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65 articles for “photocatalytic”
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Synthesis, Characterization and Photocatalytic Activity of Bismuth Doped Titanium Dioxide under Different Light Sources
Abstract: 800x600 Photocatalysis is a recognized approach where light energy is employed to excite the semiconductor material and produce electron-hole pairs. These electron-hole pairs eventually involves in the detoxification of pollutants (in air or water) & water splitting. TiO2 photocatalyst shows poor activity in visible light due to its wide band gap (3.2 eV), which restricts its use under Sun light. In the present work, photocatalytic activity of TiO2 was enhanced …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 4, Issue 3, 2014 · pp. 23–31 Read article
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Treatment of Municipal Wastewater by Photocatalytic Method
Abstract: Normal 0 false false false EN-IN X-NONE HI MicrosoftInternetExplorer4 In this study, the semiconductor photocatalytic disinfection of spring water and of secondary treated municipal wastewater was investigated. Natural water from a spring in Ethiopia prefecture, which is used for the water supplies for the city of Ethiopia, Crete, and samples from the effluents of the secondary settling tank of the municipal wastewater treatment plant of Ethiopia were collected. The samples …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 3, Issue 3, 2013 · pp. 29–36 Read article
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Green Synthesis of silver nanoparticles using Moringa Oleifera leaf extract: Investigation of Photocatalytic activity
Abstract: In the present study, cost effective and environment friendly silver nanoparticles were synthesized using Moringa Oleifera leaves extract as the reducing and capping agent. The nanoparticles (AgNPs) were characterized using UV-visble, FT-IR, XRD, and Scanning electron microscopy (SEM) analysis. The surface plasmon resonance peaks in absorption spectra for silver colloidal solution showed an absorption peak at 443 nm in a UV-visible spectrum. From the XRD data, we suggest the occurrence …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 8, Issue 2, 2018 · pp. 60–68 Read article
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Surface Analysis of Tungsten Doped TiO2 Films and Its Effect on Photocatalytic Degradation of Environmental Pollutants
Abstract: Normal 0 false false false Nanocrystalline TiO2 films, undoped and doped W6+ ions have been prepared on cleaned glass substrate by sol-gel route. Formation of anatase TiO2 phase has been confirmed by XRD analysis of the samples annealed at 550oC for 5 hours. Size of nanocrystals calculated by Debye-Scherrer’s formula and measured by TEM was found to decrease with increase in doping level. Average nanocrystal diameter in undoped sample is …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 1, Issue 1, 2011 · pp. 26–41 Read article
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Silver Nanoparticles Biosynthesis Using Grape Extract and Its Application in Photocatalytic Dye Degradation
Abstract: AbstractGrapes are known for its antioxidant properties. Aqueous grape extract is used in the current study as a reducing and stabilising agent in the production of silver nanoparticles. Silver nanoparticles were synthesized in single step method, at room temperature, under magnetic stirring without application of external energy. Silver nanoparticles are substantial for its application in numerous areas such as medicine, agriculture, food, chemical sector etc. Synthesis and optimization of silver …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 13, Issue 3, 2022 · pp. 1–8 Read article
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Cobalt-Iron Sulfide and Cobalt Sulfide of Cobalt –III Dithiocarbamate Complexes Synthesis and Efficacy for Photocatalytic Dilapidation of Tints
Abstract: Dithio Carbamate compounds comprising pyrrole moiety which is a hetero cyclic fragrant Carbon- based composite for identifying of anions of Cobalt-III, Methyl Ferro Cenyl Sulfoxide and Nickel-II complexes were used as only basis originators on behalf of working out of Sulfide & Iron Sulfide of Cobalt atoms. Infrared spectral notes on nanoparticles endorse the occurrence of coating agent – Tri- ethylenetetramine. The exploration of nano particles by photo reagents to …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 2, Issue 1, 2024 · pp. 01–06 Read article
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Advances in Photocatalytic Catalysts for Wastewater Treatment
Abstract: Water is a fundamental component of the life support system and is indispensable for the survival of all living organisms. Life cannot exist without water, and human societies depend on it for drinking, agriculture, industry, and sanitation. Water resources are increasingly under pressure in terms of both quality and availability, largely due to rapid industrial development, expanding urban areas, and rising population levels. These human-driven activities have played a major …
