Article
Engineering, Chemical
F. Puga, J. A. Navio, M. C. Hidalgo
Summary: The coupling of AgBr with SnO2 significantly enhances the photocatalytic activity under both UV and visible illumination, showing conversion rates superior to pure AgBr and SnO2. This improvement is attributed to increased adsorption viability and efficient separation of photoinduced carriers due to the formation of a heterojunction.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Hideyuki Katsumata, Md Ashraful Islam Molla, Jahida Binte Islam, Ikki Tateishi, Mai Furukawa, Satoshi Kaneco
Summary: Researchers have successfully synthesized a ternary composite photocatalyst with high catalytic activity for the fast degradation of organic pollutants under visible light.
CERAMICS INTERNATIONAL
(2022)
Article
Environmental Sciences
Habiba Khiar, Fatima Zahra Janani, M'hamed Sadiq, Said Mansouri, Alberto Puga, Noureddine Barka
Summary: Indium (III)-doped Ag3PO4 catalysts (In-AgP) were prepared and characterized. The photocatalytic activity of the catalysts under visible light was investigated, and it was found that the indium-doped samples exhibited higher activity and selectivity towards methyl orange degradation. The catalyst also showed excellent recycling stability.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Inorganic & Nuclear
Nan Li, Guodong Fan, Miaomiao Fan, Fan Wu, Guoxian Zhang, Di Fan
Summary: The novel solid-state Z-scheme photocatalyst Ag3PO4/CSs/AgBr showed wide visible light absorption and superior photocatalytic performance. The carbon spheres (CSs) acted as charge carrier transfer bridge in constructing the all-solid-state Z-scheme photocatalyst, leading to significantly improved photocatalytic performance and stability. The possible photocatalytic reaction mechanism for Ag3PO4/CSs/AgBr involved photogenerated electrons with strong reduction abilities in the conduction band (CB) of AgBr and holes with strong oxidation abilities in the valence band (VB) of Ag3PO4.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Physical
Bin Sun, Furong Tao, Zixuan Huang, Wei Yan, Yuxin Zhang, Xusheng Dong, Yue Wu, Guowei Zhou
Summary: This study utilized MXene cocatalyst to bridge Ag/Ag3PO4, synthesized by electrostatic self-assembly method, demonstrating high visible-light-driven photocatalytic activity for environmental purification of organic pollutants and heavy metal ions. The addition of 3 wt% Ti3C2 in the Ag/Ag3PO4 /Ti3C2 hybrids achieved the best photocatalytic efficiency.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Sha Sha, Lei Zhang, Haijun Liu, Jingdi Chen, Yuju Che, Fanbing Zhang, Cui Song
Summary: A new type of Ag3PO4/AgBr/HAP composite with nanoscale rod-like structure was successfully prepared, showing excellent catalytic performance in degrading methylene blue. The appropriate ratio of silver content was found to improve catalytic efficiency, with the 1:1 composite exhibiting the best performance, degrading MB at a rate 15 times faster than Ag3PO4/AgBr alone. The main active species involved in the photocatalytic degradation process were O2- and h(+), and the synergistic catalysis of Ag3PO4, AgBr, and HAP promoted the degradation rate.
Article
Chemistry, Inorganic & Nuclear
Jie Chen, Haitao Yu, Ying Xie, Zhenzi Li, Wei Zhou
Summary: To enhance the photocatalytic performance of semiconductor catalysts, a new Z-scheme heterojunction was fabricated using Cd0.3Zn0.7S twin crystal and narrow band gap semiconductor Ag3PO4. The resulting Cd0.3Zn0.7S/1%Ag3PO4 photocatalyst exhibited excellent photocatalytic hydrogen production capability. This performance was attributed to the defective twin crystal structure of Cd0.3Zn0.7S and the well-matched Z-scheme interface between Cd0.3Zn0.7S and Ag3PO4, which promoted charge separation and prolonged carrier lifetime.
