Currently Published Papers in Green Chemistry

Use of Leucaena Leucocephala

Hemlata Raikwar and Dr. Anita Chowbey

Leuceana lucocephala is a small tree originated and scoped as a weed in tropical and warm temperate region of other countries in India .it mostly cultivated for its fodder fuel, timer and other important uses like huge plant, green manure, food for animal and like a bio energy crop. Leucaena Leucocephala, commonly called subabul in the locality of Vidisha district, has considered for crop intensification .Leucaena Leucocephala has also considered among the fast-growing, multipurpose nitrogen-fixing trees, hence, it has  regarded by  the nickname “Miracle tree”. In recent years, subabul has become popular among farmers in the southern states also due to its ability to produce pulpwood within a three to five years. on this basis, leucaena  leucocephala was selected as potential pulping raw material and alternative source fiber for making the paper. The Leuceana Leucocephala plant has high nutritive content like carbohydrats, protein and fat as alfalfa.it is used as a raw material for making paper, agriculture implements and the seed oil could be used as biofuel by blending with the conventional diesel.

Green Chemistry: An Efficient Synthesis and Antimicrobial Activity of Disubstituted 3,4-dihydro-2H-1,3-thiazin-4-ones

Esam A. Ishak, Tamer El Malah and H. M. A. Abdelzaher

An efficient and greener approach has been developed for the Synthesis of 6-arylamino-5-cyano-2, 3-dihydro-1,3-thiazin-4(1H)-ones, using Lemon juice as a natural catalyst. It was prepared via condensation of 3-arylamino-2-cyano-3-mercaptoacrylamides with various of aldehydes. The reaction proceeded in short period of time with excellent yields  All the synthesized compounds were evaluated for their anti-bacterial and antifungal activities.

Impact of hydrogen sulfide gas on environment

R. P. Prajapati

Hydrogen sulfide is an environmentally hazardous gas which is a by-product of many industrial processes such as oil refining, gas processing and wastewater treatment facilities. It can be found in many gas streams which are used as energy sources or chemical feedstocks. Industrially, even low amounts of this compound can affect the process efficiency and equipment life in industry. Hydrogen sulfide is an extremely toxic and irritating gas. It can affect the human health if it is inhaled or it comes in contact with eyes, skin, nose or throat. Oxidation of hydrogen sulfide and its incineration produce sulphur dioxide (SO2) which can be converted to sulphuric acid (H2SO4) with water and is one of the main reasons for acid rain [1-2]. Acid rain causes acidification of lakes and streams that kills aquatic animals and in addition, accelerates the soil erosion and decay of building materials and paints. For minimization of H2S gas on environment need to proper control of sulphur related compound and their raw materials which used in industry, for production of different materials. For the oxidation of H2S to sulphur activated carbon is best and effective catalyst for direct oxidation of hydrogen sulfide because of cheap and abundant precursors, highly developed porosity, and flexible surface chemistry [4-5]. Using this in air no bulky or waste material produces and requires no further purification. In other hand, microbiological oxidation can be used for feed with low H2S concentration by oxidizing hydrogen sulphide to elemental sulfur or to sulphate by using dissolved oxygen, metal oxides (e. g. iron oxyhyroxides and manganese oxides) or nitrate as oxidant. A variety of technologies are available to minimize H2S gas on environment from their sources [6-9]. The hydrogen sulfide can be minimizing by physical, chemical and biotechnological methods. Generally biotechnological methods are cheap and give higher efficiency and do not require any secondary treatments compared to the others methods. 

Corrosion Inhibitors Based on Antibacterial Drug’s for Protection of Mild Steel Corrosion in different corrosive acid medium

Suraj B. Ade and N.V. Shitole

Corrosion inhibition of antibacterial drugs was evaluated using weight loss method in 0.1M, 0.01M and 0.001M (HCl, HNO3 and H2SO4) a different corrosive acid medium solution for mild steel. It was found that the antibacterial drugs had a promising inhibitory action against corrosion of mild steel. Thus inhibition efficiency was obtained of various antibacterial drugs. Antibacterial drug’s showed high surface activity. Increasing the surface activity of the inhibitor solutions is accompanied by an increase in corrosion inhibition efficiency. The purpose of this study is to understand the inhibitor behaviour of specific drug against mild steel corrosion and their adsorption mechanism on the surface.

Zooplankton distribution in river Narmada at  Hoshangabad, Madhya Pradesh. India

Priyanka Upadhyay, Vipin Vyas and Kamlesh Borana

The present paper deals with the zooplankton composition, seasonal fluctuation and diversity indices in river Narmada, Hoshangabad from September 2014 to February 2016. The zooplankton composition of river Narmada at eight sampling stations were composed 38 species belonging to 4 group viz. Rotifer, Copepoda, Protozoa and Cladocera. The zooplankton community was dominated by Rotifers (71%) followed by Copepods (13%), Protozoans (11%) and Cladocerans (5%). Several types of indices such as dominance index (Simpson, 1949) varied from 0.5529 to  0.80488 while Shannon’s diversity index 1.08872 to 1.955 and Margalef’s index of river Narmada varied from 1.0916 to 2.34333 were calculated. The dominance of Brachionus is an indication that the high levels of organic matter in the river.