Article
Engineering, Environmental
Xinmiao Qi, Haoxuan Cai, Xuefeng Zhang, Jiayu Ouyang, Danqing Lu, Xin Guo, Shanshan Jia
Summary: In this study, a novel photocatalytic adsorbent, QNIW, was synthesized to remove Cr(VI) pollution in water resources. QNIW exhibited long-term stability, easy separability, and remarkable adsorption and photocatalytic performance. The study provides valuable insights into the development of high-efficiency, enduringly stable, and easily separable photocatalytic adsorbents.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Min Li, Lina Ma, Lan Luo, Yuguang Liu, Ming Xu, Hua Zhou, Ye Wang, Zhenhua Li, Xianggui Kong, Haohong Duan
Summary: In this study, a quantum-sized SnO2 on 2D graphitic carbon nitride was synthesized as a heterostructured catalyst for efficient photocatalytic styrene epoxidation at room temperature using O-2 as an oxidant. Photoelectrochemical analysis showed efficient electron transfer and enhanced charge carriers' separation and transfer processes. Furthermore, the photocatalytic styrene epoxidation was coupled with epoxide ring-opening amination, achieving the synthesis of valuable chemicals in a cascade reaction fashion.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2022)
Article
Environmental Sciences
Runqi Li, Xingyu Hu, Yutang Yu, Weicheng Xu, Dongdong Chen, Ximiao Zhu, Yiming Tang, Lang Yao, Jingjun Qin, Jianzhang Fang, Zhang Liu, Zhanqiang Fang
Summary: In this study, discrete quantum dots of crystallized anatase TiO2 were successfully anchored on carbon nanosheets containing amorphous SiO2 via templated self-assembly and pyrolysis routes. The novel hybrid photocatalyst TiO2/C/SiO2 exhibited well-coupled adsorption and visible light photocatalysis on chlorpromazine (CPZ). O-2(-) free radicals were identified as the main reactive species for CPZ degradation, and the enhanced performance of the photocatalyst could be attributed to increased adsorption and high exposure of the TiO2 QDs surface.
Article
Engineering, Environmental
Xingyu Hu, Yutang Yu, Dongdong Chen, Weicheng Xu, Jianzhang Fang, Zhang Liu, Runqi Li, Lang Yao, Jingjun Qin, Zhanqiang Fang
Summary: A facile two-step approach was developed for the fabrication of ternary heterojunctions of anatase/rutile quantum dots/g-C3N4 with well-coupled adsorption and photocatalytic activity. The composite structure exhibited enhanced removal efficiency of oxytetracycline compared to g-C3N4 and TiO2 due to optimized photogenerated charge separation and transfer, as well as the synergy between adsorption and photocatalysis. The study also demonstrated the reduced toxicity of intermediate solutions after visible-light irradiation, highlighting the potential of the composite as an eco-friendly photocatalyst for practical applications.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Ximin Hu, Wenyuan Han, Manqi Zhang, Degang Li, Hongqi Sun
Summary: Carbon quantum dots (CQDs) were used to modify TiO2 and enhance its photocatalytic efficiency. Different amounts of CQDs modified TiO2 (CQDs-x/TiO2) were synthesized by a facile and environmental friendly hydrothermal method. The anchoring of CQDs increased the specific surface area of CQDs-x/TiO2, promoting the adsorption of organic pollutants and enhancing the rate of photocatalytic oxidation. CQDs-20/TiO2 showed the highest pollutant removal efficiency under visible light irradiation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Yanyan Zhao, Hongxia Guo, Jie Liu, Qiong Xia, Jifang Liu, Xuhua Liang, Enzhou Liu, Jun Fan
Summary: In this study, carbon quantum dots (CQDs) modified 3D-flower like BiOX photocatalyst was successfully prepared and its crystal structure, optical properties, and photocatalytic activity were investigated. The CQDs/BiOX composite showed enhanced photocatalytic activity and had excellent light harvesting and electron transfer ability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Environmental
Xuefeng Zhang, Jiayu Ouyang, Xinmiao Qi, Ze Li, Qiang Ma, Xin Guo, Shanshan Jia
Summary: A photocatalytic adsorbent, CCCZ, was synthesized for effective removal of hexavalent chromium contamination. CCCZ exhibited exceptional adsorption capacity for Cr(VI), surpassing that of original chitosan gel bead by a factor of 3.4. Additionally, CCCZ showed efficient regeneration capacity and long-term stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
F. F. H. Aragon, L. Villegas-Lelovsky, J. I. Castillo-Llanos, C. M. Soncco, J. L. Solis, G. H. Peralta-Alarcon, D. G. Pacheco-Salazar, P. C. Morais
Summary: In this study, Cu-doped SnO2 nanocrystals were successfully synthesized and their structural, morphological, vibrational, and antibacterial properties were carefully studied. The results show that nanoparticles were fabricated near their exciton Bohr diameter at lower copper doping levels, but a secondary CuO phase was observed at higher copper doping levels. The redshift of the primary SnO2 vibrational mode was successfully described using the phonon-confinement model. The nanoparticles exhibited inhibitory effects on the growth of various bacteria through diffusion.
