A S-type 2D/2D heterojunction via intercalating ultrathin g-C3N4 into NH4V4O10 nanosheets and the boosted removal of ciprofloxacin

IF 20.2 1区化学 Q1 CHEMISTRY, PHYSICAL

Applied Catalysis B: Environmental Pub Date : 2023-12-20 DOI:10.1016/j.apcatb.2023.123642

Yuxuan Ma , Dan He , Quansheng Liu , Shukun Le , Xiaojing Wang

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引用次数: 0

Abstract

Exploring cheap, eco-friendliness, and highly efficiency photocatalysts for improving the degradation performance of ciprofloxacin (CIP) is a challenge in the environmental remediation field. Herein, 2D/2D ultrathin g-C₃N₄/NH₄V₄O₁₀ (CNNS/NH₄V₄O₁₀) heterojunction is successfully prepared by intercalating g-C₃N₄ nanosheets into the ultrathin NH₄V₄O₁₀ nanobelts. For the optimized 50-CNNS/NH₄V₄O₁₀, the removal rate is 92% for 10 mg·L⁻¹ CIP under simulated solar light, far better than the separated components CNNS and NH₄V₄O₁₀. Moreover, the wide degraded concentration of CIP ranges from 5 to 40 mg·L⁻¹ devotes a prospect of practical application. The mechanism investigation confirms the intercalating action can break the interlaminar bonding linkage of NH₄, which increases the surface NH₄⁺ content and promotes the steered adsorption capacity toward ciprofloxacin through binding to F^- in CIP via H-bonding. This work provides a novel design idea for constructing 2D/2D intercalated nanocomposite for the application in the removal of the deleterious fluoric-containing organic pollutants in water environment.

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通过在 NH4V4O10 纳米片中插层超薄 g-C3N4 实现 S 型二维/二维异质结并提高环丙沙星的去除率

探索廉价、环保、高效的光催化剂以提高环丙沙星（CIP）的降解性能是环境修复领域的一项挑战。本文通过将 g-C3N4 纳米片插层到超薄 NH4V4O10 纳米颗粒中，成功制备了 2D/2D 超薄 g-C3N4/NH4V4O10 （CNNS/NH4V4O10）异质结。优化后的 50-CNNS/NH4V4O10 在模拟太阳光下对 10 mg-L-1 CIP 的去除率为 92%，远远优于分离后的 CNNS 和 NH4V4O10。此外，CIP 的降解浓度范围从 5 到 40 mg-L-1 不等，这为实际应用提供了前景。机理研究证实，插层作用可打破 NH4 的层间键联，增加表面 NH4+ 含量，并通过 H 键与 CIP 中的 F- 结合，提高对环丙沙星的定向吸附能力。这项工作为构建二维/二维插层纳米复合材料提供了一种新的设计思路，可用于去除水环境中有害的含氟有机污染物。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Catalysis B: Environmental 环境科学-工程：化工

CiteScore

38.60

自引率

6.30%

发文量

1117

审稿时长

24 days

期刊介绍： Applied Catalysis B: Environment and Energy (formerly Applied Catalysis B: Environmental) is a journal that focuses on the transition towards cleaner and more sustainable energy sources. The journal's publications cover a wide range of topics, including: 1.Catalytic elimination of environmental pollutants such as nitrogen oxides, carbon monoxide, sulfur compounds, chlorinated and other organic compounds, and soot emitted from stationary or mobile sources. 2.Basic understanding of catalysts used in environmental pollution abatement, particularly in industrial processes. 3.All aspects of preparation, characterization, activation, deactivation, and regeneration of novel and commercially applicable environmental catalysts. 4.New catalytic routes and processes for the production of clean energy, such as hydrogen generation via catalytic fuel processing, and new catalysts and electrocatalysts for fuel cells. 5.Catalytic reactions that convert wastes into useful products. 6.Clean manufacturing techniques that replace toxic chemicals with environmentally friendly catalysts. 7.Scientific aspects of photocatalytic processes and a basic understanding of photocatalysts as applied to environmental problems. 8.New catalytic combustion technologies and catalysts. 9.New catalytic non-enzymatic transformations of biomass components. The journal is abstracted and indexed in API Abstracts, Research Alert, Chemical Abstracts, Web of Science, Theoretical Chemical Engineering Abstracts, Engineering, Technology & Applied Sciences, and others.