Photocatalytic Degradation of Synthetic Textile Effluent by Modified Sol-Gel, Synthesized Mobilized and Immobilized TiO2, and Ag-doped TiO2

Akram, Tayyaba; Ahmad, Nasir; Sheikh, Irfan Ahmed

doi:10.15244/pjoes/62102

Cited by 9 publications

(6 citation statements)

References 65 publications

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“…Performance of the catalyst was evaluated by degradation (COD removal percentage) and decolorization (colour removal percentage) of synthetic textile effluent (Remazol red RGB dye containing 10 ppm concentration, pH3) through mobilized and immobilized TiO 2 and Ag-doped TiO 2 under UV (400W) irradiation for 60 mins. For this purpose we used a double-walled rectangular box reactor (double walled horizontal glass reactor) [1].…”

Section: Methodsmentioning

confidence: 99%

“…TiO 2 and Ag-doped TiO 2 catalyst was synthesized through two routes of sol-gel method M1 and M2 for mobilized and immobilized application, respectively (these routes are reported in our previous research paper [1]). The synthesis of the catalyst and doping process was carried out by following a modified sol-gel method and then calcinated at 350 o C, 450 o C, 550 o C, 650 o C, and 750 o C [1]. Substrate was prepared and coating the thin film catalyst was carried out by standard slurry coating method [1,42].…”

Section: Synthesis and Doping Process Of The Catalystsmentioning

confidence: 99%

“…The synthesis of the catalyst and doping process was carried out by following a modified sol-gel method and then calcinated at 350 o C, 450 o C, 550 o C, 650 o C, and 750 o C [1]. Substrate was prepared and coating the thin film catalyst was carried out by standard slurry coating method [1,42].…”

Section: Synthesis and Doping Process Of The Catalystsmentioning

confidence: 99%

“…A magnetic stirrer (0-1400 rpm) for continuous mixing of the effluent, analytical balance (Sartorius, BL 210S), oven (maximum range 250ºC), furnace. Characterization of the catalyst calcinated at 350ºC, 450ºC, 550ºC, 650ºC, and 750ºC was carried out by a Rigaku X-ray powder diffractometer (D-maxIIA, Rigaku, Japan), photocatalytic degradation was carried out in a double-walled rectangular box reactor (doublewalled horizontal glass reactor [1].…”

Section: Equipment and Instrumentationmentioning

confidence: 99%

“…In this study, TiO 2 and Ag-doped TiO2 were used for the photcatalytic degradation of synthetic textile effluent. TiO 2 and Ag-doped TiO 2 catalyst were synthesized through two routes of sol-gel method (M1 and M2 reported in our previous study) for mobilized and immobilized utilization purposes [1], and characterization of the catalysts was carried out through X-ray diffrectrometric analysis. XRD patterns showed that catalysts synthesized by both routs of sol-gel method were initially found in amorphous form as no peak appeared in an X-ray diffractrogram at 0ºC calcination (catalyst without calcinations), whereas with an increase of temperature the amorphous form of catalyst turned into crystalline.…”

mentioning

confidence: 99%

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Characterization and Optimization of Photocatalytic Activity of Sol Gel-Synthesized TiO2 and Ag-doped TiO2 through Degradation of Synthetic Textile Effluent by UV Lamp-Assisted Experimental Setup

Akram

Ahmad

Shaikh

2019

Pol. J. Environ. Stud.

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The textile industry is one of the largest producers of harmful effluent, and this has become a serious threat to the environment when disposed of into water bodies, which may lead to high pollution risk -especially in developing countries. There are several treatment methods ranging from conventional to advanced for treating textile effluent before disposal in the environment. Photocatalytic oxidation (AOPs) is the most sophisticated process among all other advanced oxidation processes. In this study, TiO 2 and Ag-doped TiO2 were used for the photcatalytic degradation of synthetic textile effluent. TiO 2 and Ag-doped TiO 2 catalyst were synthesized through two routes of sol-gel method (M1 and M2 reported in our previous study) for mobilized and immobilized utilization purposes [1], and characterization of the catalysts was carried out through X-ray diffrectrometric analysis. XRD patterns showed that catalysts synthesized by both routs of sol-gel method were initially found in amorphous form as no peak appeared in an X-ray diffractrogram at 0ºC calcination (catalyst without calcinations), whereas with an increase of temperature the amorphous form of catalyst turned into crystalline. Results showed that TiO 2 synthesized by the sol-gel route showed anatase phase at 350ºC, and peaks kept growing until 550ºC. Furthermore, at 650-750ºC anatase and rutile co-exist, while in Ag-doped TiO 2 , anatase appeared at 350-450ºC and at 550ºC anatase phase/silver co-existed, whereas at 650-750ºC anatse-silver-rutile co-existed. An X-ray diffractrogram showed that catalyst synthesized through the 2 nd sol-gel route also possessed an amorphous nature at 350ºC and peaks of anatase phase of TiO 2 appeared at 450ºC and kept growing sharper as temperature increased from 450-750ºC, whereas anatase peaks detected at 350ºC in Ag-TiO 2 , and anatase-silver co-existed at 450ºC and 550ºC. Hence, anatase disappeared *

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Section: Methodsmentioning

confidence: 99%