Synthesis of La:Co:TiO&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; Nanocomposite and Photocatalytic Degradation of Tartaric Acid in Water at Various Parameters

Kumar, Azad

doi:10.11648/j.nano.20170504.11

Cited by 7 publications

(4 citation statements)

References 41 publications

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“…The oxidation rates and efficiency of the photocatalytic system are highly dependent on a number of operational parameters that govern the photodegradation of the organic molecule [30][31][32][33][34]. Several study have been reported the significance of operational parameter.…”

Section: Factors Influencing the Photocatalytic Degradationmentioning

confidence: 99%

A Review on the Factors Affecting the Photocatalytic Degradation of Hazardous Materials

Kumar

Gajanan

ey³

2017

MSEIJ

Self Cite

211

124

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The oxidation rates and efficiency of the photocatalytic system are highly dependent on a number of operational parameters that govern the photodegradation of the organic molecule. Several study have been reported the significance of operational parameter. The photodegradation depends on the some basic parameters which are concentration of substrate, amount of photocatalyst, pH of the solution, temperature of reaction medium, time of irradiation of light, the intensity of light, surface area of photocatalyst, dissolve oxygen in the reaction medium, nature of the photocatalyst, nature of the substrate, doping of metal ions and non metal and structure of photocatalyst and substrate. The photodegradation of organic compound have been studied by the several scientists and conclude the optimum conditions for the photodegradation of organic compound.The photodegradation of organic compounds was found maximum at low concentration of organic substrate with optimum amount of photocatalyst. The pH of the solution is also affect the photodegradation of organic substrate. The Titania show the maximum adsorption at low pH hence the photodegradation also found maximum at low pH. The surface area is the crucial factor for the photodegradation of organic substrate. If we are increasing the surface area of photocatalyst, the photodegradation of organic substrate increase. This is because that the number of active site increased with increasing the surface area. The amount of photocatalyst is the primary requirement of any photocatalysis process. The amount of photocatalyst should be optimum, if we take the high amount of photocatalyst the photodegradation is decreased, if we take the low amount of photocatalyst the photodegradation also decreased. The doping of metal ions and non-metal ions affect the photodegradation of organic substrate. Therefore, we have to use the metal ions which increased the positive charge on the surface of photocatalyst. The temperature and irradiation of light also affect the photodegradation of organic substrate. For the maximum photodegradation, the photocatalytic reaction should perform at room temperature not greater than 80 °C. The light of irradiation should be used which exit the electron easily from valence band to conduction band or equal to band gap energy. Keywords: A Review on the Factors Affecting the Photocatalytic Degradation of Hazardous Materials 2/10Copyright: ©2017 Kumar et al. for the removal of pollutants at high concentrations. The biological treatments are very slow, dispose large amount of sludge and required strict control of proper pH and temperature [21]. In this regard photo catalytic processes have advantages for the removal of pollutants even at low concentration for industrial waste water [22]. Moreover in photo oxidation, complete oxidation of organic pollutants take place within few hours, even at ppb level, without formation of secondary hazardous products using highly active and cheap catalysts which can be used in specially design reactor systems [23].Ti...

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Section: Factors Influencing the Photocatalytic Degradationmentioning

confidence: 99%

A Review on the Factors Affecting the Photocatalytic Degradation of Hazardous Materials

Kumar

Gajanan

ey³

2017

MSEIJ

Self Cite

211

124

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“…Lignocellulosic biomasses are produced in large quantities as products and by-products from the agricultural and forestry sectors. 91 In some instances, as in agricultural activities, crop residues left over after harvesting are treated 134 Figure 11. Structures of (A) SNF; 135 (B) SMF condensates.…”

Section: Biomass Raw Materials For Concrete Water Reducersmentioning

confidence: 99%

Production of bio‐based concrete water reducers from renewable resources: a review

Johnson

Sosa

Arredondo

et al. 2023

Biofuels Bioprod Bioref

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Concrete is a valuable construction material with high mechanical strength and durability, used extensively in the construction industry. It is produced by mixing sand, stones, cement, and water in different proportions depending on the desired quality of the final product. Water reducers are additional chemical ingredients used in concrete to reduce the quantity of water required in the concrete mixture. When added to concrete, water reducers increase the workability and flowability of concrete in the freshly mixed state and improve the mechanical strength and durability of the final hardened product. This review paper describes the different types and applications of concrete water reducers used in the construction industry including their working mechanisms and fluidity effects on concrete properties. It discusses the production of synthetic and bio‐based concrete water reducers and reviews the present challenges involved in the preparation of bio‐based concrete water reducers from renewable resources. © 2023 Society of Industrial Chemistry and John Wiley & Sons Ltd.