Article
Chemistry, Multidisciplinary
Yonghong Song, Yueqiang Zhu, Kun Jiang, Xingyu Liu, Liang Dong, Dongdong Li, Sheng Chen, Hanye Xing, Xu Yan, Yang Lu, Xianzhu Yang, Junxia Wang, Yunjun Xu
Summary: Multifunctional magnet-fluorescent nanocomposites have wide applications in biomedical field. In this study, highly ferrimagnetic magnetic nanoparticles and ZnS/InP quantum dots were encapsulated in an amphiphilic block copolymer to obtain ferrimagnetic fluorescent micelles (FMFM) with uniform diameter and long-term stability. The FMFM showed excellent magnetic heating effect and magnetic resonance imaging capability, achieving improved magnetic hyperthermia therapy efficacy both in vitro and in vivo.
Article
Chemistry, Physical
Junqi Hu, Mengmeng Yang, Xi Ke, Shuhui Yang, Kunqiang Wang, Haowei Huang, Weizhe Wang, Dongxiang Luo, Zhaoqiang Zheng, Le Huang, Peng Xiao, Chen Tu, Yonggang Min, Nengjie Huo, Menglong Zhang
Summary: In this study, a mixed dimensional material containing cubic 0D CsPbBr3 perovskite quantum dots and cubic 2D-PbS was prepared for CO2 reduction to fuels. The combination of 0D and 2D materials resulted in improved photocurrent and outstanding selectivity and activity in reducing CO2 to CO and CH4. The synthesized PQDs on 2D-PbS exhibited a reduced size compared to those synthesized in solvent, leading to wider bandgap and enhanced potential for photocatalytic reactions.
JOURNAL OF POWER SOURCES
(2021)
Article
Biochemistry & Molecular Biology
Lingyun Hao, Yuanyuan Yu, Zhanming Liang, Hewei Hou, Xi Liu, Changzhou Chen, Douyong Min
Summary: In this study, nitrogen-doped carbon quantum dots (NCQDs) with different properties were prepared by using kraft lignin as the raw material and EDA as a nitrogen dopant. The amount of EDA added affected the carbonization reaction and surface state of NCQDs. The results showed that the surface defects of NCQDs increased, and the fluorescence intensity and stability improved. NCQDs also exhibited high photo-catalytic activity in degrading methylene blue under simulated sunlight irradiation.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Materials Science, Multidisciplinary
Yuwei Chen, Yongfeng Jiang, Bingyan Chen, Fanglong Ye, Huaqiang Duan, Haoyu Cui
Summary: The N-doped carbon quantum dots modified SnO2 nanocomposites were synthesized by hydrothermal method, and the photocatalytic performance of resulting SnO2/NCQDs nanoparticles was investigated. The improvement in photocatalytic activity of SnO2/NCQDs composites can be attributed to the introduction of NCQDs, leading to increased visible light absorption spectrum and enhanced separation efficiency of electrons and holes.
