Article
Chemistry, Physical
Chi-Jung Chang, Jem-Kun Chen, Kuen-Song Lin, Ci-You Huang, Chieh-Lin Huang
Summary: The ZnO@ZnS nanorod-decorated Ni foam photocatalyst showed enhanced photocatalytic activity for hydrogen generation compared to the ZnO/Ni foam counterpart. The incorporation of the ZnS shell and the conductive Ni foam substrate facilitated the separation of photoexcited charge carriers. The porous texture of the Ni foam promoted effective contact between the sacrificial agent and the immobilized photocatalyst, leading to improved hydrogen generation performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Bumjin Park, Won-Woo Park, Ji Yong Choi, Woong Choi, Young Mo Sung, Soohwan Sul, Oh-Hoon Kwon, Hyunjoon Song
Summary: In this study, the effect of morphology and surface nature of Pt cocatalysts on photocatalytic hydrogen evolution activity in Pt-tipped CdSe nanorods was investigated. The rough tips exhibit the highest activity, followed by the round and cubic tips. The cubic tips exhibit lower charge-separated states feasible for reacting with water and water reduction rates due to their defectless surface facets.
Article
Chemistry, Physical
Kaituo Dong, Cristofer Pezzetta, Qiu-Cheng Chen, Alexander Kaushansky, Amedeo Agosti, Giacomo Bergamini, Robert Davidson, Lilac Amirav
Summary: Carbon-heteroatom cross-coupling reactions are important for industrial chemical processes, especially for the synthesis of pharmaceuticals, agrochemicals, and biologically active compounds. Photocatalyst/transition metal dual catalytic systems, using semiconductor nanoparticles as heterogeneous light sensitizers, offer advantages such as low-cost production, tunable photophysical properties, easy separation, high photostability, and recyclability. The combination of CdSe@CdS nanorod photocatalysts with a Ni complex catalyst enables efficient selective light-induced C-O cross-coupling reactions, achieving high yield and impressive turnover numbers.
Article
Engineering, Electrical & Electronic
Ming-Hsien Li, Keng-Tien Liang, Ze-Hao Wu, Sang-Hao Lin, Yi-Shiang Chiu, Chang-Hsueh Lee, Ming-Yu Kuo, Chia-Feng Lin, Hsiang Chen, Dong-Sing Wuu, Jung Han
Summary: ZnO/ZnS/BIQ-TIPs nanostructures were fabricated for light/gas dual sensing application. The synergic effects of ZnS shell and organic BIQ-TIPs materials enhanced the photosensing capability of ZnO NRs, and the ZnS shell further extended the photosensing spectrum. In addition, the light-assisted hydrogen gas sensing capability was boosted by the incorporation of ZnS shell and BIQ-TIPs materials.
IEEE SENSORS JOURNAL
(2022)
Article
Chemistry, Physical
Haruki Nagakawa, Tetsu Tatsuma
Summary: This study reports novel facet-selective photoreduction and photo-oxidation reactions for wurtzite CdS. Pt nanoparticles were selectively deposited on specific crystal planes of CdS using different methods, allowing facet-selective reactions. These facet-selective reactions provide possibilities for designing complex photocatalytic systems.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Engineering, Chemical
Annamalai Raja, Namgyu Son, Misook Kang
Summary: A rGO-Gd2MoO6-ZnO nanocomposite was synthesized through hydrothermal method, showing stable photocatalytic performance in reducing Cr(VI) to Cr(III). Optimized pH and fast charge transfer were found to enhance the photocatalytic reduction efficiency to 94.5% within 160 min.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Dong Yang, Wenjing Wang, Ke An, Yao Chen, Zhanfeng Zhao, Yuchen Gao, Zhongyi Jiang
Summary: Solar energy-driven photocatalysis is a promising green technology for degrading organic pollutants in water. The novel cPTA/CN nanorod photocatalysts prepared in this study show high efficiency in degrading Rhodamine B and tetracycline under visible light irradiation, indicating their potential application in the treatment of organic pollutants in aqueous solution.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Environmental
Qing Li, Shasha Zheng, Meng Du, Huan Pang
Summary: A facile approach for preparing ultrathin nanosheet metal-organic frameworks@NiO/Ni nanorods was described, showing increased stability and highly active sites for urea electrolysis. These hierarchical nanocomposites exhibited excellent properties, with potential for promising electrocatalytic applications in the urea oxidation reaction.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Yong Yan, Haocen Liu, Chunyue Liu, Yuguo Zhao, Shuzhen Liu, Dong Wang, Mathias Fritz, Adriana Ispas, Andreas Bund, Peter Schaaf, Xiayan Wang
Summary: The study prepared free-standing Ni/Ni-M NRAs electrodes with enhanced oxygen evolution reaction (OER) activity, especially the Ni/Ni-Fe NRAs showed better OER durability.
