الملخص الإنجليزي
Natural waters nowadays are polluted by various hazardous chemical substances from
many industrial activities. The harmful effects of chemicals on the earth’s ecosystems are
a cause for serious concern. Several of these chemicals, such as azo dyes, herbicides, and
pesticides, are present in rivers and lakes and are in part suspected of being endocrinedisrupting chemicals (EDCs). Although it is still being discussed whether such chemicals
influence human beings or not, it is necessary to develop efficient techniques for the
elimination and decomposition of those EDCs from water and wastewater as soon as
possible. To address the environmental challenges caused by toxic organics such as
Bisphenol A photocatalytic degradation is a promising option. The present study
investigates the green synthesis of TiO2@g-C3N4 nanocomposites and their application in
the photocatalytic degradation of toxic organics including Bisphenol A and an insecticide
Malathion. In this study leaf extract from the Ziziphus jujube plant was utilized as a green
template making the synthesis environmentally friendly, utilizing renewable resources,
and employing facile and cost-effective methods for the preparation of TiO2. The prepared
Titanium dioxide (TiO2) and graphitic carbon nitride (g-C3N4) have been used in various
percentages to prepare its composite materials and applied for photocatalytic studies. The
nanocomposites were characterized using multiple advanced analytical techniques
including UV-Vis DRS, FESEM, EDXS, FTIR, XPS, and XRD to analyze the structural
and morphological properties. The photocatalytic activity of the synthesized
nanocomposites was evaluated through the degradation of toxic organic pollutants
including Bisphenol A and Malathion under UV light irradiation. The results indicated
71% degradation of Bisphenol A and 74% degradation of Malathion, with the 50%
TiO2@g-C3N4 nanocomposites exhibiting the highest photocatalytic degradation towards
Bisphenol A and 20% TiO2@g-C3N4 towards Malathion, whereas, both showcased higher
performance than the individual TiO2 and g-C3N4 nanostructured materials.
