Article
Chemistry, Physical
Xuechen Li, Chaojie Shi, Zixuan Feng, Jie He, Rui Zhang, Zhengchun Yang, Peng Pan, Huayi Li, Deqiang Feng, Lingcheng Zheng
Summary: In this study, Si nanowires/ZnFe2O4/Ag composite photocatalyst is prepared through metal-assisted chemical etching and hydrothermal methods. It exhibits high photocatalytic performance under visible light, with a photocurrent density of 1.76 mA/cm2 and a Methyl orange photodegradation rate of 19% within 90 min. Magnetic field is further applied to enhance the photocatalytic efficiency by increasing carrier transfer and charge separation. The composite photocatalyst shows negative magnetoresistance, allowing for more effective transfer of photo-generated carriers to the electrode surface and improved photocatalytic performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Chemical
Chao Zeng, Haojia Ding, Linping Bao, Yujing Su, Zhipeng Wang
Summary: The study successfully developed highly efficient AgIO3@X heterojunction photocatalysts via a simple in situ reduction method, showing great photocatalytic activity under visible light and efficient degradation of toxic organic pollutants in wastewater.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Laxmiputra, D. B. Nityashree, K. Udayabhanu, S. M. Anush, K. Pramoda, K. Prashantha, B. N. Beena ullala Mata, Y. R. Girish, H. Nagarajaiah
Summary: In this study, a direct Z-scheme MoS2/ZnFe2O4 heterostructure photocatalyst was synthesized via a hydrothermal method. The photocatalytic activity of this catalyst was evaluated and showed high efficiency in degrading methylene blue dye. The study also analyzed the reusability of the catalyst and determined the Z-scheme mechanism for the degradation process. This work provides a promising strategy for designing MoS2/ZnFe2O4-based heterostructures for removing organic pollutants.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Engineering, Chemical
Yuting Zhu, Jingjing Xu, Mindong Chen
Summary: The La2Ti2O7/Bi5O7I (LB) composite photocatalyst was synthesized by an in-situ growth method. The optimal photocatalytic efficiency was achieved by the LB-2 composite photocatalyst, showing higher activity than the individual components La2Ti2O7 and Bi5O7I mainly due to the heterojunction formed between them. The charge transfer mechanism and degradation mechanism of CIP were proposed based on data analysis and energy band theory.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Margaux Desseigne, Virginie Chevallier, Veronique Madigou, Marie-Vanessa Coulet, Olivier Heintz, Hassan Ait Ahsaine, Madjid Arab
Summary: In this work, the application of Au/WO3 composite as a photocatalyst for dye degradation under solar light irradiation was reported. The synthesis parameters of the nanocomposites and their effects on the structural and catalytic properties were investigated. The Au/WO3 PS composite was found to be the most efficient in degrading cationic dyes under native pH conditions.
Article
Chemistry, Physical
Ding Yang, Xiaoyan Cai, Junying Zhang, Bangfu Ding, Yulong Zhao, Xiuquan Gu, Liang Mao, Yinghuai Qiang
Summary: The Fe-CN photocatalyst prepared by doping Fe shows high NH4+ generation rate under full-spectrum irradiation, attributed to the Fe-CN heterostructure promoting visible light absorption and separation of photo-generated electron-hole pairs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Inorganic & Nuclear
Qi Hu, Tongyan Ren, Dashuang Deng, Lei Xu, Jiufu Chen, Yao Xiao, Ping He
Summary: The ternary photocatalyst Mn@PC/g-C3N4 exhibited superior photocatalytic performance in the degradation of methyl orange and lemon yellow under visible light irradiation, with 20% Mn@PC/g-C3N4 showing the highest photodegradation rate.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Environmental Sciences
Loan T. T. Nguyen, Hang T. T. Nguyen, Lan T. H. Nguyen, Anh T. T. Duong, Hai Q. Nguyen, Nguyen D. Bui, Viet T. M. Ngo, Duyen Thi Cam Nguyen, Thuan Van Tran
