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26 articles for “aqueous dye”
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Adsorption of Congo Red Dye in Aqueous Solution using Moringa oleifera Seed Powder
Abstract: The feasibility of using Moringa oleifera seed for the Congo red adsorption from aqueous solution has been investigated as a low cost and an eco-friendly adsorbent. Adsorption studies were conducted on a batch process, to study the effects of contact time, initial dye concentration and adsorbent dosage. Maximum colour removal was observed at higher adsorbent dosage. The present dye removal decreased from 95% to 81% as the dye concentration has …
Published in Journal of Catalyst & Catalysis · Vol. 8, Issue 1, 2021 · pp. 8–18 Read article
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Facile Fabrication and Characterization of Novel Sterculia Gum–graft-poly(n-isopropylacrylamide-co-acrylamide) Hydrogel for Efficient Removal of Cationic Dyes from Aqueous Solution
Abstract: Water is indispensable component of life. Contamination of water is a severe problem that affects human health, aquatic vegetation, and fauna. Aside from various effluents, a variety of cationic dyes generated by industrial effluents contributes significantly to water contamination. In this study, a sterculia gum graft-poly(n-isopropylacrylamide-co-acrylamide) hydrogel was made using a graft copolymerization technique with N,N′-methylene-bis-acrylamide as a crosslinker, ammonium persulphate as an initiator, and tetramethylethylenediamine as an accelerator to …
Published in Journal of Polymer & Composites · Vol. 10, Issue 2, 2022 · pp. 29–59 Read article
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Adsorption of Methylene Blue Dye from Aqueous Solution Using Polyaniline/Xanthan Gum Nanocomposite: Kinetic and Isotherm Studies
Abstract: ABSTRACTIn the present study, adsorptive properties of polyaniline/xanthan gum nanocomposite were investigated for methylene blue (MB) dye in aqueous solution. The effects of different parameters, namely adsorption time, adsorbent dose, pH and initial dye concentration were on dye adsorption were investigated. The results revealed that a rise se in pH lead to a significant increase in adsorption efficiency. Optimum adsorption time and nanocomposite dose were obtained 60 min and 0.075 …
Published in Journal of Polymer & Composites · Vol. 7, Issue 1, 2019 · pp. 17–26 Read article
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Improved Photocatalytic Activity for Removal of Methylene Blue Dye from Aqueous Solutions with La2O3-Modified Ceria Heterostructured Binary Oxide Nanocomposite Particles
Abstract: The current study aimed to examine the photocatalytic efficacy of a bimetallic CeO2-La2O3 hetero-NC in comparison to monometallic CeO2 and La2O3 nanoparticles (NPs), utilizing Methylene Blue (MB)as pollutant sample under natural solar and UV irradiation. The coprecipitation method was utilized to produce a bimetallic CeO2-La2O3 hetero-NC. Following this, the nanostructures underwent characterization through various techniques including FT-IR, FE-SEM, XRD, UV Vis- DRS, Raman, and Photoluminescence spectroscopy. The catalytic activity of …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 514–532 Read article
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Preparation of an Indicator Dye from Tender Coconut Husk and Analysis of its Stability
Abstract: India is eminent in its production and usage of tender coconuts. The aim of this paper was to develop a useful product from tender coconut waste. It focuses on the utilization of coconut husk to produce an indicator dye for the detection of the approximate pH of any solution. A concentrated dye was first prepared in aqueous form. When stored, it was stable and functional at room temperature as well …
Published in Research & Reviews : Journal of Botany · Vol. 9, Issue 3, 2020 · pp. 17–23 Read article
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Using of the sea grasses for the removal of some industrial organic dyes; bromo cresol purple from aqueous solutions
Abstract: Abstract: The objectives of this study are evaluating the efficiency of low cost adsorbents of activated carbon obtained from sea grasses. Using the sea grasses for the removal of some industrial organic dye; bromo cresol purple indicators from aqueous solutions and studying the impact of some of the factors including different dosages , pH, different concentrations, different temperature and effect of time of adsorbed materials. Adsorption efficiency of dye onto …
Published in Emerging Trends in Chemical Engineering · Vol. 6, Issue 3, 2019 · pp. 29–36 Read article
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Effect of the U.V. Irradiation on the Aqueous Solution of Dye (i.e. Cresol Purple)
