Article
Chemistry, Multidisciplinary
Meijiang Liu, Huifang Liu, Ning Li, Chaofeng Zhang, Jian Zhang, Feng Wang
Summary: This study reveals a synergistic effect of photogenerated holes and superoxide radicals for the selective oxidation of glycerol to formic acid over a TiO2 catalyst. By controlling the oxygen and water contents, surface active species can be controlled to solve the problem of formic acid peroxidation.
Article
Chemistry, Multidisciplinary
Hongsen Wang, Hector D. Abruna
Summary: In this study, the OH stretching band of OH adspecies on Pt, Ru, and Pt/Ru electrodes was identified for the first time using surface-enhanced infrared absorption spectroscopy (SEIRAS) in a flow cell through potential modulation and CO displacement. The results showed that Ru had a relatively constant OH coverage at potentials between 0.1 and 0.8 V, while Pt had a maximum OH coverage at 0.6 V in 0.1 M HClO4 and 0.7 V in 0.1 M KOH. CO oxidation kinetics on Ru were found to be sluggish, but adsorbed OH appeared on Ru at very low potentials. Binary Pt/Ru electrodes promoted CO oxidation through a synergistic effect where Ru promoted OH adsorption and Pt catalyzed the reaction between the CO and OH adspecies. Water coadsorbed with CO at Ru sites of Pt/Ru also played an important role. These new spectroscopic results on OH adspecies could advance the understanding of the mechanism of fuel cell related electrocatalysis.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Engineering, Chemical
Jinying Du, Chuang Wang, Zhiwei Zhao, Fuyi Cui, Qin Ou, Jie Liu
Summary: Vacuum UV radiation can generate hydroxyl radicals and H2O2 through the homolysis and ionization of water. Sufficient dissolved oxygen promotes the production and formation rate of H2O2, while UV254 radiation induces the decomposing of H2O2. The study also highlights the unfavorable effects of alkaline conditions and certain anions on H2O2 production.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Wen Wang, Tian Qin, Haiyang Wang, Zhiyong Yang, Zhenguo Chi, Xie Zhou
Summary: A new type-I photosensitizer that can simultaneously generate multiple type-I reactive oxygen species (ROS) under hypoxia condition of tumors is reported. In vitro and in vivo experiments demonstrate its excellent photodynamic therapy effects on tumor cells. The mechanism of ROS generation is revealed through experiments in aqueous and in vitro conditions.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Haiyang Wang, Tian Qin, Wen Wang, Xie Zhou, Faxu Lin, Guodong Liang, Zhiyong Yang, Zhenguo Chi, Ben Zhong Tang
Summary: In this study, new selenium-containing type-I photosensitizers Se6 and Se5 with benzoselenadiazole acceptor were designed and showed aggregation-induced emission characteristic. Se6 exhibited a smaller energy gap (Delta E-ST) of 0.03 eV and improved ROS efficiency, generating both long-lived superoxide anion (O-2(center dot-)) and short-lived hydroxyl ((OH)-O-center dot) upon irradiation. Simultaneous processes to produce (OH)-O-center dot were revealed, including disproportionation of O-2(center dot-) and reaction between excited PS and water. Se6 demonstrated superior in-vitro PDT performance to commercial chlorin e6 (Ce6) under normoxia or hypoxia, and a significantly higher tumor growth inhibition rate of 99% was observed in the in-vivo PDT performance of Se6. These findings provide new insights for both molecular design and mechanism study of type-I photosensitizers.
Article
Environmental Sciences
Menglan Gao, Zhibin Jiang, Xiaobin Liao, Xingji Bai, Huan Qi, Jing Zou, Wei Cao
Summary: This study found that bromide ions (Br-) promoted the formation of carcinogenic nitroso-dimethylamine (NDMA) during ozonation of unsymmetrical dimethylhydrazine (UDMH). The formation rate constant of NDMA with Br was over 7 times higher than without Br. Additionally, increasing bromide and ozone dosages facilitated NDMA formation, while different effects were observed with the addition of bicarbonate (HCO3-) and sulfate (SO42-).
