Article
Chemistry, Physical
Wenzhe Xing, Hui Zhou, Jingjing Han, You Zhou, Ning Gan, Jing Cuan
Summary: By utilizing dye encapsulation engineering within a dual-emitting MOF hybrid, researchers have developed a high-quality white-light emitter that can emit light from blue to white to orange. This hybrid demonstrates excellent stability and optoelectronic performance, making it a promising material for applications in displays and solid-state lighting.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Mengyi Huang, Zhenxin Liang, Jinling Huang, Yuehong Wen, Qi-Long Zhu, Xintao Wu
Summary: In this work, two-dimensional (2D) MOFs were utilized as host matrices to simultaneously encapsulate red-green-blue fluorescent dyes for single-phase white light-emitting (SPWLE) materials. The flexible interlamellar space of 2D MOFs allows for easy introduction of different types and sizes of guest molecules, greatly expanding the range of available MOF hosts and guests and making the WLE more tunable. This strategy resolves the restriction of MOF pores on guest molecule size and opens a new avenue for the rational design and preparation of highly solution-processable SPWLE nanosheets.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Meiling Li, Guojian Ren, Weiting Yang, Yonghang Yang, Weikang Yang, Yan Gao, Pengfei Qiu, Qinhe Pan
Summary: HNU-49, a tetraphenylethylene-based MOF, exhibits interesting piezofluorochromic behavior and can successfully encapsulate Rhodamine B to emit dual-emission light. The combination of host-guest interaction and piezofluorochromism can precisely modulate luminescence to achieve near white-light emission.
CHEMICAL COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Stavroula Kampouri, Fatmah M. Ebrahim, Maria Fumanal, Makenzie Nord, Pascal A. Schouwink, Radwan Elzein, Rafik Addou, Gregory S. Herman, Berend Smit, Christopher P. Ireland, Kyriakos C. Stylianou
Summary: The photocatalytic performance of MOF-based systems can be enhanced through the construction of MOF/MOF heterojunctions. The MIL-167/MIL-125-NH2 heterojunction exhibits efficient photocatalytic H2 production under visible-light irradiation without the need for any cocatalysts.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Environmental
Xin Jiang, Ruiqing Fan, Jian Zhang, Xikui Fang, Tiancheng Sun, Ke Zhu, Xuesong Zhou, Yidong Xu, Yulin Yang
Summary: The study demonstrates the assembly of ZIF-8-on-In-dpda heterostructures on a fluorescent MOF core through epitaxial growth strategy, leading to the construction of a highly sensitive fluorescence sensor with potential applications in food safety monitoring. Additionally, diverse luminescent colors including white light emission are achieved by sequentially encapsulating multiple guest molecules in the ZIF-8-on-In-dpda composite.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Ruijing Fu, Wenya Zhao, Lingrui Wang, Zhiwei Ma, Guanjun Xiao, Bo Zou
Summary: By high-pressure processing, emission enhancement and non-doping control of color temperature can be achieved in two-dimensional perovskite nanocrystals.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Gang Li, Lang Peng, Bin Wu, Zun Xi, Aparna Kushwaha, Devyani Srivastava, Abhinav Kumar, Mohd. Muddassir, Jun-Cheng Jin
Summary: A new 3D Zn(II)-based metal-organic framework [(CH3)2NH2]2[Zn5(TTC)4] was synthesized and characterized. The framework showed promising potential as a photocatalyst for the degradation of model dyes. The photocatalytic mechanism of MB dye in the presence of the framework was established through trapping experiments and density of states (DOS) calculations.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Inorganic & Nuclear
Nilanjan Seal, Ranadip Goswami, Manpreet Singh, Renjith S. Pillai, Subhadip Neogi
Summary: The study presents a non-penetrated framework CSMCRI-4 for highly efficient luminescent sensing of harmful organo-aromatics. The metal-organic framework demonstrates exceptional selectivity and rapid sensing capabilities towards lethal pesticides and antibiotics, with significant quenching effects and low detection limits. The host-guest interaction between the framework and molecules triggers the fluorescence switching on-off process.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Multidisciplinary
Qiufen Liu, Xuelei Chen, Jiahao Wu, Liming Zhang, Guanjie He, Shouqin Tian, Xiujian Zhao
Summary: In this paper, amorphous ZIF-8 was modified with carboxyl functional groups (H3BTC-ZIF-8) to load organic fluorescent dyes (R6G and C151) and prepare R6G/C151/H3BTC-ZIF-8 composite films. The enhanced fluorescence properties were attributed to the increased interactions between the dyes and H3BTC-ZIF-8, which reduced the ACQ effect and resulted in a white-light-emitting composite film with high photoluminescence quantum yield (PLQY). This strategy provides guidance for the development of white-light-emissive materials.
