Yogesh C Sharma

Yogesh C Sharma
Indian Institute of Technology (Banaras Hindu University) Varanasi | BHU · Department of Applied Chemistry

Ph.D.; D.Sc.; FRSC; FBRS;FIAPS;FISEES

About

271
Publications
91,284
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11,319
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Introduction
Renewable Energy: Synthesis and characterization of biodiesel, algal bio diesel, Biorefineries -Synthesis & characterization of catalysts for biodiesel synthesis -Ethanol steam reforming -Climate change: Development materials for carbon dioxide sequestration Water/Wastewater Treatment: -Monitoring of Water/wastewater, quality assessment, modeling & remediation using physicochemical methods - Development of low cost adsorbents/nano adsorbents/magnetic nanosorbents for water remediation
Additional affiliations
December 2016 - May 2021
Indian Institute of Technology (Banaras Hindu University) Varanasi
Position
  • Professor
Description
  • Teaching, Research, Administration

Publications

Publications (271)
Article
This work reports the reactivity of Mg containing spinels like MgCr2O4 and MgV2O4 for synthesis of glycerol carbonate from bio-glycerol on the basis of their structural, morphological and catalytic properties. Metal oxides having spinel structure exhibit very amazing catalytic properties due to their unique crystal structure and multiple properties...
Article
Full-text available
In the present study, experimental analyses were conducted by using biodiesel derived from second-generation feedstock. In terms of cost and accessibility, second-generation feedstock has gained more attention due to its environmental approach. Waste-cooking-oil-derived methyl ester was produced through a transesterification reaction in the presenc...
Article
Full-text available
In the present work, pond clay was modified with lanthanum and applied for fluoride uptake from an aqueous environment. The clay soil was treated with a 0.1 M solution of lanthanum oxide and heated at 500 ℃ for 90 min in a muffle furnace. The modified clay was characterized by the following techniques: particle size analysis, zeta potential, Fourie...
Article
The nanocrystalline Bi2O3 powder was synthesized by ultrasonicated microwave irradiation by employing centrifugation technique at all normal conditions. Fabrication of thick films of pure Bi2O3 powder was made by screen printing and firing at 400oC for 30 min. Surface activations of the films involved the dipping of pure films into 0.01M aqueous so...
Article
Hydrogen production through photocatalytic water splitting under visible-light irradiation is an appealing approach to generate clean and economical renewable energy resources. The key challenge in this field of research is to design and engineer cost-effective, green, and efficient photocatalysts. Recently, carbon-based photocatalysts have attract...
Chapter
Currently, severe contamination of water bodies has led to the scarcity of usable water for drinking and other purposes. The heavy emergence of pollutants in the aquatic environment ranging from ng/l to mg/L is just a consequence of drastic and speedy anthropogenic activities. As compared to developed countries, developing countries, in general, fa...
Article
This review article represents the comparative study of heavy metal concentration in water and sediments of 43 important global rivers. The review is a solitary effort in the area of heavy metal contamination of river-sediments during last ten years. The interpretation of heavy metal contamination in sediments has been verified with different indic...
Chapter
The drastic population explosion has enhanced the demand of food supply in large quantity. This has pressurized the manufacturing units involved in agriculture sector to accelerate its working efficiency for maximum food production using minimum raw materials so that mass across the globe can be served in economical way. In this direction, Nanotech...
Preprint
Full-text available
The valorization of waste frying oil (WFO) to biodiesel has been carried out via solid base catalyzed transesterifi-cation reaction. A novel potassium tin oxide (KSO) catalyst was synthesized via polymer precursor auto combustion method. The catalyst showed the best physicochemical properties when it was calcined at 800°C. Using KSO 800 catalyst, t...
Article
Background Glycerol carbonate, an essential value-added product obtained from biodiesel byproducts, has diverse utilizations in pharmaceuticals, food, cosmetics, and chemical industries. The high price of glycerol carbonate constrains its remarkable applications; thus, research society has effectively focused on the synthesis of such compounds. Me...
Chapter
Globally, the demand for clean energy has been cited among the top unprecedented vital issues. The present chapter succinctly reviews the current research advancement of nano-carbon-ZnO nano-composites for the supercapacitor (SCs) applications for addressing energy storage. Today, there is rapid rise in the demand for developing hybrid SCs to overc...
Article
In this work we focused on clean catalytic approach of efficient CaO/TiO2 green nano particles derived from waste chicken eggshells with inorganic support TiO2 for glycerol carbonate synthesis. The designed nano catalysts were characterized using several chemical and spectrochemical techniques like XRD, FE-SEM, TGA-DSC, FT-IR BET-BJH methods. The c...
