Amorphous NiP as cocatalyst for photocatalytic water splitting

Xie, Juan; Yang, Chen; Duan, Ming; Tang, Junlei; Wang, Yingying; Wang, Hu; Courtois, Jérémie

doi:10.1016/j.ceramint.2017.12.179

Cited by 55 publications

(19 citation statements)

References 36 publications

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“…2 , the XRD diffraction pattern of Ni 2 P showed no obvious diffraction peaks, which indicates that the Ni 2 P has an amorphous structure. 30 The morphology of Ni 2 P is revealed using SEM. As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Visible-light-driven H₂production and decomposition of 4-nitrophenol over nickel phosphides

et al. 2018

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Section: Resultsmentioning

confidence: 99%

Visible-light-driven H₂production and decomposition of 4-nitrophenol over nickel phosphides

et al. 2018

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“…Therefore, the exploitation of environment-friendly renewable energy is very crucial to resolve this global energy predicament (Alarawi et al, 2019;Sun et al, 2019;Wang et al, 2019). Hydrogen, as a clean and pollution-free energy, is considered to be the most promising alternative energy resource (Midilli and Dincer, 2008;McCrory et al, 2015;Du et al, 2018;Xie et al, 2018). To date, electrocatalytic and photocatalytic water splitting are two main methods for hydrogen production Roger et al, 2017;Kim et al, 2018;Kadi and Mohamed, 2019).…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Monodispersed α-Ni(OH)2 Microspheres Assembled by Ultrathin Nanosheets and Its Performance for Oxygen Evolution Reduction

Pan

Zhang

et al. 2019

Front. Mater.

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Electrocatalytic water splitting is an efficient route to generate renewable energy sources, in which the noble metal materials are usually used as electrocatalysts. But the high price and scarcity of these catalysts impede their large-scale applications. Ni-based materials are considered to be the most suitable catalytic materials to substitute these noble metal materials. In this paper, the monodispersed α-Ni(OH) 2 microspheres assembled by ultrathin nanosheets were synthesized by a facile solvothermal method. This method was surfactant-free and no precipitator was used. The as-obtained products were well-characterized by X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), transmission electron microscope (TEM), thermal gravimetric (TG) analysis, and X-ray photoelectron spectroscopy (XPS). The results of N 2 adsorption/desorption isotherm indicate that the BET surface area of the products was 169.94 m 2 g −1 , and the pore-size distribution centered at 3.5 nm. Then, the electrochemical properties were evaluated by linear sweep voltammetry (LSV) in 1 M KOH. At a current density of 10 mA cm 2 , the overpotential for the α-Ni(OH) 2 -MS is 320 mV, and the Tafel slope is 98.7 mV dec −1 , indicating its excellent reaction kinetics for an efficient catalyst toward oxygen evolution reaction (OER).

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“…Since there is very limited of mobility of the ions at that temperature, it could take some time to improve crystallinity to a great extent. However, previous study stated that the amorphous structure exhibited better photocatalytic performance than crystalline structure [17]. It was revealed that amorphous products displayed high surface area when comparing to other crystalline products that could lead to high adsorption of pollutants on surface of photocatalyst [18].…”

Section: Photocatalytic Degradation Of Humic Acidmentioning

confidence: 94%

Preparation and Characterization of Lafeo3 Using Dual-Complexing Agents for Photodegradation of Humic Acid

Yahya¹,

Aziz²,

M.A.O³

et al. 2018

Environ. ecosyst. sci.

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Humic Acid (HA) is considered as one of the major components that represents a major fraction of dissolved in natural water. Complex mixture of organic compounds on HA lead to the problematic issue for municipal wastewater treatment plants such as undesirable taste, colour to drinking water and fouling in pipe line. The reaction of HA with chlorine during disinfection processes would produce carcinogenic by-products like trihalomethanes. In this study, for the first time, LaFeO3 photocatalyst was successfully synthesized via gel-combustion method using combined glucose/citric acid as chelating agents and was further calcined at 400°C. The photocatalytic activity of samples was investigated by degradation of Humic Acid (HA) in water under visible light irradiation. Results proved that the photocatalytic degradation of HA is dependent on the catalyst dosage, initial concentration of HA, and oxygen availability in the aeration. The photocatalytic degradation also was enhanced by high surface area of synthesized LaFeO3 obtained by amorphous structure. Overall, the percentage removal of HA by varying the catalyst dosage are in the order of 88%, 90%, 98% and 97% for 0.6 g/L, 0.8 g/L, 1.0 g/L, and 1.2 g/L respectively for an irradiation period of 120 minutes. Next, the removal of HA by manipulating its initial concentration are 98%, 90%, 85% and 86% with respect to 10 g/L, 20 g/L, 30 g/L and 40 g/L taken for 120 minutes. Overall, the optimal operational parameters for the removal of HA of catalyst dosage is 1.0 g/L performing at 98%, for initial concentration of HA which was removed efficiently at 97% is 10 g/L and via aeration in this study was about 93%, after 120 min of irradiation times.

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Amorphous NiP as cocatalyst for photocatalytic water splitting

Cited by 55 publications

References 36 publications

Visible-light-driven H₂production and decomposition of 4-nitrophenol over nickel phosphides

Visible-light-driven H₂production and decomposition of 4-nitrophenol over nickel phosphides

Facile Synthesis of Monodispersed α-Ni(OH)2 Microspheres Assembled by Ultrathin Nanosheets and Its Performance for Oxygen Evolution Reduction

Preparation and Characterization of Lafeo3 Using Dual-Complexing Agents for Photodegradation of Humic Acid

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Amorphous NiP as cocatalyst for photocatalytic water splitting

Cited by 55 publications

References 36 publications

Visible-light-driven H2production and decomposition of 4-nitrophenol over nickel phosphides

Visible-light-driven H2production and decomposition of 4-nitrophenol over nickel phosphides

Facile Synthesis of Monodispersed α-Ni(OH)2 Microspheres Assembled by Ultrathin Nanosheets and Its Performance for Oxygen Evolution Reduction

Preparation and Characterization of Lafeo3 Using Dual-Complexing Agents for Photodegradation of Humic Acid

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Visible-light-driven H₂production and decomposition of 4-nitrophenol over nickel phosphides

Visible-light-driven H₂production and decomposition of 4-nitrophenol over nickel phosphides