Article
Chemistry, Multidisciplinary
Zhenzi Li, Decai Yang, Hongqi Chu, Liping Guo, Tao Chen, Yifan Mu, Xiangyi He, Xueyan Zhong, Baoxia Huang, Shiyu Zhang, Yue Gao, Yuxiu Wei, Shijie Wang, Wei Zhou
Summary: Interface engineering is an efficient strategy to improve photocatalytic performance. In this study, reduced graphene oxide/mesoporous titanium dioxide nanotube heterojunction assemblies (rGO/TiO2) were fabricated via a hydrothermal method. The heterojunction interface formed between rGO and TiO2 nanotubes acts as efficient charge transfer channels, which leads to enhanced photocatalytic performance. The rGO/TiO2 heterojunction assemblies exhibit extended photoresponse to visible light and a significantly higher photocatalytic hydrogen production rate compared to TiO2 nanotubes alone. This enhancement is attributed to effective charge transfer channels, spatial charge separation, and the electron acceptor properties of rGO, as well as the large surface area and sufficient surface active sites provided by the two-dimensional mesoporous nanosheets structure. This heterojunction assembly holds potential applications in energy fields.
Article
Chemistry, Multidisciplinary
Dengji Yu, Yunfang Zhang, Fang Wang, Jun Dai
Summary: By enhancing the fabrication methods of TiO2 nanotubes and increasing ZnO deposition, significant improvements in photoconversion efficiency and photocurrent response can be achieved, providing new insights for the development of efficient photoanode materials.
Article
Chemistry, Physical
Jingjing Wu, Jingxuan Hao, Wenyao Guo, Jie Chen, YuLin Min
Summary: The current research on the CO2RR process focuses on the selectivity of a single product and material selectivity. This study uses TiO2/TiO as a photocatalyst and finds the production of hydrogenation and CO products during the reaction. This research provides guidance for the construction of light-driven CO2 hydrogenation products in the future.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Chul-Jun Yoon, Sung-Hyun Lee, Yoo-Bin Kwon, Kyoungsoo Kim, Kun-Hong Lee, Seung Min Kim, Young-Kwan Kim
Summary: Incorporation of TiO2 nanoparticles onto carbon nanotube fibers enhances their thermal stability and structural integrity, resulting in sustainable mechanical and electrical properties as well as high photocatalytic activity under UV exposure. This demonstrates that the incorporation of TiO2 NPs is an efficient strategy to improve the long-term stability and applicability of CNTFs.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Yihai Wu, Deqin Meng, Qingbin Guo, Dengzheng Gao, Li Wang
Summary: In this study, mesoporous TiO2/g-C3N4 photocatalysts were prepared with enhanced photocatalytic efficiency, addressing the challenges in preparing g-C3N4 using urea thermal polymerisation.
Article
Green & Sustainable Science & Technology
Xuan-xuan Zhang, Ying-guan Xiao, Shun-sheng Cao, Zheng-liang Yin, Zhao-Qing Liu
Summary: A new confined ternary photocatalyst TiO2@Bi2O3@TiO2 was designed by embedding Bi2O3 into hierarchical hollow TiO2 spheres. This photocatalyst exhibited strong visible-light absorption and efficient charge separation, enabling the complete degradation of tetracycline under visible light. The introduction of confinement effect significantly improved the cyclic stability of the catalyst.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Multidisciplinary
W. Zhu, Z. Xia, B. Shi, C. Lu
Summary: In this study, Cs4PbBr6 nanocrystals were successfully synthesized and coated with titanium dioxide, resulting in the construction of Cs4PbBr6/CsPbBr3@TiO2 ternary heterojunction. The formation of CsPbBr3 interfacial phase enhanced the visible-light absorption capacity of the composite and promoted the effective separation and transfer of photoelectron-hole pairs. By controlling the water content, the CsPbBr3 interfacial phase levels in the Cs4PbBr6/CsPbBr3@TiO2 composite were regulated, which affected the photocatalytic performance of the material. The Cs4PbBr6/CsPbBr3@TiO2 composite exhibited the highest photocatalytic activity and good stability in a water system under visible-light irradiation.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Chemistry, Physical
Yunfei Wang, Muhammad Fiaz, Jina Kim, Nkenku Carl, Yu Kwon Kim
Summary: Composite materials based on g-C3N4 and TiO2 nanotubes were synthesized as environmentally friendly photocatalysts with suitable heterojunctions for enhanced photocatalytic hydrogen production. The contact formation between g-C3N4 and TiO2 improved photoactivity, with the highest rate observed at x=0.6 regardless of the pretreatment of g-C3N4. Modified g-C3N4-based composites showed higher photoactivities due to their larger surface area. The enhanced photoactivity was attributed to the Z-scheme interaction at the heterojunction, and the dominant type of interaction changed from type-II heterojunction to Z-scheme at x=0.1 due to the structural diversity at the g-C3N4/TiO2 interfaces.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Applied
Zhida Gao, Zhijie Li, Chenxi Zhao, Tongtong Li, Yongxin Lu, Yan-Yan Song
Summary: The research utilized a hydrothermal modification strategy to anchor CoNi bi-component nanosheets onto TiO2 nanotube arrays, serving as a nonprecious metal electrocatalyst with improved resistance to intermediate poisoning and enhanced electrocatalytic stability in direct methanol fuel cells.
