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1

Irawati, Utami, Taufiqur Rohman, and Khairun Nisa. "Photocatalytic Degradation of Naphthol Blue Black Using TiO2-Chitosan Catalyst Under Solar Energy." Jurnal Berkala Ilmiah Sains dan Terapan Kimia 18, no. 2 (2025): 118. https://doi.org/10.20527/jstk.v18i2.21809.

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Naphthol blue black (NBB) is an aromatic azo compound that is potentially carcinogenic and mutagenic. An alternative method of dealing with dye waste is photocatalysis. Photocatalysis is a combination of photochemical processes with the use of catalysts. The purpose of this study is to obtain data on the ratio of TiO2: Chitosan, which produces composites with the best ability, irradiation time and optimum dose of TiO2, which is effective in the process of photodegradation of NBB. The process of NBB photodegradation by chitosan beads and composites and chitosan irradiated with the best irradiat
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2

Kusumawardani, Linda Jati, Yulian Syahputri, Apriansyah Apriansyah, and Muhammad Fathurrahman. "TiO2/Zeolite Coal Fly Ash Nanocomposite for Photodegradation of Naphthol Blue Black Dye: Optimization and Mechanism under Visible Light." Jurnal Kimia Valensi 11, no. 1 (2025): 92–104. https://doi.org/10.15408/jkv.v11i1.45036.

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Naphthol Blue Black (NBB) is a water-insoluble synthetic azo dye with a molecular weight of 616.49 g/mol that requires alkaline treatment for solubility and poses environmental risks by reducing water quality, increasing BOD and COD, and disrupting aquatic ecosystems. The TiO₂/Zeolite Fly Ash nanocomposite represents a promising material for the photocatalytic degradation of NBB. Analysis of the TiO2/zeolite fly ash nanocomposites revealed the presence of Ti-O-Si and Ti-O-Al functional groups, along with a suitable band gap energy value of 2.85 eV for visible light consumption. The average par
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3

Ruspita, Roza, Muhamad Fajar Muarif, Ade Irmadiki Agipa, Ayu Sabila Yulizar, Mareta Silpiana, and Fara Amalia. "Zeolite/Hydrilla verticillata Composite for the Adsorption of Naphthol Blue Black Dye." Jurnal Kimia Sains dan Aplikasi 28, no. 3 (2025): 122–29. https://doi.org/10.14710/jksa.28.3.122-129.

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In this study, a zeolite/Hydrilla verticillata composite adsorbent was prepared and characterized, and its performance was evaluated for the adsorption of Naphtol Blue Black (NBB) dye. Natural zeolite sourced from Bayah, Banten, was used as the base material. The composite was synthesized using the wet impregnation technique. Characterization was conducted using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). FTIR analysis showed absorption bands at 2919 cm-1, 514 cm- 1, and 1014 cm-1, indicating the successful formation of the z
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4

Alkhabbas, Manal, Alaa M. Al-Ma’abreh, Gada Edris, Tasneem Saleh, and Heba Alhmood. "Adsorption of Anionic and Cationic Dyes on Activated Carbon Prepared from Oak Cupules: Kinetics and Thermodynamics Studies." International Journal of Environmental Research and Public Health 20, no. 4 (2023): 3280. http://dx.doi.org/10.3390/ijerph20043280.

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In this study, activated carbon produced from oak cupules (ACOC) was prepared using chemical activation with H3PO4. ACOC is subsequently used as an adsorbent to facilitate the removal of an acidic dye, naphthol blue black (NBB), and basic dye crystal violet (CV) from aqueous solutions. The ACOC was characterized by FTIR spectroscopy, XRD, and SEM. The adsorption isotherm data fits well with the Langmuir model for NBB and CV. The kinetic models of adsorption of NBB and CV by ACOC were pseudo-first order and pseudo-second order, respectively. Thermodynamic parameters were evaluated and indicated
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5

T., Manikya Sastry, and Rama Krishna K. "Extraction-spectrophotometric determination of an ACE inhibitor with naphthol blue-black in formulations." Journal of Indian Chemical Society Vol. 97, No. 9b, Sep 2020 (2020): 1614–19. https://doi.org/10.5281/zenodo.5665308.

