Article
Chemistry, Physical
Fushuai Wang, Fei Pan, Guoliang Li, Peiqing Zhang, Ning Wang
Summary: The development of a cost-effective catalyst for the reduction of 4-nitrophenol to 4-aminophenol has attracted significant attention. A new Cu-based catalyst supported on spherical montmorillonite (SMt) doped with a covalent organic framework (COF) was successfully constructed, offering solutions for catalyst recycling issues and efficient catalytic activity. The combination of SMt with COF as cocatalyst displayed enhanced catalytic ability, presenting a promising strategy for the fabrication of cost-effective heterogeneous catalysts.
APPLIED CLAY SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Sagar Balgude, Kundan Patil, Shantanu Moharil, Mohit Puranik, Suresh Kadam, Pradnya Lokhande, Sunil Patange, Paresh More
Summary: In this study, highly stable Cu-Mg substituted zinc ferrites were synthesized using a sonochemical method. The phase purity, chemical composition, and morphology of the ferrites were characterized using various techniques. The synthesized ferrites showed high catalytic activity in the reduction of 4-nitrophenol in aqueous solution. The Cu and Mg substitution enhanced the catalytic performance of the ferrites, offering potential applications in environmental remediation.
Article
Materials Science, Multidisciplinary
Peicheng Jiang, Wenyuan Guo, Jin Peng, Wei Peng, Huiyong Li, Chang Peng, Shu Chen
Summary: Researchers prepared a novel transition metal carbidessupported bimetallic Ag/Cu nanoparticles composite (Ag/Cu/MXene) catalyst by one-pot reduction method. The MXene carrier effectively promoted the riping and immobilization of bimetallic Ag/Cu nanoparticles. The composite catalyst showed high catalytic activity for the reduction of 4-nitrophenol (4-NP) due to improved electron transfer capacity, with a turnover frequency (TOF) of 1127.2 h-1.
Article
Materials Science, Ceramics
Sankar Sekar, Subalakshmi Kumar, Youngmin Lee, Hyewon Jun, Jiseop Yun, Thandavarayan Maiyalagan, Sejoon Lee
Summary: In this study, ilmenite (FeTiO3) nanochips were synthesized using a template-free hydrothermal growth technique and their catalytic reduction activities for 4-nitrophenol (4-NP) were demonstrated. The nanochips prepared at 180°C showed more homogeneous distributions in morphology and size compared to other samples. Moreover, they exhibited high porosity and charge transfer activity, enabling excellent reduction performance with a high reduction rate (approximately 91%) and short reduction time (6 min). These findings suggest that FeTiO3 nanochips can be utilized as an effective catalyst for the reduction of 4-NP in future environmental technology.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Ali Zebardasti, Mohammad G. Dekamin, Esmail Doustkhah
Summary: The study focused on the hybridisation of mesoporous organosilicas to enhance adsorption and stabilisation of noble metal nanoparticles, leading to the development of efficient heterogeneous catalysts for organic transformations. Specifically, a unique organic-inorganic mesoporous silica was used as a support for Pd nanoparticles synthesis and stabilisation, resulting in a green catalyst with efficient recyclability for the conversion of aqueous p-nitrophenol to p-aminophenol at room temperature.
Article
Environmental Sciences
Fei Chen, Xinlong Yan, Xiaoyan Hu, Rui Feng, Tianbo Li, Xiaobing Li, Guofeng Zhao
Summary: In this study, copper hexacyanoferrate nanospheres decorated copper foams were synthesized and used as catalysts for the reduction of pnitrophenol and azo dyes. The catalyst calcinated at 200°C exhibited high catalytic activity and excellent reusability. The mechanism study revealed that fast electron transfer and enhanced adsorption contributed to the catalyst's enhanced performance.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Lei Wang, Zhijun Luo, Yongxiang Hong, Pamela Chelme-Ayala, Lingjun Meng, Zhiren Wu, Mohamed Gamal El-Din
Summary: In this study, an efficient strategy, interior microelectrolysis-Fenton-recycle ferrite (IM-Fenton-RF), was developed for treatment of electroplating wastewater containing chelated copper. Under optimal conditions, 99.9% copper removal was achieved with stable ferrite sludge. The ferrite sludge has advantages over traditional metal hydroxides sludge and can be recycled for further utilization.