Article
Chemistry, Multidisciplinary
Jiabin Cui, Somnath Koley, Yossef E. Panfil, Adar Levi, Nir Waiskopf, Sergei Remennik, Meirav Oded, Uri Banin
Summary: By synthesizing the smallest bow-tie nanoantenna and verifying its functionality using single-particle spectroscopy, as well as the formation of an electric-field hotspot at the structure center as predicted by theory, this structure can enhance emission polarization and serve as a photochemical reaction center.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Materials Science, Multidisciplinary
Jinzhou Bai, Yanbai Shen, Sikai Zhao, Ang Li, Zhangke Kang, Baoyu Cui, Dezhou Wei, Zhenyu Yuan, Fanli Meng
Summary: Traditional metal oxide semiconductor gas sensors face challenges for portable devices and integration due to high power consumption caused by high working temperature. 2D nanomaterials have shown promise as room-temperature gas sensors, but several disadvantages still need to be overcome for high-performance sensors. In this study, SnO2 quantum dots functionalized SnS2 nanosheets were synthesized and showed a high response to NH3 gas at room temperature, with fast response speed, good repeatability, high selectivity, and long-term stability. The sensing mechanism is mainly attributed to the 0D/2D heterostructure and heterojunction between SnO2 quantum dots and SnS2 nanosheets. This research provides a promising candidate for room-temperature NH3 detection.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Physical
Jinglin Li, Hao Yuan, Jiaxin Li, Wenjie Zhang, Yanqi Liu, Na Liu, Haijie Cao, Zhengbo Jiao
Summary: Chemically bonded BiVO4/ZnO quantum dot heterostructures were fabricated using a simple solution dry-out method, forming chemically bonded interfaces (CBIs) that promote photoexcited electron transfer and serve as hole-blocking layers. The CBIs showed excellent performance in both UV and visible light regions, leading to significantly increased photocurrent density in BiVO4/ZnO QDs without a cocatalyst. Additionally, ethylene glycol was found to partially reduce Bi ions to elemental bismuth during the calcination process, contributing to improved water oxidation kinetics.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Biochemistry & Molecular Biology
Girgis Obaid, Menitte Eroy, Jie Zhao, Shazia Bano, Mari Mino-Kenudson, Tayyaba Hasan
Summary: The presence of desmoplasia in pancreatic ductal adenocarcinoma (PDAC) is associated with poor treatment outcomes and reduced drug delivery. By analyzing collagen subtypes in PDAC tumors following different treatment regimens, immunofluorescence profiling can predict long-term survival and tumor growth inhibition. This information can aid in personalized treatment and improve patient survival.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
(2024)
Article
Biochemistry & Molecular Biology
Fatemeh Malekpour, Rashin Bahrami, Mahshid Hodjat, Neda Hakimiha, Behnam Bolhari, Aidin Sooratgar, Soheil Niavarzi
Summary: This study investigated the effect of photobiomodulation (PBM) therapy using an 808 nm diode laser on cellular modulation mechanisms in regenerative endodontic procedures (REPs). The results showed that PBM treatment significantly increased cell viability and migration, and enhanced the release of TGF-131 from dentin.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
(2024)
Article
Biochemistry & Molecular Biology
Pranathi Tata, Ramakrishnan Ganesan, Jayati Ray Dutta
Summary: Thin film coatings with potent antibacterial properties are widely used in medical devices, frequently touched surfaces, and food packaging. However, achieving antibacterial performance under both light and dark conditions remains a challenge. In this study, we successfully prepared AgBr-coated ZnO nanorod thin film architecture using a unique surfactant-mediated solution-phase spin-coating approach. The resulting structures showed dual functionality as antimicrobial agents and photosensitizers, effectively enhancing the visible-light photodisinfection efficacy of ZnO nanorods. The concentration of the surfactant-based precursor solution could be modulated to control the AgBr content. Additionally, components like urea and lactic acid were found to enhance the photocatalytic efficiency of the structures.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
(2024)