Article
Chemistry, Physical
Magdeline Tze Leng Lai, Kian Mun Lee, Thomas Chung Kuang Yang, Chin Wei Lai, Chia-Yun Chen, Mohd Rafie Johan, Joon Ching Juan
Summary: The construction of a p-n heterojunction photocatalyst successfully overcomes the low photo-catalytic activity caused by rapid charge recombination and limited photo-response range. In this study, an interlayer of expanded MoS2 coupled with Bi2WO6 (BW-IEM) photocatalyst was synthesized, achieving a Methylene Blue (MB) removal rate of up to 97% (5.18 x10-2 min-1) under the irradiation of low power 1W LED white light. The outstanding photocatalytic performance of the p-n heterojunctions BW-IEM photocatalyst is attributed to the enhancement of light harvesting, improvement in the separation of charge carriers, and coexistence of oxygen vacancy. The main reactive oxygen species (ROS) responsible for the photo-degradation of MB were center dot Oz radicals and center dot OH. This work provides a new strategy for the potential IEM photocatalyst as a matrix in a p-n heterojunction composite.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Xuewei Wang, LingFeng Zhu, Zhouwei Lv, Zhulin Qi, Yun Xu, Tifang Miao, Xianliang Fu, Longfeng Li
Summary: Coupling photocatalytic reactions is a promising strategy in the field of photocatalysis. In this study, three MOFs based on TCPP were synthesized and characterized. Among these MOFs, Zr-Ni PMOF showed excellent performance in hydrogen generation, selective oxidation, and CO2 reduction. These findings provide essential insights for the design and development of efficient MOFs-based photocatalytic systems.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Jianping Tang, Zhenxin Liang, Mengyi Huang, Shaodong Su, Yuehong Wen, Qi-Long Zhu, Xintao Wu
Summary: The study introduces a novel strategy combining in situ guest-introduction and instant in situ exfoliation method to rapidly construct WLE MOF composite nanosheets with large lateral dimensions, allowing for fine tuning of white light by adjusting guest molecule content, resulting in a color-rendering index of 92. The combined bottom-up and top-down strategy facilitates the design and preparation of functional guest@2D MOF composite nanosheets with high efficiency and green synthesis.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Materials Science, Multidisciplinary
Yang Yang, Wenliang Li, Chunyi Sun, Guogang Shan, Chao Qin, Kuizhan Shao, Jianguo Wang, Zhongmin Su
Summary: This study proposes a strategy for achieving high-performance white light-emitting diodes (WLEDs) by encapsulating aggregation-induced emission luminogens (AIEgens) into the pores of a metal-organic framework (MOF). The optimized WLE material and resulting WLED demonstrate excellent performance.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Physical
Xia Xin, Ting Ling, Lei Ye, Xingdong Xu
Summary: The article discusses the regulation of white light emission in a solution by adjusting the concentration of alkynylpyrene derivative 1 and dye rhodamine-B (RhB), as well as the ratio of mixed solvents. The results showed the achievement of white light emission with specific concentrations in a certain solvent blend. Various methods were used to observe the morphologies and fluorescence properties of the white-light solution, exploring the self-assembly process and mechanism, with the potential application in new luminescent materials.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Inorganic & Nuclear
Sachin Kulkarni, Raj Laxmi, A. V. Anupama, Jayadev Pattar, Mahipal Ranot
Summary: Heterophasic BiVO4 nanoparticles with nitrogen and carbon shell structure were synthesized using glycine as the fuel through a simple and energy-efficient solution combustion route. The nanophotocatalyst exhibited rapid and highly efficient dye degradation of aqueous methylene blue under visible light irradiation, thanks to the synergetic combination of nitrogen-containing carbon coating and the novel heterostructure. The nanophotocatalyst also demonstrated high chemical stability and reusability for dye degradation.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Parul Verma, Faruk Ahamed Rahimi, Debabrata Samanta, Arup Kundu, Jyotishman Dasgupta, Tapas Kumar Maji