DALTON TRANSACTIONS
(2023)
Article
Materials Science, Multidisciplinary
Zhengdong Xu, Junbo Zhong, Minjiao Li, Hao Yang
Summary: In this study, AgBr/Ag3PO4 heterojunctions were prepared using a precipitation method assisted by 1methoxyethyl-3-methylimidazolium bromide salt ([MOEMIm]Br). The photocatalytic activity of the samples was evaluated by degrading rhodamine B (RhB) and tetracycline (TC). The results showed that the sample with a molar ratio of 8% AgBr/Ag3PO4 exhibited the best activity with visible light, with a degradation rate constant of RhB about 34 times higher than that on Ag3PO4.
Article
Environmental Sciences
Seyyedeh Atefeh Mirsalari, Alireza Nezamzadeh-Ejhieh
Summary: The ternary CdS/AgBr/Ag3PO4 coupled system shows efficient absorption of visible light photons with low photoluminescence intensity and high photocatalytic activity. The photodegradation rate constant of MB is significantly higher than the mineralization rate constant.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Nachimuthu Venkatesh, Amirthalingam Mohankumar, Govindhasamy Murugadoss, Palanisamy Sundararaj, Ashraf Atef Hatamleh, Bassam Khalid Alnafisi, Manavalan Rajesh Kumar, Shaik Gouse Peera, Pachagounder Sakthivel
Summary: The development of hybrid graphitic carbon nitride (GCN) nanocomposites for waste-water treatment is a new research area. In this study, a visible light active photocatalyst of silver decorated polymeric graphitic carbon nitride and cerium oxide (Ag-GCN/CeO2) was prepared and characterized. The Ag-GCN/CeO2 photocatalyst was successfully synthesized using an electrostatic self-assembly approach. The Ag-GCN/CeO2 catalyst showed excellent photodegradation efficiency for Acid yellow-36 (AY-36) and Direct yellow-12 (DY-12) dye solutions under sunlight irradiation.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Chemical
Xiaorong Meng, Jing Ren, Jiazhi Chen, Jinfeng Song, Huiqi Zheng, Lei Wang, DanXi Huang
Summary: Ag3PO4 and AgBr-Ag3PO4 were deposited on the surface of nanofiltration membrane with tannic acid (TA) and toluene-2,4 diisocyanate (TDI) as functional layers to obtain composite NF membranes (FTA and FTAB) with visible catalytic activity. FTA and FTAB showed good photochemical properties, stable degradation rates for pollutants like SMZ, and anti-pollution self-cleaning performances.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Physical
Mei Liu, Lingcheng Zheng, Jiale Deng, Juan Gao, Kangrui Su, Xile Sheng, Jie He, Deqiang Feng, Lei Guo, Changzhao Chen, Yang Li
Summary: In this study, Ag nanoparticles decorated AgBr/BiVO4 shell/core heterojunction was synthesized and exhibited high photocatalytic activity in removing contaminants under visible-light irradiation. The enhanced photocatalytic performance can be attributed to the spatial separation of photogenerated carriers and inhibition of bulk recombination by AgBr/BiVO4 shell/core heterojunction. The localized surface plasmon resonance effect of Ag particles also improved the light absorption ability of the photocatalyst.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Yandong Duan, Xuewang Zhu, Qingzhi Luo, Lin Wang, Zhen Li, Desong Wang
Summary: The research successfully fabricated melt-treated AgBr with high photocatalytic activity and stability. By reducing unstable silver ions and surface reconstruction, the stability of AgBr was significantly improved.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Physical
Qinqing Wang, Shuting Ji, Suyun Li, Xueqing Zhou, Junhui Yin, Pei Liu, Wenyan Shi, Minghong Wu, Longxiang Shen
Summary: The study successfully prepared Bi2MoO6/Ag3PO4 composites and Bi2MoO6/Ag3PO4@silk fibroin films, demonstrating their superior photocatalytic activity and antibacterial performance.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
F. Puga, J. A. Navio, M. A. Paulete-Romero, J. M. Cordoba, M. C. Hidalgo
Summary: The study demonstrates that coupling TiO2 with high {001} facet exposure with AgBr or Ag3PO4 significantly enhances photocatalytic activity, especially under visible light. The combination of AgBr and TiO2 shows a synergistic effect in the visible light, leading to positive impacts on photocatalytic degradation.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2022)
Article
Microbiology
Simranjeet Singh, Vijay Kumar, Amith G. Anil, Romina Romero, Praveen C. Ramamurthy, Joginder Singh
Summary: The study isolated and developed two bacterial strains capable of degrading Phorate in aqueous solutions, with PR2 showing a higher degradation efficiency compared to PR1.
