Article
Chemistry, Physical
Lei Zou, Rongjian Sa, Hong Zhong, Haowei Lv, Xinchen Wang, Ruihu Wang
Summary: In this study, a CdS@COF core-shell structure was successfully synthesized through a structural and electronic engineering strategy, which significantly improved the efficiency of photocatalytic CO2 reduction. The integration of CdS as an electron transfer channel enables photoelectron transfer and subsequent CO2 reduction from Zn-porphyrin to Co-bipyridyl units.
Article
Chemistry, Analytical
Chia-Lin Yu, Hsing-Yin Chen, Nai-Chang Lo, Chien-Liang Lee, Po-Yu Chen
Summary: In this study, polyhedral copper nanoparticles were electrodeposited on stainless-steel from a hydrophobic protic amide-type ionic liquid. The co-deposition of cadmium significantly altered the surface morphologies and electrocatalytic activities of the nanoparticles. CuCdNPs showed a higher reductive overpotential compared to CuNPs, indicating the kinetic hindrance of CuNPs in the rate-determining step of nitrate reduction.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Changxue Dong, Tiantao Qiao, Yubin Huang, Xin Yuan, Jie Lian, Tao Duan, Wenkun Zhu, Rong He
Summary: The CdSxTe1-x nanobelts capped by ethylenediamine showed improved light absorption and uranium removal capacity in the photocatalytic reduction of hexavalent uranium. The optimum photocatalytic activity was achieved with 5% Te2- doping, balancing the factors of amino groups and bandgap to enhance the uranium extraction capacity.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Yaru Wang, Jianjun Zhao, Wenqing Hou, Yiming Xu
Summary: In CdS photocatalysis, loading Ni3S4 can increase the production rates of H2 and H2O2, but the photoelectron accumulation efficiency on the cathode is relatively low. A possible mechanism is proposed, involving interfacial electron transfer from CdS to Ni3S4, followed by increased surface reaction for proton (oxygen) reduction on Ni3S4 sites and sulfide (water) oxidation on CdS sites.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Multidisciplinary
Wei-Yang Chou, Po-Hsiang Fang, Wen-Chieh Chiang, Horng-Long Cheng
Summary: We have successfully fabricated a magnetic semiconductor thin film composed of polymer and magnetic nanoparticles, and demonstrated strong spin coupling between the polymer molecules and the magnetic nanoparticles.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Materials Science, Multidisciplinary
Yarden Melamed, Nabasmita Maity, Louisa Meshi, Noam Eliaz
Summary: Electrodeposition of pure aluminum on copper and nickel substrates from an ionic liquid at room temperature was successfully achieved, resulting in dense and homogeneous aluminum deposits with nanocrystalline structure. The process exhibited a quasi-reversible reaction with current affected by both charge transfer and mass transport. Additionally, the deposition rate and grain size could be significantly improved by adjusting the applied cathodic potential.
Article
Nanoscience & Nanotechnology
Stefan Benndorf, Alexander Schleusener, Riccarda Mueller, Mathias Micheel, Raktim Baruah, Jan Dellith, Andreas Undisz, Christof Neumann, Andrey Turchanin, Kerstin Leopold, Wolfgang Weigand, Maria Waechtler
Summary: In this study, CdSe quantum dots (QDs) combined with [FeFe] hydrogenase mimics were utilized as molecular catalytic reaction centers for photocatalytic hydrogen generation. The direct linking of [FeFe] hydrogenase mimics to the QD surface established a close contact between the two components, enabling efficient electron transfer for hydrogen evolution. The researchers successfully functionalized the QDs immobilized in a thin-film architecture with [FeFe] hydrogenase mimics via covalent linking, achieving high catalytic activity.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
B. Poornaprakash, S. V. Prabhakar Vattikuti, Y. L. Kim, M. Siva Pratap Reddy, Vasudeva Reddy Minnam Reddy
Summary: In this study, CdS:Nd nanoparticles were fabricated via a co-precipitation method, showing adjustable optical, magnetic and photocatalytic behavior by varying Nd ion doping concentration. The doping of Nd ions into CdS matrix was confirmed, with nanoparticles in spheroid shape and sizes ranging from 8-10 nm. Doping concentration-dependent redshift in CdS NP spectra was observed, along with different magnetic properties, and the CdS:Nd (4 at%) sample exhibited enhanced photocatalytic activity compared to undoped CdS NPs.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Chemistry, Physical
Yufeng Wang, Greg M. Swain, G. J. Blanchard
Summary: This study reports on the surface charge-induced free charge density gradient and refractive index gradient in room-temperature ionic liquids (RTILs), as well as the relationship between the two. It demonstrates a modulation of refractive index of approximately 15% proportional to the surface charge density, providing new insights into the utility of RTILs for electro-optic applications.