Abstract: This study aimed to estimate the effect of the U.V. irradiation on the aqueous solution of cresol purple. Then study the effect of the activation energy of each electron transfere on the absorbance and λmax values. The absorbance and λmax values of the selective λmax solutions were chanced in most solutions, where the U.V radiation gave different values at different irradiation periods, most of solution gave low values of absorbance …
Published in Emerging Trends in Chemical Engineering · Vol. 8, Issue 1, 2021 · pp. 30–35 Read article
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Fungal Biosorption: An Innovative Treatment Method for the Removal of Textile Dyes
Abstract: Basic fuchsin is a potential toxic, irritant and carcinogenic dye. Conventional dye effluent treatment strategies can cause extreme ecological problems. Therefore, the present study was focused on the sorption of Basic fuchsin dye by dead Aspergillus niger biomass at different pH (pH 6.0, pH 6.5, pH 7.0 and pH 7.5) from aqueous dye solution. Maximum dye removal was observed at pH 7.0 (80.42%). The equilibrium data were analyzed by employing …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 8, Issue 2, 2018 · pp. 82–89 Read article
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Reverse Micellar Extraction of Direct Yellow-4 dye from Textile Effluent
Abstract: Textile industries and various dye houses are accountable for discharging highly polluted colored effluent leading to severe water pollution. Decolorization of textile effluent is the main challenge faced by these industries. In this study, the solvent extraction method was used to remove anionic dye Direct Yellow-4 (DY-4) from simulated effluent using cationic surfactant CTAB (Cetyltrimethyl ammonium bromide) in polar solvent isoamyl alcohol. The removal trend of the dye from aqueous …
Published in Emerging Trends in Chemical Engineering · Vol. 7, Issue 1, 2020 · pp. 5–9 Read article
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Bio Materials and Nanotechnology: Green Tea (Waste)– Aluminium Nanoparticles (Gt-Al Nps) For Methylene Blue Adsorption
Abstract: This study examines the adsorption of Methylene Blue (MB) dye from aqueous solutions using Aluminium Nanoparticles synthesized with green tea powder as a biological reducing agent. Methylene Blue, an aromatic phenothiazine dye, is widely applied in medical diagnostics and various industrial processes, but its uncontrolled release into water bodies leads to environmental pollution due to its intense colour, stability, and potential toxicity. Therefore, identifying an efficient and eco-friendly adsorbent for …
Published in Journal of Materials & Metallurgical Engineering · Vol. 15, Issue 3, 2025 · pp. 96–107 Read article
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Isotherm and Kinetic Studies of Methylene Blue Dye Adsorption Using Sulfuric Acid Activated Nigerian Montmorillonite Clay
Abstract: The Presence of methylene blue and other basic dyes in water causes various harmful effects for both human and aquatic species. In this study, montmorillonite clay in its raw and acid (0.5M H2SO4) activated states were investigated for the sorption of methylene blue dye. The structural changes due to acid treatment were analyzed by X-ray diffraction (XRD) and scanning electron microscope (SEM). The studied parameters that affect adsorption efficiency were …
Published in Journal of Catalyst & Catalysis · Vol. 7, Issue 2, 2020 · pp. 37–47 Read article
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Catalytic Reduction of Organic Dyes with Green Synthesized Silver Nanoparticles using Aloe vera Leaf Extract
Abstract: In this present study, we report a facile, cost-effective and non-toxic method of synthesis of silver nanoparticles using 4mM silver nitrate and aqueous leaf extract of Aloe vera as reducing and capping agent in presence of 25% ammonia solution. Then these green synthesized nanoparticles are used as catalysts for the degradation of organic dyes. The synthesized silver nanoparticles (AVSNPs) were characterized using different techniques like UV-Visible spectroscopy, Fourier infrared spectroscopy …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 9, Issue 2, 2019 · pp. 9–21 Read article
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Synthesis of Activated Carbon from Corn Cob and Factors Affecting its Adsorption and Desorption Efficiency of Cationic Brilliant Green Dye
Abstract: Extreme dye pollutants released from textile, leather, and pulp industries are becoming a major concern to the water. These pollutants are highly toxic to living things. The major objective of this study was to prepare low-cost and efficient activated carbon from corncob (CCAC) adsorbent through the H2SO4 activation method and characterize its suitability for removing brilliant green dye (BGD) from aqueous solution. The adsorption and desorption efficiency of the prepared …
Published in Journal of Water Pollution & Purification Research · Vol. 12, Issue 3, 2025 · pp. 27–44 Read article
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Extraction and Application of Natural Dye from Nerium oleander
