2013
DOI: 10.3329/bjsir.v47i4.14075
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Preparation and characterization of rice husk ash (RHA)-TiO2 / ZnO composites and its application in treating effluents from textile industries

Abstract: Photocatalytic composite materials incorporating the photocatalysts (TiO2, ZnO) with rice husk ash (RHA) have been developed to investigate the photodegradation of real textile dye effluent. The structural characterization of the composite materials was performed using XRD (X-Ray Diffractometer). The characteristic XRD peaks together with the 2? values for both TiO2 and ZnO were in excellent agreement with the standard JCPDS d-values. The efficacy of these composites was examined through the degradation of a t… Show more

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Cited by 10 publications
(4 citation statements)
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“…The XRD pattern of wood ash exhibited an intense peak at 2θ = 23.5 • as well, this result is characteristic of the amorphous silica and aluminosilicate, which is a component commonly found in ash from burning coal and/or biomass [28,44,45]. Additionally, it is possible to observe an intense peak at 2θ = 29.7 • , which indicates the presence of CaCO 3 (JCPDS 47-1743), which is a compound normally found in the composition of biomass ash [46,47].…”
Section: X-ray Diffraction (Xrd)mentioning
confidence: 80%
“…The XRD pattern of wood ash exhibited an intense peak at 2θ = 23.5 • as well, this result is characteristic of the amorphous silica and aluminosilicate, which is a component commonly found in ash from burning coal and/or biomass [28,44,45]. Additionally, it is possible to observe an intense peak at 2θ = 29.7 • , which indicates the presence of CaCO 3 (JCPDS 47-1743), which is a compound normally found in the composition of biomass ash [46,47].…”
Section: X-ray Diffraction (Xrd)mentioning
confidence: 80%
“…interval); (iii) dose of photocatalyst (0.25, 0.50 and 0.75 g); (iv) pH (2.05, 4.14, 6.02, 8.03, 10.04, 12.00) of targeted dye solution as adjusted either by HCl or NaOH. Experimental protocol was similar to our previous approach (Ahmed et al 2011;Kabir et al 2012). However, briefly, 100 mL of MB solution with requisite amount of photocatalyst was introduced in the batch reactor (made of pyrex) and exposed to illumination.…”
Section: Treatment Of Mb Using Hap-tio 2 -Zno Composite Under Illuminmentioning
confidence: 99%
“…The reason behind getting such attention is the high competency and easy-to-use operating procedure of photocatalytic process over the traditional biological and physico-chemical methods,e.g.adsorption, membrane filtration, coagulation, reverse osmosis, air stripping etc. (Ahmed et al, 2011;Kabir et al, 2012) However, among the semiconductors, due to their high photosensitivity, large band gap and non-toxic nature of bare TiO 2 and ZnO, have already used as photocatalysts (Ahmed, 2013). In addition to single formatted photocatalyst, recently composite or hybrid format of photocatalyst have been explored by the researchers (Guanghong et al, 2011;Juan et al, 2013;Laila et.…”
Section: Introductionmentioning
confidence: 99%
“…Current literature is gaining attention to valorize the agriculture waste beside various capabilities of modifying the TiO 2 photo-catalysts. [11][12][13][14] Rice straw (RS) is a rice by-product produced when harvesting paddy. Each kg of milled rice results in roughly 0.7-1.4 kg of rice straw depending on varieties, e.g., cutting-height of the stubbles and moisture content during harvest, etc.…”
Section: Introductionmentioning
confidence: 99%