds was 3.5 mg/g, which was 3.5 times as much as that in the seeds without germination. The RosA was purified using NK-109 macroporous resin and its adsorption kinetics, isotherms and thermodynamics were determined. The adsorption kinetics showed that the adsorption behavior of RosA in NK-109 resin conformed to the pseudo-second-order kinetic model. The model for RosA in the NK-109 resin exhibited Langmuir adsorption based on a spontaneous exothermic process according to its adsorption thermodynamics, which included both physical and chemical adsorption. The optimized process conditions were as follows: the loading concentration of 0.04 mg/mL, loading volume of 40 mL, 70% methanol as the eluent with the volume of 60 mL, and the purity of RosA was 42.1%.

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“…2 These arguments show that the removal of excessive amounts of antibiotics from industrial and municipal sewage is a significant challenge. One of the most effective methods of their depletion from wastewater is the sorption process (immobilization of the antibiotic molecules on the surface of various adsorbents, e.g., activated carbons or chars, 4 mineral clays, 5 amorphous silica, 6 or zeolites 7 ). Its efficiency is strongly affected not only by the properties of the target pollutant and parameters of the wastewater (temperature, pH, presence of other pollutants, etc.)…”

Section: Introductionmentioning

confidence: 99%

Unraveling the Origin of Enhanced Activity of the Nb₂O₅/H₂O₂ System in the Elimination of Ciprofloxacin: Insights into the Role of Reactive Oxygen Species in Interface Processes

Wolski

Sobańska

Muńko

et al. 2022

ACS Appl. Mater. Interfaces

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The overlooked role of reactive oxygen species (ROS), formed and stabilized on the surface of Nb2O5 after H2O2 treatment, was investigated in the adsorption and degradation of ciprofloxacin (CIP), a model antibiotic. The contribution of ROS to the elimination of CIP was assessed by using different niobia-based materials in which ROS were formed in situ or ex situ. The formation of ROS was confirmed by electron paramagnetic resonance (EPR) and Raman spectroscopy. The modification of the niobia surface charge by ROS was monitored with zeta potential measurements. The kinetics of CIP removal was followed by UV–vis spectroscopy, while identification of CIP degradation products and evaluation of their cytotoxicity were obtained with liquid chromatography–mass spectrometry (LC-MS) and microbiological studies, respectively. Superoxo and peroxo species were found to significantly improve the efficiency of CIP adsorption on Nb2O5 by modifying its surface charge. At the same time, it was found that improved removal of CIP in the dark and in the presence of H2O2 was mainly determined by the adsorption process. The enhanced adsorption was confirmed by infrared spectroscopy (IR), total organic carbon measurements (TOC), and elemental analysis. Efficient chemical degradation of adsorbed CIP was observed upon exposure of the Nb2O5/H2O2 system to UV light. Therefore, niobia is a promising inorganic adsorbent that exhibits enhanced sorption capacity toward CIP in the presence of H2O2 under dark conditions and can be easily regenerated in an environmentally benign way by irradiation with UV light.

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Adsorption kinetics and isotherms of berberine by ZSM-5 molecular sieves from Cortex Phellodendron

Cited by 7 publications

References 37 publications

Removal of Berberine from Wastewater by MIL-101(Fe): Performance and Mechanism

Removal of Berberine from Wastewater by MIL-101(Fe): Performance and Mechanism

Studies on Adsorption Kinetics and Thermodynamics of Macroporous Resin for Rosmarinic Acid

Unraveling the Origin of Enhanced Activity of the Nb₂O₅/H₂O₂ System in the Elimination of Ciprofloxacin: Insights into the Role of Reactive Oxygen Species in Interface Processes

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Adsorption kinetics and isotherms of berberine by ZSM-5 molecular sieves from Cortex Phellodendron

Cited by 7 publications

References 37 publications

Removal of Berberine from Wastewater by MIL-101(Fe): Performance and Mechanism

Removal of Berberine from Wastewater by MIL-101(Fe): Performance and Mechanism

Studies on Adsorption Kinetics and Thermodynamics of Macroporous Resin for Rosmarinic Acid

Unraveling the Origin of Enhanced Activity of the Nb2O5/H2O2 System in the Elimination of Ciprofloxacin: Insights into the Role of Reactive Oxygen Species in Interface Processes

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Product

Resources

About

Unraveling the Origin of Enhanced Activity of the Nb₂O₅/H₂O₂ System in the Elimination of Ciprofloxacin: Insights into the Role of Reactive Oxygen Species in Interface Processes