Biosorption and regeneration potentials of magnetite nanoparticle loaded Solanum tuberosum peel for celestine blue dye

Abstract This work was aimed at the synthesis of a hybrid (STpe-AgNP), obtained by impregnation of silver nanoparticles (AgNP) onto Solanum tuberosum peel (STpe), for the ultrasonic assisted adsorption of bromophenol blue (BB) dye. SEM, FTIR, XRD, EDX, TGA and BET techniques were used to characterize the adsorbents. The XRD, SEM and EDX confirmed successful impregnation of AgNPs onto STpe to form the hybrid. The AgNPs impregnated onto the hybrid were found to be water stable at various pH values of 2.0–9.0. Chi-square (χ2 < 0.024) and linear regression (R2 > 0.996) showed that the Freundlich model was best fitted among the isotherm models, corroborated by the oriented site model. Kinetic analysis conformed to the intraparticle diffusion and pseudo-first-order rate equations, while thermodynamics displayed a physical, spontaneous and endothermic adsorption process. The presence of competing Pb(II), Ni(II), Cd(II) and Zn(II) metal ions in solution interfered with the adsorption of BB onto the biosorbents. In terms of reusability, STpe and STpe-AgNP showed BB desorption of 91.3% and 88.5% respectively, using NaOH as eluent. Ultra-sonication significantly enhanced the adsorption of BB by both adsorbents, but the impregnation of AgNPs only slightly improved adsorption of the dye from the simulated wastewater. This study also illustrated that pristine STpe biomass waste is a cheap viable option for the decontamination of BB from water.

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Surface modification and cathodic electrophoretic deposition of ceramic materials and composites using celestine blue dye

RSC Advances ◽

10.1039/c4ra03938f ◽

2014 ◽

Vol 4 (56) ◽

pp. 29652 ◽

Cited By ~ 8

Author(s):

Y. Liu ◽

M. S. Ata ◽

K. Shi ◽

G.-z. Zhu ◽

G. A. Botton ◽

...

Keyword(s):

Surface Modification ◽

Electrophoretic Deposition ◽

Ceramic Materials ◽

Blue Dye ◽

Celestine Blue

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Integrated Membrane–Electrocoagulation System for Removal of Celestine Blue Dyes in Wastewater

Membranes ◽

10.3390/membranes10080184 ◽

2020 ◽

Vol 10 (8) ◽

pp. 184

Author(s):

Muhammad Syaamil Saad ◽

Lila Balasubramaniam ◽

Mohd Dzul Hakim Wirzal ◽

Nur Syakinah Abd Halim ◽

Muhammad Roil Bilad ◽

...

Keyword(s):

Textile Industry ◽

Membrane Filtration ◽

Dye Removal ◽

Textile Wastewater ◽

Membrane System ◽

Electrolytic Cell ◽

Integrated System ◽

Superior Performance ◽

Blue Dye ◽

Celestine Blue

The textile industry provides for the needs of people especially in apparel and household items. The industry also discharges dye-containing wastewater that is typically challenging to treat. Despite the application of the biological and chemical treatments for the treatment of textile wastewater, these methods have their own drawbacks such as non-environment friendly, high cost and energy intensive. This research investigates the efficiency of the celestine blue dye removal from simulated textile wastewater by electrocoagulation (EC) method using iron (Fe) electrodes through an electrolytic cell, integrated with nylon 6,6 nanofiber (NF) membrane filtration for the separation of the flocculants from aqueous water. Based on the results, the integrated system achieves a high dye removal efficiency of 79.4%, by using 1000 ppm of sodium chloride as the electrolyte and 2 V of voltage at a constant pH of 7 and 10 ppm celestine blue dye solution, compared to the standalone EC method in which only 43.2% removal was achieved. Atomic absorption spectroscopy analysis was used to identify the traces of iron in the residual EC solution confirming the absence of iron. The EC-integrated membrane system thus shows superior performance compared to the conventional method whereby an additional 10–30% of dye was removed at 1 V and 2 V using similar energy consumptions.