APPLIED MATERIALS TODAY
(2021)
Article
Engineering, Environmental
Chengyue Yang, Gongshu Wang, Xianjun Li, Jiwei Wang, Jianshe Hu
Summary: In this study, 3D aerogel PAN-C3N4 was prepared and a layer of Ni-MOF was grown on its surface to form 3D aerogel composites (LP-C3N4@NiMOF-74-S) co-doped with nitrogen and sulfur. The adsorbent showed excellent performance in adsorbing mercury (II) and elemental mercury, with maximum adsorption capacities exceeding those of other sulfur-functionalized adsorbent materials. Moreover, LP-C3N4@Ni-MOF-74-S exhibited remarkable adsorption capacity in dynamic adsorption experiments on industrial wastewater, rapidly reducing the concentration of mercury (II) to below the acceptable limit for drinking water. Additionally, LP-C3N4@Ni-MOF-74-S showed promising applications as a sensor and photocatalyst.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Yunfang Yan, Xuejie Cao, Liangmin Ning, Fei Lin, Wenzhuo Qin, Xin Liu, Wen Gu
Summary: This research reports an outstanding catalyst consisting of NiMo-based nanorod arrays supported on Ni foams for efficient alkaline hydrogen evolution reaction (HER). The catalyst exhibits ultralow overpotential and remarkable longevity, attributed to the favorable formation of heterointerfaces and accelerated electron transfer. The integration of different compositions and hierarchical nanostructures plays an important role in developing electrode materials for HER.
ACS APPLIED NANO MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Haibin Sun, Shuangshuang Liang, Zijun Xu, Wenrui Zheng, Xiaoyu Liu, Chao Zhang, Shasha Gao, Zhichao Ji, Shenghong Liu, Wenhe Xie
Summary: Hierarchical Ni3S2 nanorod@nanosheet arrays were designed and prepared on three-dimensional Ni foam via hydrothermal sulfuration. The array showed excellent supercapacitor performance due to its hierarchical structure and synergistic cooperation.
Article
Chemistry, Physical
Hongtao Wang, Haiyue Zhang, Ziyang Long, Haifeng Shi
Summary: Internal electric fields have been introduced into photocatalysts to enhance photocatalytic efficiency by separating photoinduced electrons and holes. However, the electrostatic shielding effect can quickly saturate the internal electric field, suppressing carrier separation. In this study, CuO/NaNbO3 nanorod piezo-photocatalysts were synthesized to sustainably separate photoinduced carriers using a dynamic internal electric field generated by periodic ultrasound. The incorporation of the internal electric field increased the photocurrent response and achieved a 20% enhancement in the photocatalytic elimination rate of tetracycline.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Xiaochun Zheng, Yidi Wang, Shoutian Ren, Qixiao Gai, Wenjun Liu, Quanli Dong
Summary: Interface defects are one of the main factors affecting the photocatalytic performance of nanocomposites. This study improved the photocatalytic performance of C3N4 by doping it with P and optimizing carrier transfer through the formation of Ni-P-N bonds, resulting in increased hydrogen evolution rate and apparent quantum efficiency.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Engineering, Environmental
Tomoyo Goto, Sung Hun Cho, Chikara Ohtsuki, Tohru Sekino
Summary: The study found that the adsorption and catalytic efficiency of HAp can be controlled by changing its crystallographic properties, with TiO2 significantly affecting the Zeta potential of HAp. The synthesis of needle-shaped HAp crystals with TiO2 nanoparticles through solvothermal treatment using isopropanol at different concentrations showed a decrease in aspect ratio as isopropanol concentration increased, resulting in reduced adsorption of acidic acid fuchsin dye but slightly increased photocatalytic decolouration rate.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Eran Aronovitch, Philip Kalisman, Lothar Houben, Lilac Amirav, Maya Bar-Sadan
CHEMISTRY OF MATERIALS
(2016)
Article
Chemistry, Multidisciplinary
Yifat Nakibli, Yair Mazal, Yonatan Dubi, Maria Waechtler, Lilac Amirav
Article
Chemistry, Physical
Sandip K. Pahari, Shunit Olszakier, Itamar Kahn, Lilac Amirav
CHEMISTRY OF MATERIALS
(2018)
Article
Chemistry, Multidisciplinary