JOURNAL OF BASIC MICROBIOLOGY
(2022)
Article
Environmental Sciences
Simranjeet Singh, Sutripto Khasnabis, Amith G. Anil, Vijay Kumar, T. S. Sunil Kumar Naik, Bidisha Nath, Vinod Kumar Garg, Joginder Singh, Praveen C. Ramamurthy
Summary: A multifunctional nanohybrid was synthesized for the adsorption and detection of As(III) using a solvothermal approach, showing high adsorption capacity and efficient removal of As(III) due to its large surface area. The nanocomposite also demonstrated potential as a sensor for As(III) detection.
Article
Environmental Sciences
Simranjeet Singh, Amith G. Anil, Vijay Kumar, Dhriti Kapoor, S. Subramanian, Joginder Singh, Praveen C. Ramamurthy
Summary: Nitrate pollution is a growing concern, impacting both organisms and human health. Sensing nitrate is an effective way to monitor nitrate distribution in water bodies. Estimating nitrate contamination from different sources and using various techniques for nitrate removal can effectively improve environmental quality.
Review
Chemistry, Multidisciplinary
Vaishali Dhaka, Simranjeet Singh, Amith G. Anil, T. S. Sunil Kumar Naik, Shashank Garg, Jastin Samuel, Manoj Kumar, Praveen C. Ramamurthy, Joginder Singh
Summary: Polyethylene terephthalate is a common plastic used in various products. However, there is growing concern about its pollution and toxicity, leading to detailed studies on its properties, occurrence, toxicity, remediation, and analysis.
ENVIRONMENTAL CHEMISTRY LETTERS
(2022)
Article
Environmental Sciences
Simranjeet Singh, Amith G. Anil, Sutripto Khasnabis, Vijay Kumar, Bidisha Nath, Varun Adiga, T. S. Sunil Kumar Naik, S. Subramanian, Vineet Kumar, Joginder Singh, Praveen C. Ramamurthy
Summary: In this study, ZnO-GO nanohybrid was synthesized through a solvothermal process for the removal of hexavalent chromium from aqueous solutions. The nanocomposite showed excellent adsorption capacity for Cr(VI) at near-neutral pH levels, following Langmuir isotherm and pseudo 2nd order kinetics model.
ENVIRONMENTAL RESEARCH
(2022)
Article
Electrochemistry
T. S. Sunil Kumar Naik, B. E. Kumara Swamy, Simranjeet Singh, Joginder Singh, E. Indrajith Naik, G. K. Jayaprakash, Praveen C. Ramamurthy
Summary: A novel electrochemical sensor based on sodium alpha-olefin sulfonate was developed for real-time monitoring of adrenaline and paracetamol in aqueous solutions. The sensor showed selective and efficient detection of the target analytes with lower detection limits. Surface characterization and operational conditions were investigated to optimize the sensor performance.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2022)
Article
Polymer Science
Pritom J. Bora, Bibhusita Mahanta, Kishore, Praveen C. Ramamurthy
Summary: This work reveals the efficient microwave absorption characteristics of conducting polymer incorporated fly ash cenosphere, showing that optimizing the loading of conducting polymer and fly ash cenosphere in polymer can result in significant improvement in absorption performance. The data-driven methodology offers a proof of concept for obtaining broadband and robust microwave absorption characteristics of polymer-FAC composites.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Microbiology
Amith G. Anil, Sukanya Ramachandran, Vineet Kumar, Sankaran Subramanian, Praveen C. Ramamurthy
Summary: Functionalized carbon dots (CDs) derived from Citrobacter freundii bacterial cells were used for selective detection of Cr(VI) with high stability. The synthesized CF-CDs exhibit a strong, specific interaction towards Cr(VI) due to their inherent functionalization. The dual linear response range of the fabricated sensor and its ability to distinguish between Cr(VI) and Cr(III) make it highly desirable for practical applications.
