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Transition metal ions and tombarthite elements were doped in the surface of TiO2 Catalyst,which could make TiO2 lattice engender defect,Change crystallinity and alter the particles structure and surface properties, accordingly, the light response range was extended,and the effective separation light electronic-the cavity was promoted,lastly, the catalyst photocatalytic activity was improved[3-7].The results of Srinivasan[8] shew that Sol–gel synthesis and sulfation process has been carried out to prepare Fe3+/Zn2+ co-doped and SO42− impregnated TiO2 photocatalysts, Structural (XRD) characteristics of SO42− impregnated TiO2 reveals the presence of anatase nanoparticles with average grain sizes of 9.8 and 14.8 nm.
The results of ZHENG Huarong[21] shew that the influence of Pt as a promoter on the photocatalytic performance of nitrogen-doped TiO2 was described.The loading of Pt enhanced the material absorption in visible light region,which is assigned to background absorption that has detrimental effect on photocatalytic activity.However,the highly dispersed Pt on the surface of N-TiO2 remarkably altered the surface structure(surface state)of N-TiO2,contributing largely to the enhanced photocatalytic activity of nitrogen-doped TiO2.The results of SUN Hai-jian[22] shew that a novel sulfur-doped TiO2/Ti photoelectrode was prepared by anodization.Results in-dicate that sulfur-doped TiO2/Ti photoelectrode shows a good photoelectrocatalytic activity on the removal and mineralization of dimethyl phthalate(DMP)under visible light irradiation when the prepared conditions are voltage of 160 V，current density of 100 mA/cm2 and sulfur concentration of 750 mg/L．The doped sulfur can significantly improve the photoelectrocatalytic
From the coordination number of 4.3 and a Pt−Cl distance of 2.28 Å, as calculated from extended X-ray absorption fine structure results, we conclude that the platinum salt is present as PtCl4.
At present the key problem was deepgoing exploration on visible light catalytic mechanism, enhancing the utilization rate of the sunlight, reaction process of reactant,pointing out the internal relations of structure factors and light catalytic performance,lastly,Visible light response TiO2-based photocatalytic materials that possessed high activity and high stability will be found.
The Journal of Physical Chemistry B,1998, 102 (52), pp 10765–10771

Crystallographic analysis was performed using a D8 Advance X-ray diffractometer (Bruker, Germany) equipped with Cu Kα radiation (λ = 1.5406 Å) to determine the crystal structure and phase composition.
Textural properties of BC, Fe₃O₄, and BC/Fe₃O₄ composite Sample BET Surface Area (m²/g) Total Pore Volume (cm³/g) Mean Pore Diameter (MPD) (nm) BC 42.65 0.089 16 Fe3O4 8.09 0.25 12.96 BC/Fe3O4 25.67 0.12 14.23 The nitrogen adsorption-desorption isotherms of BC, Fe₃O₄, and BC/Fe₃O₄ indicate a mesoporous structure.
First, while H⁺ ions can effectively replace adsorbed metal ions through ion exchange, the strong acid environment causes partial hydrolysis of the BC/Fe3O4 composite structure [23].
The results also highlight the importance of considering water chemistry when applying BC/Fe3O4 for heavy metal removal, as the presence of certain ions can significantly impact its performance.
These superior capacities stem from the material's specific characteristics: a surface area of 25.67 m²/g and an optimized pore structure that maximizes the synergistic interaction between bacterial cellulose and magnetite.

