Showing 81 - 100 results of 222 for search 'diffuse reflectance (efficient OR efficiency)', query time: 0.14s Refine Results
  1. 81

    Green Synthesis of Co3O4/AC Nanocomposite using Bryophyllum pinnatum Leaf Extract for Enhanced Photodegradation of Malachite Green Dye by Sumaiyya Patel, Dinesh Hase, Kanhaiyalal Bhavsar, Vaishali Murade, Gajanan* Pandhare

    Published 2025-05-01
    “…The optical absorption properties were studied, and band gap values were calculated from UV-visible diffuse reflectance spectroscopy (UV-Vis DRS). The green synthesized Co3O4/AC nanocomposite exhibited an excellent degradation ability (96.60%) in comparison with pristine Co3O4 nanoparticles. …”
    Get full text
    Article
  2. 82

    Environmentally sustainable fabrication of SnO2/fly ash/biochar nanocomposite for enhanced photocatalytic performance for degradation of Ofloxacin and Rose Bengal by Khushboo Kumari, N. S. Moyon, Mohammed Ahmaruzzaman

    Published 2025-04-01
    “…Transmission electron microscopy, X-ray powder diffraction, Scanning electron microscopy, X-ray photoelectron spectroscopy, photoluminescence spectroscopy and UV-Vis diffuse reflectance spectroscopy were used to characterize the prepared composite’s structure, surface morphology, composition, and surface area. …”
    Get full text
    Article
  3. 83

    Experimental Study on Bioluminescence Tomography with Multimodality Fusion by Yujie Lv, Jie Tian, Wenxiang Cong, Ge Wang

    Published 2007-01-01
    “…To verify the influence of a priori information on the nonuniqueness problem of bioluminescence tomography (BLT), the multimodality imaging fusion based BLT experiment is performed by multiview noncontact detection mode, which incorporates the anatomical information obtained by the microCT scanner and the background optical properties based on diffuse reflectance measurements. In the reconstruction procedure, the utilization of adaptive finite element methods (FEMs) and a priori permissible source region refines the reconstructed results and improves numerical robustness and efficiency. …”
    Get full text
    Article
  4. 84

    Controllable Synthesis of Zn2GeO4 Nanorods for Photocatalytic Reduction of Aqueous Cr(VI) and Oxidation of Organic Pollutants by Jin Liu, Xiaodan Jin, Yurong Shi, Mingming Qiao

    Published 2015-01-01
    “…The composition, morphology, and optical properties of as-synthesized Zn2GeO4 samples were characterized by X-ray diffraction, scan electron microscopy, and UV-vis diffuse reflectance spectra. The photocatalytic properties of Zn2GeO4 nanorods were evaluated by the reduction of Cr(VI) and oxidation of organic pollutants in aqueous solution. …”
    Get full text
    Article
  5. 85

    Graphene-Doped Titanium Niobate for the Hydrogen Production by Samara Letiéle dos Santos, Annelise Kopp Alves

    Published 2025-07-01
    “…The electrocatalysts were characterized by thermogravimetric analysis (TGA), scanning electron microscopy (SEM), diffuse reflectance and linear voltammetry to analyze the thermal properties, morphology, band gap and electrolytic performance, respectively. …”
    Get full text
    Article
  6. 86

    Doping of commercial TiO2 nanoparticles (UV100) with urea and investigation of their photocatalytic activity in removing an environmental pollutant (C.I. Acid Red 27) under visible... by Zahra Mahmoudi

    Published 2024-12-01
    “…The characteristics of the doped nanoparticles were analyzed using X-ray diffraction (XRD), diffuse reflectance spectroscopy (DRS), BET, and X-ray photoelectron spectroscopy (XPS). …”
    Get full text
    Article
  7. 87

    Design, synthesis, and optimization of a novel ternary photocatalyst for degradation of cephalexin antibiotic in aqueous solutions by Zeynab Abdeyazdan, Mohammad Rahmati, Arjomand Mehrabani-Zeinabad, Masoud Habibi Zare

    Published 2025-03-01
    “…The characteristics of photocatalyst with optimum composite (3 wt% of Fe and 11 wt% Bi2O3) were also investigated by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), diffuse reflectance spectra (DRS) and FTIR. The DRS spectra approved that the adsorption wavelength of Fe-doped TiO2–Bi2O3 is in the visible light range. …”
    Get full text
    Article
  8. 88