Summary: The present study focused on synthesizing novel ZnLaxFe2-xO4 catalysts and utilizing them for the photocatalytic degradation of Rhodamine B dye. The results showed that increasing the amount of La3+ dopant can decrease the band gap energy of the catalysts, thereby improving the degradation efficiency. The optimized catalyst ZnLa0.05Fe1.95O4 exhibited the highest degradation efficiency and reaction rate under visible light irradiation, while also showing high recyclability and stability. This study is of great importance for the development of efficient catalysts for the visible light-driven degradation of toxic dyes.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Applied
Mohammad Hasan, Mayada S. Ali, Metwally Madkour
Summary: In this study, a new chelating agent and its coordinated complexes were prepared and characterized. A one-pot preparation approach for transition metal oxide nanoparticles was developed, allowing for the production of highly pure nanoparticles without the need for washing. The synthesized nanoparticles were evaluated for their photocatalytic activities.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Chemistry, Physical
B. Janani, Asad Syed, L. Sruthi, P. R. Sivaranjani, Abdallah M. Elgorban, Ali H. Bahkali, Nouf S. S. Zaghloul, Manar M. Badawy, Arunava Das, S. Sudheer Khan
Summary: CdO/ZnFe2O4 nanohybrid heterostructure with narrow bandgap and high surface area shows enhanced photocatalytic performance by improving light absorption and providing more active sites.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Engineering, Chemical
Rui Zhang, Chen Zhao, Junrong Yu, ZiYin Chen, JiaCheng Jiang, Kunlin Zeng, Lu Cai, Ze Yang
Summary: The ZnFe2O4/PANI/Ag2CO3 photocatalyst synthesized by the co-precipitation method exhibits excellent photocatalytic degradation performance towards bisphenol A and nitrobenzene.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Chemistry, Physical
Andressa Muller, Leandro A. Faustino, Kleber T. de Oliveira, Antonio O. T. Patrocinio, Andre S. Polo
Summary: The properties and reactivity of metal complex photocatalysts for solar-to-fuel conversion can be controlled by the molecular design of their ligands. In this study, rhenium(I) tricarbonyl polypyridyl compounds with different N-heterocyclic ligands were investigated as photocatalysts for reducing CO2 to CO. These complexes showed exceptional photocatalytic performance, with significantly increased TONCO values compared to the unsubstituted parental complex. The presence of N-heterocyclic substituents enhanced the visible-light absorption properties, favored the kinetics and thermodynamics of the photocatalysis, inhibited deactivation of the photocatalysts, and unlocked an alternative CO2 photoreduction pathway.
Article
Materials Science, Multidisciplinary
Chuan Yu, Shifa Wang, Kening Zhang, Maoyuan Li, Huajing Gao, Jing Zhang, Hua Yang, Lei Hu, Angadi. V. Jagadeesha, Dengfeng Li
Summary: A polyacrylamide gel method combined with low temperature sintering technology was used to fabricate BaTiO3/gamma-Al2O3 composite photocatalysts with excellent photocatalytic activity for the degradation of tetracycline hydrochloride under simulated sunlight. The effects of BaTiO3/ gamma-Al2O3 mass percentages, drug concentrations and pH values on photocatalytic activity were investigated. The optimum conditions were found to be 5 wt% BaTiO3/ gamma-Al2O3, 50 mg/L drug concentration, and pH 6.77. The enhanced photocatalytic activity of BaTiO3/ gamma-Al2O3 was attributed to the defect states in alumina, interfacial defects between barium titanate and alumina, and the type II band arrangement structure.
Article
Chemistry, Physical
Shenglin Jin, Changzhi Han, Sihui Xiang, Chong Zhang, Jia-Xing Jiang
Summary: This study constructs two furan-based D-A polymer photocatalysts by using furan and dibenzofuran as electron donors and dibenzothiophene-S,S-dioxide as the acceptor for photocatalytic hydrogen production. Compared to the dibenzothiophene-S,S-dioxide based polymer photocatalyst, the furan-based polymer photocatalyst exhibits a broader light absorption range and more efficient charge separation, leading to a higher photocatalytic activity under visible light.