Article
The dramatic increase in biodiesel plant leads to oversupplied glycerol as its by product which requires industrial application for sustainability of biodiesel. The main focus of this study is the proper utilization of industrial waste pond ash for the preparation of various catalysts for the synthesis of glycerol carbonate . A series of catalysts...
Chapter
This chapter includes discussion on factors affecting adsorption of essential elements. The requirement of these metals in human diet is required for some functions as follows: cobalt is a part of vitamin B12, copper is a part of several metalloenzymes such as cytochrome c oxidase, manganese deficiency is associated with skeletal abnormalities, sel...
Chapter
Fluoride in small concentrations prevents tooth decay, but its exposure in higher concentration causes fragile bones and decrease in fertility. Nitrate is among the chief factors in eutrophication, and perchlorate causes hindrance of iodine uptake by the thyroid gland. This chapter includes factors affecting the adsorption of anions such as fluorid...
Chapter
This chapter presents detailed information on a variety of materials employed as adsorbents for the remediation of water containing hazardous organic and inorganic contaminants. The adsorption of contaminants occurs through a variety of mechanisms such as physical adsorption, ion exchange, electrostatic interaction, surface complexation, and precip...
Chapter
This chapter includes the effects of parameters such as ionic strength and adsorbent dose on the batch adsorption process. These factors usually affect in the same way for most metal anions, for example, increase in percentage removal with increase of adsorbent dose and decline in initial concentration of the metals and anions. The ionic strength e...
Chapter
This chapter includes factors affecting the adsorption of essential elements such as iron, minor toxic metals such as cesium and elements such as scandium, titanium, gallium and germanium whose toxicity is still unknown. The increase of iron content in the body leads to cardiovascular disease and exposure to nonradioactive cesium causes irritation...
Chapter
This chapter includes a discussion on factors affecting the adsorption of major toxic elements. The majority of these elements find their application in industrial uses. However, these elements are nonessential for human body and do not find any metabolic role in the body. Hexavalent chromium, vanadium pentoxide, radioactive strontium, cadmium, ino...
Chapter
The kinetic and isotherm data can be fitted by either linear curve fitting or nonlinear curve fitting. The kinetic and isotherm model can be estimated by the coefficient-of-determination values, chi-square values, and closeness of experimental and theoretical data. The concentration also alters the kinetics of the adsorption process. The rate of ad...
Book
Full-text available
Adsorption is one of the method that is in use for remediation of contaminated water. The experimental factors affecting the batch mode of adsorption of various metals and inorganic anions are discussed in this book. The elemental contaminants have been categorized into four major categories i.e. major toxic elements; essential elements having toxi...
Article
In the present study, Mentha plant ash was modified by Na and Al for the synthesis of adsorbent and applied for the removal of Fluoride from an aqueous solution. Mixture of acid washed Mentha plant ash (MPA) and NaOH (in the ratio 1:1.3) thermally treated at 600°C in a muffle furnace then treated with aqueous solution of sodium aluminate. The chara...
Article
Full-text available
The biodiesel obtained from nonedible and waste-cooking oils through the transesterification process has been recognized as a renewable energy source. This transesterification process produces glycerol as the main byproduct. Glycerol and its derivatives have a lot of applications in the pharmaceutical industry, organic synthesis, and the cosmetic i...
Article
The β-Strontium silicate (β -Sr2SiO4) was synthesized by physicochemical methods and was used as a heterogeneous catalyst in biodiesel production from microalgal oil (-Spirulina platensis) by transesterification process. The physical and chemical properties of the catalyst were analysed using TGA, XRD, ATR-FTIR, SEM-EDX, and surface area analyser....
Article
Glycerol carbonate is one of the trending value added chemicals in biodiesel industry, which extensively used in pharmaceutical, cosmetic and food industries as well as green solvent in chemical industries. Depending upon the tremendous application of glycerol carbonate the synthesis of such compound from glycerol as by-product of biodiesel is the...
Article
Nanotechnology has several applications in food industry and it significantly helps in characterization, fabrication, and manipulation of nanostructures. The nanostructures improve the solubility of food ingredients in vivo, along with enhancement in their bioavailability and controlled release at the target site. These nanostructures also serve as...
Article
The aims of this study were to assess the biodiversity of periphytic diatom assemblages in fresh, brackish and marine waterbodies of Korea, and to assess the effect of environmental and anthropogenic factors on parameters such as the quantity and biovolume of lipid bodies and deformations of diatoms as early warning measures of anthropogenic impact...