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“…In this study, photocatalytic degradation of Citric Acid was investigated. The measured values of residual concentration of Acid in the reaction mixture at different times of illumination (or reaction time) have been shown in Figures 6 (I, II, III and IV) [45][46][47][48][49][50][51][52][53].…”

Section: Photo-degradation Of Citric Acidmentioning

confidence: 99%

“…This is because of the surface area of La:Ni:TiO 2 nanocomposite is greater than TiO 2 . Hence La:Ni:TiO 2 nanocomposite is absorbing the more photon on its surface than TiO 2 [49,50,53]. Hence the adsorption of the Citric Acid molecule on the surface of photocatalyst increased and photodegradation of Acid become increase.…”

Section: Effect Of Photocatalyst and Their Amountmentioning

confidence: 99%

Photocatalytic Degradation of Citric Acid in Wastewater in Presence of Visible Light by La:Ni:TiO<sub>2</sub> Nanocomposite

Kumar¹

2017

NANO

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In this study, nanocomposites of La:Ni:TiO 2 nanocomposite was prepared by the co-precipitation method. The material was found in the nano dimension by the SEM and TEM analysis. The rutile and anatase both phases were present in XRD analysis of the synthesized materials. The particle size was found 24 and 82 nm in the case of La:Ni:TiO 2 nanocomposite and pure Titania respectively. The surface area of Titania and La:Ni:TiO 2 nanocomposite were found 6.4 and 43.2 m 2 /g. The band gap energy of Titania and La:Ni:TiO 2 nanocomposite were found 3.2 eV and 3.0 eV respectively. The photodegradation of Citric Acid was investigated at different parameters such as temperature, concentration, pH of the reaction mixture, the dose of photocatalyst and time of illumination of visible light. The photodegradation of Citric Acid occurs 60-90% in presence of La:Ni:TiO 2 nanocomposite, while in presence of titania 10-18%. It is found that photodegradation of Citric Acid follows the first order kinetics.

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Synthesis of La:Co:TiO<sub>2</sub> Nanocomposite and Photocatalytic Degradation of Tartaric Acid in Water at Various Parameters

Cited by 7 publications

References 41 publications

A Review on the Factors Affecting the Photocatalytic Degradation of Hazardous Materials

A Review on the Factors Affecting the Photocatalytic Degradation of Hazardous Materials

Production of bio‐based concrete water reducers from renewable resources: a review

Photocatalytic Degradation of Citric Acid in Wastewater in Presence of Visible Light by La:Ni:TiO<sub>2</sub> Nanocomposite

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Synthesis of La:Co:TiO&lt;sub&gt;2&lt;/sub&gt; Nanocomposite and Photocatalytic Degradation of Tartaric Acid in Water at Various Parameters

Cited by 7 publications

References 41 publications

A Review on the Factors Affecting the Photocatalytic Degradation of Hazardous Materials

A Review on the Factors Affecting the Photocatalytic Degradation of Hazardous Materials

Production of bio‐based concrete water reducers from renewable resources: a review

Photocatalytic Degradation of Citric Acid in Wastewater in Presence of Visible Light by La:Ni:TiO&lt;sub&gt;2&lt;/sub&gt; Nanocomposite

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Synthesis of La:Co:TiO<sub>2</sub> Nanocomposite and Photocatalytic Degradation of Tartaric Acid in Water at Various Parameters

Photocatalytic Degradation of Citric Acid in Wastewater in Presence of Visible Light by La:Ni:TiO<sub>2</sub> Nanocomposite