Enhanced degradation effect of nano-PAA–CuCl2 with controllable 3D structure as heterogeneous Fenton-like catalyst over a wide pH range

Cheng, Yih‐Lin; Wang, Kaige; Zhou, Yukun; Zhang, Chen; Zhao, Wei; Bai, Jintao

doi:10.1007/s10853-019-03420-z

Cited by 8 publications

(3 citation statements)

References 58 publications

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“…This heterostructured catalyst consisting of a medium-level Ni 0.96 S in the structure presented the best catalytic activity and durability for these catalytic reactions. It is reported that this heterostructure can produce (i) lattice defects, can provide more active sites, and can greatly improve electron transfer efficiency; (ii) a uniform heterogeneous interface, reducing the influence of the phase interface; and (iii) complete diffusion of the electrolyte to the electrode. , More importantly, the structure of such nanowire interwoven clusters is designed by controlling the non-sulfur content so that the MS-Ni 2 P/Ni 0.96 S/NF has a higher surface area. This study provided us with not only a low-cost, scalable, bifunctional electrocatalyst for hydrogen production but also a practically feasible approach for urea-rich wastewater treatment.…”

Section: Resultsmentioning

confidence: 99%

Low-Cost Ni₂P/Ni_0.96S Heterostructured Bifunctional Electrocatalyst toward Highly Efficient Overall Urea-Water Electrolysis

Feng

Liao

et al. 2019

ACS Appl. Mater. Interfaces

105

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Water splitting is a sustainable approach for production of hydrogen to fuel some clean energy technologies. This process, unfortunately, has been significantly impeded by the puzzles in either the efficient but economically unaffordable noblemetal-based catalysts or the low-cost but kinetically sluggish abundant-element-based catalysts. Particularly, the discovery of efficient bifunctional catalysts that can simultaneously trigger the reactions of both anode and cathode for overall water splitting still remains as a grand challenge. Herein, a novel low-cost bifunctional Ni 2 P/Ni 0.96 S heterostructured electrocatalyst, which is active for both the urea oxidation reaction at the anode and the hydrogen evolution reaction at the cathode, is innovated for high-efficiency overall splitting of urea-rich wastewater. A systematic configuration of a Ni foam (NF)-supported Ni 2 P/Ni 0.96 S catalyst electrode exhibits superior catalytic activity and stability. The Ni 2 P/Ni 0.96 S/NF||Ni 2 P/Ni 0.96 S/NF cell needs only 1.453 V to reach a current density of 100 mA/cm 2 in basic urea-containing water, while it is 1.693 V for a reference noble-based Pt/ C/NF||IrO 2 /NF electrolysis cell. This work therefore not only contributes to develop a low-cost, high-efficiency, bifunctional electrocatalyst but also provides a practically feasible approach for urea-rich wastewater treatment.

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Section: Resultsmentioning

confidence: 99%

Low-Cost Ni₂P/Ni_0.96S Heterostructured Bifunctional Electrocatalyst toward Highly Efficient Overall Urea-Water Electrolysis

Feng

Liao

et al. 2019

ACS Appl. Mater. Interfaces

105

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“…Not only the morphology (pore size, hole depth) of NpAA can be controlled, but also the physical and chemical properties are very stable. In our previous research [38,39], a kind of nanosheet composite films of metal chlorides grown on the top surface of NpAA [40,41] (such as (ZnCl 2 -ZnO)/NpAA, (CuCl 2 -CuO)/NpAA) have been utilized as solid-stated substrates for SERS technology, playing an important role in studying the properties of single molecules and demonstrating broad application prospects. In order to manufacture these composite films with uniform and stable structures in a large area and in large batches, and to understand factors affecting morphology and spatial structure.…”

Section: Introductionmentioning

confidence: 99%

Reflection Interference Spectroscopy Technology Monitoring the Synthesis of ZnCl2-ZnO Nanosheets on Nanoporous Anodic Alumina Substrate in Real Time

et al. 2023

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In situ, real-time, and non-destructive monitoring of the synthesis of nanomaterials is essence crucial for the development and prospective applications of nanoscience and nanotechnology. Reflection interference spectroscopy technology was used to systematically monitor the synthesis process of a transparent (ZnCl2-ZnO)/NpAA composite film which consists of ZnCl2-ZnO nanosheets formed by ZnCl2 precursor solution on the top surface of the substrate layer of nanoporous anodic alumina. Some significant results are found, e.g., the curve of effective optical thickness with time can be divided into three stages, corresponding to the synthesis process of ZnCl2-ZnO; and more, these films generated from ZnCl2 precursor solution with different concentrations, such as 0.05 M, 0.07 M, 0.085 M, or 0.1 M, can be directly distinguished according to the characteristics of the three stages.