    Synthesis and Characterization of a Novel Sol–Gel-Derived Ni-Doped TiO<sub>2</sub> Photocatalyst for Rapid Visible Light-Driven Mineralization of Paracetamol by Nicola Morante, Katia Monzillo, Vincenzo Vaiano, Zukhra C. Kadirova, Diana Sannino

    Published 2025-03-01
    “…The catalysts were characterized through Raman spectroscopy, UV–Vis diffuse reflectance spectroscopy (UV–Vis DRS), and surface area measurements. …”
    Get full text
    Article
  9. 89

    Photo-Enhanced Peroxymonosulfate Activation via Well-Dispersed Cobalt Nanoparticles Encapsulated on Carbon Nitride for 2,8-Dichlorodibenzo-p-dioxin Removal by Yao Yue, Teer Wen, Yunfei He, Xuetong Qu, Jibo Dou, Yuchi Zhong, Jiafeng Ding, Hangjun Zhang

    Published 2025-04-01
    “…The catalysts prepared were characterized using SEM, XPS, photoluminescence (PL), and UV-Vis diffuse reflectance spectroscopy (UV-Vis DRS). Among them, 2CoCN with an optimal Co content exhibited the highest photocatalytic efficiency, achieving 90.5% degradation of 2,8-DCDD within 160 min under visible light/persulfate oxidation (Vis+PMS+2CoCN system). …”
    Get full text
    Article
  10. 90

    Dynamically Cyclic Fe2+/Fe3+ Active Sites as Electron and Proton-Feeding Centers Boosting CO2 Photoreduction Powered by Benzyl Alcohol Oxidation by Ben Lei, Gaofeng Zhou, Zhongyou Gong, Chao Liu, Ying Zhou, Vitaliy P. Guro, Yanjuan Sun, Jianping Sheng, Fan Dong

    Published 2025-01-01
    “…In situ Raman and ultraviolet-visible diffuse reflectance spectra revealed that the dynamic Fe2+/Fe3+ redox loop within the Fc unit serves as the actual active site, facilitating the activation of substrate molecules. …”
    Get full text
    Article
  11. 91

    Enhanced photocatalytic degradation of Rhodamine B using polyaniline-coated XTiO3(X = Co, Ni) nanocomposites by Mariyem Abouri, Abdellah Benzaouak, Mohamed Elouardi, Lahcen El Hamdaoui, Fatima Zaaboul, Khalil Azzaoui, Belkheir Hammouti, Rachid Sabbahi, Shehdeh Jodeh, Mohammed Alaoui El Belghiti, Adnane El Hamidi

    Published 2025-01-01
    “…At the same time, Fourier transform infrared spectroscopy (FTIR) verified the successful deposition of PANI through characteristic functional group vibrations. Diffuse reflectance spectroscopy (DRS) revealed reduced band gaps of 2.63 eV for 1wt.% PANI@NiTiO3 and 2.46 eV for 1wt.% PANI@CoTiO3, enhancing light absorption across UV and visible ranges. …”
    Get full text
    Article
  12. 92

    Optimization of photocatalytic degradation of sulfamethoxazole from wastewater using developed N-doped TiO2/biochar by Hailu Ashebir, Saeideh Babaee, Palesa Diale, Abebe Worku, T.A.M. Msagati, Jemal Fito Nure

    Published 2025-06-01
    “…Characterization via X-ray diffraction (XRD) showed a predominant anatase phase, Diffuse Reflectance Spectroscopy (DRS) indicated a bandgap of 2.56 eV, and Fourier Transform Infrared Spectroscopy (FTIR) confirmed nitrogen doping. …”
    Get full text
    Article
  13. 93

    Transition metal doped TiO2: physical properties and photocatalytic behaviour by A. Di Paola, S. Ikeda, G. Marcì, B. Ohtani, L. Palmisano

    Published 2001-01-01
    “…In particular, the TiO2/Cu powders showed to be more photoactive of bare TiO2 for the ethanoic acid oxidation while the TiO2/W samples were more efficient for 4-nitrophenol degradation. A tentative interpretation is provided on the basis of the values of the points of zero charge of the powders and of the rate constants of recombination of photogenerated electrons and holes, determined by femtosecond pump-probe diffuse reflectance spectroscopy (PP-DRS).…”
    Get full text
    Article
  14. 94