Article
Synthesis of iron oxide was performed at different molar concentrations along with removal of chromium. The magnetite, maghemite and haematite mixture synthesised in all samples. Only Raman analysis deciphered the synthesis of haematite among all characterisation techniques applied. TEM image suggested the particles were round, irregular in shape a...
Article
Full-text available
Spirulina is a potential feedstock for biofuel production and rich source of other valuable products such as lipid, reduced sugar and protein content. The aim of this study is to achieve the maximum lipid yield and other value added products from lipid extracted Spirulina by using different techniques. The parameters, pre-treatment of ultra sonicat...
Article
Full-text available
Biodiesel was prepared at laboratory scale via transesterification reaction from waste cooking oil using Sr-Ti mixed metal oxide as a heterogeneous base catalyst. The solid base catalyst was synthesized by polymer precursor method. The most efficient active phase of catalyst was explored by varying the Sr/Ti atomic ratio in mixed metals oxides. The...
Article
Large scale production of biodiesel from a lignocellulosic biomass using an efficient heterogeneous catalyst has several benefits like low production cost, reduction in CO2 emission along with other greenhouse gases, agricultural development and assurance of future energy supply. In present study, a solid base catalyst named as potassium (K) promot...
Article
Full-text available
The current policies of govt. of India on biodiesel production and commercialization have encouraged to explore this area widely. In this study barium stannate perovskite was synthesized to evaluate its activity and stability as a solid base catalyst in biodiesel synthesis from waste cooking oil (WCO). Physicochemical characterizations of the catal...
Article
The present study includes the transesterification reaction of waste glycerol produced in biodiesel industries with dimethyl carbonate (DMC) in presence of magnesium nickel-based mixed oxide, an economically and highly potent cost-effective heterogeneous base catalyst. The catalyst was synthesized in different molar ratios via co-precipitation rout...
Article
Full-text available
In recent years, the biological synthesis of silver nanoparticles (AgNPs) from microorganisms has become an emerging trend for developing biocompatible nanomaterials that finds applications in nano and biomedical sectors. In the present study, we demonstrated a facile, green and eco-friendly method for AgNPs synthesis using the endophytic fungi (Co...
Chapter
Increasing global demand of fossil fuel and harmful pollutant emitted by petroleum-fuelled internal combustion (IC) engines are two major concern for Indian transport sector, which require an immediate action to explore the alternative fuels such as biofuels, biodiesel, alcohols, etc. This book is based on such alternative fuels and covers differen...
Book
This book covers alternative fuels and their utilization strategies in internal combustion engines. The main objective of this book is to provide a comprehensive overview of the recent advances in the production and utilization aspects of different types of liquid and gaseous alternative fuels. In the last few years, methanol and DME have gained si...
Article
Research on biodiesel production from waste material and lignocellulosic biomass using heterogeneous catalyst has been studied throughout the world to achieve a sustainable source of fuel. Heterogeneous base-catalyzed transesterification attracts more attention as it overcomes the flaws regarding homogeneous catalysis. In this study, potassium (K)...
Article
Present study aim to synthesize biodiesel using a heterogeneous base catalyst, barium aluminate (BaAl2O4) and used vegetable oil (UVO) feedstock via transesterification reaction. The catalyst was synthesized using co-precipitation route and characterized using techniques TG-DT analysis, XRD, FTIR, HRSEM-EDX, textural properties, and basicity. The b...
Article
Full-text available
The present study explores the feasibility of Sr-Ce based mixed metal oxides for its performance in transesteri-fication reaction of waste cooking oil. The catalyst synthesis was carried out through gel combustion route and was characterized through several techniques including thermal analysis (TGA-DTA), X-ray diffraction (XRD), attenuated total r...
Article
The present work explores the adsorption potential of γ-alumina, a nanoadsorbent for abatement of Ni(II) from aqueous solutions. A response surface methodological approach was adopted to investigate the major operating variables and optimization of experimental conditions. The predicted values of responses obtained using the response function were...
Article
Barium cerate, a novel solid base catalyst was employed in transesterification reaction for biodiesel production. The catalyst was characterized by Thermogravimetric analyses, powder X-ray Diffraction, Scanning Electron Microscopy attached with energy dispersive unit, Fourier Transform Infrared Spectroscopy. Karanja oil was used as non-edible feeds...
Article
In this study, Anabaena PCC 7120 microalgae is used as feedstock for biodiesel synthesis. Anabaena 7120 was cultivated in a closed photobioreactor. Oil was extracted by cell disruption process and purified by degumming process. Anabaena oil was characterized by GCMS spectroscopy. Barium titanium oxide (Ba 2 TiO 4 ) heterogeneous catalyst was prepar...