JOURNAL OF BASIC MICROBIOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Sutripto Khasnabis, Meghana H. S. Jois, Pritom Jyoti Bora, Praveen C. Ramamurthy
Summary: This study investigates the potential of cowdung-derived activated carbon for microwave absorption, utilizing physical and chemical activation methods. Through various characterizations, the porous carbon structures were evaluated, showing promising microwave absorption properties under certain conditions.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Electrochemistry
Israel Leka Lera, Sutripto Khasnabis, Lodrick Makokha Wangatia, Olu Emmanuel Femi, Praveen C. Ramamurthy
Summary: This study synthesized novel support materials PT/rGO and PEDOT:PSS/rGO to enhance the electrocatalytic performance of NiP, showing significant performance improvement, especially when NiP dispersed on the surface of PEDOT:PSS/rGO (PH4083). The NiP@PEDOT:PSS/rGO material exhibited high current density, low onset potential, and high stability, making it a promising anode electrocatalyst material for alkaline urea electrooxidation in direct urea fuel cell (DUFC).
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
T. S. Sunil Kumar Naik, Amith G. Anil, B. E. Kumara Swamy, Simranjeet Singh, V. Madhavi, S. M. Raghavendra, Praveen C. Ramamurthy
Summary: A novel electrochemical sensor based on BZPY was successfully fabricated and exhibited excellent catalytic behavior for the detection of BPA, with a low detection limit and good stability, selectivity, and reproducibility. The practical applicability of the sensor was tested using water samples, showing acceptable recovery rates.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Energy & Fuels
Raju Nandi, Pravin S. Pawar, KrishnaRao Eswar Neerugatti, Jae Yu Cho, Seongheon Kim, Seong Ho Cho, Yun Seog Lee, Jaeyeong Heo
Summary: The study reports the highest cell efficiency and short-circuit current density for α-SnSe thin-film solar cells grown via vapor-transport-deposition. It shows that the grain size and surface roughness greatly influence the shunt properties of the device, with significantly large shunt losses detected in cases of both small and extremely large grains.
Article
Chemistry, Physical
Pravin S. Pawar, Raju Nandi, KrishnaRao Eswar Neerugatti, Jae Yu Cho, Jaeyeong Heo
Summary: The study deposited Sb2S3 thin films on molybdenum using a hydrothermal approach and achieved higher power conversion efficiency through annealing to crystallize the films. The research also addressed the underlying reasons for the low efficiency of Sb2S3 TFSCs and provided a pathway for improving device performance in the future.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Raju Nandi, Pravin S. Pawar, Rahul K. Yadav, KrishnaRao Eswar Neerugatti, Indu Sharma, Yong Tae Kim, Jaeyeong Heo
Summary: Binary tin chalcogenides (SnS and SnSe) are extensively studied in the field of thin-film solar cells (TFSCs). This study presents a one-step procedure for synthesizing mixed-phase SnSxSe1-x thin films and investigates their performance in TFSCs. The S-rich SnSxSe1-x devices demonstrate superior Voc, while the Se-rich devices exhibit superior Jsc. The optimized SnS0.70Se0.30 absorber layer achieves a highest efficiency of 3.75%, outperforming pure SnS or SnSe devices.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Bidisha Nath, Sushant K. Behera, Jeykishan Kumar, Arnaud Hemmerle, Philippe Fontaine, Praveen C. Ramamurthy, Debiprosad Roy Mahapatra, Gopalkrishna Hegde
Summary: The surface passivation of oxide-based transport layers using octadecylphosphonic acid has been found to improve charge transport and recombination, resulting in enhanced performance of perovskite solar cells. This research contributes to the development of efficient halide perovskite solar cells by harnessing the favorable architecture of NiOx interfaces.
ADVANCED MATERIALS
(2023)
