Catalytic wet peroxide oxidation of phenol solution over Fe–Mn binary oxides diatomite composite

Son, Bui Hai Dang; Mai, Vo Quang; Dự, Đặng Xuân; Phong, Nguyễn Hải; Cuong, Nguyen Duc; Khiếu, Đinh Quang

doi:10.1007/s10934-016-0296-7

Cited by 21 publications

(10 citation statements)

References 32 publications

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“…6 Therefore, researchers turned to heterogeneous systems of transition metal catalysts, such as Cu, 7 Co, 8 Mn, 9 etc., and gradually developed catalytic wet peroxide technology (CWPO) on the basis of Fenton method by replacing Fe 2+ with solid catalysts. [10][11][12] With the in-depth study of CWPO technology, all kinds of coupling technologies continue to emerge, expanding the application scope of CWPO technology. Li et al 13 used Cu-Ni bimetallic oxide as catalyst to degrade quinoline in coal chemical wastewater by MW (microwave)-CWPO, and the degradation rate reached 95%.…”

Section: Introductionmentioning

confidence: 99%

Silver/silver halide supported on mesoporous ceria particles and photo-CWPO degradation under visible light for organic compounds in acrylonitrile wastewater

Guo

Tan

et al. 2021

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Silver/silver halide supported on mesoporous ceria particles and photo-CWPO degradation under visible light for organic compounds in acrylonitrile wastewater

Guo

Tan

et al. 2021

RSC Adv.

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“…1 E–H). Through the analysis of XPS spectrums, it was confirmed that copper existed in the form of Cu(Ⅱ) [ 34 ]; most manganese existed in the form of Mn(Ⅲ), and a small amount existed in the form of Mn(Ⅳ) [ 33 , 37 , 38 ]. So far, we believed that borosilicate nanoparticles (BSNs) had been successfully synthesized in this work.…”

Section: Resultsmentioning

confidence: 99%

Osteogenic and anti-tumor Cu and Mn-doped borosilicate nanoparticles for syncretic bone repair and chemodynamic therapy in bone tumor treatment

Pang

Zhao

Chen

et al. 2022

Bioactive Materials

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Critical bone defects caused by extensive excision of malignant bone tumor and the probability of tumor recurrence due to residual tumor cells make malignant bone tumor treatment a major clinical challenge. The present therapeutic strategy concentrates on implanting bone substitutes for defect filling but suffers from failures in both enhancing bone regeneration and inhibiting the growth of tumor cells. Herein, Cu and Mn-doped borosilicate nanoparticles (BSNs) were developed for syncretic bone repairing and anti-tumor treatment, which can enhance bone regeneration through the osteogenic effects of Cu 2+ and Mn 3+ ions and meanwhile induce tumor cells apoptosis through the hydroxyl radicals produced by the Fenton-like reactions of Cu 2+ and Mn 3+ ions. In vitro study showed that both osteogenic differentiation of BMSCs and angiogenesis of endothelial cells were promoted by BSNs, and consistently the critical bone defects of rats were efficiently repaired by BSNs through in vivo evaluation. Meanwhile, BSNs could generate hydroxyl radicals through Fenton-like reactions in the simulated tumor microenvironment, promote the generation of intracellular reactive oxygen species, and eventually induce tumor cell apoptosis. Besides, subcutaneous tumors of mice were effectively inhibited by BSNs without causing toxic side effects to normal tissues and organs. Altogether, Cu and Mn-doped BSNs developed in this work performed dual functions of enhancing osteogenesis and angiogenesis for bone regeneration, and inhibiting tumor growth for chemodynamic therapy, thus holding a great potential for syncretic bone repairing and anti-tumor therapy.

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“…According to a previous study, Mn 2+ can be oxidized by H 2 O 2 to MnO 2 , which then acts as a nanoagent to trigger oxygenation under acidic conditions. The catalytic decomposition of H 2 O 2 to generate oxygen can be explained by the following reaction equations: , …”

Section: Resultsmentioning

confidence: 99%

“…In the Mn 2p XPS spectra, two peaks 641.8 and 653.4 eV derived from Mn 2p 3/2 and Mn 2p 1/2 were recorded, providing evidence for the existence of Mn 2+ . After the confirmation of the synthesis and composition of nanocomposites, the UV−vis absorption characteristics, which is an extremely significant parameter for characterizing PTT agents, 61,62 was investigated. The absorbance of gold cube-in-cubes, which contained two characteristic absorbance peaks, was much higher than that of gold nanocubes in this work (Figure S4).…”

Section: Resultsmentioning

confidence: 99%

Gold Cube-in-Cube Based Oxygen Nanogenerator: A Theranostic Nanoplatform for Modulating Tumor Microenvironment for Precise Chemo-Phototherapy and Multimodal Imaging

et al. 2019

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Engineering a versatile oncotherapy nanoplatform integrating both diagnostic and therapeutic functions has always been an intractable challenge in targeted cancer treatment. Herein, to actualize the theme of precise medicine, a nanoplatform is developed by anchoring Mn-Cdots to doxorubicin (DOX)-loaded mesoporous silica-coated gold cube-in-cubes core/shell nanocomposites and further conjugating them to a Arg-Gly-Asp (RGD) peptide (denoted as RGD-CCmMC/DOX) to achieve an active-targeting effect. Under 635 nm irradiation, the nanoplatform acts as oxygen nanogenerator that produces O2 in situ and amplifies the content of singlet oxygen (1O2) in the hypoxic tumor microenvironment (TME), which has been demonstrated to attenuate tumor hypoxia and synchronously enhance photodynamic efficacy. Moreover, the gold cube-in-cube core in this work has been proven as a photothermal agent for hyperthermia, which exhibits a favorable photothermal effect with a 65.6% calculated photothermal conversion efficiency under 808 nm irradiation. In addition, the nanoplatform achieves heat- and pH-sensitive drug release with precise control to specific-tumor sites, executing combined chemo-phototherapy functions. Besides, it functions as a multimodal bioimaging agent of photothermal, fluorescence, and magnetic resonance imaging for the accurate diagnosis and guidance of therapy. As validated by in vivo and in vitro assays, the TME-responsive nanoplatform is highly biocompatible and effectively obliterates 4T1 tumor xenografts on nude mice after triple-synergetic treatment. This work presents a rational design of versatile nanoplatforms, which modulate the TME to enable high therapeutic performance and multiplexed imaging, which provides an innovative paradigm for targeted tumor therapy.

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Catalytic wet peroxide oxidation of phenol solution over Fe–Mn binary oxides diatomite composite

Cited by 21 publications

References 32 publications

Silver/silver halide supported on mesoporous ceria particles and photo-CWPO degradation under visible light for organic compounds in acrylonitrile wastewater

Silver/silver halide supported on mesoporous ceria particles and photo-CWPO degradation under visible light for organic compounds in acrylonitrile wastewater

Osteogenic and anti-tumor Cu and Mn-doped borosilicate nanoparticles for syncretic bone repair and chemodynamic therapy in bone tumor treatment

Gold Cube-in-Cube Based Oxygen Nanogenerator: A Theranostic Nanoplatform for Modulating Tumor Microenvironment for Precise Chemo-Phototherapy and Multimodal Imaging

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