Article
Nanoscience & Nanotechnology
Weichao Li, Liexing Zhou, Linkun Xie, Kunyong Kang, Juan Xu, Xijuan Chai
Summary: The study successfully fabricated a composite material consisting of g-C3N4 nanolayer/N, Gd, and Fe co-doped TiO2, and demonstrated that adjusting the amount of g-C3N4 nanosheets can enhance the photocatalytic performance of the composites.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Chemistry, Physical
Dan Liu, Ismail Nadia, Chaohe Fang, Kuan He, Binghui Ge, Hailong Chen, Zhuo Chen
Summary: This study demonstrates the photo-enhanced catalytic activity for the hydrogenation of nitrobenzene. Compared to the counterpart without light irradiation, the catalytic reaction rate significantly improves under simulated sunlight, achieving better catalytic performance. Further mechanism investigations reveal that light illumination promotes the activation of hydrogen and nitrobenzene molecules, resulting in high-efficiency hydrogenation.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Chemistry, Physical
Marcos Gonzalez-Tejero, Joyce G. Villachica-Llamosas, Alba Ruiz-Aguirre, Gerardo Colon
Summary: Cu/TiO2/SrTiO3 hybrid structures were synthesized by impregnation method from Cu/TiO2 and SrTiO3 systems. The composites effectively covered SrTiO3 with Cu/TiO2, leading to an outstanding improvement of photoactivity for hydrogen production from methanol photoreforming. The optimal 30wt% SrTiO3 heterojunction achieved a photoproduction of 81.7 mmol/g H2 after 6 hours, 1.7 times higher than bare Cu/TiO2.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Materials Science, Paper & Wood
Wenjun Li, Hui Zhang, Wendou Chen, Limeng Yang, Hailiang Wu, Ningtao Mao
Summary: This study demonstrated the recycling and efficient utilization of powdered photocatalysts by loading them on supporting materials. The construction of a g-C3N4-TiO2 heterojunction on cotton fibers improved photocatalytic performance, with the cotton increasing the energy band gap of the nanocomposites. The self-cleaning experiments showed the modified cotton fabrics could effectively remove organic contaminants multiple times.
Article
Environmental Sciences
Yu Liu, Lijun Liao, Liping Guo, Zhenzi Li, Xuepeng Wang, Decai Yang, Mingtao Wang, Shijie Wang, Wei Zhou
Summary: Developing photocatalytic technologies with high selectivity for pollutant removal is a significant challenge. In this study, a unique popcorn-stick-like nanocomposite was fabricated and exhibited distinguished photocatalytic activity for simultaneous removal of carbon particles and nitrogen dioxide.
ENVIRONMENTAL RESEARCH
(2024)
Article
Chemistry, Multidisciplinary
Maira Shabir, Nasir Shezad, Iqrash Shafiq, Ibrahim M. Maafa, Parveen Akhter, Kshaf Azam, Ashfaq Ahmed, See Hoon Lee, Young-Kwon Park, Murid Hussain
Summary: A visible-light active N,S-codoped TiO2 nanocomposite incorporated with carbon nanotubes (CNTs) was synthesized by a multicomponent heterojunction scheme, showing superior photocatalytic performance due to the synergistic effect of ternary components providing a high number of adsorption sites and facilitating effective separation of charge carriers. N,S-TiO2/CNTs exhibited around three times higher photocatalytic activity compared to binary composites and about four times higher than conventional TiO2. Furthermore, the nanocomposites were also investigated for their recyclability for five consecutive cycles.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Environmental Sciences
Zhen Jin, Zhiqiang Zhao, Lianfu Liang, Yaobin Zhang
Summary: The addition of Fe3O4 into anaerobic reactors treating sulfate-containing wastewater with azo dye AO7 has been shown to enhance system performance, increase the production of degradation intermediates, and enrich iron-reducing bacteria capable of degrading azo dye.