Published in Journal of Catalyst & Catalysis · Vol. 13, Issue 1, 2026 · pp. 44–56 Read article
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Activation Energy in Photochemical and Thermally Driven Reactions: Mechanistic Insights, Kinetic Modelling and Photocatalytic Applications
Abstract: Chemical reactions constitute fundamental processes in which reactants are transformed into products through the breaking and formation of chemical bonds. In photochemical systems, these transformations are initiated or influenced by the absorption of light, making energy transfer mechanisms particularly significant. A key parameter governing reaction kinetics is activation energy, defined as the minimum energy required for reactant molecules to undergo a successful transformation. This article focuses on the role of …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 4, Issue 1, 2026 · pp. 21–26 Read article
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A Detail Opto-electronic and Photocatalytic Study of Amorphous Carbon Nanotubes—MoS2 Hybrids
Abstract: Amorphous carbon nanotube – MoS2 nanohybrids were synthesized by simple hydrothermal method where two different precursor, thiourea and L-cysteine were used as a source of sulfur. Amorphous carbon nanotube has been prepared separately by a low temperature chemical process. Amorphous carbon nanotube-MoS2 nanohybrids were characterized by using X-ray diffraction, energy dispersive X-ray analysis, field emission scanning and high resolution transmission electron microscope, Raman spectrometer. Dye removal (from water) performance of …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 21, Issue 2, 2019 · pp. 19–30 Read article
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Synthesis and Structural Characterization of Nanocrystalline CeO2 and Ce0.95Cu0.05O2 Solid Solution Catalysts: Properties and Applications
Abstract: The main study and the development of CeO2 and Cu-doped CeO2 nanocrystals containing transition- metal species are of crucial importance for understanding the preparation and fabrication of CeO2 and Cu-doped CeO2 nanoparticles by solution combustion technique to taken glycine as fuel. The structural properties of Ce1-xCuxO2 nanocrystals were examined by investigating the influence of cerium dioxide and Cu dopant ions. The CeO2 single-phase cubic system was successfully incorporated with Cu …
Published in Journal of Catalyst & Catalysis · Vol. 11, Issue 3, 2024 · pp. 29–38 Read article
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Recent Advances in Crystal Defect Engineering of Semiconductor Photocatalysts for Sustainable Environmental and Energy Applications
Abstract: Semiconductor photocatalysis has emerged as one of the most promising green technologies for addressing environmental pollution and global energy challenges through solar energy utilization. Nevertheless, the practical application of conventional semiconductor photocatalysts is often limited by their narrow visible-light absorption, rapid recombination of photogenerated electron–hole pairs, insufficient active sites, and poor charge-transfer efficiency. Defect engineering has recently attracted significant attention as an effective strategy to overcome these limitations by deliberately …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 4, Issue 2, 2026 Read article
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Synthesis and Immobilization of N-doped Titanium Dioxide for Degradation of Amaranth Dye under Visible Light Irradiation from Light Emitting Diodes
Abstract: Titanium dioxide photocatalysis has a great potential as green and sustainable technology to treat pollutants present in water. In the present study, N-TiO2 (nitrogen doped titanium dioxide)photocatalyst was prepared by wet method using titanium tetra iso-propoxide and NH3. The calcination of the prepared photocatalyst was performed at different temperatures. The prepared catalyst was characterized by DRS, FE SEM and TEM. The N-TiO2 was immobilized on the surface of the quartz …
Published in Emerging Trends in Chemical Engineering · Vol. 3, Issue 2, 2016 · pp. 11–17 Read article
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Hydrothermal synthesis of ZnS for efficient photodegradation of Malachite green
Abstract: In this work, ZnS nanoparticles were prepared by hydrothermal method. Various characterization techniques such as X-ray diffraction (XRD), UV-visible optical spectroscopy and FT-IR spectra were used to study the structural, composition and optical properties of synthesized nanoparticles. The XRD pattern showed that the prepared ZnS nanoparticles have a cubic zinc blende structure. The band gap is calculated from absorption spectra with the help of Taucplot and is found to be …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 10, Issue 1, 2020 · pp. 11–15 Read article
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A Review on Applications of MgO based Nanocomposite Materials
