Enhanced photocatalytic degradation of diazinon using Ni:ZnO/Fe3O4 nanocomposite under solar light

IF 5.5 3区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of the Taiwan Institute of Chemical Engineers Pub Date : 2024-05-14 DOI:10.1016/j.jtice.2024.105528

Hamzeh Salehzadeh , Kitirote Wantala , Behzad Shahmoradi , Afshin Maleki , Totsaporn Suwannaruang , Harikaranahalli Puttaiah Shivaraju , Ebrahim Mohammadi , Guogang Ren , David F. Jenkins , Hee-Jeong Choi , Mahdi Safari

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Abstract

Background

The increasing photocatalytic activity of Ni:ZnO/Fe₃O₄ nanocomposite in the diazinon degradation under solar light compared to bare ZnO and Ni:ZnO nanoparticles was examined.

Methods

The synthesized nanoparticles and nanocomposite were characterized by SEM, MAP-EDX, XRD, FTIR, DLS, Zeta Potential and UV–Vis Spectrophotometer methods. The photocatalytic degradation of diazinon was investigated under sunlight illumination while continuously mixing on a stirrer for 180 min.

Significant findings

The highest degradation efficiency was achieved for 1.5 wt% Ni:ZnO nanoparticles and 1.0 wt% Ni:ZnO/Fe₃O₄ nanocomposite at a diazinon concentration of 10 mg/L for the nanoparticle dose equal to 2 g/L was 95 % and 93 %, respectively. The recycling photocatalysts were investigated. Application of H₂O₂, potassium peroxymonosulfate (PMS) and S₂O₈²⁻ as chemical oxidants increased the photocatalytic activity of the nanocomposite. The use of 1.0 wt% Ni:ZnO/Fe₃O₄ nanocomposite along with 0.01 M H₂O₂ displayed the increasing photocatalytic performance. The simultaneous photocatalytic degradation efficiency of combined H₂O₂ and 1.0 wt% NZF nanocomposite for 100 mg/l of diazinon increased from 44 to 82 %. The photocatalytic mechanism of diazinon was proposed in three pathways.

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在太阳光下使用 Ni:ZnO/Fe3O4 纳米复合材料增强对二嗪农的光催化降解

背景考察了Ni:ZnO/Fe3O4纳米复合材料与裸ZnO和Ni:ZnO纳米颗粒相比在太阳光下降解二嗪农中光催化活性的提高。在二嗪农浓度为 10 mg/L 时，当纳米颗粒剂量等于 2 g/L 时，1.5 wt% Ni:ZnO 纳米颗粒和 1.0 wt% Ni:ZnO/Fe3O4 纳米复合材料对二嗪农的光催化降解效率分别为 95% 和 93%。对回收光催化剂进行了研究。使用 H2O2、过氧化单硫酸钾（PMS）和 S2O82- 作为化学氧化剂提高了纳米复合材料的光催化活性。在使用 1.0 wt% 的 Ni:ZnO/Fe3O4 纳米复合材料和 0.01 M H2O2 时，光催化性能不断提高。结合使用 H2O2 和 1.0 wt% NZF 纳米复合材料对 100 mg/l 的二嗪农的光催化降解效率从 44% 提高到 82%。二嗪农的光催化机理分为三个途径。

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来源期刊

Journal of the Taiwan Institute of Chemical Engineers 工程技术-工程：化工

CiteScore

9.10

自引率

14.00%

发文量

362

审稿时长

35 days

期刊介绍： Journal of the Taiwan Institute of Chemical Engineers (formerly known as Journal of the Chinese Institute of Chemical Engineers) publishes original works, from fundamental principles to practical applications, in the broad field of chemical engineering with special focus on three aspects: Chemical and Biomolecular Science and Technology, Energy and Environmental Science and Technology, and Materials Science and Technology. Authors should choose for their manuscript an appropriate aspect section and a few related classifications when submitting to the journal online.

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