Article
Engineering, Environmental
Lucia Mateus, Alicia Torres-Alcazar, Maria Victoria Lopez-Ramon, Miguel Angel Alvarez, Carlos Moreno-Castilla
Summary: MnFe2O4 solid nanospheres were synthesized and used as catalyst to activate PMS, degrading and mineralizing PNP effectively. The study showed excellent catalytic performance and reusability of the MSN catalyst, with complete PNP removal and high organic carbon removal efficiency. The degradation pathway and stability of the catalyst were also confirmed by the analysis of degradation products and characterization of fresh and used catalysts.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Nannan Zhang, Yuxi Meng, Yuxue Ning, Andrew E. H. Wheatley, Fang Chai
Summary: A novel and eco-friendly method was developed for synthesizing high-efficiency CuO hexapods and CuO-Ag composite as reusable catalysts in the hydrogenation of 4-nitrophenol. Both materials exhibited outstanding catalytic performance and durability, making them promising candidates for environmental protection applications.
Article
Chemistry, Physical
Po-Hsin Mao, Nguyen Nhat Huy, Suresh Ghotekar, Jia-Yin Lin, Eilhann Kwon, Fei-Yee Yeoh, Farshid Ghanbari, Grzegorz Lisak, Kun-Yi Andrew Lin
Summary: This study presents a facile approach to develop Cu-carboxylate frameworks (CuCF) composite materials and compares their catalytic behaviors. The CuCF mesh with carboxylates (CFCM) shows the highest catalytic activity and a lower reaction activation energy for catalyzing 4-NP. CFCM can be used for consecutive cycles and convenient filtration-type 4-NP reduction, as well as decolorization of methylene blue and methyl orange dyes.
Article
Environmental Sciences
Xueyu Wei, Saraschandra Naraginti, Xiaofan Yang, Xiaoping Xu, Jiyuan Li, Junwei Sun, Zhigang Liu, Jiang Pei
Summary: A novel AgVO3/rGO/CuFe2O4 heterojunction was prepared and showed superior photocatalytic activity for hydrogen evolution and pollutant degradation. The composite exhibited higher hydrogen generation rate and better degradation efficiency compared to pure AgVO3 and CuFe2O4. It also demonstrated good magnetism and stability, making it easily separated and recyclable.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Environmental
Xiaogang Liao, Lin Zheng, Qi He, Gang Li, Li Zheng, Hongmei Li, Tian Tian
Summary: The Ag/TiO2 monolithic membrane catalyst showed excellent catalytic performance and high stability in 4-NP degradation, maintaining degradation rates above 73% after six consecutive recycling runs. This promising material is highly active and easy to recover, making it a potential candidate for 4-NP degradation.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Chemistry, Multidisciplinary
Zhi-Zheng Wu, Xiao-Long Zhang, Peng-Peng Yang, Zhuang-Zhuang Niu, Fei-Yue Gao, Yu-Cai Zhang, Li-Ping Chi, Shu-Ping Sun, Jing-Wen DuanMu, Pu-Gan Lu, Ye-Cheng Li, Min-Rui Gao
Summary: A laser irradiation synthesis of gerhardtite mineral as a catalyst precursor has been demonstrated, leading to the preparation of a Cu catalyst with abundant stacking faults. This Cu catalyst exhibits improved selectivity in carbon-carbon coupling electrochemistry reactions, resulting in a higher yield of a single C2+ product.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Serkan DAYAN
Summary: The eco-friendly hybrid nanomaterial Co3O4@nHAP was successfully prepared and exhibited promising catalytic performance, which can be widely applied in environmentally friendly reaction systems. It was also tested as a counter electrode in dye-sensitized solar cells for the first time, showing good catalytic activity and reusability.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Multidisciplinary Sciences
Nurshahiera Rosdi, Raba'ah Syahidah Azis, Ismayadi Ismail, Nurhidayaty Mokhtar, Muhammad Misbah Muhammad Zulkimi, Muhammad Syazwan Mustaffa
Summary: The study demonstrates that the hybrid of spiraled multiwalled carbon nanotubes and barium hexaferrite nanoparticles exhibits excellent microwave absorption properties, making it a promising microwave absorber for applications in X and Ku bands.