The increased surface area and passage due to internal structure of the foams helps dynamic mixing of a moving fluid inside the foams Dukhan et al. [2].
The foam material are widely used in various industries such as in chemistry as catalyst, in electrical cooling as heat exchangers, low emission combustors in energy and volumetric air receivers in concentrated solar power.
Due to unique hierarchical structure and rheological properties in porous media foam has been a topic of interest of fundamental and systemic studies.
The evaluation of hsf in different porous structures many of equations are available in [12-16].
Poulikakos, On the effective thermal conductivity of a three-dimensionally structured fluid-saturated metal foam, International Journal of Heat and Mass Transfer, 44 (2001) 827-836

This mechanism assumes that the nucleus of the new phase is produced by transforming the lattice structure into that of the product phase without modifying the local concentration.
The structure of a triple junction may differ considerably from that of an ordinary grain boundary.
Discontinuities in the structure of concentric bright rings mark the presence of grain boundaries.
Obviously, a polycrystalline structure with a grain size of about 15 nm has formed.
However, due to the outstanding sensitivity of TAP, it is possible to determine even smallest modifications of the interfacial chemistry.

The structure of the coatings was characterized by scanning electron microscopy and X-ray diffraction analysis.
After the above testing, the coatings were evaluated by observing the external appearance and examining the structure of the coatings by X-ray diffraction analysis and electron probe microanalysis (EPMA).
Nakazawa, Yogyo-Kyokai-shi, Vol 93(No.8), 1985, pp.418-425 [11]Dictionary of Physics and Chemistry, : B.

The reactor system comprises of stainless steels rods and a helical structure for the cathodic component (SS 304), as well as an iron pipe for the anodic component (Fe).
Al-Furaiji, “Removal of dyes by agricultural waste,” Sustainable Chemistry and Pharmacy, 16, 2020, doi: 10.1016/j.scp.2020.100259
Zularisam, “Electrocoagulation treatment of raw palm oil mill effluent: Effect of operating parameters on floc growth and structure,” Journal of Water Process Engineering, 33, 2020, doi: 10.1016/j.jwpe.2019.101114

Japan. 3 Department of Biological Sciences and Chemistry, University of Nizwa, Nizwa, 616, Oman atoribio.fotero@upct.es, bjgabriel.martinez@upct.es, clvalero01@hotmail.com, dasaka-kinji@aist.go.jp, eaiyahya123@gmail.com Keywords: Sensor, actuator, electrochemical reaction, conducting polymers, carbon nanotubes, graphene.
Artificial muscles based on conducting polymers, fullerene derivatives, carbon nanotubes, graphenes or other carbon derivative molecular structures are electrochemomechanical actuators.
Deep reduction states with conformational packing of the polymeric structure, and subsequent conformational relaxation kinetic control of the oxidation reaction are avoided.

Figure 8: Schematic illustration of Li+-solvation structures in electrolytes containing polymers and solvent molecules.
Henderson, Competitive lithium solvation of linear and cyclic carbonates from quantum chemistry, Phys Chem Chem Phys. 18 (2016) 164–175
Chandrasekhar, Polymer Solid Electrolytes: Synthesis and Structure, in: V.
Kilb, The morphology and internal structure of poly(ethylene oxide) spherulites, J.
Schroeder, Structure and lithium transport phenomena in a new tripodand-grafted polysiloxane, POLIMERY. 56 (2011) 294–301

Hong 1 Institute of Materials Science, 2Institute of Chemistry Vietnamese Academy of Science and Technology 18 Hoang Quoc Viet, Cau Giay, Ha Noi Keywords: Magnetic nanoparticles, Magnetic heating, hyperthermia, desorption Abstract: This work presents the results of our recent studies on magnetic heating of several nanomaterial systems.

Influence of the matrix structure 3.4.
Since 1992, several matrices have been developed with different mesostructures, such as 2D hexagonal structure, with p6mm plain group, like MCM-41[9] and SBA-15 [12], 3D-cubic structure with Ia-3d space group, like MCM-48 [13] or laminar structure, with p2 space group, like MCM-50 [14] (Fig. 1b).
Composition, structure and textural properties of silica-based bioceramics synthesized with surfactants as structure-directing agents.
Influence of the matrix structure The influence of the pore connectivity and structure into the drug release kinetics was observed using different mesostructures as host matrices.
[20] IUPAC Manual of Symbols and Terminology, Appendix 2, Pt. 1, Colloid and Surface Chemistry: Pure Appl.