JOURNAL OF PHYSICAL CHEMISTRY B
(2021)
Article
Nanoscience & Nanotechnology
John Sakizadeh, Joseph P. Cline, Mark A. Snyder, Christopher J. Kiely, Steven McIntosh
Summary: This study demonstrates a method for the synthesis of nanocrystalline CdS/ZnS core/shell photocatalysts through controlled, aqueous phase, and ambient temperature biomineralization. The surface passivation of CdS with Zn2+ improves the hydrogen evolution activity, and the photodeposition of a platinum cocatalyst further enhances the hydrogen evolution rate. These findings establish biomineralization as an effective platform for the controlled synthesis of high-performing heterojunction photocatalysts for hydrogen evolution.
ACS APPLIED NANO MATERIALS
(2022)
Article
Engineering, Environmental
Jian Zhao, Shengnan Tian, Qinglin Huang, Linpeng Fan, Changfa Xiao
Summary: A hybrid porous membrane has been designed for dynamic photocatalytic process, which achieves efficient removal of pollutants through a combination of photocatalysis and separation process under visible light illumination. The membrane exhibits sustainable high efficiency, and significantly inhibits the photocorrosion and leakage of cadmium sulfide.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Areef Billah, Fumiya Tojo, Shigeru Kubota, Fumihiko Hirose, Bashir Ahmmad
Summary: Organic molecule embedded CdS nanocomposites prepared by the solvothermal method exhibit high efficiency and potential for hydrogen production via water splitting.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Songsong Cui, Xiaoyan Wang, Zixia Lin, Mingye Ding, Xiaofei Yang
Summary: Efficient solar absorption and photoinduced charge separation are crucial for solar-energy conversion. In this study, hollow-structured CdS semiconductors with a textile structural surface were successfully synthesized using a templated-assisted reverse cation exchange strategy. The synthesized CdS sample exhibited significantly enhanced photocatalytic hydrogen evolution compared to reported CdS nanorods, which can be attributed to its special hollow cubic structure with a thin shell that enhances light-harvesting and provides abundant photocatalytic active sites.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Environmental Sciences
Sonchai Intachai, Panita Sumanatrakul, Nithima Khaorapapong
Summary: The fabrication of zinc sulfide (ZnS) and cadmium sulfide (CdS) hybrids was achieved by sulfidization of Zn(II) or Cd(II) adsorbed in dodecylsulfate modified CoAl-layered double hydroxide. The resulting nanocrystals of ZnS or CdS showed improved surface area and spectroscopic properties. These nanohybrids demonstrated high adsorption capacity and efficient photocatalytic degradation of Congo red dye in wastewater.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
T. Hirade, K. Michishio, Y. Kobayashi, N. Oshima
Summary: In this study, the temperature dependence of the triplet positronium (ortho-Ps) lifetime in N,N,N-Trimethyl-N-propylammonium bis(trifluoromethanesulfonyl)imide (TMPA-TFSI) was investigated. The results showed that at 150℃, there was a difference in the ortho-Ps lifetime between the near-surface and bulk regions, indicating the presence of a molecular oriented structure on the surface. The ortho-Ps lifetimes became shorter as the temperature increased in both the near-surface and bulk regions, except for water.
CHEMICAL PHYSICS LETTERS
(2022)