Facile, green encapsulation of cobalt tetrasulfophthalocyanine monomers in mesoporous silicas for the degradative hydrogen peroxide oxidation of azo dyes

Shen, Chensi; Wen, Yuezhong; Shen, Zhenlu; Wu, Jing; Liu, Weiping

doi:10.1016/j.jhazmat.2011.07.046

Cited by 33 publications

(5 citation statements)

References 27 publications

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“…Further, for 7/MCM-41 prepared at pH ¼ 12, the approximately 10% loss in activity was attributed to mechanical losses during the degradation process. 45…”

Section: Ionic Bindingmentioning

confidence: 99%

Inorganic helping organic: recent advances in catalytic heterogeneous oxidations by immobilised tetrapyrrolic macrocycles in micro and mesoporous supports

et al. 2013

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This review considers several aspects (synthetic procedures and, particularly, catalytic applications) of the recent literature (since 2000) regarding the immobilisation of tetrapyrrolic macrocycles (namely porphyrins and phthalocyanines) in micro (NaY and NaX zeolites) and mesoporous inorganic supports (M41S family), and their employment in catalysis, predominantly in oxidation. Emphasis is placed on photocatalysis, which is of importance in the degradation of pesticides, herbicides, health care, personal care and domestic care products, all of which represent a current major environmental concern. Pertinent reflections are presented on the nature of both synthetic

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“…Further, for 7/MCM-41 prepared at pH ¼ 12, the approximately 10% loss in activity was attributed to mechanical losses during the degradation process. 45…”

Section: Ionic Bindingmentioning

confidence: 99%

Inorganic helping organic: recent advances in catalytic heterogeneous oxidations by immobilised tetrapyrrolic macrocycles in micro and mesoporous supports

et al. 2013

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“…S11†). 46 Moreover, a plot of scan rate-normalized current versus scan rate ( ν ) (Fig. S12†) shows a shape typical of the electrochemical (EC′) catalytic process of 2,4-DCP oxidation.…”

Section: Resultsmentioning

confidence: 96%

CuO nanoleaf and β-cyclodextrin functionalized reduced graphene oxide: a highly selective and sensitive electrochemical sensor for the simultaneous detection of 2-chlorophenol and 2, 4-dichlorophenol

2023

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“…The efficacy of catalysis using cobalt tetrasulfophthalocyanine (CoTSPc) encapsulated in different mesoporous silicas (MCM-41, MCM-48 and SBA-15), zeolite (ZSM-5) and macroporous alumina (γ-Al 2 O 3 ) was studied [ 79 ]. The materials were used to catalyze the oxidative degradation of azo dye C. I.…”

Section: Porphyrins and Phthalocyanines Immobilized On Mesoporous Sil...mentioning

confidence: 99%

“…The crucial factor for catalytical activity was the pH at the time of material preparation; as CoTSPc is monomeric above pH 10, materials prepared in these conditions were active in azo dye degradation. CoTSPc@MCM-41 prepared at lower pH (pH < 4) showed decreased catalytic activity [ 79 ].…”

Section: Porphyrins and Phthalocyanines Immobilized On Mesoporous Sil...mentioning

confidence: 99%

Porphyrins and Phthalocyanines on Solid-State Mesoporous Matrices as Catalysts in Oxidation Reactions

Szymczak

Kryjewski

2022

Materials

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The review presents recent examples of heterogenic catalysts based on porphyrins and phthalocyanines loaded on mesoporous materials, such as MCM-41, SBA-15, MCM-48, SBA-16 or Al-MCM-41. Heterogenic approach to catalysis eases recovery, reuse and prevent macrocycle aggregation. In this application, mesoporous silica is a promising candidate for anchoring macrocycle and obtaining a new catalyst. Introduction of porphyrin or phthalocyanine into the mesoporous material may be performed through adsorption of the macrocycle, or by its in situ formation—by reaction of substrates introduced to the pores of the catalytic material. Catalytic reactions studied are oxidation processes, focused on alkane, alkene or arene as substrates. The products obtained are usually epoxides, alcohols, ketones, aldehydes or acids. The greatest interest lies in oxidation of cyclohexane and cyclohexene, as a source of adypic acid and derivatives. Some of the reactions may be viewed as biomimetic processes, resembling processes that occur in vivo and are catalyzed by cytochrome P450 enzyme family.

show abstract

Facile, green encapsulation of cobalt tetrasulfophthalocyanine monomers in mesoporous silicas for the degradative hydrogen peroxide oxidation of azo dyes

Cited by 33 publications

References 27 publications

Inorganic helping organic: recent advances in catalytic heterogeneous oxidations by immobilised tetrapyrrolic macrocycles in micro and mesoporous supports

Inorganic helping organic: recent advances in catalytic heterogeneous oxidations by immobilised tetrapyrrolic macrocycles in micro and mesoporous supports

CuO nanoleaf and β-cyclodextrin functionalized reduced graphene oxide: a highly selective and sensitive electrochemical sensor for the simultaneous detection of 2-chlorophenol and 2, 4-dichlorophenol

Porphyrins and Phthalocyanines on Solid-State Mesoporous Matrices as Catalysts in Oxidation Reactions

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