SCIENTIFIC REPORTS
(2021)
Article
Materials Science, Multidisciplinary
Pankaj Yadav, Kavita Pandey, Parth Bhatt, Brijesh Tripathi, Manoj Kumar Pandey, Manoj Kumar
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2016)
Article
Materials Science, Multidisciplinary
Parth Bhatt, Manoj Kumar, Chandra P. Kant, Manoj Kumar Pandey, Brijesh Tripathi
ORGANIC ELECTRONICS
(2016)
Article
Chemistry, Multidisciplinary
Chandra P. Kanth, Jessica Patel, Mihirsinh Chauhan, Md. Aatif, Abhishek Sharma, Maitrayee U. Trivedi, Brijesh Tripathi, Jai Prakash Tiwari, Govind Gupta, Manoj Kumar, Manoj Kumar Pandey
NEW JOURNAL OF CHEMISTRY
(2017)
Article
Biochemistry & Molecular Biology
Priyank L. Bhutiya, Mayur S. Mahajan, M. Abdul Rasheed, Manoj Pandey, S. Zaheer Hasan, Nirendra Misra
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2018)
Article
Chemistry, Physical
Mihirsinh Chauhan, Abhishek Sharma, Jessica Patel, M. Aatif, Suresh Chand, Manoj Kumar Pandey, Manoj Kumar, J. P. Tiwari, Brijesh Tripathi
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2018)
Article
Biochemistry & Molecular Biology
Nidhi Gour, Chandra P. Kanth, Bharti Koshti, Vivekshinh Kshtriya, Dhruvi Shah, Sunita Patel, Reena Agrawal-Rajput, Manoj K. Pandey
ACS CHEMICAL NEUROSCIENCE
(2019)
Article
Chemistry, Multidisciplinary
Chandra P. Kanth, Maitrayee U. Trivedi, Khushali Patel, Nirendra M. Misra, Manoj Kumar Pandey
Summary: A supramolecular cucurbit[6]uril (CB[6])-enriched magnetic montmorillonite (CBCM) nanocomposite was successfully prepared and characterized, exhibiting rapid dye removal capacity and high stability due to the synergistic effects of CB[6], montmorillonite, and copper ferrite. CBCM showed outstanding performance in removing cationic dyes from wastewater, making it a promising candidate for efficient onsite treatment of industrial effluent.
Proceedings Paper
Materials Science, Multidisciplinary
Maitrayee U. Trivedi, Chandra P. Kanth, Manoj Kumar Pandey
Summary: The nanocomposite composed of magnetic nanoparticles, cucurbituril capping, and montmorillonite exhibits dual functionality for simultaneous adsorption and degradation of organic dyes in wastewater. The easy recovery and catalytic function of the magnetic nanoparticles, along with the dual role of cucurbituril capping, contribute to efficient wastewater purification. The synergistic effect among the components in the nanocomposite enhances pollutant removal and catalytic activity, making it effective for wastewater treatment.
MATERIALS TODAY-PROCEEDINGS
(2021)
Proceedings Paper
Materials Science, Multidisciplinary
Triparna Chakraborty, P. Chandra Kanth, U. Maitrayee Trivedi, Brijesh Tripathi, Manoj Kumar Pandey
Summary: Membrane technology plays a vital role in various applications such as desalination, ultrafiltration, nanofiltration, reverse osmosis, and wastewater treatment. Janus membranes (JMs), with divergent hydrophilic/hydrophobic properties on both sides of their interface, are used in fluid flow to induce unidirectional fluid transportation. Two Janus type bi-layer polymeric membranes were successfully fabricated using a doctor blading method, with hydrophilic and hydrophobic surfaces on opposite sides.
MATERIALS TODAY-PROCEEDINGS
(2021)
Article
Chemistry, Physical
Vivekshinh Kshtriya, Bharti Koshti, Deepak K. Pandey, Sumit Kharbanda, Chandra P. Kanth, Dheeraj K. Singh, Dhiraj Bhatia, Nidhi Gour
Summary: NG1 sensor self-assembles into fibrous structures and exhibits dual-sensing properties for sequential detection of Cu2+ ions and lactic acid. Structural variants NG2 and NG3 suggest the crucial role of pyridine in imparting panchromatic emission properties. Aggregation properties of the sensor have been extensively studied and correlated with photophysical properties.
Article
Chemistry, Physical
Jessica Patel, Abhishek Sharma, Mihirsinh Chauhan, Md. Aatif, Nikita Vashistha, Mahesh Kumar, Brijesh Tripathi, Suresh Chand, J. P. Tiwari, Manoj Kumar Pandey
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2019)