    Normal Heptane Reforming of Promoted Platinum Composite Catalysts: Preparation, Characterization and Catalytic Performance by Mohammad Hasan Peyrovi, Nastaran Parsafard, Amir Sajedi

    Published 2020-03-01
    “…For this purpose, the properties of the catalysts such as X-ray diffraction, X-ray fluorescence, Fourier-transform infrared spectroscopy, Ultraviolet–visible diffuse reflectance spectroscopy, NH3-temperature programmed desorption, H2 chemisorption, N2 adsorption-desorption, and thermal gravimetric analysis were used. …”
    Get full text
    Article
  15. 95

    Synthesis of TiO2/Pd and TiO2/PdO Hollow Spheres and Their Visible Light Photocatalytic Activity by Jing Yan, Xiaojuan Li, Bo Jin, Min Zeng, Rufang Peng

    Published 2020-01-01
    “…The structure and optical properties of the as-prepared samples were characterized by X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, Brunauer-Emmett-Telleranalysis, Barrett-Joyner-Halenda measurement, and UV-Vis diffuse reflectance spectroscopy. The photocatalysis efficiencies of all samples were evaluated through the photocatalytic degradation of rhodamine B under visible light irradiation. …”
    Get full text
    Article
  16. 96

    Liquid and frozen multilayers of decanol in zeolites as microreactors for direct and oxygen mediated triplet-triplet annihilation of porphyrin by Peter P. Levin, Silvia M. B. Costa

    Published 2002-01-01
    “…The kinetics of triplet state decay and concomitant delayed fluorescence of tetraphenylporphyrin (TPP) incorporated into the multilayers of n-decanol adsorbed on the external surface of zeolites at different temperatures were studied by the laser flash photolysis via monitoring the emission and diffuse-reflectance. In deoxygenated samples, the kinetics of diffusion-controlled bimolecular triplet-triplet annihilation (TTA) has been used to probe the multilayers. …”
    Get full text
    Article
  17. 97

    Enhanced LED light driven photocatalytic degradation of Cefdinir using bismuth titanate nanoparticles by Sara Ishaq, Ahmed H. Nadim, Joliana F. Farid, Sawsan M. Amer, Heba T. Elbalkiny

    Published 2025-07-01
    “…Bismuth titanate nanoparticles were synthesized and characterized using transmission electron microscopy (TEM), X-ray diffraction (XRD), and diffuse reflectance spectroscopy (DRS). Factors affecting the degradation protocol were optimized using a central composite design model, and the degradation efficiency was assessed using a validated RP-HPLC method. …”
    Get full text
    Article
  18. 98

    Photocatalytic Reduction of CO2 to Methane on Pt/TiO2 Nanosheet Porous Film by Li Qiu-ye, Zong Lan-lan, Li Chen, Cao Yu-hui, Wang Xiao-dong, Yang Jian-jun

    Published 2014-01-01
    “…The Pt/TiO2 nanosheet porous film was characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM), and ultraviolet-visible light diffuse reflectance spectra (UV-vis DRS). Moreover, the transient photocurrent-time curves showed that the Pt/TiO2 nanosheet porous film exhibited higher photocurrent, indicating that the higher separation efficiency of the photogenerated charge carriers was achieved.…”
    Get full text
    Article
  19. 99

    Photocatalytic degradation of antibiotic enrofloxacin under solar light using ZnO and Bi2MoO6 materials by Wei Qinzheng, Lam Sze-Mun, Li Haixiang, Sin Jin-Chung

    Published 2025-01-01
    “…The resulting materials underwent comprehensive characterization using techniques such as scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible diffuse reflectance spectroscopy (UV-vis DRS), and photoluminescence spectroscopy (PL) to investigate their physical, chemical, and optical properties. …”
    Get full text
    Article
  20. 100

    Tailored pc@zro₂@cellulose fiber composites as versatile materials for photocatalytic metal ion reduction and microbial deactivation by Reem. Mohammed, Shimaa M. Abdel-Moniem, Nabila S. Ammar, Mohamed A. El-Liethy, Hanan S. Ibrahim, Mohamed Eid M. Ali

    Published 2025-07-01
    “…The composite materials were characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), N2 adsorption/desorption isotherms, and diffuse reflectance spectroscopy (DRS). The results revealed successful integration of the PCs with the ZrO2-cellulose matrix, facilitating efficient charge transfer and enhanced photocatalytic performance. …”
    Get full text
    Article