Article
Engineering, Environmental
Yang Li, Chunlei Dong, Yuan Li, Wenqi Nie, Mingwei Wang, Cheng Sun, Lianfu Liang, Zhiqiang Zhao, Yaobin Zhang
Summary: The study found that magnetite promotes the anaerobic degradation of aromatic compounds under low-concentration sulphate conditions, participating in the process of benzoate degradation coupled to sulphate reduction.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Ting-ting Zhu, Wen-xia Lai, Yao-Bin Zhang, Yi-wen Liu
Summary: The Feammox process plays a crucial role in the natural nitrogen cycle, but has been rarely investigated in the field of wastewater treatment. This study explored the potential of anaerobic ammonium removal coupled with organics to assess the Feammox process for conventional wastewater treatment. Results showed that the Fe2O3 group had the highest efficiency in ammonium removal, while organics significantly inhibited the Feammox process.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Jiajian Xing, Haiguang Zhang, Gaoliang Wei, Lei Du, Shuo Chen, Hongtao Yu, Xie Quan
Summary: By incorporating molybdenum sulfide (MoS2) nanosheets and applying external electrical assistance, both the 2D channel and charge density of reduced graphene oxide (rGO) membranes were regulated to enhance water flux and salt rejection. The resulting rGO/MoS2 membranes exhibited expanded nanochannels, resulting in significantly increased water permeance. In addition, the high capacitance and negative potential of the membranes contributed to improved rejection rates for NaCl and Na2SO4 ions. This study provides new insights for the design of membranes with high water flux and salt rejection efficiency.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Peike Cao, Xie Quan, Xiaowa Nie, Kun Zhao, Yanming Liu, Shuo Chen, Hongtao Yu, Jingguang G. G. Chen
Summary: The authors report a scalable cobalt single-site catalyst for hydrogen peroxide synthesis at industrial-relevant currents in acidic, neutral or alkaline electrolyte, providing a sustainable alternative to traditional anthraquinone technology.
NATURE COMMUNICATIONS
(2023)
Review
Chemistry, Multidisciplinary
Xinfei Fan, Gaoliang Wei, Xie Quan
Summary: Membrane separation is widely used in water and wastewater treatment due to its cost-effectiveness, ease of operation, and high efficiency. However, current membranes face challenges in balancing selectivity and permeability, as well as dealing with membrane fouling. Recent studies have focused on developing high-performance membranes based on carbon nanomaterials, such as carbon nanotubes and graphene, to improve water and wastewater treatment. These carbon nanomaterial-based membranes demonstrate enhanced permselectivity and fouling resistance under electrochemical assistance, thanks to their good electrical conductivity. This review summarizes the progress in the preparation, mechanisms, and applications of electroconductive nanocarbonaceous membranes for water purification and wastewater treatment, aiming to enhance the fundamental understanding of combining membrane separation and electrochemistry. The review covers methods for preparing electroconductive membranes, such as carbon nanotube membranes and graphene membranes, as well as the underlying mechanisms for the improved permselectivity, antifouling, and regeneration performance achieved through electrochemical processes. The review also discusses practical limitations of membrane/electrochemistry systems and proposes possible solutions.
