A Nitrogen-Rich Covalent Triazine Framework as a Photocatalyst for Hydrogen Production by Ruizhi Gong, Liuliu Yang, Shuo Qiu, Wan-Ting Chen, Qing Wang, Jiazhuo Xie, Geoffrey I. N. Waterhouse, Jing Xu

“…CTF-CN possessed strong absorption at visible wavelengths, with UV-vis measurements suggesting a band gap energy in the range 2.7-2.9 eV. A 5 wt.% Pt/CTF-CN was found to be a promising photocatalyst for hydrogen production, affording a rate of 487.6 μmol g-1 h-1 in a H2O/TEOA/CH3OH solution under visible light. …”
Get full text

Dynamic Hydrogen Production from Methanol/Water Photo-Splitting Using Core@Shell-Structured CuS@TiO2 Catalyst Wrapped by High Concentrated TiO2 Particles by Younghwan Im, Sora Kang, Kang Min Kim, Taeil Ju, Gi Bo Han, No-Kuk Park, Tae Jin Lee, Misook Kang

“…The synthesized core@shell-structured CuS@TiO2 particles absorbed a long wavelength (a short band gap) above 700 nm compared to that pure TiO2, which at approximately 300 nm, leading to easier electronic transitions, even at low energy. …”
Get full text

Optimization of photocatalytic degradation of Eriochrome Black T from aqueous solution using TiO2-biochar composite by Mohammednur Abdu, Solomon Tibebu, Saeideh Babaee, Abebe Worku, Titus A.M. Msagati, Jemal Fito Nure

“…The synthesis resulted in an anatase phase crystal structure, a reduced band gap of 2.69 eV, and a significant surface area increase from 38 m²/g to 78 m²/g. …”
Get full text

Antibacterial and photocatalytic activities of biosynthesized zinc oxide nanoparticle using novel plant P. macrosolen L. leaf extract by Abel Saka Gungure, Leta Tesfaye Jule, N. Nagaprasad, Krishnaraj Ramaswamy, Shanmugam Ramaswamy

“…The FTIR spectrum also revealed broad and strong peaks corresponding to –OH groups, confirming the high concentration of phenolic acids present in the extract. The energy band gap of the biosynthesized ZnO Nanoparticles, calculated using the Tauc relation, was found to be 3.0 eV, indicating the presence of a blue shift. …”
Get full text

Electrocatalytic detection of Acetaminophen by sodium ferrite by Saima Perveen, Jameel Ahmed Baig, Mohammad Nur-e-Alam, Mohsin Kazi, Shahabuddin Memon, Tasneem Gul Kazi, Khalil Akhtar, Sajjad Hussain

“…The Na2Fe4O7-NPs were characterized by advanced analytical techniques such as x-ray diffraction (XRD), fourier transform infrared (FTIR), UV–visible, atomic force microscopy (AFM), zeta potential, zeta sizer, energy dispersive x-ray (EDX) and field emission scanning electron microscopy (FESEM) which displayed that the Na2Fe4O7-NPs possess hexagonal structure, a narrow band gap (1.475 eV), corresponding to their excellent electronic capability, nanosize of particles, rough surface and highly stable nature for electrochemical analysis. …”
Get full text

New Approach of the Oxidant Peroxo Method (OPM) Route to Obtain Ti(OH)4 Nanoparticles with High Photocatalytic Activity under Visible Radiation by André E. Nogueira, Lucas S. Ribeiro, Luiz F. Gorup, Gelson T. S. T. Silva, Fernando F. B. Silva, Caue Ribeiro, Emerson R. Camargo

“…The highest photocatalytic activity can be attributed to the strong visible light absorption, due to the narrow band gap, and the effective separation of photogenerated electron-hole pairs caused by the peroxo groups on the Ti(OH)4 surface.…”
Get full text

Harnessing defects in Ag/CeO2 for enhanced photocatalytic degradation of antibiotic in water: Structural characteristics, in-depth insights on mechanism, degradation pathway by Ajit Kumar Dhanka, Emerson C. Kohlrausch, Raghabendra Samantray, Vinod Kumar, Balaram Pani, Nityananda Agasti