Summary: The self-assembly of a low-molecular weight gelator (LMWG) based on a porphyrin core connected to four terpyridine units (TPY-POR) has been demonstrated, which forms a coordination polymer gel (CPG) with Ru-II ions. The Ru-TPY-POR CPG exhibits efficient CO2 photoreduction, with a high selectivity for CO and CH4 using different sacrificial electron donors.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Nanoscience & Nanotechnology
Sanchita Karmakar, Adrija Ghosh, Faruk Ahamed Rahimi, Bhawna Rawat, Tapas Kumar Maji
Summary: Extensive research has been conducted in recent years on the successful preparation of highly sensitive nanoscale luminescent thermometers. A unique design and easy synthesis method have been used to create Zr-ctpy-NMOF@TbxEuy compounds, which can detect temperature changes with high sensitivity. Additionally, temperature-modulated multispectrum chromism has been achieved.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Parul Verma, Debabrata Samanta, Papri Sutar, Arup Kundu, Jyotishman Dasgupta, Tapas Kumar Maji
Summary: Self-assembled porphyrin-based coordination polymer gel has been developed as a soft photocatalyst material for hydrogen production from water under visible light, showing a significant enhancement in catalytic activity through the coassembly of a cocatalyst [Fe2(bdt)(CO)6]. The study supported a cascade electron transfer process for H2 production.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Chemistry, Multidisciplinary
Ritesh Haldar, Adrija Ghosh, Tapas Kumar Maji
Summary: Metal-organic frameworks (MOFs) are a novel class of crystalline porous material with tailorable porous structure. MOFs have advantageous spatial geometry for optoelectronic functions and can be used in solar cells, light-emitting diodes, and photocatalysts. This feature article evaluates the scope of charge transfer (CT) interactions in MOFs and provides insights for designing efficient CT processes. Examples of MOFs with CT characteristics not only illustrate design principles but also contribute to understanding photophysical processes and future optoelectronic and catalytic applications.
CHEMICAL COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Rohan Jena, Sohini Bhattacharyya, Neha Bothra, Varchaswal Kashyap, Swapan K. K. Pati, Tapas Kumar Maji
Summary: In this study, bimetallic Ni x Co1-x nanoparticles and core-shell Ni(x)Co(1-x)@Ni x Co1-x O nanoparticles stabilized on N-doped carbon nanotubes were prepared and characterized. The electrocatalyst exhibited excellent performance in oxygen evolution reaction, oxygen reduction reaction, and hydrogen evolution reaction. The structure of Ni x Co1-x @Ni x Co1-x O/NCNT was found to be crucial for its electrochemical activity.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Editorial Material
Nanoscience & Nanotechnology
Tapas Kumar Maji
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Faruk Ahamed Rahimi, Subarna Dey, Parul Verma, Tapas Kumar Maji
Summary: One of the major challenges in photocatalytic CO2 reduction is achieving control over the selective formation of a single product while maintaining a high conversion efficiency. In this study, a conjugated microporous polymer (TEB-BPY) was synthesized and characterized, and it was found that Re@TEB-BPY exhibited high photocatalytic activity for CO2 reduction to CO or CH4. The presence of triethylamine (TEA) or 1-benzyl-1,4-dihydronicotinamide (BNAH) as sacrificial electron donors influenced the selectivity of the products.
Article
Chemistry, Physical
Sandip Biswas, Anupam Dey, Faruk Ahamed Rahimi, Soumitra Barman, Tapas Kumar Maji
Summary: Conversion of CO2 into solar fuels via artificial photosynthesis is a promising and sustainable approach. COFs with tunable band gaps can serve as unique photocatalysts for CO2 conversion. In this work, a 2D COF (TTA-Tz) composed of TTA and lytic CO2 reduction is developed for efficient photocatalytic reduction of CO2 to CO.
