CHEMICAL ENGINEERING JOURNAL
·
2019
·
IF 8.355
Jianping Sheng,Ling Zhang,Liu Deng,Yajing Han,Liqiang Wang,Haichuan He,You-Nian Liu
Tungsten oxide is a promising nanodrug in phototherapy via transforming light energy to reactive oxygen species and heat. Nevertheless, the phototherapeutic activity of the tungsten oxide nanomaterials is generally activated under 980 nm laser, which is close to the absorption of normal tissue, resulting in unfavorable heating effect on normal tissues. Therefore, the tungsten oxide nanomaterials which can be excited under 808 nm are highly required to avoid overheating and obtain deep tissue penetration of near-infrared (NIR) laser. Here, we successfully synthesized a novel dopamine enveloped tungsten oxide nanodots (WO 3−x /Dpa-Mel NPs) via facile one-step solvothermal route, using dopamine as the template and reductant in triethylene glycol solvent. Under the 808 nm laser irradiation, the as-obtained WO 3−x /Dpa-Mel NPs exhibit excellent photodynamic activity and stability. Meanwhile, the WO 3−x /Dpa-Mel NPs also possess high photothermal conversion property. Thus, the photothermal therapy (PTT) and photodynamic therapy (PDT) can be triggered simultaneously under single 808 nm laser irradiation. Additionally, the inherited good biocompatibility and dispersity in aqueous solution from dopamine hydrochloride (Dpa-Mel) also make the WO 3−x /Dpa-Mel NPs more suitable for in vivo application. The as-obtained WO 3−x /Dpa-Mel NPs exhibit an excellent synergistic phototherapy effect on solid tumor ablation in vivo without damaging healthy tissues under single 808 nm NIR light irradiation, indicating WO 3−x /Dpa-Mel NPs can serve as a multifunctional therapeutic nanoplatform to realize the synergistic cancer therapy.
✓ 已验证
产品关联
DOI
高影响因子
NANOTECHNOLOGY
·
2019
·Vol. 30
·期 25
·255703
·
IF 3.399
Ning Li,Xun Cao,Tianci Chang,Shiwei Long,Ping Jin
Pursuing excellent photochromic (PC) properties is still a longstanding challenge for energy-efficient smart coatings. Herein, we have prepared a novel series of self-coated crystalline WO3-amorphous WO3−x homojunctions by a one-step hydrothermal process, in which oxalic acid was used as a capping agent to prevent polycondensation and the crystallization of [WO6]. The as-prepared nanopowders with tight interfaces have a large specific surface area and rich surface electrons, which leads to a dramatic PC property reaching up to ΔTsol = 64.74% at the near-infrared (NIR) range of 1000–2600 nm with high luminous transmittance (Tlum = 94.6% in the virgin state and Tlum = 32.47% in the colored state). Meanwhile, the as-prepared crystalline WO3-amorphous WO3−x homojunction reveals fast reversible PC circulation; most particularly, the self-bleaching rate increases at least three times—the self-bleaching time is less than 8 h. Moreover, as the microstructure of the homojunction is tuned, the solar modulation range can be selective and tuned, so that the solar modulation efficiency is up to the best energy-saving state by controlling the main absorption according to the solar energy distribution.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2026
·
IF 8.3
Chen Chen,Sijie Chen,Yu Zhang,Jinhong Liu,Shenghui Xia,Vishal Chaudhary,Praveen Sekhar,Larry Nagahara,Chao Wang,Hui Zhang,Pengfei Cheng,Pradeep Bhadola,Wei Liu,Thomas Thundat,Zhimin Li,Ajit Khosla
Pristine metal oxide gas sensors often suffer from poor selectivity and limited polarizability. The objective of this work is to overcome these bottlenecks by developing an advanced material tailored specifically for highly sensitive and intelligent NO 2 sensing applications. Consequently, oxygen vacancy-rich 2D ultrathin Cs-doped WO 3-x nanosheets were synthesized via a solvothermal method. KPFM, UPS, and TAS confirmed that optimal Cs doping (0.08 mol%) optimizes the surface work function and drastically prolongs the photo-generated carrier lifetime (
✓ 已验证
DOI
高影响因子
Advanced Energy and Sustainability Research
·
2022
·Vol. 3
·期 12
·2200138
·
IF 0
Linlin Zhang,Lu Liu,Xiaodong Zhang,Chengjun Ge,Jianjun Liao
Pharmaceuticals and personal care products (PPCPs) have attracted widespread attention due to their durability to the environment. Therefore, it is highly desirable to develop new technologies that are environmentally friendly, energy saving, and compatible to degrade these pollutants. In this study, a vis–NIR-driven and highly efficient S-scheme photocatalyst, WO 3− x /S doped g-C 3 N 4 , is used for PPCPs degradation. The results show that the photocatalytic activity of WO 3− x /S doped g-C 3 N 4 composite system for PPCPs is much higher than that of WO 3− x and g-C 3 N 4 . The introduced WO 3− x has a great positive effect on the photocatalytic performance of WO 3− x /S doped g-C 3 N 4 S-scheme composite photocatalyst for both naproxen and diclofenac. Due to the fast photogenerated carrier separation brought by the S-scheme, the WO 3− x /S-doped g-C 3 N 4 nanocomposite exhibits enhanced performance in photocatalytic PPCPs degradation. The degradation rate of naproxen is 99.2%, and the degradation rate of diclofenac can also be as high as 99.5%. This research has important reference value for the synthesis of WO 3 -based S-scheme photocatalysts for energy and environmental applications.
✓ 已验证
DOI
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
·
2018
·Vol. 20
·期 25
·17268-17278
·
IF 3.906
Weicheng Huang,Jinxin Wang,Lang Bian,Chaoyue Zhao,Danqing Liu,Chongshen Guo,Bin Yang,Wenwu Cao
A WO3−x/TiO2−x nanotube array (NTA) heterojunction photoanode was strategically designed to improve photoelectrocatalytic (PEC) performance by establishing a synergistic vacancy-induced self-doping effect and localized surface plasmon resonance (LSPR) effect of metalloid non-stoichiometric tungsten suboxide. The WO3−x/TiO2−x NTA heterojunction photoanode was synthesized through a successive process of anodic oxidation to form TiO2 nanotube arrays, magnetron sputtering to deposit metalloid WO3−x, and post-hydrogen reduction to engender oxygen vacancy in TiO2−x as well as crystallization. On the merits of such a synergistic effect, WO3−x/TiO2−x shows higher light-harvesting ability, stronger photocurrent response, and resultant improved photoelectrocatalytic performance than the contrast of WO3−x/TiO2, WO3/TiO2 and TiO2, confirming the importance of oxygen vacancies in improving PEC performance. Theoretical calculation based on density functional theory was applied to investigate the electronic structural features of samples and reveal how the oxygen vacancy determines the optical property. The carrier density tuning mechanism and charge transfer model were considered to be associated with the synergistic effect of self-doping and metalloid LSPR effect in the WO3−x/TiO2−x NTA.
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）