AgI/UiO-66-NH2@carbonized wood fabricated as self-floating heterojunction for enhancing visible light-driving photocatalytic degradation of Rhodamine B

IF 5.6 1区农林科学 Q1 AGRICULTURAL ENGINEERING

Industrial Crops and Products Pub Date : 2024-01-30 DOI:10.1016/j.indcrop.2024.118125

Zhanming Liang , Lingyun Hao , Yuanyuan Yu , Hewei Hou , Guangfu Qian , Douyong Min

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Abstract

The conveniently recoverable photocatalyst with self-floating and photothermal performance has attracted considerable attention. Herein, AgI/UiO-66-NH₂ was anchored on carbonized wood (CW) via a facile solvothermal and ion exchange deposition process. The catalytic properties and performance of the fabricated heterojunction were systematically characterized. The high-resolution transmission electron microscopy confirmed AgI/UiO-66-NH₂ was anchored on CW surface. The X-ray photoelectron spectroscopy revealed the shift of Zr 3d and Ag 3d, proving the heterojunction formation of samples. The heterojunction exhibited the strong UV adsorption peaks between 400 and 800 nm. The infrared photothermal analysis showed the heterojunction (41.2 °C) can adsorb more heat than AgI/UiO-66-NH₂ (31.2 °C) within 15 min visible light irradiation. As the floating carrier, CW enhanced the adsorption and utilization of sunlight. More than 96% of Rh B were degraded within 150 min with irradiation when the heterojunction was applied, and above 85% degradation rate were preserved after 6 cycling recycles, confirming its outstanding stability. Conclusively, this study paved a new pathway for fabricating the potential of easy recyclability and high stability of AgI/UiO-66-NH₂ @CW from biomass for wastewater treatment.

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以自浮异质结形式制造的 AgI/UiO-66-NH2@carbonized 木材可增强可见光驱动的罗丹明 B 光催化降解能力

方便回收、具有自浮和光热性能的光催化剂备受关注。本文通过简便的溶热和离子交换沉积工艺，将 AgI/UiO-66-NH2 固定在碳化木（CW）上。对所制备异质结的催化特性和性能进行了系统表征。高分辨率透射电子显微镜证实了 AgI/UiO-66-NH2 被锚定在碳化木表面。X 射线光电子能谱显示了 Zr 3d 和 Ag 3d 的移动，证明了样品异质结的形成。异质结在 400 纳米和 800 纳米之间表现出强烈的紫外吸附峰。红外光热分析表明，在可见光照射 15 分钟内，异质结（41.2 °C）比 AgI/UiO-66-NH2 （31.2 °C）能吸附更多的热量。作为漂浮载体，CW 增强了对太阳光的吸附和利用。应用异质结时，在 150 分钟的照射时间内，96% 以上的 Rh B 被降解，经过 6 次循环后，降解率仍保持在 85% 以上，这证实了其出色的稳定性。总之，这项研究为从生物质中制备具有易循环性和高稳定性的 AgI/UiO-66-NH2 @CW 用于废水处理开辟了一条新途径。

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来源期刊

Industrial Crops and Products 农林科学-农业工程

CiteScore

9.50

自引率

8.50%

发文量

1518

审稿时长

43 days

期刊介绍： Industrial Crops and Products is an International Journal publishing academic and industrial research on industrial (defined as non-food/non-feed) crops and products. Papers concern both crop-oriented and bio-based materials from crops-oriented research, and should be of interest to an international audience, hypothesis driven, and where comparisons are made statistics performed.