Abstract: Metal oxide nanoparticles are materials of interest because of their special properties like chemical stability, photocatalytic activity, antibacterial activity due to the presence of oxygen. Among all the metal oxide particles, MgO nanoparticles were of special interest due to their anionic vacancies. MgO nanocomposite particles have non-toxic and odourless nature which makes them a suitable material for a wide range of applications. The properties that make MgO nanoparticles distinct are …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 9, Issue 3, 2019 · pp. 7–14 Read article
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Critical Guidelines for TiO2 and Ultraviolet Light Induced Disinfection in Upper Ceiling Mounted Device
Abstract: In-room air cleaners and upper room air UV light germicidal irradiation are designing control technologies that can assist with lessening the groupings of airborne microscopic organisms and contagious spores in the indoor climate. The upper ceiling mounted device is sealed with TiO2 and UV light which is efficient in action due to photocatalytic activity. TiO2 absorbs UV light strongly as compared to sun light and they form hydroxyl radicals. It …
Published in Research & Reviews : Journal of Physics · Vol. 10, Issue 3, 2021 · pp. 30–35 Read article
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A Review on Heavy Metal Removal Techniques in Water Treatment
Abstract: The removal of heavy metal ions from wastewater is crucial for environmental safety and human health due to the toxic and persistent nature of these pollutants. This review comprehensively examines various water treatment methods, including adsorption, membrane filtration, chemical precipitation, electrochemical, and photocatalytic processes. Each technique is critically analyzed in terms of removal efficiency, operating conditions, and their respective advantages and limitations. Adsorption methods, particularly those using bioadsorbents, have gained …
Published in Journal of Water Pollution & Purification Research · Vol. 11, Issue 3, 2024 · pp. 15–28 Read article
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Photocatalysis Unveiled: Fundamentals, Mechanisms, and Material Innovations
Abstract: The Industrial Revolution significantly enhanced living standards but also led to severe environmental degradation, making pollution a critical concern for both developed and developing nations. Photocatalysis, a light-driven chemical process, accelerates thermodynamically demanding reactions, such as photosynthesis, offering a promising alternative for deep solar energy storage. This method also minimizes chemical exposure and reduces environmental pollutants generated by industrial activities. A key advantage of photocatalysis is its ability to replace …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 3, Issue 1, 2025 · pp. 08–18 Read article
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Synthesis and Characterisation of Ceria Doped Titania Catalyst for the Degradation of Methylene Blue
Abstract: Photocatalytic degradation of Methylene Blue (MB) dye using synthesized ceria doped titania catalyst was performed and results were interpreted. The photocatalyst was prepared by incipient wet impregnation method, using cerium nitrate and titanium dioxide as the starting materials. The synthesized catalyst was characterized by powder X-ray diffraction (XRD), Vibrating sample magnetometer analysis (VSM), UV-Vis Diffuse reflectance measurements (DRS-UV) and UV analysis. The XRD pattern indicated that the sample has a …
Published in Journal of Water Pollution & Purification Research · Vol. 7, Issue 3, 2020 · pp. 26–33 Read article
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ZnO Nanostructure Shape Effects in Photocatalysis of Methylene Blue
Abstract: Nowadays, dyes are used in the food industry, textile industry, paper industry, hair coloring, light-harvesting arrays, photoelectrochemical cells, etc. Most of the dyes are nonbiodegradable, toxic, carcinogenic, and consist of organic compounds. These dye wastages are discharged into water bodies and the environment causing serious hazards to the marine ecosystem as well as the humans extensively. To treat toxic dyes traditional methods such as adsorption, activated carbon, ultrafiltration, and reverse …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 722–727 Read article
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Tailoring The Electrochemical Interface of Graphene–Gd₂O₃ Nanocomposites for Advanced Energy Storage
Abstract: Graphene–Gd₂O₃ nanocomposites were synthesized by incorporating varying concentrations of reduced graphene oxide (rGO) into Gd₂O₃ using a straightforward room-temperature solution method. The composites were analyzed using various distinct characterization techniques, including X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). Electrochemical measurements, particularly cyclic voltammetry (CV), demonstrated that the incorporation of graphene significantly enhanced the electrochemical performance …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 369–388 Read article