Multi-functional MnO2 nanomaterials for photo-activated applications by a plasma-assisted fabrication route.
Multi-functional MnO2 nanomaterials for photo-activated applications by a plasma-assisted fabrication route.
复制标题
DOI：
10.1039/c8nr06468g
复制
发表时间：
2018
期刊：
影响因子：
6.7
通讯作者：
D. Barreca;F. Gri;A. Gasparotto;G. Carraro;Lorenzo Bigiani;T. Altantzis;Boštjan Žener;Urška Lavrenčič Štanga
中科院分区：
文献类型：
--
作者：
D. Barreca;F. Gri;A. Gasparotto;G. Carraro;Lorenzo Bigiani;T. Altantzis;Boštjan Žener;Urška Lavrenčič Štanga
在100 °C和400 °C之间使用等离子体增强化学气相沉积（PE-CVD）在氟掺杂的氧化锡基底上制造负载的基于MnO 2的纳米材料，从氟化Mn（ii）二胺二酮盐前体开始。生长实验产生的β-MnO 2的分级形态可调从树枝状结构的准一维纳米系统作为生长温度的函数，其变化也使系统氟含量的伴随定制，以及光学吸收和带隙。初步的光催化试验旨在研究本纳米材料的光诱导亲水性（PH）和固相光催化（PC）性能，以及在光降解Plasmocorinth B偶氮染料水溶液。所获得的研究结果突出了一个有吸引力的系统的光活性，即使在可见光下，精细定制的氟含量，形态组织和光学性能的制备的纳米结构。结果表明，所合成的MnO 2纳米体系具有作为先进智能材料在防雾/自清洁和水净化等方面的潜在应用价值。
Supported MnO2-based nanomaterials were fabricated on fluorine-doped tin oxide substrates using plasma enhanced-chemical vapor deposition (PE-CVD) between 100 °C and 400 °C, starting from a fluorinated Mn(ii) diamine diketonate precursor. Growth experiments yielded β-MnO2 with a hierarchical morphology tuneable from dendritic structures to quasi-1D nanosystems as a function of growth temperature, whose variation also enabled a concomitant tailoring of the system fluorine content, and of the optical absorption and band gap. Preliminary photocatalytic tests were aimed at the investigation of photoinduced hydrophilic (PH) and solid phase photocatalytic (PC) performances of the present nanomaterials, as well as at the photodegradation of Plasmocorinth B azo-dye aqueous solutions. The obtained findings highlighted an attractive system photoactivity even under visible light, finely tailored by fluorine content, morphological organization and optical properties of the prepared nanostructures. The results indicate that the synthesized MnO2 nanosystems have potential applications as advanced smart materials for anti-fogging/self-cleaning end uses and water purification.