Article
Nanoscience & Nanotechnology
Sneha Raj V. Parambil, Sanchita Karmakar, Faruk Ahamed Rahimi, Tapas Kumar Maji
Summary: Exploration of different chemical systems for photocatalytic CO2 reduction by using sunlight en route to the achievement of artificial photosynthesis. A single integrated system named Zr-MBA-Ru/Mn-MOF for the CO2 reduction reaction (CO2RR) was developed. The catalyst exhibited high activity for CO2-to-CO conversion in the aqueous medium without any additional holescavenger.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Multidisciplinary Sciences
Sanchita Karmakar, Soumitra Barman, Faruk Ahamed Rahimi, Darsi Rambabu, Sukhendu Nath, Tapas Kumar Maji
Summary: Researchers achieved selective conversion of CO2 to CH4 under visible light by post-synthetically grafting 1-pyrenebutyric acid in defect-engineered Zr-based metal organic framework and incorporating methyl viologen as a donor-acceptor complex, enabling visible-light-driven CO2 reduction reaction for CH4 production.
NATURE COMMUNICATIONS
(2023)
Review
Chemistry, Physical
Anupam Dey, Faruk Ahamed Rahimi, Parul Verma, Sneha Suresh, Tapas Kumar Maji
Summary: Developing a suitable photocatalyst for artificial photosynthesis is a challenging task in contemporary research on energy and environment. This study reports the photocatalytic CO2 reduction in aqueous medium under visible light using a conducting Zn(II) MOF, Zn-TTF-MOF, which is synthesized using a redox active tetrathiafulvalene tetracarboxylate linker. The Zn-TTF-MOF exhibits efficient charge separation and enables the production of CO with high selectivity, under visible light, without the need for additional sacrificial electron donor or cocatalyst.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Anupam Dey, Faruk Ahamed Rahimi, Soumitra Barman, Arpan Hazra, Tapas Kumar Maji
Summary: An imine-based 3D covalent organic framework was developed as a photocatalyst for CO2 reduction. It has low cost, tunable band gap, and high selectivity, making it a promising metal-free photocatalyst for visible light-driven CO2 reduction reaction. The framework showed good CO2 uptake and enabled the production of CO with high selectivity.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Sanchita Karmakar, Soumitra Barman, Faruk Ahamed Rahimi, Sandip Biswas, Sukhendu Nath, Tapas Kumar Maji
Summary: Researchers have developed [Ru(bpy)(2)](2+)-grafted UiO-66-bpydc Ce-MOF for visible light-driven C-C bond formation to selectively produce C2-based liquid fuel from CO2. The fast electron transfer and the accommodation of two CO2 molecules in the proximal defect-site contribute to facile C-C bond formation, resulting in the production of acetic acid with high selectivity in water.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Rohan Jena, Subhajit Laha, Nimish Dwarkanath, Arpan Hazra, Ritesh Haldar, Sundaram Balasubramanian, Tapas Kumar Maji
Summary: Porous, supramolecular structures can selectively encapsulate guest molecules by exploiting differences in noncovalent interactions. The encapsulation preferences are influenced by the geometry and chemical nature of the guest molecules. Designing a host with chemical specificity requires an accessible and complementary recognition site. However, in the case of a supramolecular, porous coordination polymer (PCP), the selectivity for a haloaromatic isomer is not only based on geometry and shape, but also on the chemical nature of the guest, without relying on a complementary recognition site.
Article
Chemistry, Physical
Vasudeva Rao Bakuru, Kashifa Fazl-Ur-Rahman, Ganga Periyasamy, Bharath Velaga, Nageswara Rao Peela, Marilyn Esclance DMello, Kempanna S. Kanakikodi, Sanjeev P. Maradur, Tapas Kumar Maji, Suresh Babu Kalidindi
Summary: Selective hydrogenation of alkynes into alkenes using non-precious metal catalysts under continuous flow conditions is a significant development for the chemical industry. In this study, a catalyst with rare combination of high styrene selectivity and full phenylacetylene conversion was designed by dissolving carbon into nickel lattices. The catalyst exhibited stable performance and regenerability for multiple cycles.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
