Dipti Das’s research while affiliated with Swami Vivekananda University and other places

The fabricating of extremely effective, economical, ecologically safe, and reusable nanoparticle (NP) catalysts for the removal of water pollution is urgently needed. This study, spectroscopically optimizes the process parameters for the biogenic synthesis of AgNP catalysts using Cledrdendrum infortunatum leaf extract. The optimization of several synthesis parameters was systematically studied using UV–Vis spectroscopy to identify the ideal conditions for AgNPs formation. The AgNPs are spherical with a size of ~ 20 nm, pure and stable. Mechanistic insights into the biogenic synthesis process were explored. The photocatalytic performance of biogenic AgNPs was evaluated for the degradation of three common (crystal violet, thioflavin T, and methylene blue) dyes as models in ternary mixtures under the influence of sunlight. AgNPs show excellent photocatalytic efficiency in terms of degradation percentage (82.89–96.96% within 110 min), kinetics (0.0247–0.0331 min–1), half-life (20.96–28.11 min), and T80 (48.67–65.28 min) and also easily recovered and reused. Ecological safety assessment of the treated wastewater was assessed on the growths of rice, mustard, and lentil plants, and preliminary findings demonstrated that seedling growths for treated wastewater were nearly similar to the control sample but retarded in dye-contaminated wastewater suggesting potential use of treated wastewater for sustainable agriculture without compromising ecological balance. So, this study explores biogenic AgNPs as cost-effective, safe, and sustainable photocatalytic agents for the remediation of hazardous mix dyes and real-life applications of treated water for agricultural purposes. Supplementary Information The online version contains supplementary material available at 10.1038/s41598-024-82341-7.

One of the biggest environmental problems facing the world today is the soil contamination caused by industrialization and the widespread use of chemicals. "Bioremediation" is an affordable and ecologically beneficial cleanup method that employs microorganisms to swiftly and efficiently break down dangerous pollutants. Substances that are toxic are changed into less harmful forms. The ability of fungi to change a variety of hazardous compounds has led to the possibility of using them in bioremediation. Mushroom-foring fungi, mostly basidiomycetes, are some of the natural most powerful decomposers due to their quick development and huge biomass output. They also emit strong extracellular enzymes. Among these enzymes are lignin peroxidases, laccase, and manganese peroxidase. Several mushrooms have been used to remove contaminants from contaminated environments, including Agaricus bisporus, Pleurotus ostreatus, and Phanerochaete chrysosporium Trametes versicolor. Bioremediation has made use of Lentinus squarrosulus, Pleurotus tuber-regium, P. ostreatus, and P. pulmonarius. This paper highlights the use of mushrooms for bioremediation as well as applying fungal mycelia in bioremediation, in general referred to as myco-remediation. A brief summary of the future of using mushrooms for bioremediation is also provided.

Increasing anthropogenic practices for industrialization and rapid gloalization have contributed to problems of metal – induced toxicity, results in severe environmental deterioration. In the current scenario, heavy- metals contamination is a major threat to living beings of the world because of these toxic metals persist in the environment for a prolong time. The phytoremediation is considered as a suitable process in present days to eliminate heavy-metals from environment as its cost- effectiveness, eco-friendliness etc. In the field of phytoremediation, the ornamental plants can be used for dual purpose – cleaning the environment and bringing the aesthetic value to the site. The ornamental plant is used as a test plant because of their high biomass and accumulate more heavy metal concentration from the soil. Moreover, as ornamental plants are not edible, so the risk of biomagnifications and bioaccumulation into the food web is reduced. This comprehensive review highlights recent progress on the applicability and advantages of ornamental plant for the phytoremediation potential in heavy- metals contaminated soil. In addition, briefly discuss on several factors that affecting the phytoremediation techniques of heavy metals and addressed their future directions for sustainable treatment of heavy metals.

Now a days, Phytoremediation is treated as a set of emerging techniques that use several selected plants to contain, eradicate, immobilize or degrade contaminants from water and soil in order to clean the contaminated sites. Recent researches have directed to the application of non-edible floriculture plants having the capability to erase the toxic metals from polluted environment including their aesthetic value as a good proposal for phytoremediation. The plant Tagetes erecta Linn., locally recognized as Ganda Phul (Marigold) that belongs to the family of Asteraceae can grow widely in heavy metal stress of Cd, Cr, Pb etc. The plant species can absorb and accumulate varieties of contaminated heavy metals like Pb, Cr, As, Cd, Co, Hg etc. This article includes a brief overview about the toxic impact of the Cr, Cd, and Pb on the plant. In addition, the discussion highlights recent progress on the application of phytoremediation competence of the plant, Tagetes erecta Linn. concerning with the heavy metals.

The increase of heavy metals in natural resources, including land and water has been rapidly raised due to a variety of natural methods, higher agricultural activities, contaminated irrigation water, speedy industrial development, amplified industrial wastes and mining. Heavy metals (HM) are able to remain in the environment longer time and go in the food chain, and ultimately accumulate in humans for biomagnification since they are not biodegradable. HMs contamination is extremely dangerous for humans and the ecology due to its poisonous nature. Traditional methods of cleanup are expensive and could harm the environment. Therefore, phytoremediation is an alternate method via plants to eliminate toxic HMs from the atmosphere as well as to avoid additional contamination, due to its environment-friendly, economic, efficient, exclusive and cost-effective approach. Aquatic plants can be utilized to decontaminate the contaminated sites as they are not food crops, thus reducing the danger of food chain contamination. Here, sources of HMs and their impact on human health have been briefly discussed. Several phytoremediation techniques and factors affecting the phytoremediation methods are also described. In addition, different strategies to decontaminate the metal-polluted water using aquatic plants are also reviewed. Finally, future perspectives for usages of aquatic plants in phytoremediation techniques were briefly summarised.