ENVIRONMENTAL SCIENCE-NANO
(2023)
Article
Chemistry, Physical
Lanlan Liang, Peike Cao, Xin Qin, Shuai Wu, Haokun Bai, Shuo Chen, Hongtao Yu, Yan Su, Xie Quan
Summary: Developing efficient and interference-tolerant catalysts for practical use in catalytic ozonation process is challenging. In this study, a surface Vo-rich catalyst was prepared by doping Co into zinc ferrite spinel, showing efficient mineralization of recalcitrant organic pollutants. The removal of contaminants was mainly attributed to nonradical-based oxygen species, *O, rather than traditional hydroxyl radicals, •OH. The Vo-driven nonradical catalysis exhibited high resistance to coexisting ions and excellent performance in actual wastewater treatment, providing a novel strategy for efficient mineralization of pollutants in complicated water matrices.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Xueyang Zhao, Qin Geng, Fan Dong, Kun Zhao, Shuo Chen, Hongtao Yu, Xie Quan
Summary: Electrochemically reducing nitrate to ammonia is an efficient method to address nitrate pollution. However, controlling the selectivity and kinetics of ammonia production remains a challenge. In this study, a single-atom Cu catalyst was developed for selective and efficient nitrate reduction, achieving high Faradic efficiency and ammonia selectivity. DFT calculations revealed the underlying mechanism, demonstrating the superiority of the single-atom Cu catalyst over Cu nanoparticle catalyst. This research provides a strategy for designing electrocatalysts for efficient and selective ammonia production via nitrate reduction.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xin Qin, Peike Cao, Xie Quan, Kun Zhao, Shuo Chen, Hongtao Yu, Yan Su
Summary: In this study, a dual-atomic-site catalyst (CoFe DAC) was proposed to cooperatively catalyze middotOH electrogeneration. The CoFe DAC showed higher middotOH production rate compared to single-site catalysts, and it was more energy-efficient for coking wastewater treatment.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Gaoliang Wei, Lei Du, Haiguang Zhang, Jiajian Xing, Shuo Chen, Xie Quan
Summary: In this study, it was found that electrochemical treatment can expand the restacked regions of reduced graphene oxide (rGO) membranes, leading to the formation of ultrafast water transport nanochannels. The expansion is driven by hydrogen bond interactions between water molecules and electrochemically produced hydroxyl groups on the edges of rGO nanosheets. The treated rGO membranes exhibit a permeance 2 orders of magnitude higher than pristine rGO membranes and about 3 times higher than graphene oxide membranes. Additionally, the rGO membranes also show higher ionic/molecular rejection performance due to their smaller average pore size.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Hai-Guang Zhang, Xie Quan, Lei Du, Gao-Liang Wei, Shuo Chen, Hong-Tao Yu, Ying-Chao Dong
Summary: Researchers propose an electropolarization strategy using vertically aligned reduced graphene oxide (VARGO) membrane to regulate interfacial hydrogen-bond and electrostatic interactions, achieving high water permeation and ion rejection performance.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Engineering, Environmental
Qilin Yu, Haohao Mao, Zhiqiang Zhao, Xie Quan, Yaobin Zhang
Summary: As a major driver of global methane production, methanogens are exposed to an environment filled with dynamic electromagnetic waves, which may induce electromotive force (EMF) to potentially influence methanogen metabolism. This study found that exposure to a dynamic magnetic field increased biogas production through induced EMF. The methane emissions from sediments increased by 41.71% when exposed to a dynamic magnetic field with an intensity of 0.20 to 0.40 mT. The EMF accelerated the respiration of methanogens and bacteria, leading to enhanced microbial metabolism.
Article
Chemistry, Multidisciplinary
Muhammad Irfan Ahmad, Shuo Chen, Hongtao Yu, Xie Quan
Summary: This study demonstrates the successful production of H2O2 by introducing reduced graphene oxide (rGO) into SnO2, which enhanced light absorption and reduced the energy band gap. Among different concentrations of rGO, 0.5wt% rGO-SnO2 showed the highest H2O2 yield. The findings provide valuable guidance for designing efficient photocatalysts for H2O2 generation.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Engineering, Environmental
Chengyu Yuan, Yuxin Li, Lulu Qian, Jiajian Xing, Xu Wang, Haiguang Zhang, Lei Du, Gaoliang Wei, Shuo Chen, Xie Quan
Summary: This study presents a molten salt intercalation method for the fabrication of an Al3+-intercalated MXene membrane with good antiswelling ability. The intercalated membrane shows significant increase in the Al-O group and Al content, while in situ XRD tests confirm the stability of d-spacing with Al3+ intercalation. The membranes demonstrate excellent separation efficacy for organic dyes and antibiotics with rejection rates exceeding 90%.