Article
Arsenic contamination has threatened water safety due to its high toxicity and carcinogenicity. Therefore, it is urgent and significant to develop simple and effective approach for dearsenification of drinking water. In present study, Zn/Ce bimetallic oxide particles of various atomic ratios were synthesized by sol-gel process and were applied for...
Article
Full-text available
The present work explores the adsorption potential of γ-alumina, a nanoadsorbent for abatement of Ni(II) from aqueous solutions. A response surface methodological approach was adopted to investigate the major operating variables and optimization of experimental conditions. The predicted values of responses obtained using the response function were...
Article
Spirulina platensis was cultivated in a vertical aligned photobioreacter for biodiesel synthesis. The algal culture was harvested by centrifugation and the biomass was dried in oven. The oil was extracted by solvothermal in microwave at 60°C for 30 min and 750 w. The mixed metal oxide (Barium-calcium-Zinc) heterogeneous catalyst was synthesized and...
Article
Full-text available
An laboratory-scale experimental study has been performed to evaluate the physicochemical characterization and exhaust gas emissions of algal oil methyl ester blends (biodiesel + diesel) and pure diesel fuel on a single cylinder, VCR diesel engine at varying load (0, 3, 6, 9 and 12 Kg) and CRs (13, 14, 15, 16 and 17) conditions. The algal oil obtai...
Article
Full-text available
The removal of gummy or mucilaginous substances from vegetable oils, commonly known as degumming, is required for the use of crude vegetable oils as the feedstock for biodiesel production. These gums reduce the rate of transesterification reactions by deactivation of the catalyst and they hinder the separation of the glycerol phase from the biodies...
Article
The renewable hydrogen generation through ethanol steam reforming is one of the anticipated areas for sustainable hydrogen generation. To elucidate the role of Ni and Co with ZSM-5 support, catalysts were prepared by wet impregnation method and ethanol steam reforming (ESR) was performed. The catalysts were characterized by HR-XRD, ATR–FTIR, HR-SEM...
Article
A heterogeneous catalyst, magnesium zirconate (Mg 2 Zr 5 O 12) was synthesized by co-precipitation and was used for biodiesel production via transesterification. Kusum oil was used as a feedstock. Catalyst characterization was accomplished by TGA, XRD, ATR FTIR, SEM, and EDX. The parameters viz. particle size, zeta potential, BET surface area and b...
Article
In present study, low cost single phase potassium aluminum oxide (K2Al2O4) was synthesized by solid state route and used as catalyst for production of biodiesel from a rural feedstock kusum oil via methyl transesterification reaction. The prepared catalyst was characterized by various techniques. Feedstock comprises high fatty acid content 20.19 mg...
Article
An experimental investigation was conducted on a single cylinder, VCR diesel engine for various biodiesel-diesel blends with varying load conditions (0, 3, 6, 9 and 12 kg). Aim of present work was to examine physicochemical characteristics, performance and exhausts emissions of the engine for various load conditions using biodiesel produced from a...
Article
Full-text available
In this study, biodiesel was prepared from a non edible feedstock using two step process followed by heterogeneous base catalyzed transesterification reaction. A novel solid heterogeneous base catalyst (strontium lanthanum mixed metal oxide) was synthesized via co- precipitation route and was characterized by XRD, FT-IR, SEM, and EDX. The free fatt...
Article
A novel green synthesis of cobalt oxide (Co3O4) nanoparticles using latex of Calotropis procera via simple precipitation method at room temperature was investigated. An extensive characterization of the product was carried out using X-ray diffractometry (XRD), Differential scanning calorimetry (DSC), Transmission electron microscopy (TEM), Energy d...
Article
Full-text available
This paper highlights the utility of rice husk ash for the adsorption of Cr(VI) ions from aqueous solutions. Rice husk ash (RHA) is produced when rice husk is burnt for various purposes. Application of Treated Rice Husk Ash (TRHA) as an adsorbent for the removal of Cr(VI) from aqueous solutions has been investigated. For this purpose, RHA was therm...
Article
The aims of this study were to assess the biodiversity of periphytic diatom assemblages in fresh, brackish and marine waterbodies of Korea, and to assess the effect of environmental and anthropogenic factors on parameters such as the quantity and biovolume of lipid bodies and deformations of diatoms as early warning measures of anthropogenic impact...
