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  1. Article: Synthesis of Solar Light Active Reduced Graphene Oxide-ZnS Nanomaterial for Photocatalytic Degradation and Antibacterial Applications.

    Sathya Priya, B / Aruchamy, Kanakaraj / Oh, Tae Hwan / Avula, Balakrishna / Hasan, Imran / Shanthi, M

    Micromachines

    2023  Volume 14, Issue 7

    Abstract: Good water quality is essential for life; therefore, decolorizing and detoxifying organic dye wastes (textile effluents) have gained immense environmental importance in recent years. Thus, the degradation of wastewater has become a potential need for our ...

    Abstract Good water quality is essential for life; therefore, decolorizing and detoxifying organic dye wastes (textile effluents) have gained immense environmental importance in recent years. Thus, the degradation of wastewater has become a potential need for our environment. This research aims to synthesize and investigate a ceramic-based nanomaterial catalyst for the degradation of dye solution under exposure to sunlight. A reduced graphene oxide-ZnS (rGO-ZnS) nanomaterial was qualitatively synthesized using a solvothermal method. The prepared nanomaterial was characterized using XRD, SEM, HR-TEM, EDX, XPS, and FT-IR techniques. The photocatalytic activity of the rGO-ZnS nanomaterial was checked using oxidative photocatalytic degradation of naphthol blue black dye (NBB) under direct sunlight irradiation. Here, the rGO/ZnS composite showed a significant photocatalytic performance to degraded NBB (93.7%) under direct solar light. Chemical Oxygen Demand (COD) measurements confirmed the mineralization of the dye. The influence of different radical scavengers on NBB degradation was studied. Optimum conditions for efficient degradation were determined. The antibacterial property of the prepared catalyst was studied.
    Language English
    Publishing date 2023-06-28
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2620864-7
    ISSN 2072-666X
    ISSN 2072-666X
    DOI 10.3390/mi14071324
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Highly Efficient Solar-Light-Active Ag-Decorated g-C

    Kumaravel, Sakthivel / Chandrasatheesh, Chandramoorthy / Palanisamy, Govindasamy / Lee, Jintae / Hasan, Imran / Kumaravel, Saranraj / Avula, Balakrishna / Pongiya, Uma Devi / Balu, Krishnakumar

    Micromachines

    2023  Volume 14, Issue 7

    Abstract: In this study, we utilized calcination and simple impregnation methods to successfully fabricate bare g- ... ...

    Abstract In this study, we utilized calcination and simple impregnation methods to successfully fabricate bare g-C
    Language English
    Publishing date 2023-07-20
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2620864-7
    ISSN 2072-666X
    ISSN 2072-666X
    DOI 10.3390/mi14071454
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Fabrication of Bi

    Balu, Krishnakumar / Avula, Balakrishna / Durai, Mani / Kumaravel, Sakthivel / Chicardi, Ernesto / Sepúlveda, Ranier / Erusappan, Elangovan / Hasan, Imran / Ahn, Young-Ho

    Langmuir : the ACS journal of surfaces and colloids

    2023  Volume 39, Issue 42, Page(s) 15055–15066

    Abstract: Compositional and structural elucidation of the materials is important to know their properties, chemical stability, and electro-photoactivity. The heterojunction electrocatalyst and photocatalyst activity could open a new window for solving the most ... ...

    Abstract Compositional and structural elucidation of the materials is important to know their properties, chemical stability, and electro-photoactivity. The heterojunction electrocatalyst and photocatalyst activity could open a new window for solving the most urgent environmental and energy problems. Here, for the first time, we have designed and fabricated Bi
    Language English
    Publishing date 2023-10-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2005937-1
    ISSN 1520-5827 ; 0743-7463
    ISSN (online) 1520-5827
    ISSN 0743-7463
    DOI 10.1021/acs.langmuir.3c02031
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Rational construction of MOF derived α-Fe

    Kumaravel, Sakthivel / Avula, Balakrishna / Chandrasatheesh, Chandramoorthy / Niyitanga, Theophile / Saranya, Rajasekar / Hasan, Imran / Abisheik, T / Rai, Rajakumar S / Pandiyan, V / Balu, Krishnakumar

    Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

    2024  Volume 310, Page(s) 123972

    Abstract: In recent years, researchers have been actively investigating metal oxide-based materials with narrow bandgaps due to their potential applications toward wastewater treatment and oxygen evolution reactions (OER). In this study, we successfully ... ...

    Abstract In recent years, researchers have been actively investigating metal oxide-based materials with narrow bandgaps due to their potential applications toward wastewater treatment and oxygen evolution reactions (OER). In this study, we successfully synthesized g-C
    Language English
    Publishing date 2024-02-01
    Publishing country England
    Document type Journal Article
    ZDB-ID 210413-1
    ISSN 1873-3557 ; 0370-8322 ; 0584-8539 ; 1386-1425
    ISSN (online) 1873-3557
    ISSN 0370-8322 ; 0584-8539 ; 1386-1425
    DOI 10.1016/j.saa.2024.123972
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Meglumine as a green, efficient and reusable catalyst for synthesis and molecular docking studies of bis(indolyl)methanes as antioxidant agents.

    Nemallapudi, Bakthavatchala Reddy / Zyryanov, Grigory V / Avula, Balakrishna / Guda, Mallikarjuna Reddy / Cirandur, Suresh Reddy / Venkataramaiah, Chintha / Rajendra, Wudayagiri / Gundala, Sravya

    Bioorganic chemistry

    2019  Volume 87, Page(s) 465–473

    Abstract: An efficient and convenient Meglumine catalyzed procedure for the synthesis of bis(indolyl) methanes at ambient temperature under aqueous conditions in high yields. The catalytic reaction proceeds very smoothly. Clean reaction, ease of product isolation/ ... ...

