scholarly journals Perbandingan Aktivitas Reaksi Fotodegradasi Remazol Red dengan TiO2 Anatas 50%-Rutil 50% dan TiO2 Anatas Tersupport AgI

2021 ◽  
Vol 4 (1) ◽  
pp. 32-44
Author(s):  
Sri Rejeki Dwi Astuti ◽  
Anggi Ristiyana Puspita Sari ◽  
Karlinda Karlinda
Keyword(s):  
Remazol Red

Kandungan ikatan azo dalam zat pewarna tekstil remazol red mengakibatkan zat warna lebih mudah larut dalam air dan memiliki stabilitas yang tinggi. Hal ini menyebabkan limbah tekstil memerlukan penanganan khusus agar aman dan tidak memberikan dampak negatif ketika dilepas ke perairan. Salah satu cara alternatif untuk menangani limbah non-degradable adalah dengan menggunakan metode fotodegradasi dengan bantuan fotokatalis. Penelitian ini bertujuan untuk membandingkan aktivitas reaksi fotodegradasi remazol red dengan fotokatalis TiO2 anatas 50%-rutil 50% dan TiO2 anatas tersupport AgI. Proses fotodegradasi Remazol red dilakukan dengan memvariasi fotokatalis yang digunakan yaitu fotokatalisis TiO2 anatas 50%-rutil 50% dan TiO2 anatas tersupport AgI dan lama waktu penyinaran yaitu 15 menit, 30 menit, 45 menit, 60 menit, 75 menit, dan 90 menit. Untuk mengetahui pengaruh lama penyinaran terhadap fotodegradasi Remazol red, maka dilakukan pengukuran absorbansi larutan menggunakan spectronic 200 pada panjang gelombang 558nm setiap selang waktu 15 menit. Hasil aktivitas fotokatalitis menunjukkan persentase degradasi remazol red pada sistem TiO2 anatas tersupport AgI, TiO2 anatas 50%-rutil 50% dan tanpa katalis berturut-turut sebesar 32%, 16%, dan 7%. Oleh karena itu fotokatalis TiO2 anatas tersupport AgI memiliki aktivitas fotokatalisis yang lebih baik daripada fotokatalis TiO2 anatas 50% - rutil 50%

Immobilization of ZnO Suspension on Glass Substrate to Remove Filtration During the Removal of Remazol Red R from Aqueous Solution

2016 ◽  
Vol 12 (6) ◽  
pp. 4127-4133
Author(s):  
Nazmul Kayes ◽  
Jalil Miah ◽  
Md. Obaidullah ◽  
Akter Hossain ◽  
Mufazzal Hossain
Keyword(s):  
Aqueous Solution ◽  
Glass Substrate ◽  
Uv Light ◽  
Aqueous Suspension ◽  
Light Irradiation ◽  
Zno Films ◽  
Light Sources ◽  
Zno Film ◽  
Semiconductor Oxides ◽  
Remazol Red

Photodegradation of textile dyes in the presence of an aqueous suspension of semiconductor oxides has been of growing interest. Although this method of destruction of dyes is efficient, the main obstacle of applying this technique in the industry is the time and cost involving separation of oxides from an aqueous suspension. In this research, an attempted was made to develop ZnO films on a glass substrate by simple immobilization method for the adsorption and photodegradation of a typical dye, Remazol Red R (RRR) from aqueous solution. Adsorption and photodegradation of  RRR were performed in the presence of glass supported ZnO film. Photodegradation of the dye was carried out by varying different parameters such as the catalyst dosage, initial concentrations of RRR, and light sources. The percentage of adsorption as well as photodegradation increased with the amount of ZnO, reaches a maximum and then decreased. Maximum degradation has been found under solar light irradiation as compared to UV-light irradiation. Removal efficiency was also found to be influenced by the pre-sonication of ZnO suspension.