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Department of Chemistry, Gayatri Vidya Parishad College of Engineering (Autonomous), Madhurawada, Visakhapatnam-530 048, Andhra Pradesh, India Department of Chemistry, Institute of Science, GITAM (Deemed to be University), Visakhapatnam-530 045, Andhra Pradesh, India <em>E-mail:</em> tmsastry@yahoo.com <em>Manuscript received online 02 July 2020, accepted 22 August 2020</em> A new analytical method has been proposed for the assay and validation of ACE inhibitors in formulations. A bioactive com&shy;pound, perindopril erbumine (PPE), is selected for its assay in bulk and pharmaceutical formulat
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6

Silver, Jesisca, Surya Lubis, and Muliadi Ramli. "Green Synthesis, Characterization, and Photocatalytic Activity of Zinc Oxide Nanoparticles on Photodegradation of Naphthol Blue Black Dye." Jurnal Kimia Sains dan Aplikasi 26, no. 9 (2023): 363–71. http://dx.doi.org/10.14710/jksa.26.9.363-371.

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Zinc oxide (ZnO) nanoparticles have been successfully synthesized using water extract of red dragon fruit (Hylocereus polyrhizus) stem with zinc acetate dihydrate as a precursor of ZnO. Chemical compounds contained in the red dragon fruit stem extract, such as phenolics, terpenoids, and steroids, acted as reducing agents, stabilizers, and capping agents. The phase structure, crystallite size, functional groups, shape, and morphology of ZnO nanoparticles were determined by X-ray diffraction (XRD), Fourier Transform infrared (FT-IR) Spectroscopy, and Scanning Electron Microscopy-Energy Dispersiv
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7

Sathya priya, B., Kanakaraj Aruchamy, Tae Hwan Oh, Balakrishna Avula, Imran Hasan, and M. Shanthi. "Synthesis of Solar Light Active Reduced Graphene Oxide-ZnS Nanomaterial for Photocatalytic Degradation and Antibacterial Applications." Micromachines 14, no. 7 (2023): 1324. http://dx.doi.org/10.3390/mi14071324.

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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, ED
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8

Ferkous, Hamza, Kaouther Kerboua, Oualid Hamdaoui, Naoufel Haddour, and Abdulaziz Alghyamah. "Galvano-Fenton Engineering Solution with Spontaneous Catalyst’s Generation from Waste: Experimental Efficiency, Parametric Analysis and Modeling Interpretation Applied to a Clean Technology for Dyes Degradation in Water." Molecules 26, no. 18 (2021): 5640. http://dx.doi.org/10.3390/molecules26185640.

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In this paper, the degradation of the diazo dye naphthol blue black (NBB) using the Galvano-Fenton process is studied experimentally and numerically. The simulations are carried out based on the anodic, cathodic, and 34 elementary reactions evolving in the electrolyte, in addition to the oxidative attack of NBB by HO• at a constant rate of 3.35×107 mol−1·m3·s−1 during the initiation stage of the chain reactions. The selection of the operating conditions including the pH of the electrolyte, the stirring speed, and the electrodes disposition is performed by assessing the kinetics of NBB degradat
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9

Hassan, Fadimatou, Bouba Talami, Amira Almansba, et al. "Photocatalytic Degradation of Tartrazine and Naphthol Blue Black Binary Mixture with the TiO2 Nanosphere under Visible Light: Box-Behnken Experimental Design Optimization and Salt Effect." ChemEngineering 8, no. 3 (2024): 50. http://dx.doi.org/10.3390/chemengineering8030050.