ACS ES&T ENGINEERING
(2023)
Article
Engineering, Environmental
Yanping Shi, Tao Liu, Xie Quan, Shuo Chen, Hongtao Yu, Wuzhe Quan
Summary: A municipal WWTP upgraded its process to A2O-IFFAS by filling ZVI-modified biofilm carriers into anoxic bioreactors and clinoptilolite-modified biofilm carriers into aerobic bioreactors. The upgraded process achieved high nitrogen removal efficiency and met the discharge standard requirements.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Wiem Bouali, Muejgan Yaman, Nurgul Seferogu, Zeynel Seferogu
Summary: Novel chemosensors, including coumarin hydrazide, were synthesized and demonstrated the ability to detect cyanide ions through absorption and fluorescence turn-off response. The reaction mechanism between the sensors and the ions was determined through experimental and theoretical studies. The sensors exhibited high detection ability and effectiveness.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Parinaz Abdollahian, Hassan Heidari, Soheila Hassanzadeh, Mohammad Hasanzadeh
Summary: This study successfully synthesized various types of thiolated-graphene quantum dots (GQDs) and utilized them in a one-droplet microfluidic paper-based analytical device for the simultaneous multi-sensing of heavy metal ions. The GQDs were functionalized and stabilized on the surface of hydrophobic fiber-glass, enabling colorimetric chemosensing of ions including iron, copper, cobalt, mercury, chrome, manganese, and nickel. The results were confirmed using fluorescence spectrometry, and the platform showed potential for facile metal ion detection in human urine models and environmental fluids.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
S. L. Barrett, C. Meyer, E. Cwiklik, V Fieglein, M. Burns, J. Guerrero, W. J. Brittain
Summary: Laboratory illumination is strong enough to create a photostationary state (PSS) of amphiphilic azo-benzene compounds in water. The [cis]PSS/[trans]PSS ratios were observed to be 0.33-1.2 in D2O and 0.37-3.8 in dimethyl sulfoxide-d6. ortho-Fluoroazobenzene amphiphiles show higher cis-isomer concentration at equilibrium compared to non-fluorinated compounds due to differences in optical absorption profiles. The kinetics of isomerization were measured using UV-Vis spectroscopy and the ratio of trans-to-cis rates does not directly correlate with the observed PSS. The half-life for PSS formation is 40 minutes for fluorinated compounds and 80 minutes for non-fluorinated compounds.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Jalil Khodayari, Karim Zare, Omid Moradi, Mohammadreza Kalaee, Niyaz Mohammad Mahmoodi
Summary: In this study, an eco-friendly biocomposite (CMC/MIL/CuO) was synthesized and characterized, and its ability to decolorize Acid Blue 92 dye was investigated. The results showed that CMC/MIL/CuO can be used as a suitable photocatalyst for dye decolorization.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Bo Ma, Qian Xu, Huajun Yao, Yalin Chen, Yiyang Wang, Yunfei Yang, Hongfang Shen, Youjun Lu
Summary: This study designed an integrated structure of Cu2O@Au/Cu2O heterostructure particles, which achieved significantly enhanced photocatalytic performance by simultaneously considering the integrated structural characteristics and localized surface plasmon resonance (LSPR) effect. Experimental characterization and theoretical simulation confirmed the three-in-one synergy of the integrated heterostructure, including the LSPR effect of Au nanoparticles, the light scattering based on core-shell heterostructure, and the effective charge separation based on inter-embedded heterostructure. The concept of integrated heterostructure cooperated with LSPR effect provides a new strategy for designing future catalysts.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Robert G. H. Marks, Sarah P. Rockel, Klaus Kerpen, Holger Somnitz, Philipp R. Martin, Maik A. Jochmann, Torsten C. Schmidt
Summary: This study investigated the pH-dependent photolysis of phosphonates in aqueous solutions and analyzed the transformation products. The results showed that the photolysis rate of phosphonates was influenced by pH and light conditions. Furthermore, the carbon kinetic isotope effects varied for different types of phosphonates.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
T. M. Naren Vidaarth, S. Surendhiran, K. S. G. Jagan, S. Savitha, K. S. Balu, A. Karthik, B. Kalpana
Summary: In this study, magnesium oxide nanoparticles were synthesized using plant seed extracts, which exhibited excellent performance in removing dyes from textile water bodies. These nanoparticles also showed strong antibacterial and antioxidant properties.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Mikhail Yu. Ovchinnikov, Vyacheslav A. Antipin, Sergey L. Khursan