“…Notably, the addition of Ag to CeO2 reduces the band gap energy to 2.90 eV, accompanied by an increase in Ce3+ content which is correlated with an increase in oxygen vacancies. …”
Get full text

Wide-Gap p-μc-Si1-xOx:H Films and Their Application to Amorphous Silicon Solar Cells by Taweewat Krajangsang, Sorapong Inthisang, Aswin Hongsingthong, Amornrat Limmanee, Jaran Sritharathikhun, Kobsak Sriprapha

“…The properties of p-μc-Si1-xOx:H films were characterized by conductivity, Raman scattering spectroscopy, and spectroscopic ellipsometry. The wide optical band gap p-μc-Si1-xOx:H films were optimized by CO2/SiH4 ratio and H2/SiH4 dilution. …”
Get full text

Site-specific substitution in atomically precise carboranethiol-protected nanoclusters and concomitant changes in electronic properties by Vivek Yadav, Arijit Jana, Swetashree Acharya, Sami Malola, Harshita Nagar, Ankit Sharma, Amoghavarsha Ramachandra Kini, Sudhadevi Antharjanam, Jan Machacek, Kumaran Nair Valsala Devi Adarsh, Tomas Base, Hannu Häkkinen, Thalappil Pradeep

“…We show that Au preferentially occupies the core, while Cu localizes in the tetrahedral shell, influencing stability and structural diversity of the clusters. The band gap expands systematically (2.09 eV for Ag17 to 2.28 eV for AuAg12Cu4), altering optical absorption and emission. …”
Get full text

Solanum tuberosum Leaf Extract Templated Synthesis of Co3O4 Nanoparticles for Electrochemical Sensor and Antibacterial Applications by Eneyew Tilahun Bekele, H. C. Ananda Murthy, Dhanalakshmi Muniswamy, Yeshaneh Adimasu Lemenh, Minale Shegaw Shume, Gezahegn Tadesse Ayanie, Avvaru Praveen Kumar, C. R. Ravikumar, R. Balachandran, Arpita Roy

“…SEM-EDX and TEM analyses suggest that the green-synthesized Co3O4 NPs are spherical in shape without the presence of impurities. The band gap Eg values of the 1 : 2, 1 : 1, and 2 : 1 volume ratios of Co3O4 NPs were found to be 1.83, 1.77, and 2.19 eV, respectively. …”
Get full text

Synthesis and Characterization of Copper Ferrite Nanoparticles for Efficient Photocatalytic Degradation of Organic Dyes by Julia Mazurenko, A. K. Sijo, Larysa Kaykan, Volodymyr Kotsyubynsky, Łukasz Gondek, Antoni Zywczak, Mateusz Marzec, Oleksii Vyshnevskyi

“…Optical and photocatalytic properties were investigated using spectrophotometry, revealing an optical band gap of 1.85 eV, which demonstrates potential for photocatalytic activity under visible light. …”
Get full text

Green synthesis and enhanced photocatalytic performance of Co-Doped CuO nanoparticles for efficient degradation of synthetic dyes and water splitting by Daniel Masekela, Lovedonia K. Kganyakgo, Kwena D. Modibane, Tunde L. Yusuf, Sheriff A. Balogun, Wilson M. Seleka, Edwin Makhado

“…The optical and electrochemical properties, including the energy band gap, transient photocurrent response (TPR), and charge-transfer resistance (Rct), were assessed using chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS), respectively. …”
Get full text

Elevating photovoltaic efficiency: Cobalt doping approaches with sustainable transition metal cations in lead halide perovskite solar cells by M.I. Khan, Saddam Hussain, M. Atif, J.E. Leal-Perez, B.A. García-Grajeda, J.M. Mendivil-Escalante

“…Further assessment of the optical properties by UV–Vis analysis reveals that the incorporation of 3 % Co2+ doping into MAPbI2Br reduced the band gap energy to 1.84 eV. All in all, in terms of important solar cell performance metrics, the introduction of 3 % Co2+ doping to MAPbI2Br has led to significant improvements. …”
Get full text