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In this study, TiO2 nanospheres (TiO2-NS) were synthesized by the solvothermal method. Firstly, the synthesized nanomaterial was characterized by X-ray diffraction (XRD), Fourier Transformed Infrared (FTIR), scanning electron microscopy (SEM) and UV-Vis Diffuse Reflectance Spectroscopy (DRS). To study the photocatalytic degradation of Tartrazine (TTZ) and Naphthol Blue Black (NBB) in a binary mixture, the influence of some key parameters such as pH, pollutant concentration and catalyst dose was taken into account under visible and UV light. The results show a 100% degradation efficiency for TT
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10

Witkowski, Maciej, Laura Pardyak, Piotr Pawlicki, et al. "The G-Protein-Coupled Membrane Estrogen Receptor Is Present in Horse Cryptorchid Testes and Mediates Downstream Pathways." International Journal of Molecular Sciences 22, no. 13 (2021): 7131. http://dx.doi.org/10.3390/ijms22137131.

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Cryptorchidism in horses is a commonly occurring malformation. The molecular basis of this pathology is not fully known. In addition, the origins of high intratesticular estrogen levels in horses remain obscure. In order to investigate the role of the G-protein-coupled membrane estrogen receptor (GPER) and establish histological and biochemical cryptorchid testis status, healthy and cryptorchid horse testes were subjected to scanning electron microscopy analysis, histochemical staining for total protein (with naphthol blue black; NBB), acid content (with toluidine blue O; TBO), and polysacchar
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11

Karelius, Karelius, I. Made Sadiana, Abdul Hadjranul Fatah, and Retno Agnestisia. "Co-Precipitation Synthesis of Clay-Magnetite Nanocomposite for Adsorptive Removal of Synthetic Dye in Wastewater of Benang Bintik Batik." Molekul 17, no. 2 (2022): 261. http://dx.doi.org/10.20884/1.jm.2022.17.2.6358.

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Clay is a natural material that has been widely applied as a low-cost adsorbent for removing various contaminants from wastewater. To improve its characteristics and activity, natural clay from Central Kalimantan was activated by acid and calcination treatments, then synthesized with magnetite (Fe3O4) in nanocomposite by co-precipitation method. The obtained nanocomposite was further characterized by Fourier transform infrared spectroscopy, X-ray diffraction, nitrogen adsorption, vibrating sample magnetometry, and transmission electron microscopy methods. The results showed that co-precipitati
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12

Algarni, Tahani Saad, Amal M. Al-Mohaimeed, Naaser A. Y. Abduh, Reem Abdulrahman Habab, and Saad Mohammed Alqahtani. "Green Synthesis of Mixed ZnO-SnO2 Nanoparticles for Solar-Assisted Degradation of Synthetic Dyes." Catalysts 13, no. 12 (2023): 1509. http://dx.doi.org/10.3390/catal13121509.

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In this work, ZnO, SnO2, and their mixed ZnO-SnO2(25%) nanoparticles (NPs) were successfully green synthesized in a straightforward manner with a low-cost and environmentally friendly approach using a banana peel extract. The synthesized nanophotocatalysts were characterized using various techniques including FTIR, XRD, UV-Vis, TEM, SEM, BET, PL, EDS, and TGA. The characterization results showed that the ZnO and SnO2 powders were crystallized in a hexagonal wurtzite and rutile-type tetragonal structures, respectively, and their mixed ZnO-SnO2(25%) NPs contain both structures. Also, it was foun
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13

Debnath, Sushanta, Niladri Ballav, Hlengilizwe Nyoni, Arjun Maity, and Kriveshini Pillay. "Optimization and mechanism elucidation of the catalytic photo-degradation of the dyes Eosin Yellow (EY) and Naphthol blue black (NBB) by a polyaniline-coated titanium dioxide nanocomposite." Applied Catalysis B: Environmental 163 (February 2015): 330–42. http://dx.doi.org/10.1016/j.apcatb.2014.08.011.