Abstract: The present study involves extraction of dye from Nerium oleander flower using varied percentage (10%, 20%, 5%, 10%) of different solvents and different methods (water bath, sonicator bath, microwave oven and shaker incubator). Extraction with different solvents (distilled water, ethanol, chloroform, methanol) and extraction methods were found to exhibit differential extraction of dye and it was evident by the intensity of dye extract. Absorption maximum of the extracted dye using …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 9, Issue 1, 2019 · pp. 37–46 Read article
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Electrooxidation of Methylene Blue over nanoparticle coated DSA synthesized by sol-gel method
Abstract: The current study uses the sol-gel approach to synthesize a new Dimensionally Stable Anode (DSA) covered with nanoparticles. The objective is to enhance the electrocatalytic activity and overall performance of the anodes in treating synthetic industrial wastewater containing reactive dyes. CuO and TiO2 nanoparticles are coated using a thermal decomposition technique on a titanium electrode. The DSA surface gains more surface area and better catalytic capabilities when nanoparticles are coated …
Published in Emerging Trends in Chemical Engineering · Vol. 11, Issue 2, 2024 · pp. 34–43 Read article
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Studies on Optical and Electrical Properties of Biohybrid Devices
Abstract: We have reported the studies on optical and electrical properties of hybrid devices. The hybrid films were prepared using a layer of natural dye on ZnO thin films. ZnO thin film was fabricated on FTO coated glass substrate using magnetron sputtering. The natural dyes were extracted using aqueous method from basil, pomegranate, and spinach. It is important to control the molecular layers in the formation of hybrid electronic devices. The …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 11, Issue 1, 2021 · pp. 6–15 Read article
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Extraction, Stability, and Application of Natural Dye from Spathodea campanulata Flower: A Study on Shelf Life, Yield, and Fabric Dyeing Potential
Abstract: The growing demand for sustainable and eco-friendly alternatives to synthetic dyes has led to increased interest in natural dye sources. Spathodea campanulata, commonly known as the African Tulip Tree, is a potential source of natural dye due to its vibrant floral pigments. This study focuses on the extraction, yield, stability, and application of the dye obtained from Spathodea campanulata flowers. The dye was extracted using an aqueous method, and its …
Published in Research & Reviews : Journal of Botany · Vol. 14, Issue 3, 2025 · pp. 8–15 Read article
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EXPERIMENTAL STUDIES ON ADSORPTION BY MAGNIFERA INDICA LEAVES
Abstract: Decolourisation of dye (Congo red) from aqueous solution using an adsorbent prepared from Mango leaf was investigated in this study. The influence of time of mechanical shaking , mass of adsorbent(0.5,1,1.5,2 mg), initial pH, initial concentration (2000 ,1500,1000,500,250 mg/L) on adsorption has been evaluated. It is shown that adsorbent prepared from Mango leaf powder has a relatively high adsorption capacity for these adsorbates. For 500 mg/L of solution prepared, the …
Published in Emerging Trends in Chemical Engineering · Vol. 6, Issue 1, 2019 · pp. 12–16 Read article
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Biodecolorization of Textile Dye Effluent by Biosorption on Plant Biomass and Equilibrium Modelling
Abstract: AbstractDye effluent discharge into water bodies leading to water pollution. Each textile dye process requires a different amount of dye and also it generates a different amount of effluents. Most of the physico-chemical methods are insufficient and highly expensive. Biosorption is an alternative technology for the treatment of different textile and other effluents. Aquatic plants specially water hyacinth showed a greater potential to use as biotrap for textile effluent treatment. …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 9, Issue 1, 2019 · pp. 15–25 Read article
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Silver Nanoparticles Biosynthesis Using Grape Extract and Its Application in Photocatalytic Dye Degradation
Abstract: AbstractGrapes are known for its antioxidant properties. Aqueous grape extract is used in the current study as a reducing and stabilising agent in the production of silver nanoparticles. Silver nanoparticles were synthesized in single step method, at room temperature, under magnetic stirring without application of external energy. Silver nanoparticles are substantial for its application in numerous areas such as medicine, agriculture, food, chemical sector etc. Synthesis and optimization of silver …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 13, Issue 3, 2022 · pp. 1–8 Read article