Summary: In this study, the recombination of separated ion-radical states (SIRS) in PAPh films was analyzed, and it was found that the contribution of X-SIRS recombination to total luminescence varies with different environments. It was also shown that the recombination of labile SIRS is independent of the nature of the atmosphere. The study theoretically substantiated that SIRS recombination can occur via the transfer of both positive and negative charges, and the efficiency of thermal activation of recombination processes depends on the ratio of radiant and conductive channels of energy transfer.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Sumaira Naeem, Tayyaba Mubashir, Mudassir Hussain Tahir, Jawayria Najeeb, Ahmed Z. Dewidar, Hosam O. El-ansary, Silas Lagat, Anthony Pembere
Summary: This study presents an alternative methodology using machine learning for the selection of novel organic molecules to develop high-performance organic solar cell devices.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
D. Thirumoolan, S. Ragupathy, S. Renukadevi, P. Rajkumar, Rajakumar S. Rai, R. M. Saravana Kumar, Imran Hasan, Mani Durai, Young-Ho Ahn
Summary: In this study, the photodegradation of brilliant green dye was studied in relation to the comparative photocatalytic activity of pure ZnO and Ni-doped ZnO/CSAC. The Ni-doped ZnO/CSAC showed a higher photocatalytic degradation rate under visible light irradiation, suggesting its potential as an effective wastewater treatment material.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Ajmal Khan, Zhidong Chang, Wenjun Li, Xiaohui Ma, Mei Dong, Liang Geng, Ghulam Yasin, Shuaib Khan, Hira Anwar
Summary: Due to its functional structure and tunable shape, 2D zeolitic imidazole framework (ZIFs) have gained significant interest in various fields. In this study, thin ZIF-8 sheets were prepared using a mixed solvent and then delaminated into single layers through physical sonication. These hexagonal sheets exhibited high stability and controlled morphology, and showed excellent performance in dye degradation compared to 3D ZIF-8 crystals.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Vitaly A. Podshibyakin, Evgenii N. Shepelenko, Leonid D. Popov, Tatyana M. Valova, Anton O. Ayt, Lyudmila G. Kuzmina, Anton V. Lisovin, Oleg N. Burov, Mikhail E. Kletskii, Alexander D. Dubonosov, Vladimir A. Bren
Summary: Bifunctional hybrids containing photochromic indolyl(thienyl) diarylethenes and an ionochromic rhodamine moiety connected by a dimethylene spacer were synthesized. These hybrids exhibit absorption at 450-455 nm and fluorescence at 560 nm in toluene. UV light triggers ring-closed non-fluorescent diarylethene formation, which can be reversed under visible light or in the dark. In the presence of H+ cation, a naked eye effect is observed with the opening of the rhodamine-spirolactam ring and a pink-crimson coloration at 561 nm accompanied by intense long-wavelength emission at 586 nm. This process is reversible by exposure to triethylamine, as confirmed by NMR experiments. The light-induced isomerizations and proton-induced transformations were explained using computational methods. Reversible switching of fluorescent properties can be achieved by light irradiation and proton.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Majid Sharifi-Rad, Hazem S. Elshafie, Pawel Pohl
Summary: The study investigated the synthesis of silver nanoparticles using Lallemantia royleana leaf extract, characterized their physico-chemical properties, and evaluated their biopharmaceutical and catalytic applications. The synthesized nanoparticles showed good stability and exhibited higher antioxidant, antimicrobial, anti-inflammatory, anti-arthritic, and cytotoxic activities compared to the leaf extract. These results provide a promising green synthesis route for silver nanoparticles with potential biomedical and catalytic applications.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Meera Moydeen Abdul Hameed, Badr M. Thamer
Summary: Security encoding using photochromism is an effective method for creating authentication substrates. A unique photochromic ink has been developed that emits light continuously under UV rays and darkness. The ink is produced by dispersing lanthanidedoped aluminate nanoparticles in a polymer binder. The resulting composite ink can be used to create transparent films on paper, and the stamped patterns become visible under UV rays, changing from colorless to green.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Monika Lamoria, Rita Kakkar, Marilyn Daisy Milton
Summary: Four novel water-soluble benzimidazolium and bis-benzimidazolium salts with a fluorophore-spacer-receptor design were synthesized and demonstrated to selectively detect Fe3+ ions with large Stokes shifts. The binding mechanism and detection performance were investigated through theoretical and experimental studies.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
