N–ZnO/g-C3N4 nanoflowers for enhanced photocatalytic and electrocatalytic performances

IF 2.9 3区物理与天体物理 Q3 NANOSCIENCE & NANOTECHNOLOGY Physica E-low-dimensional Systems & Nanostructures Pub Date : 2024-07-15 DOI:10.1016/j.physe.2024.116053

Iqra Fareed , Masood ul Hassan Farooq , Muhammad Danish Khan , Muhammad Faran Yunas , Muhammad Safdar , Muhammad Tanveer , Faheem K. Butt

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Abstract

In this study, CNNZO (N–ZnO/g-C₃N₄) nanocomposites were synthesized via a facile hydrothermal method and characterized using XRD, FTIR and FESEM. The resulting N–ZnO nano-needles and plate-like structures, anchored onto g-C₃N₄ agglomerates, formed distinctive nano-flower topography. CNNZO demonstrated superior photocatalytic activity compared to CN and N–ZnO, achieving ∼98 % degradation of Methylene Blue, 85.53 % of Methyl Green and 87.29 % of Methyl Orange under visible light irradiation within 90 min. This enhanced performance is attributed to the unique morphology of CNNZO, which promotes efficient charge carrier transfer and inhibits recombination. Additionally, CNNZO exhibited improved electrocatalytic activity with smaller HER and OER potentials. This study underscores the potential of CNNZO nanocomposites as effective catalysts for the degradation of organic contaminants and hydrogen and oxygen evolution for energy production.

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用于增强光催化和电催化性能的 N-ZnO/g-C3N4 纳米气流

本研究采用简便的水热法合成了 CNNZO（N-ZnO/g-C3N4）纳米复合材料，并使用 XRD、FTIR 和 FESEM 对其进行了表征。在 g-C3N4 团聚体上锚定的 N-ZnO 纳米针状和板状结构形成了独特的纳米花形貌。与 CN 和 N-ZnO 相比，CNNZO 表现出更高的光催化活性，在可见光照射下，90 分钟内可实现 98% 的亚甲基蓝降解率、85.53% 的甲基绿降解率和 87.29% 的甲基橙降解率。性能的提高归功于 CNNZO 独特的形貌，这种形貌促进了电荷载流子的有效转移并抑制了重组。此外，CNNZO 还表现出更高的电催化活性和更小的 HER 和 OER 电位。这项研究强调了 CNNZO 纳米复合材料作为有效催化剂的潜力，可用于有机污染物的降解以及氢和氧的进化，从而实现能源生产。

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来源期刊

Physica E-low-dimensional Systems & Nanostructures 物理-纳米科技

CiteScore

7.30

自引率

6.10%

发文量

356

审稿时长

65 days

期刊介绍： Physica E: Low-dimensional systems and nanostructures contains papers and invited review articles on the fundamental and applied aspects of physics in low-dimensional electron systems, in semiconductor heterostructures, oxide interfaces, quantum wells and superlattices, quantum wires and dots, novel quantum states of matter such as topological insulators, and Weyl semimetals. Both theoretical and experimental contributions are invited. Topics suitable for publication in this journal include spin related phenomena, optical and transport properties, many-body effects, integer and fractional quantum Hall effects, quantum spin Hall effect, single electron effects and devices, Majorana fermions, and other novel phenomena. Keywords: • topological insulators/superconductors, majorana fermions, Wyel semimetals; • quantum and neuromorphic computing/quantum information physics and devices based on low dimensional systems; • layered superconductivity, low dimensional systems with superconducting proximity effect; • 2D materials such as transition metal dichalcogenides; • oxide heterostructures including ZnO, SrTiO3 etc; • carbon nanostructures (graphene, carbon nanotubes, diamond NV center, etc.) • quantum wells and superlattices; • quantum Hall effect, quantum spin Hall effect, quantum anomalous Hall effect; • optical- and phonons-related phenomena; • magnetic-semiconductor structures; • charge/spin-, magnon-, skyrmion-, Cooper pair- and majorana fermion- transport and tunneling; • ultra-fast nonlinear optical phenomena; • novel devices and applications (such as high performance sensor, solar cell, etc); • novel growth and fabrication techniques for nanostructures

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