Surface interaction of doxorubicin with anatase determines its photodegradation mechanism: insights into removal of waterborne pharmaceuticals by TiO₂ nanoparticles

Abstract

Adsorption of pharmaceuticals on anatase nanoparticles determines the rate and intermediates formed during photodegradation.

Removal of anthracycline cytostatics from aquatic environment: Comparison of nanocrystalline titanium dioxide and decontamination agents

“…The individual band assignments were based on available literature [70–72] and are presented in Table 4.…”

“…These materials are characterized by high surface area, significant porosity, small particle size, and mechanical strength, as well as the occurrence of a significant number of defects in the crystal lattice and surface functional groups [9]. In the available literature, we can most often encounter nanostructured magnetite (Fe 3 O 4 ) adsorbents with a different surface modification for the sorption of platinum cytostatics [10] or nanostructured titanium dioxide (TiO 2 ) in combination with the UV/Vis photocatalytic degradation of anthracycline glycoside-based cytostatics [11] and derivates of pyrimidine (5-fluorouracil) [12].…”

Carbon Nitride Quantum Dots Modified TiO2 Inverse Opal Photonic Crystal for Solving Indoor VOCs Pollution

“…However, the band gap of TiO 2 is 3.2 eV, which limits the utilization efficiency of sunlight [29][30][31]. Graphitic carbon nitride (g-C 3 N 4 ), as a metal-free semiconductor with band gap of 2.7 eV and excellent chemical stability [32], has been widely investigated in photocatalytic hydrogen production with water [33], degradation of organic pollutants [34][35][36][37][38], oxidation of alcohols [39], reduction of oxygen [40], etc. Recently, graphitic carbon nitride quantum dots (CNQDs) with excellent biocompatibility and optical properties [41] which can improve solar energy harvesting, were synthesized by a lowtemperature solid-phase method [42].…”

Graphitic Carbon Nitride-Based Photocatalytic Materials: Preparation Strategy and Application

“…In the exploration of various green technologies, semiconductor photocatalysts, driven by inexhaustible and clean solar energy, have attracted wide attention due to their diverse potential in environmental and energy applications. A large number of semiconductors, including TiO 2 , ZnO, Fe 2 O 3 , BiVO 4 , CdS, NaTaO 3 , and Ag 3 PO 4 , have been developed in photocatalytic fields such as water splitting and degradation of organic pollutants, mainly depending on their band gap structure. − Among these, TiO 2 as the most popular one was first used by Fujishima and Honda as an electrode for photocatalytic water splitting . Subsequently, many modification strategies have been designed, including doping, nanostructure, and inorganic/organic molecular support, to enhance their photocatalytic activity. − However, TiO 2 only absorbs UV light due to its large band gap, accounting for 4% of the total spectrum of solar light, which limits the utilization of solar energy and reduces the photocatalytic activity.…”