JOURNAL OF CATALYSIS
(2023)
Article
Energy & Fuels
Yichao Wang, Zipeng Xing, Chunxu Wu, Meijie Liu, Jiapeng Gao, Na Zhang, Zhenzi Li, Haixia Liu, Wei Zhou
Summary: The development of peanut-like Zn0.5Cd0.5S/BiVO4 heterostructure composite photocatalysts is a promising approach to enhance photocatalytic efficiency under visible light irradiation.
Article
Chemistry, Organic
Eethamukkala Ubba, Fazlur-Rahman Nawaz Khan
Summary: In the presence of the heterogeneous catalyst M-KSF, 2-chloro-3-formyl quinolines were efficiently converted into regioselective 3-(quinolin-3-yl)pentane-1,5-diones in an aqueous medium.
POLYCYCLIC AROMATIC COMPOUNDS
(2022)
Article
Chemistry, Organic
Changalaraya Dasaradhan, Fazlur-Rahman Nawaz Khan
Summary: An efficient catalytic system for the synthesis of 3-alkenyl isochromen-1-ones has been developed. The activation of 3-chloroisochromen-1-ones by alkyl phosphonium salt is crucial for the regio-selective Heck coupling reactions. The technique has also been extended to other analogs.
POLYCYCLIC AROMATIC COMPOUNDS
(2022)
Article
Chemistry, Organic
Ramesh Dalavai, Kannayiram Gomathi, K. Naresh, Fazlur-Rahman Nawaz Khan
Summary: A one-pot synthesis of quinolinyl amine nitriles was achieved using a Zn(CN)(2)/trifluoroethanol system, which is eco-friendly and ambient. The synthesized compounds exhibited moderate-to-good activity in antidiabetic, anti-inflammatory, antioxidant, and molecular docking studies.
POLYCYCLIC AROMATIC COMPOUNDS
(2022)
Article
Chemistry, Physical
Ramesh Dalavai, Fazlur-Rahman Nawaz Khan
Summary: The facile synthesis of silicon-containing trimethylsilylated quinolines was achieved using TMSCN as a reagent and ZnI2 as a catalyst at room temperature in dichloromethane, resulting in excellent yields. Additionally, the silylated quinolines were successfully converted into quinolinyl acetonitriles in significant yields in the presence of dilute hydrochloric acid. The reaction of TMSCN with aldehyde functional groups formed protected silicon ethers as confirmed by HNMR, CNMR, and Mass spectral analysis.
Article
Chemistry, Organic
Yadavalli Suneel Kumar, Fazlur-Rahman Nawaz Khan
Summary: This study demonstrates an efficient Pd-catalyzed C-OH bond activation and subsequent C-sp (2)-C-sp bond formation under copper-free aqueous conditions using specific reagents, offering a higher synthetic utility.
POLYCYCLIC AROMATIC COMPOUNDS
(2022)
Article
Chemistry, Organic
Changalaraya Dasaradhan, Fazlur-Rahman Nawaz Khan
Summary: This study presents an efficient and straightforward method for synthesizing quinazolines using urea as a reaction medium, providing significant yields and being non-toxic and easily biodegradable, making it environmentally friendly.
POLYCYCLIC AROMATIC COMPOUNDS
(2022)
Article
Chemistry, Organic
Manivel Pitchai, Chitrala Teja, Fazlur-Rahman Nawaz Khan
Summary: An efficient synthesis of 1,1,3-trisubstituted-1H-isochromenes is reported in this study, using isochromen-1-ones and Grignard Reagents through sequential Grignard reactions/acid-catalyzed cyclization. The cyclization proceeds smoothly with montmorillonite K10 catalyst, resulting in excellent yields of the desired product.
POLYCYCLIC AROMATIC COMPOUNDS
(2022)
Article
Chemistry, Organic
Chitrala Teja, Ashna Garg, G. K. Rohith, Hanumanthu Roshini, Sushovan Jena, Fazlur Rahman Nawaz Khan
Summary: The synthesis of benzopyran, pyranocoumarin, xanthene, dihydrofuran, and 4-hydroxy-coumarin derivatives was achieved using a green chemical approach with deep eutectic solvent (DES) as catalyst and microwave assistance. The reaction exhibited high regio, stereo selectivities, and yields under milder MW-irradiation, with an easily recoverable DES catalyst and eco-friendly reaction strategy as notable advantages.