Photocatalytic degradation of Remazol Red B and Rhodamine B dyes using TiO2 nanomaterial: estimation of the effective operating parameters

2021 ◽  
Vol 233 ◽  
pp. 319-330
Author(s):  
Farid I. El-Dossoki ◽  
Tarek M. Atwee ◽  
Ahmed M. Hamada ◽  
Ashraf A. El-Bindary
Keyword(s):  
Photocatalytic Degradation ◽  
Rhodamine B ◽  
Operating Parameters ◽  
Remazol Red

Removal of Remazol Red RR from Aqueous Solution by Glass Supported Films of Synthesized ZnO Nanoparticles

2021 ◽  
Vol 2 (3) ◽  
Author(s):  
Mohammad Akter Hossain ◽  
Md. Nazmul Kayes ◽  
Md. Mufazzal Hossain
Keyword(s):  
Aqueous Solution ◽  
Removal Efficiency ◽  
High Surface ◽  
Sol Gel ◽  
Volume Ratio ◽  
Textile Dye ◽  
Sunlight Irradiation ◽  
X Ray ◽  
Operating Variables ◽  
Remazol Red

The nanoparticles of ZnO (n-ZnO) have been synthesized by a sol-gel method and characterized by UV-visible and FTIR spectroscopy, scanning electron microscopy (SEM), energy dispersive X-Ray spectrometry (EDX) and powder X-ray diffractometry (XRD). Precursor of n-ZnO particles were prepared via a non-aqueous route, which was calcined at 500oC. These particles were then deposited on a glass substrate for adsorption and photodegradation of a typical textile dye, Remazol Red R (RRR). Especially, the high surface to volume ratio of nanoparticles has appealed much attention to use these particles both as an adsorbent and a photocatalyst. A comparative study was carried out between n-ZnO and a commercially available ZnO (c-ZnO) to investigate the removal efficiency of RRR from its aqueous solution under different conditions. The removal efficiency has been optimized by varying several operating variables and the highest performance has been obtained with 0.115 g/slide of ZnO and 0.5 × 10-4 M aqueous solution of RRR under sunlight irradiation. It is important to note that the use of the films of ZnO in the presence of solar light makes it suitable for recycling and causes no secondary environmental pollution.

scholarly journals Kajian Metode Elektrofotokatalisis, Elektrolisis dan Fotokatalisis pada Dekolorisasi Larutan Zat Warna Remazol Red RB yang Mengandung Ion Logam Cd2+

2012 ◽  
Vol 15 (2) ◽  
pp. 58-61
Author(s):  
Rosida Puspita Sari ◽  
Abdul Haris ◽  
Nor Basid Adiwibawa Prasetya
Keyword(s):  
Remazol Red ◽  
Uv C

Limbah cair industri tekstil mengandung zat warna dan logam berat. Remazol Red RB dan logam kadmium merupakan zat warna dan logam berat yang banyak terdapat pada limbah tekstil. Pembuangan limbah cair tekstil tanpa pengolahan limbah terlebih dahulu akan menyebabkan pencemaran lingkungan perairan. Metode elektrolisis, fotokatalisis dan elektrofotokatalisis merupakan metode yang dapat digunakan dalam penanganan limbah tekstil. Pada penelitian ini akan dibandingkan ketiga metode tersebut untuk dekolorisasi larutan zat warna remazol red RB yang mengandung ion logam Cd2+ serta mengetahui pengaruh keberadaan ion logam Cd2+ dan penyinaran lampu UV-C terhadap dekolorisasi zat warna remazol red RB. Hasil penelitian menunjukkan bahwa metode elektrofotokatalisis merupakan metode yang paling efektif karena mampu mendekolorisasi remazol red RB hingga 97,85% dan menurunkan konsentrasi ion logam Cd2+ hingga 96,50%. Keberadaan ion logam Cd2+ dan penyinaran lampu UV-C meningkatkan dekolorisasi zat warna remazol red RB.

scholarly journals Photocatalytic efficiency of titanium dioxide immobilized on PVP/AAc hydrogel membranes: A comparative study for safe disposal of wastewater of Remazol Red RB-133 textile dye

2005 ◽  
Vol 7 (4) ◽  
pp. 181-185 ◽  
Author(s):  
Hoda S. Hafez ◽  
A. El-Hag Ali ◽  
M. S. A. Abdel-Mottaleb
Keyword(s):  
Sol Gel ◽  
Textile Wastewater ◽  
Textile Dye ◽  
Photocatalytic Efficiency ◽  
Safe Disposal ◽  
Hydrogel Membranes ◽  
Different Types ◽  
Degussa P25 ◽  
Gel Technique ◽  
Remazol Red

The paper reports on the photocatalytic efficiency ofTiO2nanoparticles immobilized on polyvinyl pyrrolidone/acrylic acid (PVP/AAc) copolymer hydrogels, which are prepared by means ofγ-rays induced homo- and copolymerization. The efficiency of immobilized photocatalyst is tested on a commercial textile dye namely Remazol Red RB-133. The results are compared with photocatalytic efficiencies of different types of non supportedTiO2photocatalysts such as aqueous slurries of colloidalTiO2prepared by sol-gel technique, and commercially available Degussa P25. Although less efficient than nonsupported ones, the hydrogel supportedTiO2photocatalyst has the practical advantages of easy separation and removal from the reactors. This makes it a viable technique for the safe disposal of textile wastewater into the water streams.

