Research Progress of TiO2 Modification and Photodegradation of Organic Pollutants

Inorganics, Journal Year: 2024, Volume and Issue: 12(7), P. 178 - 178

Published: June 26, 2024

Titanium dioxide (TiO2) photocatalysts, characterized by exceptional photocatalytic activity, high photoelectric conversion efficiency, and economic viability, have found widespread application in recent years for azo dye degradation. However, inherent constraints, such as the material’s limited visible light absorption stemming from its bandgap swift recombination of charge carriers, impeded broader potential. Encouragingly, these barriers can be mitigated through modification TiO2. In this review, common synthesis methods TiO2 are reviewed, research progress technology at home abroad is discussed detail, including precious metal deposition, transition doping, rare earth composite semiconductors, polymers. These techniques effectively enhance capacity region reduce rate carriers electrons, thus significantly improving performance. Finally, paper looks forward to future development direction materials, exploration new modified in-depth mechanism research, performance optimization practical applications, provide useful references further materials.

Language: Английский

The Emerging Role of Nanoparticles Combined with Either Radiotherapy or Hyperthermia in Head and Neck Cancer: A Current Review

Cancers, Journal Year: 2025, Volume and Issue: 17(5), P. 899 - 899

Published: March 6, 2025

Head and neck cancer (HNC) includes various malignancies represents the seventh most common worldwide. The early diagnosis of HNC results in a 70-90% five-year survival rate, which declines with locally advanced stages disease. Current care employs multimodal strategy encompassing surgery, radiation therapy (RT), chemotherapy, immunotherapy, while treatment options vary according to stage, tumor features, patient characteristics. About 75% patients will benefit from RT, either as primary or adjuvant following surgical resection. Technological improvements such intensity-modulated RT (IMRT) image-guided (IGRT), have enhanced targeting minimized adjacent healthy tissue irradiation also expanding recurrent metastatic setting. Innovative therapeutic strategies for integrate gene therapy, molecular targeted photodynamic photothermal nanoparticles (NPs), objective optimizing control reducing damage normal tissues. NPs are emerging possible radiosensitizers treatment, enhancing efficacy immunotherapy. In vivo vitro studies on tumors containing gold (Au), gadolinium (Gd), hafnium oxide (HfO2) show promising destruction rates, indicating their potential clinical application. Hyperthermia, investigated an adjunct potentially improves outcomes when combined advancements nanotechnology renewing interest this approach HNC. At present, NBTXR3 is sole NP that being trials enhancement RT.

Language: Английский

Multi-Criteria Decision-Making Approach for Pre-Synthesis Selection of the Optimal Physicochemical Properties of TiO2 Photocatalytic Nanoparticles for Biomedical and Environmental Applications

Molecules, Journal Year: 2024, Volume and Issue: 29(16), P. 3726 - 3726

Published: Aug. 6, 2024

Nanomaterials are widely used in several biomedical and environmental applications, due to their ideal properties. However, the synthetic characterization procedure requires significant costs has a negative impact. Various methods available order control pre-synthesis design of produced materials, predicting behavior minimizing series experiments. Multi-Criteria Decision-Making is proposed this study determine best combination physicochemical parameters define alternative among fifteen different samples nanostructured titanium dioxide. In particular, Technique for Order Preference by Similarity Ideal Solution (TOPSIS) method was applied achieve final ranking alternatives avoiding trials that would follow testing biological effect photocatalytic degradation organic pollutants. Thus, approach helps us stay environmentally ethically correct, saving time, money, energy also providing an optimization nanomaterials developed.

Language: Английский