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In this work it was used extracted lignin from oil palm empty fruit bunch by kraft delignification process as environmentally friendly photo-stabilizer of Poly (vinyl chloride) thin films. Up to date writing this paper, nobody has used this type of extracted lignin as PVC photo-stabilizer. Therefor this significant application was exhibited in this study by utilizing lignin as eco-friendly photo-stabilizer of PVC. Many approaches have been applied to test the efficiency of it as natural additive of PVC. Infrared spectra shows the growing of two specific bands during irradiation belong to carbonyl (C O) and alkene (C C) groups due to the photo-degradation. It was demonstrated that using lignin inhibits the formation of these two peaks substantially and stabilize the polymer. Various other experiments were done such as weight loss percentage, average molecular weight and surface study by AFM and SEM. All the results were in agreements and proved that lignin could be used as an excellent photo-stabilizer of PVC. Moreover it was demonstrated that increasing the concentration of lignin from 0.5% to 1% per polymer weight has increase the stability of PVC. It was also suggested the mechanism of stability hence lignin is highly aromatic and has a lot of phenolic hydroxyl groups which make it a very good UV-blocker and excellent free radical scavenger.

Since pollution is very serious problem threating the environmental eco-system around the world, but people do not usually treat this issue properly. Water is contaminated with different type of pollutants such as organic, inorganic, heavy metals, pesticides, dyes, phenols, and many other pollutants. Using adsorption phenomenon is very practical, easy and common method to remove pollutants from water. Owing to the significant properties of lignin such as high surface area, porosity, availability in huge amount, it was chosen to be used as an adsorbent surface of various pollutants. Herein it is going to review some of important literatures regarding that. Another serious problem that is threatening the marine eco-system, human health, and influence the global warming is the huge consumption of plastic polymers every year. Thus, reducing the consumption of plastic polymers is significantly matter. Lignin chemical structures are highly oxygenated and have several aromatic units, so by definition lignin can act as an antioxidant, free radical scavenger and photo-stabilizers. As the chemical structure of monomer moieties to form lignin are highly aromatic so it is suitable to work as UV- blocker to stop the photo-degradation of plastic.

Novel extracted natural stabilizer for the polymer was investigated in this study. The natural anti-aging was extracted from plants and it is demonstrated that this type of stabilizers are suitable for biodegradable polymers. Gynostemma pentaphyllum (0.01–0.03 wt%) were extracted and added to the poly(vinyl chloride) blend. The achieved polymeric films were exposed to an accelerated UV light aging process for 300 hours at ambient temperature. The efficiency of tested natural stabilizer was linked to blank PVC films. FTIR spectroscopy, weight loss, electronic microscope and scanning electron microscopy were performed. Using small amount of natural stabilizer is significantly beneficial because it does not influence the PVC properties.

In the present study, removal of safranin dye from water bodies was investigated using natural biosorbent (Thyme leaves (TEL)). The influence of multiple factors such as as contact time (15 – 105 mins), adsorbent dose (25 to 350) mg/l , adsorbate dose (5 to 40)mg\L, and temperature (25 to 55)o C were taken for investigation. The adsorption isotherms were described by utilized Langmuir, Freundlich and Dubnin-Radushkevich models, Freundlich isotherm model found to be best suited with experimental data out of 3 isotherm The adsorption process followed pseudo second order model.

The occurrence of accidents can be only being restricted to workplaces as they can occur at homes. Therefore, people should be aware of potential risks at home so that accidents can be avoided. This article deeply touches some of the realistic home accidents by explaining and analyzing them to be as beacon for others to avoid their occurrence. This has a paramount importance to alert people to be careful and take proper actions to avoid accidents. In this research, we discussed the issue of flammable gases, their severity and the need for careful handling of them, especially in hot climates, in addition to the fire hazards resulting from them. And due to the importance of accidents resulting from high electrical loads and fires that can happen as a result of this, this topic was covered by reviewing household accidents resulting from poor wiring, additional loads and poor connections.

In this short review, it is going to discuss the chemical structure of lignin. Hence the chemical structure of lignin is phenolic high crossed linking polymer so this type of polymers has high rigidity and not so easy to decay. Thus Lignin is insoluble in most organic solvent and water but slightly soluble in basic solutions. Mono-lignols are monomers to form crosslink polymer (lignin) and there are three main types (paracoumaryl. coniferyl and sinapyl) of these monomers. Lignin’s separation process is called delignification which is the procedure of extraction lignin from botanical source. Several analytical methods have been reviewed of delignification process and the most two common approaches are kraft pulping process by utilizing alkaline solution and organosolv pulping process by utilizing organic solvents.

A new tin(IV) complex was synthesized to inhibit the effect of UV light on PVC films. The new dibutyl tin(IV) complex coordinated to captopril as a ligand (Bu2SnL2) were used as additive to reduce the deterioration of PVC films under irradiation of UV light. Tin (IV) complex efficiency was examined under accelerated UV irradiation conditions for 300h at ambient temperature. The shifts in the FTIR index of hydroxyl, carbonyl and carbine, in addition to changes in weight, viscosity and surface morphology was used to evaluate the performance of the new complex as a photostabilizer for PVC films.