scholarly journals Micellar-Enhanced Ultrafiltration Using a Plant-Derived Surfactant for Dye Separation in Wastewater Treatment

Membranes ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 220
Author(s):  
Nita Aryanti ◽  
Aininu Nafiunisa ◽  
Tutuk Djoko Kusworo ◽  
Dyah Hesti Wardhani
Keyword(s):  
Membrane Fouling ◽  
Surfactant Micelle ◽  
Natural Surfactant ◽  
Cake Formation ◽  
Natural Surfactants ◽  
Environmentally Safe ◽  
Micellar Enhanced Ultrafiltration ◽  
Blocking Mechanisms ◽  
Remazol Red ◽  
Blocking Mechanism

Micellar-enhanced ultrafiltration (MEUF) is one of several membrane methods used for the removal of trace organic pollutants from aqueous streams. In this process, a surfactant is added to a polluted aqueous solution at a concentration higher than its critical micelle concentration (CMC). Unlike synthetic surfactants, natural surfactants, from plants such as the saponin, while ecologically adaptable as surfactants in MEUF systems, are also biodegradable, renewable, and environmentally safe. This study applied Sapindus rarak extract as the natural surfactant in MEUF for Remazol dye separation. It was found that the presence of Sapindus rarak extract increased separation of Remazol red and blue dyes by up to 97.02% and 99.42%, respectively. However, the addition of surfactant decreased permeate fluxes due to membrane fouling and concentration polarization. In addition, loading micelle (Lm), representing the performance of the surfactant micelle for dye separation, as well as the blocking mechanism, was investigated. Lm was found to be in the range of 0.002–0.068 mM dyes/mM saponin. Ultrafiltration blocking mechanisms, as confirmed by the Hermia model, were: standard blocking, for cases without the addition of surfactant; cake formation, for cases with surfactant below the CMC; and complete blocking, for cases with surfactant above the CMC.

scholarly journals Optimization of Fe2+ addition for degradation process of textile dye waste using contact glow discharge electrolysis with air injection

2018 ◽  
Vol 67 ◽  
pp. 03031
Author(s):  
Tulus Sukreni ◽  
Nadya Saarah Amelinda ◽  
Nelson Saksono ◽  
Setijo Bismo
Keyword(s):  
Glow Discharge ◽  
Batch Reactor ◽  
Cooling Water ◽  
Degradation Process ◽  
Air Injection ◽  
Textile Dye ◽  
Oh Radicals ◽  
Contact Glow Discharge Electrolysis ◽  
Glow Discharge Electrolysis ◽  
Remazol Red

This research determined the optimum concentration of Fe2+ to degrade waste textile dye by Contact Glow Discharge Electrolysis (CGDE) method with air injection. The addition of Fe2+ ions can increase the degradation rate of the dye waste due to the radical catalytic conversion of H2O2 producing OH radicals that play a significant role in the degradation process. Remazol Red was used as a dye synthetic dye which was degraded using a batch reactor equipped with continuous cooling water. Experimental results showed that waste concentrations of 100, 200, 300 and 400 ppm obtained the optimum Fe2+ concentration at 10, 20, 30 and 40 ppm, respectively. The higher concentration of dye waste indicated the higher the Fe2+ ion requirement to decrease the textile dye waste.

Investigation into Acceleration Efficiency of Ultrasound in Dyeing Process

2013 ◽  
Vol 734-737 ◽  
pp. 2222-2225
Author(s):  
De Shuai Sun ◽  
Long Fang ◽  
Tao Liu
Keyword(s):  
Reactive Dyes ◽  
Dyeing Wastewater ◽  
Dyeing Process ◽  
Ultrasound Energy ◽  
Remazol Red ◽  
Experimental Findings

Ultrasound energy could strengthen the adsorption of dyes on fiber. The acceleration efficiency of ultrasound was investigated by dyeing cotton with reactive dyes. The experimental findings showed the accelerative efficiency of ultrasound decreased with the prolongation of dyeing time and increment of dyeing temperature. Ultrasound exhibited a better acceleration effect in high dye concentration. The use of ultrasound reduced about 27.2% Remazol red RGB and 50.3% Remazol yellow 3RS in dyeing wastewater.

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