Photocatalytic degradation of polyacrylamide by rGO@Fe3O4/Cu2O@ZnO magnetic recyclable composites

Zhu, Benjie; Jiang, Guofei; Lv, Yan; Liu, Fang; Sun, Juan

doi:10.1016/j.mssp.2021.105841

Cited by 16 publications

(6 citation statements)

References 51 publications

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“…Furthermore the key to photocatalytic degradation technology lies in the preparation of efficient photocatalysts and the optimization of photocatalytic operation conditions. 13,14…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore the key to photocatalytic degradation technology lies in the preparation of efficient photocatalysts and the optimization of photocatalytic operation conditions. 13,14 In recent years, the unique pore structure of ion exchange resins has been increasingly utilized as templates to prepare nano CeO 2 , Zn-AlLDHs, and other materials. [15][16][17] At the same time, the researchers have also used them as carriers to load metals or oxides inside or on the surface of particles to prepare composites with catalytic and antibacterial properties.…”

Section: Introductionmentioning

confidence: 99%

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Preparation of CuO loaded cation exchange resin composites and its degradation of polyacrylamide aqueous solution

Wang,

Lai,

Yang

et al. 2023

Polymers and Polymer Composites

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Macroporous cation exchange resins (CER) were used as carriers, and CuO loaded cation exchange resin composites was successfully prepared under thermostatic oscillation and hydrothermal conditions. The results showed that the as-prepared composites exhibited obvious shell-core structure. The different amounts of NaOH affected the micro morphology of CuO on the surface and in the internal pores of the resin, and also affected the percentage content of Cu element. XRD characterization clearly revealed that the products were monoclinic crystal system CuO species with a grain size of about 16 nm. The highest degradation rate of polyacrylamide (PAM) by CuO@IER-1g reached 81.94%, after 6 cycles CuO@CER-1g has still good photocatalytic activity, and the decrease in degradation rate was the combined effect from the adsorption of ion exchange resins and the electron-hole pairs formed by CuO and a series of free radical transfer reactions under ultraviolet light. This study has important theoretical basis and practical significance for enriching ion exchange theory, developing the photocatalytic industry, and purifying the environment.

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“…Furthermore the key to photocatalytic degradation technology lies in the preparation of efficient photocatalysts and the optimization of photocatalytic operation conditions. 13,14…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation of CuO loaded cation exchange resin composites and its degradation of polyacrylamide aqueous solution

Wang,

Lai,

Yang

et al. 2023

Polymers and Polymer Composites

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“…However, there are fewer reports on this topic. For example, Zhu et al [16] synthesized Cu 2 O@ZnO using the immersion-reduction air oxidation method and prepared rGO@Fe 3 O 4 /Cu 2 O@ZnO magnetic recyclable composite material via a hydrothermal method with GO@Fe 3 O 4 prepared using a chemical co-precipitation method. The composite of Cu 2 O and ZnO can improve the range of light response and solar energy utilization and form a heterogeneous (p-n type) structure with ZnO, further promoting the separation of light-induced charge carriers, thereby improving the catalytic performance.…”

Section: Introductionmentioning

confidence: 99%

Construction of Spinel/Perovskite Heterojunction for Boosting Photocatalytic Performance for Polyacrylamide

Zhu,

Luo,

Yang

et al. 2023

Catalysts

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The use of photocatalytic technology to degrade polyacrylamide in crude oil extraction wastewater is a promising approach, but there have been few reports so far. In this study, ZnFe2O4/Ba0.7Sr0.3TiO3 heterogeneous composite materials of a spinel/perovskite type with different proportions were synthesized. The composite materials with 31% ZnFe2O4 content exhibited a maximum polyacrylamide degradation efficiency of 46.54%, which demonstrated the unique role of the spinel/perovskite heterogeneous structure. When Ag nanoparticles were grown in situ on the surface of ZnFe2O4/Ba0.7Sr0.3TiO3, the photocatalytic degradation efficiency reached 81.28%. The main reason was that the introduction of Ag nanoparticles not only increased the active sites and enhanced light absorption capacity but also accelerated the separation of photo-generated charges. This work provides new ideas for the construction of spinel/perovskite heterogeneous composite materials and has reference significance for the application of photocatalytic degradation in the treatment of wastewater-containing polymers.

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“…[28][29][30] Thus, Cu 2 O has been digging deeper into energy conversion, [31,32] sensor technology, [33][34][35] and catalysis. [36][37][38] There are various methods for Cu 2 O preparation, including electrodeposition, [39][40][41] solvothermal, [20,42] precipitation, [43,44] water-bath, [45,46] hydrothermal, [47][48][49][50] and magnetron sputtering. [51,52] Moreover, Cu 2 O has controllable morphology, such as cube, [53,54] octahedron, [55,56] nanowire, [57,58] and hollow ball.…”

Section: Introductionmentioning

confidence: 99%

Research Progress on Cu₂O‐based Type‐II Heterojunction Photocatalysts for Photocatalytic Removal of Antibiotics

Wang

Yang

et al. 2022

ChemistrySelect

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Photocatalytic degradation technology, using solar energy as the driving force, is considered the most possible alternative to remediate environmental pollution. And it is essential to find a stable and efficient photocatalyst. As promising semiconductor-based photocatalysts, Cu 2 O has acquired massive attention owning to its high conduction band energy, superior visiblelight response-ability, low cost, eco-friendly, and abundance. However, the application of origin Cu 2 O faces severe problems due to its photocorrosion and low photoinduced carrier separation. Consequently, it is necessary to improve its photo-stability and photocatalytic activity by carrying out numerous modification strategies, such as heterostructure construction. Herein, we first summarize the classification and operation principles of Cu 2 O-based type-II heterojunction. Then, the application of the Cu 2 O-based type-II heterojunction photocatalysts for the removal of tetracyclines, quinolones, and sulfonamides have been discussed. Finally, the pressing issues and perspectives in Cu 2 O-based type-II heterojunction photocatalysts application for degrading antibiotics have prospected.

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Photocatalytic degradation of polyacrylamide by rGO@Fe3O4/Cu2O@ZnO magnetic recyclable composites

Cited by 16 publications

References 51 publications

Preparation of CuO loaded cation exchange resin composites and its degradation of polyacrylamide aqueous solution

Preparation of CuO loaded cation exchange resin composites and its degradation of polyacrylamide aqueous solution

Construction of Spinel/Perovskite Heterojunction for Boosting Photocatalytic Performance for Polyacrylamide

Research Progress on Cu₂O‐based Type‐II Heterojunction Photocatalysts for Photocatalytic Removal of Antibiotics

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Photocatalytic degradation of polyacrylamide by rGO@Fe3O4/Cu2O@ZnO magnetic recyclable composites

Cited by 16 publications

References 51 publications

Preparation of CuO loaded cation exchange resin composites and its degradation of polyacrylamide aqueous solution

Preparation of CuO loaded cation exchange resin composites and its degradation of polyacrylamide aqueous solution

Construction of Spinel/Perovskite Heterojunction for Boosting Photocatalytic Performance for Polyacrylamide

Research Progress on Cu2O‐based Type‐II Heterojunction Photocatalysts for Photocatalytic Removal of Antibiotics

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Product

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Research Progress on Cu₂O‐based Type‐II Heterojunction Photocatalysts for Photocatalytic Removal of Antibiotics