氧化钼的多尺度结构设计与近红外光热性能研究

doi:10.11896/cldb.25070113

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Abstract As a novel tumor therapy strategy, photothermal therapy (PTT) enables targeted ablation of cancer cells by leveraging the thermal energy conversion capability of near-infrared (NIR) responsive materials, which is characterized by minimal invasiveness, high targeting precision, and low systemic toxicity. Compared with the conventional near-infrared region I (NIR-I, 780—1 000 nm), near-infrared region II (NIR-II, 1 000—1 700 nm) light demonstrates distinct advantages, including deeper tissue penetration depth and lower light energy loss. Among various NIR-responsive materials, molybdenum oxide nanomaterials have garnered extensive research attention due to their tunable optical properties and surface characteristics. In this study, ammonium molybdate tetrahydrate and molybdenum powder were employed as raw materials, and molybdenum oxide nanomaterials with three distinct morphology (nanoparticles, nanobelts, and nanosheets) were successfully fabricated via hydrothermal/solvothermal methods through the precise regulation of reaction parameters. The phase structure, micromorphology, absorption spectra, and band gap of the molybdenum oxide nanomaterials with different morphology were systematically analyzed. Furthermore, under bio-safe po-wer levels of NIR-I and NIR-II light irradiation, the relationships between the multiscale structure of the samples and their photothermal heating performance, photothermal conversion efficiency, and photothermal stability were comparatively investigated. The results indicated that nano-MoO_3-x samples exhibit excellent NIR-II photothermal conversion performance, while the differences in nanoscale morphology (nanoparticles/nanobelts/nanosheets) significantly impact their photothermal conversion efficiency. In particular, the two-dimensional (2D) nanosheets, benefiting from their unique layered structure and surface plasmon effect, achieve efficient absorption of NIR-II light and effective thermal energy conversion. Consequently, 2D molybdenum oxide nanosheets hold great potential for application in the field of NIR-II-responsive photothermal therapy for cancer.

Key words： molybdenum oxide morphology control near-infrared light photothermal performance

Published: 25 June 2026 Online: 2026-07-08

CLC number:

TB34

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	Articles by authors
	LIU Shuang
	LIU Hongyou
	XIE Dongsheng
	LI Genyuan
	JIANG Wenda
	LIU Baiyu
	LI Xuejiao

Cite this article:

LIU Shuang,LIU Hongyou,XIE Dongsheng, et al. Study on Multi-scale Structural Design and Near-infrared Responsive Photothermal Properties of Molybdenum Oxide[J]. Materials Reports, 2026, 40(12): 25070113-7.

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https://www.mater-rep.com/EN/10.11896/cldb.25070113 OR https://www.mater-rep.com/EN/Y2026/V40/I12/25070113

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