Article
Calcium aluminium oxide (Ca2Al2O5) was synthesized via solid state method by using calcium carbonate and alumina calcined at 900 °C. The synthesized catalyst was characterized by TGA, XRD, FTIR, SEM, and BET. The particle size analysis and basicity test were also conducted. The catalyst was used for production of biodiesel using waste vegetable oil...
Article
A novel heterogeneous base catalyst, potassium impregnated zinc oxide was synthesized via precipitation method. It was modified by impregnation method and was used for synthesis of biodiesel using waste cooking oil as feedstock. The synthesized catalyst was characterized using various sophisticated techniques. The catalyst having a K/Zn atomic rati...
Article
Hydrogen is being contemplated as the future fuel in view of the abundant availability of hydrogen bearing substances in nature, its high energy content (120.7 kJ/g), and its combustion without creating any environmental pollution. Pollution free sources for hydrogen generation and efficient conversion to useful energy are the two important factors...
Article
Full-text available
The adsorption of Pb²⁺ from aqueous solutions by sorbents based on calcium silicates, obtained in multi-component systems CaCl2–Na2SiO3–H2O (sorbent I) and CaSO4·2H2O–SiO2·nH2O–KOH–H2O (sorbent II), was studied. Surface area of the two sorbents was found to be 100 and 40 m²/g respectively. The sorption capacities of the adsorbent materials were fou...
Article
The present study deals with the synthesis of CuO‐NPs via green route and investigated its application for removal of Cr(VI) from aqueous solutions. The experimental parameters were optimized through Box–Behnken Design (BBD) of response surface methodology for the optimum response. The adsorption equilibrium data was well fitted to Freundlich isoth...
Article
The present study deals with the synthesis of CuO‐NPs via green route and investigated its application for removal of Cr(VI) from aqueous solutions. The experimental parameters were optimized through Box–Behnken Design (BBD) of response surface methodology for the optimum response. The adsorption equilibrium data was well fitted to Freundlich isoth...
Article
High-temperature annealing of hydrated forms of calcium silicate produced in the multicomponent system CaCl2–Na2SiO3–H2O yields the formation of a heterophase structure containing high-temperature phases of pseudo-wollastonite and silica. Under these conditions, it is observed that there is an increase in the calcium silicate crystal lattice energy...
Article
Wastewater treatment and water purification have always posed challenges to mankind and this problem has become severe with escalating population and industrialization. This topic has attracted the global scientific community. Activated carbon adsorption became popular choice for water purification but its high cost prompted scientific workers to s...
Article
Guinea fowl bone derived heterogeneous catalyst was utilized for biodiesel production for the first time on microwave heating system from Annona squamosa (custard apple seed) oil. Synthesized catalyst was characterized by TGA, XRD, FTIR, SEM, EDS, BET surface area and basicity. Optimization for various reaction conditions on FAME conversion was exp...
Article
Full-text available
The cobalt metal catalysts are highly active at low temperature ESR. In this study, ESR was studied over barren Co metal (Co⁰) from oxalate precursor without any pre-reduction to find out its role in hydrogen and carbon nano-filament generation. The ethanol conversion was found to be 100% with 96.5% hydrogen selectivity at 723K. The time on stream...
Article
Full-text available
In recent times, the rate of energy consumption goes on increasing and the world is desperately searching for new sources of fuel. Biodiesel (fatty acid methyl esters) is an alternative renewable energy resource for the next generation. Biodiesel has several advantages which include its non-toxic nature, it is biodegradable and it reduces greenhous...
Chapter
Phytoremediation is currently being envisaged as an ecologically sustainable and economical decontamination technique for polluted sites. Phytoremediation being a slow process limits the utility of the site to an extent for other activities, and therefore valorisation of the biomass produced by some means is very important. Biomass-based energy (bi...
Article
Full-text available
Biodiesel is a clean and sustainable fuel which has ability to replace diesel fuel used in power generation as well in transportation. This article explores Terminalia belerica Robx seed oil as an important bioresource for biodiesel synthesis. Extraction of terminalia oil from dried seeds and degumming of crude oil are also reported. Synthesis of b...
Chapter
Recently algae have received considerable scientific attention as biofuel feedstock. However there are several concerns that remain to be answered about their overall environmental sustainability and economic feasibility. In order to ascertain the suitability of algal biofuels over fossil fuels and biofuels derived from other feedstocks life cycle...
Article
A low cost and high purity calcium oxide (CaO) was prepared from waste crab shells which were extracted from the dead crabs, used as efficient solid base catalyst in the synthesis of biodiesel. Raw fish oil was extracted from the waste parts of fish through mechanical expeller followed by solvent extraction. Physical as well as chemical properties...