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Adsorption properties and availability changes of molybdenum oxide nanoparticles in acidic yellow-brown soil

文献类型： 外文期刊

作者： Zheng, Xiaomei 1 ; Wu, Songwei 1 ; Tan, Qiling 1 ; Hu, Chengxiao 1 ; Sun, Xuecheng 1 ;

作者机构： 1.Huazhong Agr Univ, Coll Resources & Environm, Microelement Res Ctr, Shizishan St 1, Wuhan 430070, Peoples R China

2.Minist Agr, Key Lab Arable Land Conservat Middle & Lower Reach, Wuhan 430070, Peoples R China

3.Huazhong Agr Univ, Shenzhen Inst Nutr & Hlth, Wuhan 430070, Peoples R China

4.Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Genome Anal Lab,Minist Agr, Shenzhen Branch,Guangdong Lab Lingnan Modern Agr, Shenzhen 518000, Peoples R China

关键词： Molybdenum oxide nanoparticles; Adsorption; Molybdenum-deficient; Available molybdenum; Molybdenum forms

期刊名称：JOURNAL OF SOILS AND SEDIMENTS （ 影响因子：3.0； 五年影响因子：3.4 ）

ISSN： 1439-0108

年卷期： 2025 年 25 卷 4 期

页码：

收录情况： SCI

摘要： PurposeNanotechnology has been considered a feasible technology to reduce contamination and ensure food security. Molybdenum oxide nanoparticles (NPMo) show "low volume and high efficiency" characteristics in agriculture, indicating great potential for agricultural field. Therefore, the study of the availability and morphological transformation of NPMo in soil is extremely meaningful for the sustainable development of nano-agrochemicals.Materials and methodsBatch and soil incubation experiments were conducted with Mo-deficient acidic yellow-brown soil, and two Mo fertilizers (ammonium molybdate, IMo; and NPMo) were used to investigate the isothermal adsorption and transformation characteristics of NPMo and its differences with IMo.Results and discussionThe results indicated that pH and phosphorus additions affected soil adsorption of NPMo as much as IMo, with higher adsorption in the range of pH 1-4 and a sharp decrease in molybdenum adsorption as the level of exogenous phosphorus additions was increased; moreover, NPMo adsorption was lower in soils as compared to IMo. Exogenous Mo causes a redistribution of soil Mo morphology towards the weakly crystallized ferromanganese-conjugated state of Mo and that Al2(MoO4)3 was the predominant assemblage in soil. Meanwhile, compared to IMo, NPMo treatment had higher Mo content extracted with chemical reagent.ConclusionsNPMo can reduce the adsorption and immobilization of Mo in acidic yellow-brown soil compared to IMo, thus increasing the availability of Mo.

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