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14

Rahmayanti, Maya, Indah Nurhikmah, and Feni Larasati. "Isolation, Characterization and Application of Humin From Sumatran Peat Soils as Adsorbent for Naphtol Blue Black and Indigosol Blue Dyes." Molekul 16, no. 1 (2021): 67. http://dx.doi.org/10.20884/1.jm.2021.16.1.700.

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Isolation, characterization and application of humin as adsorbent for naphtol blue black (NBB) and indigosol blue (IB) dyes has been carried out. Humin application in this study aims to obtain the optimum pH conditions and kinetics model for adsorption NBB and IB dyes onto humin. Humin was isolated from peat soils originating from Riau, Sumatra. The isolation method used was the alkaline extraction method and the characterization of humin using FTIR spectrophotometer. The total acidity, carboxylic groups and –OH phenolic groups of humin were determined quantitatively using the acid-base titrat
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15

Sheilatina, Sheilatina, Fathurrahmi Fathurrahmi, and Fathur Robbani. "Adsorption of Naphtol Blue Black (NBB) Dye over Immobilized Chitosan from Shrimp Shells onto Glass Plate." Journal of Pharmaceutical And Sciences 5, no. 1 (2022): 21–32. http://dx.doi.org/10.36490/journal-jps.com.v5i1.93.

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The adsorption of naphtol blue black (NBB) dye using immobilized chitosan on the glass plates had been investigated. The chitosan is derived from chitin deacetylation shrimp shells waste with the degree of deacetylation of chitosan is 75.7%. The produced chitosan were analyzed using FTIR and SEM. The effects of different reaction parameters such as mass of adsorbent, initial pH of solution and initial dye concentration were studied for the adsorption NBB dye. The results from this research showed that 30 mg of adsorbent mass at initial pH 6.0 yielded the optimum conditions for the adsorption o
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16

ÇELEBİ, Mithat, and Melda ALTIKATOĞLU. "The Effect of 1-hydroxybenzotriazole on the Decolorization of Anthraquinone and Diazo Dyes Using Peroxidase Enzyme." Open Journal of Nano, November 5, 2023. http://dx.doi.org/10.56171/ojn.1364230.

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Textile dyeing wastewater involving resistant dyestuffs contaminate rivers because of their color and the production of hazardous or carcinogenic intermediates, which must be removed before being released into streams. The ligninolytic enzymes have many uses, including the elimination of dyestuffs from industrial wastewater. In this study, the Lignin Peroxidase enzyme was used to eliminate synthetic solutions of Naphthol Blue Black (NBB) and Remazol Brilliant Blue R (RBBR) dyestuffs at pH 5.0 and 30 °C. In addition, the effect of 1-hydroxybenzotriazole (HOBt), a redox mediator, on dye removal
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17

Kousar, Fakhra, Umar Noor, Muhammad Fayyaz Farid, Toheed Ahmed, and Azam Ali. "Synthesis of Ag @CuO nanocomposites supported by reduced graphene oxide nanosheets: harnessing photocatalytic degradation of naphthol blue black dye." Applied Organometallic Chemistry, February 26, 2024. http://dx.doi.org/10.1002/aoc.7414.

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The significance of utilizing photocatalysts to degrade toxic dyes and microbes has grown in recent years. It has been demonstrated as a successful method for utilizing light through hybrid photocatalysts to break down harmful organic molecules. This study aims to investigate the potential applications of CuO–Ag/rGO nanocomposites in environmental remediation. The nanocomposites were synthesized by incorporating Ag and CuO nanoparticles onto rGO nanosheets via hydrothermal method. The nanocomposites that resulted were thoroughly characterized using various analytical techniques to determine th
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18

Al-Ma’abreh, Alaa M., Dareen A. Hmedat, Gada Edris, Fida’ F. Odeh, and Mariam A. Hamed. "Sustainable dye remediation using Casuarina equisetifolia fruit-derived activated carbon." Adsorption Science & Technology 43 (April 2025). https://doi.org/10.1177/02636174251338398.