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Fabrication of carbon nanotube (CNTs)/Co3O4-Ni3O4/Al2O3 nanocomposite catalyst and its application for photocatalytic removal of Celestine blue dye

Egyptian Journal of Chemistry ◽

10.21608/ejchem.2021.95421.4480 ◽

2021 ◽

Vol 0 (0) ◽

pp. 0-0

Author(s):

Ahmed Halbus ◽

Hussein Ismael ◽

Thamer A.A.M. Alalwani ◽

Sadiq J. Baqir ◽

Zahraa Athab ◽

...

Keyword(s):

Carbon Nanotube ◽

Blue Dye ◽

Celestine Blue ◽

Photocatalytic Removal ◽

Nanocomposite Catalyst

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Blue Dye in the Evaluation of Dysphagia

Perspectives on Swallowing and Swallowing Disorders (Dysphagia) ◽

10.1044/sasd11.4.4 ◽

2002 ◽

Vol 11 (4) ◽

pp. 4-6

Author(s):

Nancy B. Swigert

Keyword(s):

Blue Dye

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First experiences with a new radiopharmaceutical for sentinel lymph node detection in malignant melanoma

Nuklearmedizin ◽

10.1055/s-0038-1623908 ◽

2004 ◽

Vol 43 (01) ◽

pp. 10-15 ◽

Cited By ~ 4

Author(s):

R. A. Schmid ◽

C. Kunte ◽

B. Konz ◽

K. Hahn ◽

M. Weiss

Keyword(s):

Lymph Node ◽

Sentinel Lymph Node ◽

Malignant Melanoma ◽

Sentinel Node ◽

Gamma Probe ◽

Blue Dye ◽

Sentinel Nodes ◽

Technetium 99M ◽

Positive Rate ◽

Metastatic Involvement

Summary Aim of this study was to localize the sentinel lymph node by lymphoscintigraphy using technetium-99m colloidal rhenium sulphide (Nanocis®), a new commercially available radiopharmaceutical. Due to the manufacturers’ instructions it is licensed for lymphoscintigraphy. Patients, methods: 35 consecutive patients with histologically proved malignant melanoma, but without clinical evidence of metastases, were preoperatively examined by injecting 20-40 MBq Nanocis® with (mean particle size: 100 nm; range: 50-200 nm) intradermally around the lesion. Additionally blue dye was injected intaoperatively. A hand-held gamma probe guided sentinel node biopsy. Results: During surgery, the preoperatively scintigraphically detected sentinel lymph nodes were identified in 34/35 (97%) patients. The number of sentinel nodes per patient ranged from one to four (mean: n = 1.8). Histologically, metastatic involvement of the sentinel lymph node was found in 12/35 (34%) patients; the sentinel lymph node positive-rate (14/63 SLN) was 22%. Thus, it is comparable to the findings of SLN-mapping using other technetium-99m-labeled nanocolloides. Conclusion: 99mTc-bound colloidal rhenium sulphide is also suitable for sentinel node mapping.

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Situación económica y social de la población de San José del Carmen, San Cristóbal de las Casas, Chiapas

RECUBRIMIENTO COMESTIBLE CON BASE DE PIÑON MEXICANO (Jatropha curcas) SOBRE LA CALIDAD DE CHAYOTE MINIMAMENTE PROCESADO ◽

10.32854/agrop.v0i0.1371 ◽

2019 ◽

Vol 12 (4) ◽

Author(s):

Pedro Cadena-Iñiguez ◽

Eileen Salinas-Cruz ◽

Jesús Martínez-Sánchez ◽

Mariano Morales-Guerra ◽

Romualdo Vásquez-Ortiz ◽

...

