Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Ashok Kumar Chakraborty"'
Autor:
Aklima A Akhi, Abid Hasan, Nakshi Saha, Sabbir Howlader, Sabonty Bhattacharjee, Kamol Dey, A. K. M. Atique Ullah, Farhana Rumzum Bhuiyan, Ashok Kumar Chakraborty, Umme Sarmeen Akhtar, Md. Aftab Ali Shaikh, Benu Kumar Dey, Samiran Bhattacharjee, Sumon Ganguli
Publikováno v:
ACS Omega, Vol 9, Iss 4, Pp 4324-4338 (2024)
Externí odkaz:
https://doaj.org/article/15487debc7a44429aaae8667cd8ddb78
Autor:
Ashok Kumar Chakraborty, S.M. Abdur Razzaque, Md Ahsanul Haque, Afroza Akter, Sumon Ganguli, Md. Nazrul Islam, Alam S.M. Nur, Md Abdus Sabur
Publikováno v:
Chemistry of Inorganic Materials, Vol 1, Iss , Pp 100019- (2023)
Discharge of unused and untreated dye effluents into the environment by the textile industries is a major issue. In this wastewater, the methylene blue (MB) and methyl orange (MO) remain in a dissolved state along with various pollutants at different
Externí odkaz:
https://doaj.org/article/273ea117618f4ebab757e2527ed94d9b
Autor:
Atol Mondal, Sumon Islam, SK. Methela Zaman, Marzia Sultana, Md. Minhaz Abedin, Ashok Kumar Chakraborty, Md Mahfuzur Rahman, Md. Hafezur Rahaman, Mst Sumaia Aktar Sumi, Alam S.M. Nur
Publikováno v:
Next Materials, Vol 7, Iss , Pp 100392- (2025)
Research continues to improve the dye degradation performance of TiO2 nanoparticles (NPs) through doping, tailoring, or modifying the lattice structure. A series of Ca–TiO2 (Ca ions 0.5–2.0 wt%) photocatalysts prepared by wet impregnation method
Externí odkaz:
https://doaj.org/article/2db8a579cef54d9ab1ae62dca117aa4a
Autor:
Sumon Ganguli, Sabbir Howlader, A.K.M. Atique Ullah, Farhana Rumzum Bhuiyan, Aklima A. Akhi, Abid Hasan, Kamol Dey, Saiful Islam, Ferdousi Ali, Ashok Kumar Chakraborty, Samiran Bhattacharjee, Benu Kumar Dey
Publikováno v:
Heliyon, Vol 9, Iss 5, Pp e16072- (2023)
In this work, the aqueous leaf extracts of three Ophiorrhiza genus species, namely Ophiorrhiza mungos (Om), Ophiorrhiza harrisiana (Oh) and Ophiorrhiza rugosa (Or), have been used as the reducing and capping agents to control the size of AgNPs, Om-Ag
Externí odkaz:
https://doaj.org/article/981c94cd1fa3489086c438631b495e6f
Autor:
Marzia Sultana, Atol Mondal, Sumon Islam, MOST. Afroza Khatun, Md. Hafezur Rahaman, Ashok Kumar Chakraborty, Md. Shahedur Rahman, Md Mahfuzur Rahman, Alam S.M. Nur
Publikováno v:
Current Research in Green and Sustainable Chemistry, Vol 7, Iss , Pp 100383- (2023)
This review article discusses the potential of using metal-doped TiO2 as a photocatalyst for dye degradation in water. TiO2 is a promising photocatalyst but is limited due to its fast electron-hole recombination rate and vast bandgap energy. Metal do
Externí odkaz:
https://doaj.org/article/a88c04c669724bc8abe9b6331677a630
Autor:
Afroza Akter, S.M. Abdur Razzaque, Md. Ahsanul Haque, Sumon Ganguli, Juliya Khanam, Alam S.M. Nur, Md. Abdus Sabur, Ashok Kumar Chakraborty
Publikováno v:
Results in Engineering, Vol 16, Iss , Pp 100672- (2022)
Visible-light (λ ≥ 420 nm) active fluorine (F) doped composite photocatalyst Co3O4/Co3O3.69F0.31 was prepared through substitution method. In this process, cobaltic oxide, Co3O4 was synthesized first; subsequently, F was introduced into Co3O4. The
Externí odkaz:
https://doaj.org/article/3fe6bacc176a4bf78452a9fa7cb52b34
Autor:
Md Ahsanul Haque, Md Mahbubur Rahman, Faridul Islam, Abu Bakar Sulong, Loh Kee Shyuan, Ros emilia Rosli, Ashok Kumar Chakraborty, Julfikar Haider
Publikováno v:
Energies, Vol 16, Iss 3, p 1537 (2023)
Sluggish oxygen reduction reaction (ORR) of electrodes is one of the main challenges in fuel cell systems. This study explored the kinetics of the ORR reaction mechanism, which enables us to understand clearly the electrochemical activity of the elec
Externí odkaz:
https://doaj.org/article/20603e63891f48df9e6c104b904462bb
Autor:
Ashiqur Rahman, Yern Chee Ching, Kuan Yong Ching, Nur Awanis, Ashok Kumar Chakraborty, Cheng Hock Chuah, Nai-Shang Liou
Publikováno v:
BioResources, Vol 10, Iss 4, Pp 7405-7418 (2015)
A photocatalytic fiber was prepared by modifying the surface of jute fiber with a Bi2O3/TiO2 composite. Maleic acid was used as an organic linker, and the coating process was conducted with heat-treatment at 240 °C. At first, the Bi2O3/TiO2 composit
Externí odkaz:
https://doaj.org/article/733f5657cc9b4f91924e53806e36b7bf
Autor:
Md Aktaruzzaman Sorid, Rashedul Islam, Md Takibul Azad, Sumon Ganguli, Ashok Kumar Chakraborty, Mahbub Kabir, Md Abdus Sabur
Concentrations of bicarbonate (HCO3-) are typically high in natural waters and can enhance internal phosphate (PO4) loading from sediment to the overlying water. However, chemical constituents at the sediment-water interface controlling bicarbonate-i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15d7450316261ca4438e5e13bd2b00d7
https://doi.org/10.21203/rs.3.rs-2833922/v1
https://doi.org/10.21203/rs.3.rs-2833922/v1
Publikováno v:
New Journal of Chemistry. 45:17617-17629
Covering the BiOCl/Bi3O4Cl composite with a monolayer of WO3 resulted in a significant increase in the photocatalytic activity of WO3/BiOCl/Bi3O4Cl in the presence of visible light (λ ≥ 420 nm). The decomposition of gaseous isopropyl alcohol (IPA)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0866b360081f272ba9de61dec3a9fc96
https://doi.org/10.1039/d1nj02825a
https://doi.org/10.1039/d1nj02825a