Firdoz Shaik, Imanuel Peer, Prashant K. Jain, Lilac Amirav
Article
Chemistry, Physical
Amedeo Agosti, Yifat Nakibli, Lilac Amirav, Giacomo Bergamini
Article
Chemistry, Multidisciplinary
Amedeo Agosti, Mirco Natali, Lilac Amirav, Giacomo Bergamini
Article
Chemistry, Physical
Itamar Benisti, Firdoz Shaik, Zheng Xing, Alon Ben-refael, Lilac Amirav, Yaron Paz
Summary: Graphitic carbon nitride is a fascinating visible-light-responsive conjugated polymer suitable for solar to fuel conversion. The addition of Pt nanoparticles as cocatalysts can significantly enhance the activity towards water oxidation reaction, but the improvement is short-lived due to insufficient stability of Pt attachment to the surface.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Zheng Xing, Kaituo Dong, Nick Pavlopoulos, Yuexing Chen, Lilac Amirav
Summary: The study reports on a unique irradiation-triggered self-assembly and recrystallization phenomenon of crystalline carbon nitride quantum dots. Unlike conventional self-assembly of nanocrystals into ordered superstructures, this photoinduced self-assembly resembles a click reaction process of macromolecules, initiated by activated functional groups along the perimeters.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Kaituo Dong, Qiu-Cheng Chen, Zheng Xing, Yuexing Chen, Yuanshen Qi, Nicholas G. Pavlpoulos, Lilac Amirav
Summary: In this study, a new strategy is presented to prevent cation exchange and obtain metallic silver tipping on cadmium chalcogenide nanorods. The formation of Ag trioctylphosphine complex during Ag deposition on nanorods is identified as a critical step in preventing undesirable cation exchange. The study demonstrates moderate control over the size of crystalline Ag tip in the range of 1.5-5.4 nm.
CHEMISTRY OF MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Firdoz Shaik, Riccardo Milan, Lilac Amirav
Summary: Graphitic carbon nitride (g-C3N4) is a conjugated polymer with visible light responsiveness and various intriguing characteristics, making it highly beneficial for numerous potential applications. This study presents a novel design and universal approach for fabricating unique plasmonic g-C3N4 nanoscale hybrids with well-controlled morphology.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Kaituo Dong, Cristofer Pezzetta, Qiu-Cheng Chen, Alexander Kaushansky, Amedeo Agosti, Giacomo Bergamini, Robert Davidson, Lilac Amirav
Summary: Carbon-heteroatom cross-coupling reactions are important for industrial chemical processes, especially for the synthesis of pharmaceuticals, agrochemicals, and biologically active compounds. Photocatalyst/transition metal dual catalytic systems, using semiconductor nanoparticles as heterogeneous light sensitizers, offer advantages such as low-cost production, tunable photophysical properties, easy separation, high photostability, and recyclability. The combination of CdSe@CdS nanorod photocatalysts with a Ni complex catalyst enables efficient selective light-induced C-O cross-coupling reactions, achieving high yield and impressive turnover numbers.
Article
Chemistry, Physical
Yuexing Chen, Kaituo Dong, Lilac Amirav
Summary: This paper reports the selective growth of nanowires with a special structure, which can improve the efficiency of photocatalytic reactions. The nanowires exhibit high photocatalytic H2 production rate and apparent quantum efficiency, paving the way for new applications.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Physical
Hagit Shoyhet, Nicholas G. Pavlopoulos, Lilac Amirav, Noam Adir
Summary: The combination of market-grade spinach PSII with gold nanoparticles modified with cystamine-2,6-dichlorobenzoquinone (PSII-AuNPCys-DCBQ) results in high photocurrent values and stability, showing enhanced performance of PSII in converting solar energy to electrical current. The quinone-modified gold nanoparticles play a dual role in harvesting and transferring excitation energy to PSII, as well as improving electron transfer to the graphite anode, leading to significant enhancement in anodic photocurrent.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Materials Science, Multidisciplinary
Philip Kalisman, Lilac Amirav