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In this research, Casuarina equisetifolia fruit-based-activated carbon (CAC) was employed to investigate the simultaneous removal of crystal violet (CV), Naphthol Black Blue (NBB), and methyl orange (MO) in one mixture from aqueous solutions. The efficacy of adsorbent removal was studied concerning adsorption characteristics such as pH, dose of CAC, initial dye concentration, and adsorption time. Fourier transform infrared (FTIR), scanning electron microscope (SEM), and UV-visible analysis all showed that the dye mixture stuck to the CAC surface at the same time. Results revealed the best simu
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19

Badola, Anjali, Jayeshkumar Prajapati, Bibekananda Bhoi, and Vimlesh Chandra. "Efficient Removal of Anionic Dyes From Water Using Fe3O4@PANI Magnetic Nanocomposites." ChemistrySelect 10, no. 21 (2025). https://doi.org/10.1002/slct.202501782.

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AbstractAnionic dyes significantly threaten ecological environments and human beings. In this study, polyaniline was fabricated on the surface of Fe3O4 nanoparticles by the co‐precipitation method for the removal of Methyl Orange (MO), Reactive Orange 16 (RO 16) and Naphthol Blue Black (NBB). The Fe3O4@PANI nanocomposite was characterized by XRD, FT‐IR, XPS, SEM, TEM, BET, TGA, VSM, and Zeta potential. These techniques confirm the surface morphology, structure, thermal stability, magnetization, and successful fabrication of polyaniline over Fe3O4. The adsorptive behavior of the Fe3O4@PANI nano
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20

Vijayakumar, B., and B. Karthikeyan. "Synthesis and characterization of CdO-SnO2 NPs with excellent performance for Naphthol Blue Black (NBB) dye photodegradation and multi-application study." Materials Today: Proceedings, June 2022. http://dx.doi.org/10.1016/j.matpr.2022.05.524.

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21

Al‐aizari, Faiz A., Badr M. Thamer, Meera Moydeen Abdul Hameed, Abdullah M. Al‐Enizi, and Mohamed H. El‐Newehy. "Novel Functionalized Poly(Ethylene‐co‐Vinyl Alcohol) as a High‐Performance Adsorbent for Cationic Dyes in Wastewater Treatment." Journal of Applied Polymer Science, May 28, 2025. https://doi.org/10.1002/app.57379.

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ABSTRACTA novel, reusable, and highly effective adsorbent; functionalized poly(ethylene‐co‐vinyl alcohol) was modified by grafting with 5‐sulfonate‐salicylaldehyde sodium (S‐PEVOH) and 2,4‐dihydroxybenzaldehyde (H‐PEVOH). The successful functionalization of PEVOH was confirmed by Fourier‐transform infrared (FTIR) spectroscopy, X‐ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and point zero charge measurements. Subsequently, the adsorption performance of S‐PEVOH and H‐PEVOH towards a variety of dyes, including
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22

Mau, Y. P., I. W. B. Suyasa1, and I. E. Suprihatin. "BIODEGRADASI ZAT WARNA NAPHTOL BLUE BLACK MENGGUNAKAN BIOSISTEM HORIZONTAL." Jurnal Kimia, July 31, 2018, 201. http://dx.doi.org/10.24843/jchem.2018.v12.i02.p17.

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Warna naphtol blue black (NBB) banyak digunakan dalam pewarnaan kain pada industry rumah tangga. Kegiatan tersebut banyak menghasilkan air limbah yang mengandung zat warna yang mencemari linkungan perairan. Pengembangan biosistem horizontal dengan menambahkan konsorsium mikroorganisme untuk meningkatkan kinerja biosistem adalah alternative penanganan limbah cair. Penelitian ini bertujuan untuk menentukan suspensi aktif terbaik yang akan digunakan dalam pengolahan limbah NBB, kemampuan biosistem horizontal dalam menurunkan konsentrasi NBB. Proses pengolahan zat warna NBB pada penelitian ini men
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