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一步熱分解法形成的MoO3在無光條件下的抗菌性能
作者:
作者單位:

1.西安石油大學(xué)材料科學(xué)與工程學(xué)院 2.中國科學(xué)院深圳先進(jìn)技術(shù)研究院;2.中國科學(xué)院深圳先進(jìn)技術(shù)研究院;3.西安石油大學(xué)

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通訊作者:

中圖分類號:

TB34

基金項(xiàng)目:

廣東省自然科學(xué)基金(2022A1515011339 ), 廣東省基礎(chǔ)與應(yīng)用基礎(chǔ)研究基金聯(lián)合基金(2019A1515110631)，深圳市基礎(chǔ)研究項(xiàng)目 (Nos. JCYJ20210324120009026, JCYJ20210324101809026, JCYJ20210324102013036)，陜西省自然科學(xué)基礎(chǔ)研究計(jì)劃項(xiàng)目（項(xiàng)目號2021JM-403），陜西省教育廳科研計(jì)劃項(xiàng)目資助（項(xiàng)目號：21JC027），西安石油大學(xué)大學(xué)生創(chuàng)新創(chuàng)業(yè)訓(xùn)練計(jì)劃資助項(xiàng)目（項(xiàng)目號：YCS21212139）


Antibacterial properties of MoO3 formed by one-step thermal decomposition in the absence of light
Author:
Affiliation:

1.Xi’an Shiyou University 2.Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences;2.Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences;3.Xi’an Shiyou University

Fund Project:

Natural Science Foundation of Guangdong Province (2022A1515011339 ), Joint Fund of Basic and Applied Basic Research Foundation of Guangdong Province (2019A1515110631), Shenzhen Basic Research Project (Nos. JCYJ20210324120009026, JCYJ20210324101809026, JCYJ20210324102013036), Shaanxi Provincial Natural Science Basic Research Program (Project No. 2021JM-403), Shaanxi Provincial Department of Education Scientific Research Program (Project No.: 21JC027), Xi"an Shiyou University College Students Innovation and Entrepreneurship Training Program (Project No.: YCS21212139)

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    摘要:

    生物污損是威脅海工材料安全高效服役的重要因素，因此開發(fā)環(huán)保、成本低廉的防污材料非常必要。本文通過一步熱分解法分別在450 ℃和750 ℃制備α-MoO3粉末材料，即S450和S750。采用X射線衍射（XRD）、掃描電子顯微鏡（SEM）、紅外光譜（FTIR）對樣品進(jìn)行表征。結(jié)果顯示，450 ℃和750 ℃獲得的α-MoO3分別表現(xiàn)為納米級板狀結(jié)構(gòu)和微米級長板狀結(jié)構(gòu)。利用平板計(jì)數(shù)法評價兩種材料在無光條件下對銅綠假單胞菌（P. aeruginosa）的抗菌性能。結(jié)果顯示，S450和S750在濃度為0.25，0.5，0.75，和1 mg/ml時，其抗菌率分別為27.3%，99%，100%，100%和16.1%，30.1%，52.3%，73.6%。表明兩個條件下獲得的α-MoO3在無光條件下均表現(xiàn)出良好的抗菌性能，并且溶液pH值隨α-MoO3樣品濃度的升高而降低，Mo離子溶出量隨α-MoO3樣品濃度的升高而增加。α-MoO3在無光條件下的抗菌活性源于H3O+和Mo離子溶出的協(xié)同作用影響。與S750相比，S450表現(xiàn)出更高的抗菌率，這可能源于S450在溶液中具有更高的溶解度，因而導(dǎo)致更多的H3O+和Mo離子溶出。

    Abstract:

    Biofouling is an important factor threatening the safe and efficient service of marine engineering materials, so it is of great significance to develop efficient, environmentally friendly and low-cost antifouling materials. In this paper, two kinds of α-MoO3 powder materials were prepared by one-step thermal decomposition at 450 °C and 750 °C, designated as S450 and S750. And the samples were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM), and infrared spectroscopy (FTIR). It indicated that the α-MoO3 obtained at 450 °C and 750 °C showed nanoscale plate-like structure and micron-sized long plate-like structure, respectively. Plate counting was used to evaluate the antimicrobial effects of two materials on Pseudomonas aeruginosa (P. aeruginosa) in the absence of light. The results showed that the antibacterial rates of S450 and S750 at concentrations of 0.25, 0.5, 0.75, and 1 mg/ml were 27.3%, 99%, 100%, 100% and 16.1%, 30.1%, 52.3%, 73.6%, respectively. It indicated that both α-MoO3 obtained under the two conditions showed good antibacterial properties in the absence of light. The pH value of the solution decreases with the increase of the α-MoO3 concentration, and the concentration of Mo ions increases with the increase of the α-MoO3 concentration. The antibacterial activity of α-MoO3 in the absence of light stems from the synergistic effect of dissolution of H3O+ and Mo ions. Compared to S750, S450 exhibits higher antibacterial rate, which may be due to the higher solubility of S450, resulting in more H3O+ and Mo ions release.

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引用本文

王藝卓,張歡歡,趙惠,趙穎.一步熱分解法形成的MoO3在無光條件下的抗菌性能[J].稀有金屬材料與工程,2023,52(12):4200~4204.[Wangyizhuo, Zhanghuanhuan, Zhaohui, Zhaoying. Antibacterial properties of MoO3 formed by one-step thermal decomposition in the absence of light[J]. Rare Metal Materials and Engineering,2023,52(12):4200~4204.]
DOI：10.12442/j. issn.1002-185X.20220928

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  • 收稿日期:2022-11-29
  • 最后修改日期:2022-12-06
  • 錄用日期:2023-01-05
  • 在線發(fā)布日期: 2023-12-29
  • 出版日期: 2023-12-22