Ingenious control of adsorbed oxygen species to construct dual reaction centers ZnO@FePc photo-Fenton catalyst with high-speed electron transmission channel for PPCPs degradation

Qian, Hengli; Yu, Guanjie; Hou, Qidong; Nie, Yifan; Bai, Chuanyunlong; Bai, Xinyu; Wang, Haozhi; Mei, Ju

doi:10.1016/j.apcatb.2021.120064

Cited by 60 publications

(18 citation statements)

References 36 publications

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“…The two peaks related to the Zn 2p 3/2 and Zn 2p 1/2 were observed at 1044.9 eV and 1021.9, respectively. 10,23,40,48 No signicant change in the position of these two peaks aer immersing in MeB and FLU dyes. Aer adsorption, the XPS C 1s spectrum envelope was deconvoluted, as illustrated in Fig.…”

Section: Mechanisms Of Adsorption and Photocatalysismentioning

confidence: 99%

“…[1][2][3][5][6][7] Among these methods, adsorption and photocatalytic degradation are intensively used, as these methods are considered facile and efficient towards a broad spectrum of contaminants, and due to the availability of several materials that can be utilized as adsorbents and photocatalysts. [8][9][10][11][12][13][14][15] However, it is hard to nd effective materials that can be used as adsorbents and photocatalysts simultaneously.…”

Section: Introductionmentioning

confidence: 99%

“…Metal-organic frameworks (MOFs) such as zeolitic imidazolate frameworks (ZIFs) are porous materials with the potential for various applications, including energy production and drug delivery. 10,[16][17][18][19][20][21][22][23][24][25][26][27][28][29] ZIFs-based materials such as ZIF-8 (zinc-based ZIFs) were reported as an effective adsorbent for organic dyes and carbon dioxide (CO 2 ). 22,30,31 They can be classied to (1) pure ZIF-8; (2) nanoparticles modied ZIF-8 such as ZnO@ZIF-8; 32,33 and (3) ZIF8-derived ZnO loaded carbon (ZnO@N-doped C).…”

Section: Introductionmentioning

confidence: 99%

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Hierarchical porous zeolitic imidazolate frameworks (ZIF-8) and ZnO@N-doped carbon for selective adsorption and photocatalytic degradation of organic pollutants

2022

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Section: Mechanisms Of Adsorption and Photocatalysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hierarchical porous zeolitic imidazolate frameworks (ZIF-8) and ZnO@N-doped carbon for selective adsorption and photocatalytic degradation of organic pollutants

2022

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“…On the other hand, negligible degradation was observed for both catalysts under visible-light irradiation, as can be seen in Figure 7b, which may be attributed to low light absorption by the catalyst. Furthermore, Ju and Hou [59] prepared the photocatalyst FePc@ZnO by impregnation of FePc (Figure 6) onto semiconducting ZnO. The authors studied the photo-Fenton-type degradation of IBU (Figure 5) in the presence of the catalyst, using H 2 O 2 as the oxidant and a visible-light Xe lamp (330 W) as the irradiation source.…”

Section: Photochemical Degradationmentioning

confidence: 99%

Oxidative Degradation of Pharmaceuticals: The Role of Tetrapyrrole-Based Catalysts

et al. 2021

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Nowadays, society’s widespread consumption of pharmaceutical drugs and the consequent accumulation of such compounds or their metabolites in effluents requires the development of efficient strategies and systems that lead to their effective degradation. This can be done through oxidative processes, in which tetrapyrrolic macrocycles (porphyrins, phthalocyanines) deserve special attention since they are among the most promising degradation catalysts. This paper presents a review of the literature over the past ten years on the major advances made in the development of oxidation processes of pharmaceuticals in aqueous solutions using tetrapyrrole-based catalysts. The review presents a brief discussion of the mechanisms involved in these oxidative processes and is organized by the degradation of families of pharmaceutical compounds, namely antibiotics, analgesics and neurological drugs, among others. For each family, a critical analysis and discussion of the fundamental roles of tetrapyrrolic macrocycles are presented, regarding both photochemical degradative processes and direct oxidative chemical degradation.

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“…Several methods such as adsorption and degradation (via catalysis, photocatalysis, chemical degradation, microbial and enzymatic) and encapsulation can remove the dye from the wastewater [1][2][3][5][6][7] . Among these methods, adsorption and photocatalytic degradation are intensively used, as these methods are considered facile, efficient towards a broad spectrum of contaminants, and availability of several materials that can be utilized adsorbents and photocatalysts [8][9][10][11][12][13][14][15] . However, it is hard to find effective materials that can be used as adsorbents and photocatalysts simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical Porous Zeolitic Imidazolate Frameworks (ZIF-8) and ZnO@N-doped Carbon for Selective Adsorption and Photocatalytic Degradation of Organic Pollutants

Abdelhamid

Soliman

Abdel‐Wahab

2022

Preprint

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Removing organic contaminants such as dyes from water is essential to purify wastewater. Herein, zeolitic imidazolate frameworks-8 (ZIF-8) and ZnO@N-doped C are effective adsorbent and photocatalysts for the adsorption and degradation of organic dyes. The materials showed effective and selective adsorption toward anionic dyes such as methyl blue (MeB) dye in the presence of fluorescein (FLU) dye. The adsorption capacities of ZnO@N-doped C for MeB and FLU dyes are 900 mg/g and 100 mg/g, respectively. According to UV–Vis diffuse reflectance spectra (DRS) data, ZnO@N-doped C has a lower bandgap (2.07 eV) than ZIF-8 (4.34 eV) and ZnO (3.12 eV). Thus, ZnO@N-doped C serves as an effective photocatalyst for the degradation of both dyes under UV exposure. The degradation efficiency capacity of the dye (50 mg/L) is > 90 % using 200 mg/L of the photocatalyst. The mechanism of adsorption and photocatalysis is investigated. The photodegradation pathway of the dye involved the generation of oxidative hydroxy radicals (OH•), which can degrade the dyes. The degradation products of FLU were recorded using mass spectrometry.

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Ingenious control of adsorbed oxygen species to construct dual reaction centers ZnO@FePc photo-Fenton catalyst with high-speed electron transmission channel for PPCPs degradation

Cited by 60 publications

References 36 publications

Hierarchical porous zeolitic imidazolate frameworks (ZIF-8) and ZnO@N-doped carbon for selective adsorption and photocatalytic degradation of organic pollutants

Hierarchical porous zeolitic imidazolate frameworks (ZIF-8) and ZnO@N-doped carbon for selective adsorption and photocatalytic degradation of organic pollutants

Oxidative Degradation of Pharmaceuticals: The Role of Tetrapyrrole-Based Catalysts

Hierarchical Porous Zeolitic Imidazolate Frameworks (ZIF-8) and ZnO@N-doped Carbon for Selective Adsorption and Photocatalytic Degradation of Organic Pollutants

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