Journal of Engineering in Industrial Research
Volume:4 Issue: 4, Oct 2023

In this study, silver was used to doped TiO2 with Azadirachtaindica (neem), Annonamuricata (Soursop leaf), Manihotesculenta (cassava leaf), and Myrianthus arboreus (Coat button leaf) for DSSCs fabrication. The sensitized TiO2/silver with dye recorded an efficiency of 0.49%, 0.03%, 0.05%, and 0.22% for Azadirachtaindica (neem), Annonamuricata (Soursop leaf), Manihotesculenta (cassava leaf), and Myrianthus arboreus (Coat button leaf) respectively. The optical energy bandgap was observed to be 2.32 eV for TiO2 and 2.52 eV, 2.31 eV, 2.49 eV, and 2.51 eV for Neem, Soursop Cassava, and Coat button leaf dye. The structure of the cells is polycrystalline with a most outstanding peak at 2 theta angles of 30.375 o and 30.464 o corresponding to (200) therefore, secondary peaks were noticed at 2 theta angles of 24.891 °, 27.509 o, 32.915 o, 27.509 o, 35.296 o, 38.814 o, 43.152 o, 47.579 o, 53.231 o and 59.130 o for TiO2 and 26.116 °, 27.835 o, 32.667 o, 36.195 o, 39.802 o, 41.926 o, 47.173 o, 52.084 o, and 58.152 o for TiO2/Ag0.1/Neem leaf, TiO2/Ag0.1/soursop leaf, and TiO2/Ag0.1/cassava leaf which corresponds to (101), (004), (105), (211), (204), (116), (220), and (215) and (303) subsequently

One of the most widely utilized and reasonably priced materials in the building and construction industry today is mild steel. However, one unfavorable consequence of the abovementioned materials' destruction has been corrosion. Different types of inhibitors have been used adequately to minimize of control the corrosion rate but failed. Using Materials Studio software, the adsorption of carbamodithionic  acid on an iron surface was investigated by molecular dynamic (MD) modeling and quantum chemical calculations to check its inhibition performance. Results from molecular dynamic simulations showed that the molecule CDA efficiently adsorb on the iron surface at an appropriate geometrical optimization.The results of the molecular dynamic simulation showed that the S4=C1-S3 present in the ring, the heteroatoms (Nand S) and the pi-bonds are the active sites of the molecule.The ring, the nitrogen and sulfur heteroatoms, and the double bonded carbon atoms in the molecule are the active sites of the molecules. According to the quantum chemical calculation based on the natural atomic charge, the frontier molecular orbital, and the Fukui index values. The efficiency of the hetero atoms in terms of the reactivity of the bonds shared with the carbon atom is also demonstrated by bond length evaluated. The molecule has high global softness, EHOMO and lower energy gap values of 2.454, -5.196 and 4.907eV respectively. It can be employed in minimizing corrosion of mild steel in corrosion environments due to its adsorption potentials Additionally, at the temperature under consideration, the molecule's adsorption capacity closely matches the binding energy of the molecule.

In late December 2019, a mysterious pneumonia outbreak characterized by fever, dry cough, and fatigue, and occasional gastrointestinal symptoms occurred in Wuhan, Hubei, China. The existence of a pandemic causes reduced social welfare, income to termination of employment. With uncertain conditions causing changes in people's lifestyles, one of them is becoming a silver human beggar. In Indonesia, there have been numerous silverman beggar phenomena since 2020. The Silver Man is a beggar who intentionally paints his body in silver. In the action, the silver man adds cooking oil to a coloring paste mixture of iron paint or screen printing paint to make it appear glossy. This coloring substance is typically applied all over the body and lasts for at least 12 hours. The use of coloring paste that is contradictory with its designation will result in a variety of health issues. This is because the coloring substance contains several heavy metals. The heavy metals mercury, lead, and cadmium have been detected in five areas in the Surakarta region. This heavy metal content exceeds the safety limit for heavy metals on the epidermis, which is less than 5 mg/Kg. This may result in irritation, anemia, kidney problems, tissue disorders, cancer, and even mortality. Thus, it is necessary to seek out alternatives to reduce exposure to heavy metals.

In this review, three types of highly consumed and widely used medical water will be examined. These investigations will be done by many Iranian and foreign groups and will be as follows. DEPS water is based on diethyl pyrocarbonate and is prepared from various US patents that have been reviewed. Eye lens maintenance liquid has 6 different substances that make it up and is prepared based on the calculations of the research group of this article. The amount and moles of these medical and chemical substances have been accurately calculated as so cell culture water (hem's f10) based on the series of substances its creator will be further explained. The literature review of these works will be inspected in the text of the article.

Agriculture has always been one of the most important and stable parts of human life for thousands of years because agricultural activities produce and supply raw materials for the food industry and animal feed. With the rapid increase of the population on the planet, besides the need to increase agricultural production, mankind will face many limitations in the supply of resources such as land, water, soil, etc. Although various fertilizers and pesticides have been very beneficial in increasing the production of agricultural products, their residues in soil and water cause damage to the environment, vegetation, and living organisms. The use of various nano-based technologies in agriculture (for example, in the design of nano-fertilizers/nano-pesticides with controlled release, nano-sensors, nano-fuels, nano-based soil conditioners, water treatment systems, gene transfer to plants, etc.) can increase agricultural production and save costs reduce environmental risks due to the controllable amount of agrochemical release, the right time, and the target area of agrochemicals. Nanotechnology can be further used to detect diseases in a rapid manner, improve the ability of plants to absorb nutrients from the soil, enhance food quality and safety, and reduce agricultural inputs. However, the use of nanotechnology in agriculture is still in the early developmental stage, and more research is needed to understand the potential risks of nanomaterials. Nano-enhanced products should undergo the same thorough approval processes as conventional pesticides and fertilizers. In addition, it is crucial to exercise caution in their use to minimize the release into groundwater.