Keyword(s):

Solanum Tuberosum ◽

Theobroma Cacao ◽

Zea Mays L ◽

Solanum Tuberosum L ◽

San Jose ◽

Phaseolus Vulgaris L ◽

Las Casas ◽

Vicia Faba L ◽

Las Mujeres ◽

Theobroma Cacao L

Objetivo: Establecer una línea base como fundamento para la intervención e inducción de innovaciones a través de escuelas de campo y planes de negocios. Diseño/metodología/aproximación: El estudio se desarrolló en San José del Carmen, San Cristóbal de Las Casas, Chiapas, México. Se elaboró una encuesta como instrumento para recabar en campo información de familias de la localidad con la finalidad de conocer su situación actual. La localidad de trabajo se eligió utilizando como criterio las poblaciones que se encuentran dentro de Cruzada Nacional contra el hambre y en la clasificación de la pobreza extrema Resultados: La localidad de San José del Carmen es considerada como de alta marginación, la población es bilingüe, su principal lengua es el Tzotzil, el nivel de estudios promedio es hasta el tercer año de primaria, las principales actividades productivas son la siembra de maíz (Zea mays L.), frijol (Phaseolus vulgaris L.), papa (Solanum tuberosum L.) y haba (Vicia faba L.) que son utilizadas principalmente para autoconsumo. No cuentan con agua potable ya que su sistema es a través de la recaudación de agua de lluvia o a través de un jagüey. Sus principales actividades económicas son la albañilería por parte de los hombres, y venta de productos, tales como el pozol (bebida energética a base de maíz y cacao (Theobroma cacao L.), tostadas y algunos vegetales por parte de las mujeres. Las tostadas son producidas en forma artesanal con un proceso de doble nixtamalización y vendida en bolsas de 20 tostadas cada una, a un costo de MX$10.00 en los mercados de San Cristóbal de las Casas, una a dos veces por semana alrededor de 40 bolsas por día de venta. Limitaciones del estudio/implicaciones: La afiliación zapatista de alguno de los pobladores y el hecho de que algunos habitantes no hablen español, fueron factores que limitaron desarrollar al 100% el estudio; sin embargo, se considera que se tienen los elementos necesarios para establecer la línea base de la situación de San José del Carmen. Conclusiones: El diagnóstico servirá como una herramienta para establecer una intervención a través de innovaciones y planes de negocios en la comunidad de estudio. Los pobladores cuentan con herramientas necesarias para obtener nuevos conocimientos que ayuden a un desarrollo de su producción. El idioma no deberá de ser una limitante para ello.

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Using of modified-bentonite as low-cost sorbent for removal of methylene blue dye from aqueous solution

Association of Arab Universities Journal of Engineering Sciences ◽

10.33261/jaaru.2020.27.2.005 ◽

2020 ◽

Vol 27 (2) ◽

pp. 45-54

Author(s):

Saraa Muwafaq Ibrahim ◽

Ziad T. Abd Ali

Keyword(s):

Aqueous Solution ◽

Methylene Blue ◽

Silanol Group ◽

Infrared Spectrometry ◽

Blue Dye ◽

Ammonium Bromide ◽

Vibration Band ◽

Order Kinetic ◽

Methylene Blue Dye ◽

Modified Bentonite

Batch experiments have been studied to remove methylene blue dye (MB) from aqueous solution using modified bentonite. The modified bentonite was synthesized by replacing exchangeable calcium cations in natural bentonite with cationic surfactant cetyl trimethyl ammonium bromide (CTAB). The characteristics of modified bentonite were studied using different analysis such as Scanning electronic microscopy (SEM), Fourier transform infrared spectrometry (FTIR) and surface area. Where SEM shows the natural bentonite has a porous structure, a rough and uneven appearance with scattered and different block structure sizes, while the modified bentonite surface morphology was smooth and supplemented by a limited number of holes. On other hand, (FTIR) analysis that proved NH group aliphatic and aromatic group of MB and silanol group are responsible for the sorption of contaminate. The organic matter peaks at 2848 and 2930 cm-1 in the spectra of modified bentonite which are sharper than those of the natural bentonite were assigned to the CH2 scissor vibration band and the symmetrical CH3 stretching absorption band, respectively, also the 2930 cm-1 peak is assigned to CH stretching band. The batch study was provided the maximum removal efficiency (99.99 % MB) with a sorption capacity of 129.87 mg/g at specified conditions (100 mg/L, 25℃, pH 11 and 250rpm). The sorption isotherm data fitted well with the Freundlich isotherm model. The kinetic studies were revealed that the sorption follows a pseudo-second-order kinetic model which indicates chemisorption between sorbent and sorbate molecules.

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