Water remediation and antibacterial characteristics of CdO, graphene oxide and reduced graphene oxide blended CdO nanoparticles – A comparative study by N. Manjula, A.R. Balu, N. Arunkumar, S. Chitra Devi, M. Sriramraj, V. Rajamani, A. Vinith

“…Blending GO reduced CO's band gap from 2.44 to 2.41 and rGO lowered it to 2.39 ​eV. …”
Get full text

Fabrication and Performance Analysis of Novel HTV Silicon Rubber Nanocomposites for High Voltage Insulation in Outdoor Environment by Aqeel Ur Rehman, Muhammad Salman Khan, Abraiz Khattak, Yasin Khan, Khalid Hamad Alkhalid

“…The most considerable band gap energy was found in Silicone Rubber with 1% silica nano-composite filling, followed by 3% and 7% nanocomposites with an improvement of 71% and 76%, respectively. 1% silica nanocomposites have the highest DC resistance value among all nanocomposites. …”
Get full text

Numerical simulation of an HTL-free carbon-based perovskite solar cell with graphitic carbon nitride doped zinc oxide as electron transport layers by Joseph Kariuki, Nicholas Rono, Chinedu Christian Ahia, Eric Kibagendi Osoro, Edson L. Meyer

“…The electron transport layer (ETL) was a blend with ZnO and graphitic carbon nitride, and named GT1, GT3 and GT5 materials in different ratios. The band gap values of the proposed ETL were 3.06, 3.06, 3.10, and 2.97 eV for pure ZnO, GT1, GT3 and GT5 respectively. …”
Get full text

Biotemplated Synthesis of Titanium Oxide Nanoparticles in the Presence of Root Extract of Kniphofia schemperi and Its Application for Dye Sensitized Solar Cells by Eneyew Tilahun Bekele, Enyew Amare Zereffa, Noto Susanto Gultom, Dong-Hau Kuo, Bedasa Abdisa Gonfa, Fedlu Kedir Sabir

“…The analysis result revealed that the synthesized TiO2 NPs were thermally stable above 500°C and have spherical morphology, with the average crystalline size of 11.7, 8.3, and 8.6 nm, and band gap energy of 3.35 eV, 3.33 eV, and 3.36 eV, respectively, for the TiO2 NPs prepared at the volume ratios of 2 : 3, 1 : 1, and 3 : 2. …”
Get full text

Dual-Functional Fe₃O₄@SiO₂/Ag/AgCl Nanocomposites as Photocatalyst for Degrading Methylene Blue Dye Under Natural Light Irradiation by Kha Minh Nguyen, Nga Ngan Pham, Hien Thi-Thu Tran, Son Truong Nguyen

“…The magnetic properties of FSAC remained those of the core Fe3O4 nanoparticles, with a band gap energy of approximately 1.8 eV. Results showed that the photocatalytic decomposition of MB under 25 W natural light was significantly enhanced in the presence of the FSAC nanocomposites, compared to Fe3O4, Fe3O4@SiO2, and Fe3O4@SiO2/Ag nanoparticles. …”
Get full text

Synthesis and structural characterization of s-triazine derivatives and their photophysical properties by Hessa H. Al-Rasheed, Sizwe J. Zamisa, Ihab Shawish, Assem Barakat, Ayman El-Faham, Beatriz G. de la Torre, Fernando Albericio, Anamika Sharma

“…The dihedral angles showed slight deviation, and this was related to the natural atomic charges present on the atoms in the molecule. Band gap was found to be lowest in case of 2 (3.95 eV) and highest in case of 1 (4.57 eV) depicting its highest and lowest reactivity, respectively. …”
Get full text

Sol–gel synthesis of silicon oxide (SiO2) nanoparticles: exploring gas sensing and photocatalytic applications by Laxmi D. Sonawane, Abhinay S. Mandawade, Anil B. Gite, Sarika D. Shinde, Ganesh E. Patil, Latesh K. Nikam, Vishal H. Goswami, Ramesh B. Bhise, Pradip B. Sarawade, Mahendra S. Shinde

“…Ultraviolet–visible (UV–Vis) spectroscopy analysis indicated a band gap energy of 5 eV. X-ray diffraction (XRD) analysis displayed a broad peak, confirming the amorphous nature of the material. …”
Get full text