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Physical
Xinyang Li, Wenjun Li, Shaonan Gu, Xintong Liu, Hongda Li, Chaojun Ren, Xiaohui Ma, Hualei Zhou
Summary: Yb-doped Bi2WO6 nanomaterials were synthesized successfully and showed higher photocatalytic activity compared to pristine Bi2WO6, attributed to the introduction of more oxygen vacancies and superoxide anion active groups. Introducing oxygen vacancies to enhance photocatalytic performance is an effective strategy for developing visible light photocatalysts.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Environmental Sciences
Xiaobin Liao, Linlu Shen, Zhibin Jiang, Menglan Gao, Yu Qiu, Huan Qi, Chao Chen
Summary: This study revealed that metformin can directly form NDMA during ozonation, with the addition of ·OH scavenger enhancing its formation significantly. The impacts of bromide and HCO3- on NDMA formation by O3 and ·OH were different, the increase in pH promoted NDMA production.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Chemistry, Multidisciplinary
Lei Yang, Hong Huang, Ting Wang, Danling Zhou, Qing Chen, Dan Li, Shuzi Chen, Ping Lin
Summary: The endoplasmic reticulum, as the largest cellular organelle, plays a crucial role in protein synthesis, folding, transportation, and maintaining Ca2+ homeostasis. imbalances in its environment can lead to endoplasmic reticulum stress and metabolic diseases. In this study, we developed endoplasmic reticulum-targeting Se-doped carbon nanodots, which were shown to effectively eliminate reactive oxygen species and protect cells from oxidative damage. The carbon nanodots also demonstrated anti-inflammatory effects in mice.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Engineering, Environmental
Qiang Bi, Sisi Jiang, Changfeng Hu, Li Zhang, Yilin Zhao, Bo Yang, Guoping Li, Juanqin Xue
Summary: In this study, a N/Co-co-doped graphite gas diffusion electrode (Co-NG GDE) has been prepared and applied in the E-peroxone system. Surprisingly, Co-NG GDE exhibits the highest degradation efficiency for phenol and oxalate, despite its poor performance in the ORR to H2O2. The abundance of O2(center dot-) produced by Co-NG GDE, due to its higher pyridine-N content, can replace H2O2 to form super-active center dot OH.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Biochemistry & Molecular Biology
Sandeep Negi, Deepti Chopra, Saumya Shukla, Apeksha Vikram, Sunil Kumar Patel, Lakshmi Bala, Ashish Dwivedi, Ratan Singh Ray
Summary: Tattooing is a popular fashion trend worldwide, but it poses risks of skin allergies and diseases. Benzo[ghi]perylene (BP) is a significant component of tattoo ink and absorbs ultraviolet radiation. A thorough safety study of BP exposed to UVR and sunlight is crucial to understand its hazardous impact on the skin.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
(2023)
Article
Chemistry, Physical
Yi Zhao, Yang Liu, Yuying Wang, Shulan Li, Yi Liu, Zhong Lin Wang, Peng Jiang
Summary: Solid-liquid interfaces are widely present in nature and have various applications. Electron transfer at the interface has been discovered, and a two-step theory for the formation of solid-liquid electric double layer (EDL) has been proposed. Hydroxyl radical (.OH) is generated at the interface without external interference, and its concentration increases with pH, indicating that it is generated from hydroxide ions (OH-) through electron transfer during contact electrification. The generation of reactive oxygen species (.OH and .O2-) at the interface has potential applications in pollutant degradation.
Article
Chemistry, Physical
Xinyang Li, Wenjun Li, Xintong Liu, Liang Geng, Hongxia Fan, Ajmal Khan, Xiaohui Ma, Mei Dong, Hong Qiu
Summary: By triple-doping with Yb/Er/Pr, the yield of superoxide anions and hydroxyl radicals can be concurrently boosted, resulting in enhanced photocatalytic activity. This study demonstrates a simple and effective method to enhance the photocatalytic performance and identifies the enhancement mechanism.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Environmental
Kefeng Shang, Rino Morent, Ning Wang, Yongxin Wang, Bangfa Peng, Nan Jiang, Na Lu, Jie Li
Summary: The study shows that persulfate can enhance the degradation of sulfamethoxazole in a water falling film dielectric barrier discharge plasma reactor, with PMS performing better than PDS. Increasing the applied voltage, solution pH, and PMS/PDS concentration promotes SMX degradation. The reactive species generated from the activation of PMS/PDS by discharge plasma play a key role in SMX degradation, with center dot OH and SO4 center dot- being particularly important.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Tingting Cheng, Huajing Gao, Xiaofeng Sun, Tao Xian, Shifa Wang, Zao Yi, Guorong Liu, Xiangxian Wang, Hua Yang
Summary: By immobilizing AMO particles onto rod-like BTO hierarchical architectures, a Z-scheme heterojunction photocatalyst was designed, facilitating efficient separation of photoexcited electron-hole pairs and demonstrating superior photodegradation performance compared to bare AMO and BTO.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Mallikarjuna N. Nadagouda, George Hoag, John Collins, Rajender S. Varma
CRYSTAL GROWTH & DESIGN
(2009)
Article
Chemistry, Multidisciplinary
Eric C. Njagi, Hui Huang, Lisa Stafford, Homer Genuino, Hugo M. Galindo, John B. Collins, George E. Hoag, Steven L. Suib
Article
Biochemistry & Molecular Biology
Homer C. Genuino, Dayton T. Horvath, Cecil K. King'ondu, George E. Hoag, John B. Collins, Steven L. Suib
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
(2012)
Article
Environmental Sciences
Wei Hong Wang, George E. Hoag, John B. Collins, Ravi Naidu
WATER AIR AND SOIL POLLUTION
(2013)
Article
Limnology
Farhad Nadim, Amvrossios C. Bagtzoglou, George E. Hoag, Fred L. Ogden, Glenn S. Warner, David M. Soballe
LAKE AND RESERVOIR MANAGEMENT
(2007)
Article
Environmental Sciences
AM Barbash, GE Hoag, F Nadim
WATER AIR AND SOIL POLLUTION
(2006)
Article
Environmental Sciences
KC Huang, ZQ Zhao, GE Hoag, A Dahmani, PA Block
Article
Engineering, Environmental
KC Huang, GE Hoag, P Chheda, BA Woody, GM Dobbs
ADVANCES IN ENVIRONMENTAL RESEARCH
(2002)
Article
Environmental Sciences
KC Huang, RA Couttenye, GE Hoag
Article
Environmental Sciences
SL Liu, F Nadim, C Perkins, RJ Carley, GE Hoag, YH Lin, LT Chen
Article
Environmental Sciences
KC Huang, GE Hoag, P Chheda, BA Woody, GM Dobbs
Article
Environmental Sciences
F Nadim, C Perkins, SL Liu, RJ Carley, GE Hoag
Article
Engineering, Environmental
G Chen, GE Hoag, P Chedda, F Nadim, BA Woody, GM Dobbs
JOURNAL OF HAZARDOUS MATERIALS
(2001)
Article
Engineering, Environmental
KC Huang, GE Hoag, P Chheda, BA Woody, GM Dobbs
JOURNAL OF HAZARDOUS MATERIALS
(2001)
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)