POLYCYCLIC AROMATIC COMPOUNDS
(2022)
Article
Chemistry, Organic
Chitrala Teja, Hanumanthu Roshini, Pandurangan Thiyagamurthy, J. Arul Daniel, S. Asha Devi, R. Vidya, Fazlur Rahman Nawaz Khan
Summary: A series of quinoline-chalcones were synthesized through one-pot Friedlander annulation followed by Claisen-Schmidt condensation in the presence of tetrabutylammonium ionic liquids. The use of tetrabutylammonium ionic liquids as a catalyst and base medium under microwave irradiation proved to be an efficient approach for C-C bond formation. The synthesized compounds were evaluated for their antimicrobial, antioxidant, and anticancer properties, and structure-activity relationship studies were conducted to improve pharmacological activities.
POLYCYCLIC AROMATIC COMPOUNDS
(2023)
Article
Chemistry, Organic
Eethamukkala Ubba, Fazlur-Rahman Nawaz Khan, Chitrala Teja, Ramesh Dalavai
Summary: A facile one-pot domino aldol condensation/Michael addition/Sonogashira coupling reaction was developed using a Pd/Cu catalyst system. This methodology allows for the synthesis of highly functionalized compounds in a mild and efficient manner.
POLYCYCLIC AROMATIC COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
B. Kumaar Swamy Reddy, Sushmitha Veeralingam, Pramod H. Borse, Sushmee Badhulika
Summary: This research demonstrates a broadband photodetector based on a hybrid organic-inorganic heterojunction, showing fast response times and superior responsivities in the UV, visible, and NIR spectra. By enhancing the interfacial area between SnSe2 and PEDOT:PSS, efficient electron-hole pair separation is achieved, leading to the high responsivity of the photodetector.
MATERIALS CHEMISTRY FRONTIERS
(2022)
Article
Physics, Multidisciplinary
Jyoti Gupta, Dibakar Das, Anirudha Karati, Joydip Joardar, Pramod H. Borse
Summary: Nanostructured MoS2 synthesized hydrothermally was immobilized on graphite paper to create an electrode for hydrogen evolution. Through chemical optimization and characterization, it was found that the optimized MoS2 exhibited higher electrocatalytic stability and hydrogen production rate.
Article
Materials Science, Multidisciplinary
Riyaaz Uddien Shaik, Malobika Karanjai, Joydip Joardar, Neha Y. Hebalkar, Pramod H. Borse
Summary: Deposition of adherent nickel phosphide film on graphite substrate using economic electroless technique is studied. The activation of graphite surface under O2 atmosphere promotes film deposition and results in an adherent Ni3P film which is thermally stable beyond 1000 degrees C. The Ni-P/GR film shows potential applications in hydrogen evolution reaction (HER) for electrocatalytic energy generation and as a graphite boat usable under elevated temperatures.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
B. Kumaar Swamy Reddy, Smrutiranjan Panda, Easwaramoorthi Ramasamy, Sushmee Badhulika, Ganapathy Veerappan, Pramod H. Borse
Summary: In this study, the toxic Pb2+ cation in methyl ammonium lead halide (MAPbX3) was partially or completely replaced by eco-friendly Mg-ions, resulting in the synthesis of MAPb(X)Mg(1-X)Cl(2)I perovskite. The synthesized perovskite showed promising performance as a self-powered photodetector, offering an eco-friendly alternative to traditional MAPbX(3) by replacing nearly 50% of toxic Pb with benign Mg2+.
MATERIALS ADVANCES
(2023)
Article
Materials Science, Multidisciplinary
B. Kumaar Swamy Reddy, Smrutiranjan Panda, Easwaramoorthi Ramasamy, Sushmee Badhulika, Ganapathy Veerappan, Pramod H. Borse
Summary: This study attempts to address the toxicity issue of methyl ammonium lead halide (MAPbX3) by substituting the toxic Pb2+ ion with eco-friendly Mg2+ ions. MAPb(X)Mg(1-X)Cl(2)I materials were synthesized and used for the fabrication of self-powered photodetectors, demonstrating the importance of Mg ion substitution for eco-friendly perovskite opto-electronic devices.
MATERIALS ADVANCES
(2023)