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“…Catalytic capacity is the critical factor for dictating the efficiency of heterogeneous Fenton catalysis in the degradation of pollutants. Therefore, intensive attention has been paid to the synthesis of a wide variety of new catalysts to improve the catalytic capacity [ 7 , 8 , 9 , 10 , 11 , 12 , 13 ]. For example, Hu et al broke through the traditional Fenton theory to synthesize a new type of catalyst with a dual-reaction center [ 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

A Novel Chemiluminescent Method for Efficient Evaluation of Heterogeneous Fenton Catalysts Using Cigarette Tar

Wang

Jiang

et al. 2022

Toxics

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The evaluation of the catalytic capacity of catalysts is indispensable research, as catalytic capacity is a crucial factor to dictate the efficiency of heterogeneous Fenton catalysis. Herein, we obtained cigarette tar-methanol extracts (CTME) by applying methanol to cigarette tar and found that CTME could cause CL reactions with Fe2+/H2O2 systems in acidic, neutral, and alkaline media. The CL spectrum experiment indicated that the emission wavelengths of the CTME CL reaction with Fe2+/H2O2 systems were about 490 nm, 535 nm, and 590 nm. Quenching experiments confirmed that hydroxyl radicals (•OH) were responsible for the CL reaction for CTME. Then the CL property of CTME was applied in-situ to rapidly determine the amounts of •OH in tetrachloro-1,4-benzoquinone (TCBQ)/H2O2 system in acidic, neutral and alkaline media, and the CL intensities correlated the best (R2 = 0.99) with TCBQ concentrations. To demonstrate the utility of the CTME CL method, the catalytic capacity of different types and concentrations of catalysts in heterogeneous Fenton catalysis were examined. It was found that the order of CL intensities was consistent with the order of degradation efficiencies of Rhodamine B, indicating that this method could distinguish the catalytic capacity of catalysts. The CTME CL method could provide a convenient tool for the efficient evaluation of the catalytic capacity of catalysts in heterogeneous Fenton catalysis.

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Enhanced degradation effect of nano-PAA–CuCl2 with controllable 3D structure as heterogeneous Fenton-like catalyst over a wide pH range

Cited by 8 publications

References 58 publications

Low-Cost Ni₂P/Ni_0.96S Heterostructured Bifunctional Electrocatalyst toward Highly Efficient Overall Urea-Water Electrolysis

Low-Cost Ni₂P/Ni_0.96S Heterostructured Bifunctional Electrocatalyst toward Highly Efficient Overall Urea-Water Electrolysis

Reflection Interference Spectroscopy Technology Monitoring the Synthesis of ZnCl2-ZnO Nanosheets on Nanoporous Anodic Alumina Substrate in Real Time

A Novel Chemiluminescent Method for Efficient Evaluation of Heterogeneous Fenton Catalysts Using Cigarette Tar

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Enhanced degradation effect of nano-PAA–CuCl2 with controllable 3D structure as heterogeneous Fenton-like catalyst over a wide pH range

Cited by 8 publications

References 58 publications

Low-Cost Ni2P/Ni0.96S Heterostructured Bifunctional Electrocatalyst toward Highly Efficient Overall Urea-Water Electrolysis

Low-Cost Ni2P/Ni0.96S Heterostructured Bifunctional Electrocatalyst toward Highly Efficient Overall Urea-Water Electrolysis

Reflection Interference Spectroscopy Technology Monitoring the Synthesis of ZnCl2-ZnO Nanosheets on Nanoporous Anodic Alumina Substrate in Real Time

A Novel Chemiluminescent Method for Efficient Evaluation of Heterogeneous Fenton Catalysts Using Cigarette Tar

Contact Info

Product

Resources

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Low-Cost Ni₂P/Ni_0.96S Heterostructured Bifunctional Electrocatalyst toward Highly Efficient Overall Urea-Water Electrolysis

Low-Cost Ni₂P/Ni_0.96S Heterostructured Bifunctional Electrocatalyst toward Highly Efficient Overall Urea-Water Electrolysis