    Abstract An efficient and convenient Meglumine catalyzed procedure for the synthesis of bis(indolyl) methanes at ambient temperature under aqueous conditions in high yields. The catalytic reaction proceeds very smoothly. Clean reaction, ease of product isolation/purification, easily available reactants, metal free and environmentally friendly reaction conditions are the notable advantages of the present methodology. All the entitled compounds were characterized by IR,
    MeSH term(s) Antioxidants/chemical synthesis ; Antioxidants/chemistry ; Antioxidants/pharmacology ; Benzothiazoles/antagonists & inhibitors ; Catalysis ; Dose-Response Relationship, Drug ; Humans ; Hydrogen Peroxide/antagonists & inhibitors ; Indoles/chemistry ; Indoles/pharmacology ; Meglumine/chemistry ; Methane/analogs & derivatives ; Methane/chemistry ; Methane/pharmacology ; Molecular Docking Simulation ; Molecular Structure ; Nitric Oxide/antagonists & inhibitors ; Structure-Activity Relationship ; Sulfonic Acids/antagonists & inhibitors
    Chemical Substances Antioxidants ; Benzothiazoles ; Indoles ; Sulfonic Acids ; 2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid (28752-68-3) ; Nitric Oxide (31C4KY9ESH) ; Meglumine (6HG8UB2MUY) ; Hydrogen Peroxide (BBX060AN9V) ; Methane (OP0UW79H66)
    Language English
    Publishing date 2019-03-04
    Publishing country United States
    Document type Journal Article
    ZDB-ID 120080-x
    ISSN 1090-2120 ; 0045-2068
    ISSN (online) 1090-2120
    ISSN 0045-2068
    DOI 10.1016/j.bioorg.2019.03.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Removal of hydrogen sulfide generated during anaerobic treatment of sulfate-laden wastewater using biochar: Evaluation of efficiency and mechanisms

    Kanjanarong, Jarupat / Avula Balakrishna / Balendu S. Giri / Deb P. Jaisi / Fernanda R. Oliveira / Piyarat Boonsawang / R.S. Singh / Samir Kumar Khanal / Sumate Chaiprapat

    Bioresource technology. 2017 June, v. 234

    2017  

    Abstract: Removal of hydrogen sulfide (H2S) from biogas was investigated in a biochar column integrated with a bench-scale continuous-stirred tank reactor (CSTR) treating sulfate-laden wastewater. Synthetic wastewater containing sulfate concentrations of 200– ... ...

    Abstract Removal of hydrogen sulfide (H2S) from biogas was investigated in a biochar column integrated with a bench-scale continuous-stirred tank reactor (CSTR) treating sulfate-laden wastewater. Synthetic wastewater containing sulfate concentrations of 200–2000mg SO42-/L was used as substrate, and the CSTR was operated at an organic loading rate of 1.5g chemical oxygen demand (COD)/L·day and a hydraulic retention time (HRT) of 20days. The biochar was able to remove about 98.0 (±1.2)% of H2S for the ranges of concentrations from 105–1020ppmv, especially at high moisture content (80–85%). Very high H2S adsorption capacity (up to 273.2±1.9mg H2S/g) of biochar is expected to enhance the H2S oxidation into S0 and sulfate. These findings bring a potentially novel application of sulfur-rich biochar as a source of sulfur, an essential but often deficient micro-nutrient in soils.
    Keywords adsorption ; biochar ; biogas ; chemical oxygen demand ; hydrogen sulfide ; oxidation ; soil ; sulfates ; sulfur ; wastewater ; water content
    Language English
    Dates of publication 2017-06
    Size p. 115-121.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 1065195-0
    ISSN 1873-2976 ; 0960-8524
    ISSN (online) 1873-2976
    ISSN 0960-8524
    DOI 10.1016/j.biortech.2017.03.009
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: 5,10,15,20-Tetrakis(4-acetyloxyphenyl)porphyrin including an unknown solvate

    Micael D. Miranda / Manuela Ramos Silva / Teresa M. R. Maria / Avula Balakrishna / Abilio J. F. N. Sobral

    Acta Crystallographica Section E, Vol 68, Iss 12, Pp o3462-o

    2012  Volume 3463

    Abstract: Molecules of the title compound, C52H38N4O8, are located on an inversion center so that the asymmetric cell contains one half of the molecule. The macrocycle exhibits a ruffled conformation with a maximum deviation of 0.16 Å for the 24 macrocycle atoms: ... ...

    Abstract Molecules of the title compound, C52H38N4O8, are located on an inversion center so that the asymmetric cell contains one half of the molecule. The macrocycle exhibits a ruffled conformation with a maximum deviation of 0.16 Å for the 24 macrocycle atoms: the dihedral angle between adjacent five-membered rings is 5.13 (19)°. The benzene rings are rotated by 70.25 (19)° with respect to their adjacent protonated five-membered rings, and by 65.56 (19)° with respect to the unprotonated rings. The porphyrin conformation is supported by bifurcated N—H.(N,N) hydrogen bonds. The structure contained poorly resolved solvent molecules in voids of volume 217 Å3 per unit cell. The latter were treated using the SQUEEZE routine in PLATON [Spek (2009). Acta Cryst. D65, 148–155]. As the solvent could not be identified exactly, it was not included in the calculation of the overall formula weight, density and absorption coefficient.
    Keywords Chemistry ; QD1-999
    Subject code 500
    Language English
    Publishing date 2012-12-01T00:00:00Z
    Publisher International Union of Crystallography
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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